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Service Manual
ViewSonic VG500-2
Model No. VLCDS24349-2W
15 Color TFT LCD Display
ViewSonic381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
VG500-2_SM_679-Rev. 1a - Oct. 2003
Copyright
Disclaimer
Trademarks
Copyright 2003 belongs to Viewsonic Corporation. All rights reserved. No part ofthis publication may be reproduced, transmitted, stored in a retrieval system, ortranslated into any language or computer language, in any form or by any means,electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without theprior written permission of ViewSonic Corporation.
ViewSonic makes no representations or warranties, either expressed or implied, withrespect to the contents hereof and specifically disclaims any warranty ofmerchantability or fitness for any particular purpose. Further, ViewSonic reserves theright to revise this publication and to make changes from time to time in the contentshereof without obligation of ViewSonic to notify any person of such revision orchanges.
Optiquest is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respectiveowners.
ViewSonic is a registered trademark of ViewSonic Corporation.
Revision History
Revision Date Description of Changes Approval1a Oct,23 '03 Initial Release DCN-3744 Bonnie Ting
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ViewSonic Corporation ii Confidential - Do Not Copy VG500-2
TABLE OF CONTENTS
1. Precautions and Safety Notices
2. Specification
3. Front Panel Function Control Description
4. Circuit Description
5. Adjusting Procedure
6. Trouble Shooting Flow Chart
7. Recommended Spare Parts List
8. Exploded Diagram And Spare Parts List
9. Block Diagram
10. Schematic Diagrams
11. PCB Layout Diagrams
1
2
10
16
17
23
27
34
41
43
51
1.1. SAFETY PRECAUTIONS
This monitor is manufactured and tested on a ground principle that a user's safety comes first. However,
improper use or installation may cause damage to the monitor as well as to the user. Carefully go over the
following WARNINGS before installing and keep this guide handy.
WARNINGS:
This monitor should be operated only at the correct power sources indicated on the label on the rear
end of the monitor. If you're unsure of the power supply in your residence, consult your local dealer or
power company.
Use only the special power adapter that comes with this monitor for power input.
Do not try to repair the monitor your self as it contains no user-serviceable parts. This monitor should
only be repaired by a qualified technician.
Do not remove the monitor cabinet. There is high-voltage parts inside that may cause electric shock to
human bodies, even when the power cord is unplugged.
Stop using the monitor if the cabinet is damaged. Have it checked by a service technacian.
Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable immediately
and consult your service technician.
Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the glass screen.
Keep the monitor away from magnetic objects, motors, TV sets, and transformer.
Do not place heavy objects on the monitor or power cord.
1.2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection
afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages,
wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use
of substitute replacement parts which do not have the same safety characteristics as specified in the parts list
may create shock, fire, or other hazards.
1.3. SERVICE NOTES
1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
2. When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit board, keep
the resistor about 5mm away from circuit board.
3. Keep wires away from high voltage, high temperature components and sharp edges.
4. Keep wires in their original position so as to reduce interference.
5. Usage of this product please refer to also user's manual.
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1. Precautions and Safety Notices
2.1 PRODUCT SPECIFICATIONS
LCD Panel 15.0 TFT
Power Management Energy Star compliant VESA
DPMS compatible
10
Horizontal: -60~+60
Vertical: -55~+45
Tilt -5~20
Contrast Ratio
Brightness
400:1 typical
250:1 minimum
200cd/m (min)
250cd/m (typ.)
Response Time Tr: 7ms, Tf: 23ms
Active Display Area 304.1mm(H) x 228.1mm(V)
Temperature Operating: 0C~+40C (240h)
Storage: -20C~+60C (240h)
Compliance UL, CSA, FCC, CE, CB, BSMI, Energy Star, TUV,
Semko, Nemko, Femko, Demko, DHHS, MPRII,
TCO99, GOST-R, C-Tick, VCCI, CCC
Power Input Voltage: 100~240 Vac
Consumption: 30Watts (Max.)
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2. Specification
2.2. SUPPORTING MODES
Primary Preset: VESA 1024 x 768 @ 60Hz
Factory Preset Modes: 1. VGA 640x350 @ 70Hz, 25.176MHz
2. VESA 640x480 @ 60Hz, 25.175MHz
3. MAC 640x480 @ 67Hz, 31.500MHz
4. VESA 640x480 @ 72Hz, 31.50MHz
5. VESA 640x480 @ 75Hz, 31.50MHz
6. VESA 720x400 @ 70Hz, 28.320MHz
7. VESA 800x600 @ 56Hz, 36.00MHz
8. VESA 800x600 @ 60Hz, 40.00MHz
9. VESA 800x600 @ 72Hz, 50.00MHz
10. VESA 800x600 @ 75Hz, 49.5MHz
11. MAC 832x624 @ 75Hz, 57.272MHz
12. VESA 1024x768 @ 60Hz, 65MHz
13. VESA 1024x768 @ 70Hz, 75.000MHz
14. VESA 1024x768 @ 72Hz, 78.000MHz
15. MAC 1024x768 @ 75Hz, 80.000MHz
16. VESA 1024x768 @ 75Hz, 78.750MHz
2.3. D-SUB CONNECTOR PINASSIGNMENT
Pin No. Symbol Signal Description
1 R RED 0.7vp-p (VIDEO)
2 G GREEN 0.7vp-p (VIDEO)
3 B BLUE 0.7vp-p (VIDEO)
4 GND GROUND
5 GND GROUND
6 GND GROUND
7 GND GROUND
8 GND GROUND
9 VCC_+5V PC +5V
10 GND GROUND
11 N.C.
12 DDC_SDA DDC1/2B TTL
13 DDC_SCL DDC1/2B TTL
14 VGA_VSYNC VSYNC TTL positive or negative
15 VGA_HSYNC HSYNC TTL positive or negative
!
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2.4 Main DC+12V Input (J800 on I/F Board)
Pin No. Symbol Function
1 GND Ground
2 DC+12V Main DC+12V Input
3 GND Ground
2.5 Audio Input Jack (J701 on I/F Board)
Pin No. Symbol Function
1 Ground
2 L_CH_Audio Input
3 R_CH_Audio Input
4 L_CH_Audio Return
5 R_CH_Audio Return
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XGA Interface Board (PWB-0535)
CON1 : Connect with Control board
Pin No. Symbol Function
1 Mute
OSD, Audio Mute Function Button
2 SP- Adjust audio volume smaller
3 SP+ Adjust audio volume louder
4 Menu Call out or close the OSD menu or come back to the
previous menu
5 Down Choose the next one item or value
6 Up Choose the last one item or value
7 Sel Select
8 GND Ground
9 Amber Indicate the system in power saving mode
10 Green Indicate the system in active mode
11 GND Ground
12 Power Power on/off control port
CON3 : Connect to the PWB-0537, which is power/audio board
Pin No. Symbol Function
1 SENSOR Detect audio I/P signal
2 GND Ground
3 +12V DC+12V
4 GND Ground
5 CCFL_EN Backlight lamps ON(high)/Off(Low) control
6 GPIO2/PWM2 Brightness adjustments (Low Max./ Hi. Min.)
7 MUTE+ Audio Must control (High means SPK off, Low means On)
8 GND Ground
9 +5V DC+5V
10 +5V DC+5V
11 STDBY Audio Stand-by control (Hi means stand-by, Low means Normal)
12 VOLUME Speaker volume control (0V means Sound off, 1.2V means MAX.)
2.6 Internal Connector & Pin Assignment
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CON5 : Output to panel
Pin No. Symbol Function
1 GND Ground
2 GND Ground
3 CLKH- Sampling Clock for line pixels
4 GND Ground
5 GND Ground
6 OB7 Blue data signal of odd pixel
7 OB6 Blue data signal of odd pixel
8 OB5 Blue data signal of odd pixel
9 OB4 Blue data signal of odd pixel
10 OB3 Blue data signal of odd pixel
11 OB2 Blue data signal of odd pixel
12 OB1 Blue data signal of odd pixel
13 OB0 Blue data signal of odd pixel
14 GND Ground
15 OG7 Green data signal of odd pixel
16 OG6 Green data signal of odd pixel
17 OG5 Green data signal of odd pixel
18 OG4 Green data signal of odd pixel
19 OG3 Green data signal of odd pixel
20 OG2 Green data signal of odd pixel
21 OG1 Green data signal of odd pixel
22 OG0 Green data signal of odd pixel
23 GND Grounding
24 OR7 Red data signal of odd pixel
25 OR6 Red data signal of odd pixel
26 OR5 Red data signal of odd pixel
27 OR4 Red data signal of odd pixel
28 OR3 Red data signal of odd pixel
29 OR2 Red data signal of odd pixel
30 OR1 Red data signal of odd pixel
31 OR0 Red data signal of odd pixel
32 GND Ground
33 GND Ground
34 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
35 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
36 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
37 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
38 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
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Pin No. Symbol Function
39 VDDA DC+9V for panel D/A reference voltage to make gray scale smooth
40 GND Ground
41 GND Ground
42 GND Ground
43 GND Ground
44 EPOL O/E reference voltage selection
45 HMS2_E Even pixel inverter for power saving and reducing EMI
46 HMS1_O Odd pixel inverter for power saving and reducing EMI
47 DHS_LP Latch pulse for per line
48 STH1 Trigger the first pixel per line
49 GND Ground
50 GND Ground
CON6 : Output to panel
Pin No. Symbol Function
1 GND Ground
2 GND Ground
3 VEEG DC-6V for frame dark
4 VEEG DC-6V for frame dark
5 VDDG DC+18V for frame white
6 VDDG DC+18V for frame white
7 CLKV Sampling Clock for frame line
8 STV1 Trigger the first line per frame
9 VDDD DC_3.3V for panel VCC
10 VDDD DC_3.3V for panel VCC
11 VDDD DC_3.3V for panel VCC
12 VDDD DC_3.3V for panel VCC
13 VDDD DC_3.3V for panel VCC
14 VDDD DC_3.3V for panel VCC
15 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
16 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
17 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
18 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
19 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
20 VCOM Panel flicker adjustment, Adjustable voltage from DC3.3V ~4V
21 GND Ground
22 GND Ground
23 EB7 Blue data signal of even pixel
24 EB6 Blue data signal of even pixel
25 EB5 Blue data signal of even pixel
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26 EB4 Blue data signal of even pixel
Pin No. Symbol Function
27 EB3 Blue data signal of even pixel
28 EB2 Blue data signal of even pixel
29 EB1 Blue data signal of even pixel
30 EB0 Blue data signal of even pixel
31 GND Ground
32 EG7 Green data signal of even pixel
33 EG6 Green data signal of even pixel
34 EG5 Green data signal of even pixel
35 EG4 Green data signal of even pixel
36 EG3 Green data signal of even pixel
37 EG2 Green data signal of even pixel
38 EG1 Green data signal of even pixel
39 EG0 Green data signal of even pixel
40 GND Ground
41 ER7 Red data signal of even pixel
42 ER6 Red data signal of even pixel
43 ER5 Red data signal of even pixel
44 ER4 Red data signal of even pixel
45 ER3 Red data signal of even pixel
46 ER2 Red data signal of even pixel
47 ER1 Red data signal of even pixel
48 ER0 Red data signal of even pixel
49 GND Ground
50 GND Ground
POWER/AUDIO Board (PWB-0537)
JP2 : Connect to the I/F Board
Pin No. Symbol Function
1 Volume Speaker volume control (0V sound off, 1.2V sound Max.)
2 Stdby Audio standby control (High standby, Low normal)
3 DC+5V DC+5V
4 DC+5V DC+5V
5 GND Ground
6 MUTE+ Audio mute control (Voltage High speaker off, Low speaker on)
7 BRT Brightness adjustment (Low is max., High is Min.)
8 CCFL_EN Backlight lamps enable (ON/high, OFF/low)
9 GND Ground
10 DC+12V DC+12V
11 GND Ground
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12 SENSOR Detect audio I/P signal
P1 : Connect to inverter
Pin No. Symbol Function
1 DC+12V DC+12V
2 GND Ground
3 BRT Brightness adjustment (Low is Max., High is Min.)
4 DC+5V DC+5V
5 CCFL_EN Backlight lamps enable (ON/high, OFF/low)
CN701 : Connect to control board, control the audio
Pin No. Symbol Function
1 L- L_CH_SP_-Signal
2 L+ L_CH_SP_+Signal
3 GND_S1 Ground
4 R+ R_CH_SP_-Signal
5 R- R_CH_SP_+Signal
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3. Front Panel Function Control Description
Use the buttons on the front control panel to display and adjust the OSDcontrols which display on the screen. The OSD controls are explained at the top of the next page and are defined in Main Menu Controls on page 9.
Front Control Panel shown below in detail
Main MenuWith OSD controls
Speaker SpeakerScrolls through menu options and adjusts the displayed control.Also a shortcut to display the Contrast adjustment control screen.
Power On/Off
Displays the control screen for the highlighted control.Also toggles between two controls on some screens.
Also a shortcut to Auto Image Adjust.
Power lightGreen = ONOrange = Power
SavingTemporarily silences audio output.
Displays the Main Menu or exits the control screen and saves adjustments.
Decreases or increases volume.
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Do the following to adjust the screen image:1 To display the Main Menu, press button [1].
2 To highlight a control you want to adjust, press or to scroll up or downthe Main Menu.
3 To select the highlighted control, press button [2]. A control screen appears.4 To adjust the control, press the up or down buttons.5 To save the adjustments and exit the menu, press button [1] twice.The following tips may help you optimize your display: Adjust your computer's graphic card so that it outputs a video signal 1024 x
768 @ 60 Hz to the LCD display. (Look for instructions on changingthe refresh rate in your graphic card's user guide.)
If necessary, make small adjustments using H POSITION and V POSITION until the screen image is completely visible. (The black border around the edge of the screen should barely touch the illuminated active area of the LCD display.)
The line at the bottom of the screen tells you what you can do next: Exit this menu or Select the control that is highlighted.
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Main Menu ControlsAdjust the menu items shown below by using the up and down buttons.
Control Explanation
Auto Image Adjust automatically sizes, centers, and fine tunes the video signal to eliminate waviness and distortion.Press the [2] button to obtain a sharper image.NOTE: Auto Image Adjust works with most common video cards. If this function does not work on your LCDdisplay, then lower the video refresh rate to 60 Hz and set the resolution to its pre-set value.
Contrast adjusts the difference between the image background (black level) and the foreground (white level).Brightness adjusts background black level of the screen image.
Audio Menu controls are explained below:
Volume increases the volume, decreases the volume, and mutes the audio.
Mute temporarily silences audio output.
Color Adjust provides several color options: preset color temperatures and Custom User Color which allows you to adjust red (R), green (G), and blue (B). The factory setting for this product is 6500K (6500Kelvin).9300K Adds blue to the screen image for cooler white (used in most office settings with fluorescent lighting).6500K Adds red to the screen image for warmer white and richer red. Default setting.5400K Adds green to the screen image for a darker color.Custom User Color Individual adjustments for red, green, and blue.1 To select color (R, G or B) press button [2].2 To adjust selected color, press or .3 When you are finished making all color adjustments, press
button [1] twice.
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Information displays the timing mode (video signal input) coming from the graphics card in your computer. See your graphic cards user guide for instructions on changing the resolution and refresh rate (vertical frequency).VESA 1024 x 768 @ 60 Hz (recommended) means that the resolution is 1024 x 768 and the refresh rate is 60 Hertz.
Manual Image Adjust controls are explained below:
H. Size (Horizontal Size) adjusts the width of the screen image. NOTE: Vertical size is automatic with your LCD display.
H./V. Position adjusts horizontal and vertical position of the screen image. You can toggle between Horizontal and Vertical by pressing button [2]. Horizontal moves the screen image to the left or to the right. Vertical moves the screen image up and down.
Fine Tune sharpens focus by aligning the illuminated text and/or graphic characters.NOTE: Try the Auto Image Adjust (see page 12) before using the Fine Tune control.
Sharpness adjusts the clarity and focus of the screen image.Setup Menu controls are explained below:
Language allows you to choose the language used in the menus and control screens.
Resolution Notice displays the recommended resolution for this LCD display.
Enable allows the Resolution Notice to appear on-screen.
Disable will not allow the Resolution Notice to appear on-screen.
Control Explanation
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Memory Recall returns adjustments to the original factory settings if the display is operating in a factory Preset Timing Mode listed in this user guide.
Exception: This control does not effect changes made with the Custom User Color control.
Control Explanation
OSD Timeout sets the length of time an on-screen display screen is displayed. For example, with a 15 second setting, if a control is not pushed within 15 seconds, the display screen disappears.
OSD Background allows you to turn the On-Screen-Display background on or off.
OSD Position allows you to move the on-screen display menus and control screens.
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Short Cut Key
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User control functions Control buttons :
1 2- + 1. Press power button to power on whole LCD monitor set. Led on the power button will turn to green. 2. Press "2" button while no OSD will activate the Auto Image Adjust function. 3. Press up and down button simultaneously will reset the contrast and brightness to default
value. 4. Press "1" button will enter OSD main menu. 5. Press volume plus, volume minus can directly adjust the audio volume. 6. Press mute button can directly mute on or off the audio volume. 7. Press "1" and "2" button simultaneously will toggle 720x400 and 640x400 mode when input
720x400 or 640x400 mode.
8. Press "1", "down", and "up" button simultaneously will do White Balance.
4.1 Inverter Board Circuit
The diagram of inverter board circuit is shown in Appendix (PWB-0538). The inverter supplies power for
backlight for the LCD panel.
4.2 Power supply Board Circuit
Please refer to power Schematic sheet in Appendix. The 12Vdc from adaptor output is fed into J800 as
power regulation of U801 (AO4403) input power and inverter main power on pin 1 of CN830. The U801 can
provide two independent power sources: a) The 5Vdc will be for main board power. ; b) The another 10.5Vdc
will output as audio power at when audio jet is inserted.
4.3 Scaling controller Board Circuit
The Scaling IC U005 is to convert the input signal from VGA, SXGA and UXGA to a SXGA resolution that
panel can acknowledge.
The scaling IC of MRT MASCOT V2 is a highly integrated System-on-a- Chip with very powerful functions,
including integrated 8 bit triple-channel ADC/PLL, programmable OnPanel timing controller, embedded
microcontroller with parallel ROM interface, OSD engine, sRGB compliance, and PWM back light intensity
control.
The Scaling IC features an integrated timing controller (TCON) that connects directly to commercially
available row and column drivers. All TCON signals OCLK, ECK, ORGB, ERGB, OSP, ESP, OPOL, OINV,
EINV on pin 68 to pin 79 of U005 have programmable drive strengths and can be disabled to control Panel.
The flash memory chip of U001 contains codes via parallel data bus interface to communicate
with Scaling IC U005.
The DDC memory chip of U004 stores DDC data and the NVRAM chip stores timings and setting data.
Since the NVRAM has to get series number information data from DDC chip, both their SDA and SCL 2
the electrical switching of U009 is isolated and controlled by scaling IC pin GPIO7.
4.4 Audio Circuit
The audio Right/Left channels are fed into pin 6 /8 of sound AMP U701 (AN7522) while Audio plug is
inserted on J701 jack. The sound output amplitude will depend on this bias voltage on pin 9 of U701, which
is always controlled by Q702. When mute is activated, the Q703 will be forced to saturation to block sound
output. When standby is activated, the sound outputs of U701 will drive speakers via CN701 connecter.
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4. Circuit Description
ports connected together. In order to avoid conflict on I C interface during the DDC transfer from U004,
Function Test and Alignment ProcedureProduct 15 LCD MONITOR MODEL: VG500-2
Test Equipment Color Video Signal & Pattern ( XGA 1024 x 768 @ 60 Hz 5 white block Pattern )
Hot Key1) All Mode Reset
Press and "power" buttons simultaneously and "Power on" with signal hold
on for 3 seconds. The OSD screen will show "Software Version".
2
Panel adjustment:
1. Select 1024 x 768@60Hz mode, and Crosshatch pattern
2. Press Auto image set up -------Direct access 2 Key
3. Brightness set at maximum
4. Switch pattern to full screen pixel on/off pattern with R, B color off and Green on.
Green color level set at level 255.
5. Adjust VR01 until whole screen display stable and flicker free.
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1. SIGNAL GENERATOR: Chroma 2237 or equivalent
2. MULTIMETER Fluke 45 or equivalent
3. SCREW DRIVER
4. OSCILLOSCOPE Tektronik TDS3054 digital oscilloscope or equivalent
5. SOLDER IRON
6. SOLDER
SERVICE TOOLS & EQUIPMENT REQUIRED
5. Adjusting Procedure
2) Press "
to initialize all modes.
3) Burn In Mode
Press " " button , the OSD will show Burn In Mode Setting
Then set "" or "" buttons , you can find set Burn In Mode Information about this monitor
2
2
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" button , the OSD will show Factory Init.
Then button for 3 seconds, the OSD will show "Memory Recall"
4) White Balance
set White Balance Mode.
Please set the screen on 1024x768 @ 60 Hz resolution 5 white block pattern
5) Power Lock
Press "" and " " buttons simultaneously for 10 seconds , and the Power will be locked. Repeat the action , and the power will
be unlocked.
1
1
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Press "" "" and " " buttons simultaneously for 3 seconds to
6) OSD Lock
Press "" and " " buttons simultaneously for 10 seconds, and the OSD will be locked. Repeat the action and the OSD will be unlocked.
1
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DD C Recorder User Manual
1. Connect the recorder (with Keyport II )to the printer port on your PC.
2. Insert diskette into your PC's floppy drive, then turn on the PC power. 3. A setup main menu will be appear as below :
Select DDC Function Mode
[1
[2 Auto Replace DDC Date [3 Bar Code : xtttddsssss [4 [5 [F5] : Check DDC1 [F6] : Check DDC2 [6 [7] Mode Name : L5CNSE29.HWP [8] Serial NO : sssss [9] DDC Year : 2003 [A] DDC Weeks : 01 4. Recoding Process :
(1) Choose a correct mode name
(2)Press [Caps Lock]then key in the bar code number STHTAA00001, And then Press [Enter].
The screen shows a green color sentence "Receive DDC Data OK"
(3) Be sure both the bar code number and DDC2 data are correct.
(4)After set power off --on, press[F5]to make sure the DDC1 and bar code number are correct.
5.Checking Process :
(1) After SET ON ,Press [F5]then verify DDC1 data .Press[F6] to
verify DDC2 data.
(2) During verification for either DDC1 or DDC2 a green color sentence will appear "Receive DDC Data OK", and will disappear after 10 seconds.
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Zfbs0Xfflt>3114012!!!Tfsjbm!Op!>11112!
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No picture Appear
Does the LED
light up
LED display is
amber
Is it entering into
power saving mode
Restart PC signal
to ensure H. V.
sync are not
absent
End
Reset the Scaling IC
(U005 and U001) by
pushing the power
key or re-plugging the
DC 12V cable
Scaling IC (U005)
Hangs
No
ReplaceU001
End
End
The Voltage across
C801 is 12V
Replace F801
Check O/P of U801 at
pin7, pin10
Replace U801
The Voltage at
L802 O/P is 5V
Replace U802
The Voltage across
Q702 is 5V
Replace Q702
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Pictureshows
Still no Picture
No
No
Next
Replace U004
Yes
Check U004
No
Replace U009
Yes
Check U009
No
Yes
Replace U001
ReplaceU005
MASCOT V2
Still no Picture
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6. Trouble Shooting Flow Chart
The Voltage of I001
#2 is 3.3V
Replace I001 No
Next
Replace Y001, C003,
C004
No
Replace U005
(MASCOT V2 )
End
Check Y001 crystal
clock
Yes
Replace U001
Still No LED
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The Ver. Or Hor.
Sync. Does not hold
Are the output MV2(CLK,H,V,
DE) normal
Tighten two flex
cables at
CON5,CON6
EndPEPLACE MV2
End
Are two flex cables attached firmly at
the LCD panel connectors
Replace V901 (LCD
panel) End
Are two flex cables attached firmly at
CON5, CON6
Are the inputwaveforms of M V2 normal
Tighten two flex
cables at
CON5,CON6
Yes Yes
Yes
Yes
NoNo
No
End
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Check if Audio jack
properly insert
Yes
Press mute key again
to release
YES
NO
Check if CN701 is
connected to U701
properly
No
Replace U701
U701 #1 voltage is
12V
Yes
YES
No sound
Check if mute key
is pressed
Check U801 output
#7 is normal
No
Replace U801
Check U701 output
#2,#4,#10,#12 are
normal
No
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Item ViewSonic P/N Ref. P/N Location Q'ty
1 B-MB-0201-0787 5097616700 PWB-0535 10
2 B-SB-0221-0560 5097617100 PWB-0538 10
3 B-KB-0207-0041 5097616800 PWB-0536 10
4 B-AC-0215-0044 5097616900 PWB-0537 10
5 C-FP-0301-0401 5733715802 3C06 20
6 M-CV-0830-2473 5733715902 3C07A 20
7 C-BC-0302-0535 5733715702 3C01 20
8 M-MS-0808-8273 5731274500 3C14 20
9 M-MS-0808-8278 5731708100 2B01 20
10 M-MS-0808-8279 5731708200 2B02 20
11 M-MS-0808-8275 5731433800 3C02 20
12 PL-PS-0715-0209 5733716002 2B05 20
13 M-MS-0808-8277 5731593000 3C13 20
14 PL-FK-0709-0132 5733636902 3C07B 20
15 M-MS-0808-8284 5733716200 3C07C 20
16 M-MS-0808-8276 5731433901 3C05 20
17 M-MS-0808-8285 5736138100 3C15 20
18 M-CV-0830-2474 5733716102 2B08 20
19 M-MS-0808-8891 5733576902 2B07 20
20 M-MS-0808-8272 5731274401 2B03 20
21 M-MS-0808-8271 5731274301 2B04 20
22 PL-PD-0714-0072 5736138200 2B04C 20
23 PL-PD-0714-0073 5736138300 2B04D 20
24 PL-PD-0714-0074 5736138400 2B04E 20
25 M-MS-0808-8890 5733576802 2B06 20
26 M-MS-0808-8889 5733422902 2B09 20
27 M-MS-0808-8280 5733422700 3C09 20
28 M-MS-0808-8281 5733422800 3C08 20
29 A-AD-0114-0193 5061369420 ADAPT 30
30 M-MS-0808-8287 5784011204 CON1W 20
31 M-MS-0808-8288 5784011205 CON3W 20
32 A-CD-VG500-2 5030043002 Y001 100
33 A-PC-0106-0169 5056705900 P001 100
34 A-PC-0106-0170 5056705939 P002 100
35 M-MS-0808-8286 5784010501 CON7W 100
36 M-WR-0828-0656 5057900521 CON8W 100
37 A-AU-0120-0035 5784010102 AUDIO 100
38 A-VC-0101-0272 5784011503 15P1 100
39 P-BX-0601-0878 9513340156 1P01 100
40 P-FM-0602-0608 9522880157 1P02 100
41 P-FM-0602-0609 9522880257 1P03 100
42 M-LCD-0826-0169 5051253608 PANEL 5
43 M-FC-0809-0080 5784610007 FFC1 20
44 E-SK-0412-0076 5055123300 SPK-L 20
45 E-SK-0412-0077 5055123301 SPK-R 20
46 E-D-0403-2128 6640007723 DA01 20
47 E-D-0403-2126 6613000554 DN01 20
48 E-IC-0401-2562 6640003862 I001 20
49 E-IC-0401-2888 6640010550 I002 20
50 E-IC-0401-2571 6646021653 I003 20
51 E-IC-0401-2570 6646021652 I004 20
52 E-Q-0402-1180 6622002257 Q002 20
53 E-Q-0402-7017 6623002956 Q003 20
54 E-Q-0402-1564 6626007054 Q004 20
55 E-Q-0402-1561 6621039854 Q005 20
56 E-Q-0402-1563 6626007053 Q006 20
57 E-Q-0402-1561 6621039854 Q007,Q008 20
58 E-IC-0401-2895 6647106005 U001 20
59 E-IC-0401-2891 6647024302 U001 20
60 E-IC-0401-2892 6647026357 U002 20
61 E-IC-0401-2890 6646033553 U003 20
CAT24WC16J-TE13
SN74LVC14ADR
SI2301DS
DTC114TKA
M8064 MRT MCU
W78E65P WINBOND MCU
MMBT3904 60V 0.1A
MMBT3906
SI2303DS
DTC114TKA
RC1117M-3.3V
AIC117-33CY(AK33)
RT9164CG
RT9161A-33CG
SPEAKER(L)
SPEAKER(R)
KA431
BAV99 75V 0.15A
EPS -Top
EPS-Bottom
CPT Panel
UL2896 L=39mm k-50 p=0.5
ELECTRONIC
Inverter Wire
AUDIO Cable
VGA Cable
Carton box
PACKAGE
User's Guide(CD-ROM)
Power Cord (UL)
Power Cord (VDE)
Key TO DC-AMP Wire
Name Plate
Power ADAPTER(LITEON)
Key Pad Wire 12PIN
Key Pad Wire 5PIN
Foot Rubber 3
Neck 1 (Front)
View Sonic Logo
Bird Logo
DescriptionMAIN Board Ass y PWB-0535
Inverter Board Ass'y PWB-0538
Key Pad Board Ass'y PWB-0536
Audio&Power Board Ass'y PWB-0537
F/C
CABINET
F/C2 (Speaker cover)
Back Cover
SHIELD Plate
Code keeper
Button (Function key)
INDICATE (LED Lens)
Hinge (R)
Hinge (L)
Mounting Bracket
Base
Kensington Security Slot
Mount Rubber
Hinge Cover
Neck2 (Back)
Neck Plate
Base Plate
Foot Rubber 1
Foot Rubber 2
!!!ViewSonic Corporation 27 Confidential Do Not Copy VG500-2
7. Recommended Spare Parts List
Item ViewSonic P/N Ref. P/N Location Q'tyDescription62 E-IC-0401-2893 6647051834 U004 20
63 E-IC-0401-2894 6647053550 U005 20
64 E-Q-0402-1622 6644009053 U007 20
65 E-IC-0401-2407 6646021651 U008 20
66 E-R-0405-6578 5162161020 VR01 20
67 E-X-0415-0135 6699114210 Y001-Y002 20
68 E-D-0403-2072 6615009858 ZD01-ZD04 20
69 E-D-0403-2127 6618018154 LED1 20
70 M-SW-0815-0187 5054512951 S101-S108 20
71 E-D-0403-2047 6613003059 D701 20
72 E-FS-0410-0099 5054440003 F801 20
73 M-MS-0808-8888 5056302056 J701 20
74 E-IC-0401-2568 6644005851 U701 20
75 E-FS-0410-0112 5054430090 F001 20
76 E-IC-0401-2520 6646000650 I001 20
77 E-IC-0401-2889 6645010202 I002 20
78 E-L-0407-1589 5062128355 L001 20
79 E-Q-0402-1180 6622002257 Q001 20
80 E-Q-0402-1621 6626004652 Q003-Q006 20
81 E-T-0408-0513 5061376800 T001-T002 20CD-T-1032-575T
YC54T*4R7M 4.7UHM
MMBT3904 60V 0.1A
2N7002LT1
OZ960S
TPC-8401
RLS4148
FUSE 6125FA4A 125V/4A
EAR-PHONE JACK LJE0359A
AN7522
MMSZ5232B
DIODE LED
TACT SW. DC12V50MA
63V/3A 3216FF-3A-TR
SI4435DY-TI-A 30V 8A
RT34063ACS
0.3W B 1.0K OHM M
12M CRYSTAL
S524A40X21
MASCOT V2 MRT
!!ViewSonic Corporation 28 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Description Location
1 5782510261 CONNECTOR T-S12BZR CON1
3 5782511011 CONNECTOR T-B12B-ZR CON3
4 5782711011 CONNECTOR 1216-064-15S-AAC CON4
5 5782971502 CONNECTOR IL-FHR-50S-HF CON5,CON6
6 5240615191 CAPACITOR MONOLITHIC SMD REEL 150P 0603 CP1
7 5230656291 CAPACITOR MONOLITHIC SMD REEL 5600P 0603 CZ1
8 5218007991 CAPACITOR ELECTROLYTIC MVY 100uF/16V C1
5230013991 CAPACITOR MONOLITHIC SMD REEL 0.1U 0603 C2,C5,C6,C7,C8,C9,C10,C11,C12,C13,C14,C17,C19,
C21,C22,C25,C26,C28,C33,C39,C42,C46,C48,C59,C60,
C61,C62,C63,C64,C65,C66,C67,C68,C69,C70,C71,C72,
C73,C76,C129,C133,C134,C136,C141,C145,C146,C151,
C154
10 5240622091 CAPACITOR MONOLITHIC SMD REEL 22P 0603 C3,C4,C78,C79
11 5250810591 CAPACITOR MONOLITHIC SMD REEL IUF 0805 C15
12 5214020202 CAPACITOR ELECTROLYTIC MVY 470uF/16V C16
13 5218006391 CAPACITOR ELECTROLYTIC MVY 220uF/16V C18,C140,C149,C153
14 5230610391 CAPACITOR MONOLITHIC SMD REEL 0.01U 0603 C23,C55,C56
15 5240610091 CAPACITOR MONOLITHIC SMD REEL 10P 0603 C29,C30,C31,C32
E-C-0404-4903 5240610191 CAPACITOR MONOLITHIC SMD REEL 100P 0603 C34,C35,C36,C37,C50,C51,
C53
17 5218007991 CAPACITOR ELECTROLYTIC MVY 100uF/16V C38,C40,C43,C44,C45,C128
18 5218008891 CAPACITOR ELECTROLYTIC MVY 22uF/16V C41
5218007891 C47,C77,C130,C137,C138,C144,
C147,C148,C150,C152
5240647091 CAPACITOR MONOLITHIC SMD REEL 47P 0603 C49,C52,C80,C81,C82,C83,C84,C85,C86,C87,C88,C89,
C90,C91,C92,C93,C94,C95,C96,C97,C98,C99,C100,
C101,C102,C103,C104,C105,C106,C107,C108,C109,C110,
C111,C112,C113,C114,C115,C116,C117,C118,C119,C120,
C121,C122,C123,C124,C125,C126,C127
21 5230647291 CAPACITOR MONOLITHIC SMD REEL 4700P 0603 C54,C57,C58
22 5218012091 CAPACITOR ELECTROLYTIC MVY 47uF/25V C131,C132,C143
23 5240612191 CAPACITOR MONOLITHIC SMD REEL 120P 0603 C135
24 5240633191 CAPACITOR MONOLITHIC SMD REEL 330P 0603 C139
25 5218011991 CAPACITOR ELECTROLYTIC MVY 22uF/25V C142
26 E-D-0403-2128 6640007723 IC VOLTAGE REGULATOR KA431AZ DA1
27 E-D-0403-2126 6613000554 DIODE SMD SWITCHING BAV99 DN1,DN2,DN3
28 6613003753 DIODE SMD SWITCHING 1N4148 D1
29 6615002200 ZENER DIODE SR24 D2,D3,D4,D5,D6
30 6615025153 TZM5234B/TZQ5234B/MMSZ5234B D7
31 E-IC-0401-2562 6640003862 IC VOLTAGE REGULATOR RC1117M-3.3 I1
32 E-IC-0401-2836 6640003858 IC VOLTAGE REGULATOR LT1117CST-3.3 I2
33 E-IC-0401-2571 6646021653 IC LDO RT9164CG I3
34 E-IC-0401-2570 6646021652 CHIP BEAD RT9161A33CG I4
35 5062130401 CHIP BEAD 2CB321611A700 L1,L2,L3,L4,L5,L11,L15
36 5062134801 INDUCTOR MULTILAY CHIP 2CI321611-R15 L10
37 5062128352 COIL CHOKE SS1003151MS/YC104R*151M L12
38 5062135100 COIL CHOKE SMD YC54*680K/SR0604680KS L13,L14
39 E-Q-0402-1180 6622002257 TR NPN SMD MMBT3904 Q1,Q2
40 E-Q-0402-7017 6623002956 TR PNP SMD MMBT3906 Q3
41 E-Q-0402-1564 6626007054 TR FET MOS SI2303DS/FDN360P Q4
42 E-Q-0402-1561 6621039854 TR NPN HF DTC114TKA/KSR1110 Q5,Q7,Q8,Q10
43 E-Q-0402-1563 6626007053 SI2301DS/FDN360P/AO3401 Q6,Q9
44 5160310156 RESISTOR NETWORK SMD REEL 4.7K*4 RP2,RP3
RP4,RP5,RP6,RP7,RP8,RP9,
RP10,RP11,RP12,RP13,RP14,
RP15
46 5134351109 RESISTOR.THICK FILM CHIP 0603 1/16W 510R R2,R1
47 5134315109 RESISTOR.THICK FILM CHIP 0603 1/16W 150R R3
48 E-R-0405-7078 5134347209 RESISTOR.THICK FILM CHIP 0603 1/16W 4.7K R4,R5,R11,R36,R37
49 5134310209 RESISTOR.THICK FILM CHIP 0603 1/16W 1K R6,R7,R13,R8,R9,R47,R49,R55
R10,R20,R44,R46,R48,R70,
R75
R14,R15,R16,R33,R35,R38,
R39,R40,R41,R51,R57,R61,
R62,R63
52 5134310409 RESISTOR.THICK FILM CHIP 0603 1/16W 100K R17
53 5134351209 RESISTOR.THICK FILM CHIP 0603 1/16W 5.1K R18
54 5134300009 RESISTOR.THICK FILM CHIP 0603 1/16W 0 OHM R30,R31
55 5134312109 RESISTOR.THICK FILM CHIP 0603 1/16W 120R R21,R23,R24,R26,R27,R29
56 5134175099 RESISTOR.THICK FILM CHIP 0603 1/16W 75R1% R22,R25,R28
57 5134322009 RESISTOR.THICK FILM CHIP 0603 1/16W 22R R34,R32
51
5134310109 RESISTOR.THICK FILM CHIP 0603 1/16W 100R
20
505134310309 RESISTOR.THICK FILM CHIP 0603 1/16W 10K
45
5160310140 RESISTOR NETWORK SMD REEL 68R*4
VG500-2 BOM LIST (PCB-MAIN)
9
16
19CAPACITOR ELECTROLYTIC MVY 10uF/16V
!!ViewSonic Corporation 29 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Description Location58 5134322109 RESISTOR.THICK FILM CHIP 0603 1/16W 220R R43,R42
59 5134315109 RESISTOR.THICK FILM CHIP 0603 1/16W 150R R50,R53,R54,R71
60 5134322209 RESISTOR.THICK FILM CHIP 0603 1/16W 2.2K R56,R74,R82
61 5134315009 RESISTOR.THICK FILM CHIP 0603 1/16W 15R R60
62 5134310509 RESISTOR.THICK FILM CHIP 0603 1/16W 1MR R65
63 5136006800 RESISTOR THICK FILM CHIP430R 0.22R 1/4W 0805 R72
64 5134315309 RESISTOR.THICK FILM CHIP 0603 1/16W 15K R73
65 5134120209 RESISTOR.THICK FILM CHIP 0603 1/16W 2K 1% R76
66 5134127029 RESISTOR.THICK FILM CHIP 0603 1/16W 27K 1% R77
67 5134327209 RESISTOR.THICK FILM CHIP 0603 1/16W 2.7K R78
68 5136004622 RESISTOR THICK FILM CHIP430R 1W 2512 R79
69 5134375209 RESISTOR.THICK FILM CHIP 0603 1/16W 7.5K R80
70 5134110009 RESISTOR.THICK FILM CHIP 0603 1/16W 100R 1% R81
71 5134162009 RESISTOR.THICK FILM CHIP 0603 1/16W 620R 1% R83
72 5134112519 RESISTOR.THICK FILM CHIP 0603 1/16W 1.25K 1% R84
73 5134118099 RESISTOR.THICK FILM CHIP 0603 1/16W 18 1% R85
74 6647024302 W78E65P-40 PLCC 44PIN WINBOND U1
75 E-IC-0401-2892 6647026357 IC MEMORY EEPROM 24LC16 U2
76 E-IC-0401-2893 6647051834 S524C20D11/BR24C02F-WE2/AT24C02 U4
77 E-IC-0401-2894 6647053550 SCALLOR MASCOT V II U5
78 E-Q-0402-1622 6644009053 IC MOSFET P-CH SI4435DY-T1-A 30V 8A SD-8 U7
79 E-IC-0401-2407 6646021651 IC DIGITAL PFM RT34063A U8
80 E-IC-0401-2569 6646010808 IC ANALOG DUAL4-CH BUFFER 74HCT4052 U9
81 E-R-0405-6578 5162161020 RESISTOR VR 1K 0.1W VR1
82 E-X-0415-0135 6699114210 CRYSTAL 20PPM 20PF 12MHZ HC-49U/S QE Y1,Y2
83 E-D-0403-2072 6615009858 ZENER DIODE MMSZ5232B ZD1,ZD2,ZD3,ZD4
!!ViewSonic Corporation 30 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Location Q'ty1 C-FP-0301-0401 5733715802 3C06 1
2 M-CV-0830-2473 5733715902 3C07A 1
3 C-BC-0302-0535 5733715702 3C01 1
4 M-MS-0808-8273 5731274500 3C14 1
5 M-MS-0808-8278 5731708100 2B01 1
6 M-MS-0808-8279 5731708200 2B02 1
7 M-MS-0808-8275 5731433800 3C02 1
8 PL-PS-0715-0209 5733716002 2B05 1
9 M-MS-0808-8277 5731593000 3C13 1
10 PL-FK-0709-0132 5733636902 3C07B 1
11 M-MS-0808-8284 5733716200 3C07C 1
12 M-MS-0808-8276 5731433901 3C05 1
13 M-MS-0808-8285 5736138100 3C15 1
14 M-CV-0830-2474 5733716102 2B08 1
15 M-MS-0808-8891 5733576902 2B07 1
16 M-MS-0808-8272 5731274401 2B03 1
17 M-MS-0808-8271 5731274301 2B04 1
18 PL-PD-0714-0072 5736138200 2B04C 1
19 PL-PD-0714-0073 5736138300 2B04D 1
20 PL-PD-0714-0074 5736138400 2B04E 1
21 M-MS-0808-8890 5733576802 2B06 1
22 M-MS-0808-8889 5733422902 2B09 1
23 M-MS-0808-8280 5733422700 3C09 1
24 M-MS-0808-8281 5733422800 3C08 1
25 A-AD-0114-0193 5061369420 ADAPT 1
26 M-MS-0808-8287 5784011204 CON1W 1
27 M-MS-0808-8288 5784011205 CON3W 1
28 A-CD-VG500-2 5030043002 Y001 1
29 A-PC-0106-0169 5056705900 P001 1
30 A-PC-0106-0170 5056705939 P002 1
31 M-MS-0808-8286 5784010501 CON7W 1
32 M-WR-0828-0656 5057900521 CON8W 1
33 A-AU-0120-0035 5784010102 AUDIO 1
34 A-VC-0101-0272 5784011503 15P1 1
35 P-BX-0601-0878 9513340156 1P01 1
36 P-FM-0602-0608 9522880157 1P02 1
37 P-FM-0602-0609 9522880257 1P03 1
38 5051253615 PANEL 1
39 M-FC-0809-0080 5784610007 FFC1 1
40 E-SK-0412-0076 5055123300 SPK-L 1
41 E-SK-0412-0077 5055123301 SPK-R 1
KEY-CONTROL PCB
PWB-0536
42 E-D-0403-2127 6618018154 LED1 1
43 M-SW-0815-0187 5054512951 S101-S108 8
44 57825100021 CN101 1
45 5782510271 CN102,CN103 2
46 5782511011 CN104 1CONNECTOR 1X12P P=1.5MM
VG500-2 BOM LIST CABINET & KEY-CONTROL PCB
TACT SW. DC12V50MA
CONNECTOR 1X5P P=2.0MM-L
CONNECTOR S2B-2R-2P
SHIELD Plate
Hinge (R)
Hinge (L)
Mounting Bracket
Base
Code keeper
Button (Function key)
INDICATE (LED Lens)
Kensington Security Slot
Mount Rubber
Hinge Cover
Neck2 (Back)
Neck Plate
Base Plate
Foot Rubber 1
Foot Rubber 2
Foot Rubber 3
Neck 1 (Front)
View Sonic Logo
Bird Logo
Name Plate
ADAPTER PA-1400-02TTD 12V(LITEON)
Key Pad Wire 12PIN
DIODE LED L-319YGFW-DP1.0
Key Pad Wire 5PIN
User's Guide(CD-ROM)
Power Cord (UL)SVT#18X3C 1.8M BLK
Power Cord (VDE)H05VV-F 1.8M BLK
Key TO DC-AMP Wire
Inverter Wire
AUDIO Cable
VGA Cable
Carton box
EPS -Top
EPS-Bottom
SPEAKER(R) 10 OHM 2.5W
SPEAKER(L) 10 OHM 2.5W
CPT Panel CLAA150XG02
UL2896 L=39mm k-50 p=0.5
F/C
F/C2 (Speaker cover)
Back Cover
Description
!!ViewSonic Corporation 31 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Description Location
1 5782510001 CONNECTOR S5B-PH-K CN701,CN830
C703,C704,C714,C812,C830,
C831,C833
3 5214020202 CAPACITOR ELECTROLYTIC MVY 470uF/16V C801,C705
4 5218007891 CAPACITOR ELECTROLYTIC MVY 10uF/16V C708,C706
5 5250810591 CAPACITOR ELECTROLYTIC MVY 1uF/50V C710,C711,C804
6 5030610291 CAPACITOR MONOLITHIC SMD REEL 1000pF 25v 0603 C715,C716
7 5218002891 CAPACITOR ELECTROLYTIC MVY 100uF/25V C707,C802,C803,C805
8 5230610391 CAPACITOR MONOLITHIC SMD REEL 10nf 25v 0603 C806
9 5230017491 CAPACITOR MONOLITHIC SMD REEL 3.3nF 25v 0603 C807
10 5240618191 CAPACITOR MONOLITHIC SMD REEL 180pF 25v 0603 C808
11 5230011191 CAPACITOR ELECTROLYTIC MVY 1uF/16V C809
12 5216017602 CAPACITOR ELECTROLYTIC MVY 220uF/10V C811,C810
13 5216017602 CAPACITOR ELECTROLYTIC MVY 220uF/16V C832
14 5218006291 CAPACITOR ELECTROLYTIC MVY 33uF/10V C834
15 5230610391 CAPACITOR MONOLITHIC SMD REEL 10nf 25v 0603 C835
16 E-D-0403-2091 6611070452 DIODE RECTIFIER SBD 2A/40V D801
17 E-FS-0410-0099 5054440003 FUSE BRICK 4A/125V F801
18 5782511011 CONNECTOR T-B12B_ZR JP2
19 5782710361 CONNECTOR PHONE JACK 5P DIP 3.5MM R/A GREEN J701
20 5056300708 DC POWER JACK LD-0202H-2.5 J800
21 5062141600 COIL CHOKE SMD 10UH 600KHZ L704
22 E-Q-0402-1561 5062130208 COIL CHOKE 2CB160808A800 L703,L702
23 5062142300 COIL CHOKE CHK-423 L801,L830
24 E-R-0405-7078 5062142200 COIL CHOKE CHK-422 L802
25 6621039854 TR NPN HF DTC114TKA/KSR1110 Q702,Q703,Q831
26 5134327409 RESISTOR.THICK FILM CHIP 0603 1/16W 270K R702
27 5134347209 RESISTOR.THICK FILM CHIP 0603 1/16W 4.7K R703,R704
R700,R705,R715,R803
R830.R831
29 5134300009 RESISTOR.THICK FILM CHIP 0603 1/16W 0R R706,R717,R804,R805,R834
30 5134310409 RESISTOR.THICK FILM CHIP 0603 1/16W 100K R705,R718
31 5134322309 RESISTOR.THICK FILM CHIP 0603 1/16W 22K R707
32 5134362209 RESISTOR.THICK FILM CHIP 0603 1/16W 6.2K R708,R709
33 5134310209 RESISTOR.THICK FILM CHIP 0603 1/16W 1K 1% R710,R711,R832
34 5134141039 RESISTOR.THICK FILM CHIP 0603 1/16W 410K 1% R801
35 5134139029 RESISTOR.THICK FILM CHIP 0603 1/16W 39K 1% R802
36 5134322209 RESISTOR.THICK FILM CHIP 0603 1/16W 2.2K R833
37 E-IC-0401-2568 6644005851 IC AUDIO POWER AN7522 U701
38 6640010250 IC VOLTAGE REGULATOR MP1410ES U801
39 E-D-0403-2047 6613003059 DIODE SMD SWITCHING 1N4148 D701
VG500-2 BOM LIST - POWER & AUDIO ASSEMBLY
2
5230005491 CAPACITOR MONOLITHIC SMD REEL 0.1U 25v 0603
28
5134310309 RESISTOR.THICK FILM CHIP 0603 1/16W 10K
!!ViewSonic Corporation 32 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Description Location
1 5130004291 CAPACITOR MONOLITHIC SMD REEL 4.7 C003,C0142 5230014191 CAPACITOR MONOLITHIC SMD REEL 2.2 C004,C0113 5240003591 CAPACITOR MONOLITHIC SMD REEL 18P 3KV 1808 C005,C017
4 5230017391 CAPACITOR MONOLITHIC SMD REEL 22000P 50V 0603 C006,C018
5 5240002791 CAPACITOR MONOLITHIC SMD REEL 220P 50V 0603 C007
6 5230013091 CAPACITOR MONOLITHIC SMD REEL 0.01U 25V 0603 C008
7 5230014091 CAPACITOR MONOLITHIC SMD REEL 0.68UF 10V 0805 C009
8 5230013391 CAPACITOR MONOLITHIC SMD REEL 0.47UF 10V 0805 C010
9 5230013291 CAPACITOR MONOLITHIC SMD REEL 6800P 50V 0603 C013
10 5230013191 CAPACITOR MONOLITHIC SMD REEL 15000P 25V 0603 C019
11 5230615291 CAPACITOR CERAMIC CK45 1500P 50V C020
12 5230001691 CAPACITOR MONOLITHIC SMD REEL 47000P 16V 0603 C021,C027
13 5230017491 CAPACITOR MONOLITHIC SMD REEL 3300P 50V 0603 C055,C056
14 E-D-0403-2072 6615009858 DIODE ZENER MMSZ5232B D001,D006,D008
15 6613003753 DIODE SMD SWITCHING D003,D004,D009,D010,D03616 E-D-0403-2126 6613000554 DIODE SWITCHING BAV99 75V 0.15A D020,D021,D022,D023
17 E-FS-0410-0112 5054430090 FUSE SMD 63V/3A F001
18 E-IC-0401-2520 6646000650 IC DIGITAL OZ960S I001
19 E-IC-0401-2889 6645010202 IC DIGITAL MOS TPC-8401 I002,I003
20 5062128356 COIL CHOKE YC54T 4R7M L001
21 5056900313 BASE & PIN S5B-PH-SM3-TB P001
22 5056415282 BASE & PIN SM02 (8.0) B-BNS-1-TB P002,P003
23 E-Q-0402-1180 6622002257 TR NPN SMD MMBT3904 Q001
24 E-Q-0402-1621 6626004652 TR FET TMOS 2N7002LT Q003,Q004,Q005,Q006
25 5134114039 RESISTOR.THICK FILM CHIP 0603 1/16W 140K 1% R001
26 5132310109 RESISTOR.THICK FILM CHIP 0805 1/10W 100R R002
27 5134110039 RESISTOR.THICK FILM CHIP 0603 1/16W 100K 1% R003,R015
28 5134136029 RESISTOR.THICK FILM CHIP 0603 1/16W 36K 1% R004
29 5134110029 RESISTOR.THICK FILM CHIP 0603 1/16W 10K 1% R005,R013,R014,R016,R031
30 5132322009 RESISTOR.THICK FILM CHIP 0805 1/10W 22R R006,R018,R022
31 5134151019 RESISTOR.THICK FILM CHIP 0603 1/16W 5.1K 1% R007
32 5134168009 RESISTOR.THICK FILM CHIP 0603 1/16W 680R 1% R008,R009
33 5134140299 RESISTOR.THICK FILM CHIP 0603 1/16W 402R 1% R010,R017
34 E-R-0405-7073 5134156029 RESISTOR.THICK FILM CHIP 0603 1/16W 56K 1% R011
35 5134139039 RESISTOR.THICK FILM CHIP 0603 1/16W 390K 1% R012
36 5134127029 RESISTOR.THICK FILM CHIP 0603 1/16W 27K 1% R019
37 5134310509 RESISTOR.THICK FILM CHIP 0603 1/16W 1M R020,R021,R027
38 5134351409 RESISTOR.THICK FILM CHIP 0603 1/16W 510K R024
39 5134300009 RESISTOR.THICK FILM CHIP 0603 1/16W 0R R025
40 5134151029 RESISTOR.THICK FILM CHIP 0603 1/16W 51K 1% R029
41 E-T-0408-0513 5061376800 POWER TRANSFORMER CD-T-1032-575T SMD T001,T002
VG500-2 BOM LIST PCB INVERTER ASSEMBLY
!!ViewSonic Corporation 33 Confidential Do Not Copy VG500-2
51
52
53
!!ViewSonic Corporation 34 Confidential Do Not Copy VG500-2
8. Exploded Diagram And Spare Parts List
Item ViewSonic P/N Ref. P/N Designation Remark(Ckt/Name) Qty1 B-MB-0201-0787 5097616700 Main PCB Assembly PWB-0535 1
2 B-MB-0221-0560 5097617100 Inverter PCB Asseembly PWB-0538 1
3 B-AC-0215-0044 5097616900 Power&AudioPCB Assembly PWB-0537 1
4 B-KB-0207-0041 5097616800 Key Board Aeeembly PWB-0536 1
5 M-MS-0808-8287 5784011204 Wire Ass'y Key Pad L=180mm CON1W 1
6 M-MS-0808-8288 5784011205 Wire Ass'y W/12/12P L=30mm CON3W 1
7 M-MS-0808-8286 5784010501 Wire Ass'y W/5/5P L=170mm CON7W 1
8 5097900521 Wire Ass'y W/5/5P L=90mm CON8W 1
M-FC-0809-0080 5784610007 FFC CABLE(RA) FFC1 2
5057450019 FFC CABLE(RB) FFC1 2
10 C-FP-0301-0401 5733715802 F/C 3C06 1
11 M-MS-0808-8280 5733422700 Bird Logo 3C09 1
M-LCD-0826-0169 5051253608 LCD Panel (RA) TAIWAN
M-LCD-0826-0174 5051253615 LCD Panel (RB) CHINA
13 M-MS-0808-8892 5731274200 LCD Chassis 3C03 1
14 M-MS-0808-8993 5731433700 Interface Shield 3C04 1
15 M-MS-0808-8275 5731433800 Mounting Bracket 3C02 1
16 C-BC-0302-0535 5733715702 Back Cover 3C01 1
17 M-MS-0808-8277 5731593000 Codekeeper 3C13 3
18 M-MS-0808-8281 5733422800 Name Plate 3C08 1
19 M-CV-0830-2473 5733715902 F/C2 (Speaker Cover) 3C07A 1
20 PL-FK-0709-0132 5733636902 Button 3C07B 1
21 M-MS-0808-8284 5733716200 Indicate (LED Lens) 3C07C 1
22 E-SK-0412-0078 5055123300(1) Speaker Ass Y -L , -R SPEAKER 2
23 M-MS-0808-8276 5731433900 KENSHING TON 3C05 1
24 M-MS-0808-8279 5731708200 HINGE L 2B02 1
25 M-MS-0808-8278 5731708100 HINGE R 2B01 1
26 M-MS-0808-8285 5736138100 Mount Rubber 3C15 4
27 M-CV-0830-2474 5733716102 Hinge Cover 2B08 1
28 M-MS-0808-8889 5733422902 View Sonic Logo 3C08 1
29 M-MS-0808-8891 5733576902 Neck 2 2B07 1
30 M-MS-0808-8272 5731274400 Neck Plate 2B03 1
31 M-MS-0808-8271 5731274300 Base Plate 2B04 1
32 PL-PD-0714-0073 5736138300 Foot Rubber 2 2B04D 1
33 PL-PD-0714-0072 5736138200 Foot Rubber 1 2B04C 1
34 M-MS-0808-8890 5733576802 Neck 1 2B06 1
35 PL-PS-0715-0209 5733716002 BASE 2B05 1
36 PL-PD-0714-0074 5736138400 Foot Rubber 3 2B04E 1
37 M-MS-0808-8273 5731274500 SHIELD PLATE 3C14 2
38 M-MS-0808-8894 5736214632 GASKET(V3) 45X10X7 1
39 M-MS-0808-8895 5736214630 GASKET(V1) 10X7X2 2
40 M-MS-0808-8896 5736214633 GASKET(V4) 65X10X7 1
41 M-LB-0813-0872 5736214654 CU FOIL LABEL 130X56X0.05 1
42 M-MS-0808-8897 5736214631 GASKET(V2) 296X7X2 1
43 M-MS-0808-8898 5736214634 GASKET(V5) 80X7X2 1
44 M-MS-0808-8899 5736214635 GASKET(V6) 10X10X7 1
45 M-MS-0808-8900 5642026500 CUDHION RUBBER 6B52L 2
46 P-FM-0602-0816 5736214013 CUDHION(A) 501X3.5X0.6 2
47 P-FM-0602-0817 5736214014 CUDHION(B) 25X5X0.6 4
S-1 M-SCW-0824-6723 7001260616 SCREW MACHINE PAN HEAD M4X6 S-PC Hinge l/ r 4
112 PANEL
VG500-2 Exploded Parts List
9
EXPLODED PARTS LIST
!!ViewSonic Corporation 35 Confidential Do Not Copy VG500-2
Item ViewSonic P/N Ref. P/N Designation Remark(Ckt/Name) QtyS-2 M-SCW-0824-6724 7190571011 SCREW HEX HEAD M3x6 S-NI Panel 4
S-2 M-SCW-0824-6724 7190571011 SCREW HEX HEAD M3x6 S-NI Panel 4
S-2 M-SCW-0824-6724 7190571011 SCREW HEX HEAD M3x6 S-NI IF board 4
S-2 M-SCW-0824-6724 7190571011 SCREW HEX HEAD M3x6 S-NI Audio board 2
S-3 M-SCW-0824-6725 7001170612 SCREW ISO PP M3x6 S-ZN-CC Audio board 2
S-3 M-SCW-0824-6725 7001170612 SCREW ISO PP M3x6 S-ZN-CC Inverter board 3
S-4 M-SCW-0824-6726 7132160651 TS PAN CLR S-TITE M3x6 S-ZN Key board 2
S-4 M-SCW-0824-6726 7132160651 TS PAN CLR S-TITE M3x6 S-ZN Interface shield 7
S-5 M-SCW-0824-6727 7134161186 SCREW PZP M3x8 P TYPE S-PC Key board 3
S-5 M-SCW-0824-6727 7134161186 SCREW PZP M3x8 P TYPE S-PC Neck plate 4
S-5 M-SCW-0824-6727 7134161186 SCREW PZP M3x8 P TYPE S-PC b/c + chassis 4
S-5 M-SCW-0824-6727 7134161186 SCREW PZP M3x8 P TYPE S-PC fc+b/c 2
S-6 M-SCW-0824-6728 7004261116 SCREW ISO MACHINE FLAT HEAD M4X8L Base plate 7
S-6 M-SCW-0824-6728 7004261616 SCREW ISO MACHINE FLAT HEAD
M4X12L
Hinge l 4
S-6 M-SCW-0824-6728 7004261616 SCREW ISO MACHINE FLAT HEAD
M4X12L
Hinge r 4
S-6 M-SCW-0824-6728 7004261116 SCREW ISO MACHINE FLAT HEAD M4X8L Mounting bracket 6
S-7 M-SCW-0824-6730 7131160252 SCREW PRWS M3x4 S-TITE S-ZN-CC ffc plate 3
S-8 M-SCW-0824-6731 7132161456 TS PAN CLR S-TITE M3x10 S-ZN b/c + chassis 1
S-9 M-SCW-0824-6732 7034160656 SCREW TAPPING FLAT HEAD-2 M3X6 S-
ZN-CC
Base plate 4
!!ViewSonic Corporation 36 Confidential Do Not Copy VG500-2
Disassembly Of Rear Cover
1. Unscrew nine screws of Base Plate and remove.
2. Remove key control cover from LCD Monitor Chassis
!!ViewSonic Corporation 37 Confidential Do Not Copy VG500-2
3. Unscrew two screws and remove front cover.
4. Unscrew seven screws to separate LCD panel assembly from rear cover,
and disconnect two connectors to remove key control Board.
!!ViewSonic Corporation 38 Confidential Do Not Copy VG500-2
Disassembly of Inverter Board, Main Board and Power&Audio Board
!!ViewSonic Corporation 39 Confidential Do Not Copy VG500-2
1. Unscrew eight screws that secure shielding plate and remove.
2. Unscrew four screws that secure Power & Audio Board and
disconnect three connectors to remove.
!!ViewSonic Corporation 40 Confidential Do Not Copy VG500-2
3. Unscrew three screws that secure Inverter Board and disconnect three
connectors to remove.
4. Unscrew four screws that secure Main Board and disconnect four connectors to remove.
5V
5V
5VCON4
PC 5V
Mute
Volume con.
SW Select Control
Power
MP1410
DC-DC
Control
5V
VEEG
VDDG
VCOM
VDDA
R/L
MRT MV2
(T-CON)
NVRAM
AT24WC1
Key
Audio
AN7522
InverteIC MCU M8064
DDC IC
AT24C02N
J701
Audio
Input
15PIN-Control
5V
SWITCH
74HC4D52D
12V DC
U701
U001
U004
IIC BUS
U009IIC
BUS
LCD PANEL
U801
Back Light
Column Drive
Row Drive
Back Light
Power
R/G/B
H/V SYNC
U002
CCFL-EN
Brightness control
12V 12Vdc Form Adaptor
RT9164
CG
RT34063A
RT916A32
CG
12V DC
Q009
I3
PPWR0Q010
VDDA 9.2V
C151
5V DC
Q006
Q008 PPWRO
L014
U008 PPWR1 Q007
D004 Q004
VR001
1K 0.1W
I4
C142
D005
C145
VDDG 18VDC
VEEG -6V
VCOM 3.45V
R084
L012
L015
H V PPWR0 PPWR1
OK OK 1 1
NO OK 0 0
OK NO 0 0
NO NO 0 0
!!ViewSonic Corporation 41 Confidential Do Not Copy VG500-2
9. Block Diagram
55
4
4
3
3
2
2
1
1
D D
C C
B B
A A
2.0 mm
I_PORT
510mA
TO-263
KEYBOARD
E91001
2.0 MCU
B
Friday, July 25, 2003
Title
Size Document Number Rev
Date: Sheet
RESET
TXDRxD
SCLSDA
STDBYVOLUME
SENSOR
MUTE+
RxDTxD
BRIGHTNESS
SCL
CCFL_EN
RESET
GRNMUTE+
STDBYSENSOR
WPSCLSDA
GRNAMBER
MUTE
LED_GRNLED_AMB
MENUSP+
SP+
MUTE
UP
POWER
SEL
UP
MENU
AMBER
LED_GRNLED_AMB
SDA
WP
SELPOWER
SP-
DOWN
SP-
DOWN
+5V
+12V
+3.3V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V+5V
C60.1uF
R19
0/NC
C50.1uF
RP164.7K*4
1
8
2
7
3
6
4
5
U2
24LC16
8 12345
67
VCC A2A1A0
GNDSDASCLWP
R3 100R/NC
R9 1K
R8 1K
R13
10K
R2
510R
R1
510R
RP3
4.7K*4
1
8
2
7
3
6
4
5
RP2
4.7K*4
1
8
2
7
3
6
4
5
C13
0.1uF
C14
0.1uF
R52
150R/NC
D11N4148
1
2
R50 150R
R16 100R
R6 1K/NCR7 1K/NC
R14 100R
R10 10K
R12 4.7K/NCR11 4.7K
CON1
T-S12BZR
123456789101112
R17
100K
Q1
3904
C9
0.1uF
Q2
3904
C7
0.1uF
C10
0.1uF
C8
0.1uF
C11
0.1uF
C2
0.1uF
Y1
12MHZ
R15 100R
C17
0.1uFC16
470uF/16V
CON3
T-B12B-ZR
123456789
101112 C18
220uF/16V
Q33906
3
1
2
I1
RC1117M-3.3
1
3 2
4
G
N
D
VIN VOUT
TAB
R20
10K
C155
NC
R4
4.7K
CON2
6 PIN WAFER
123456
R5
4.7K
R18
5.1K
C4 22pF
U1
8051PLCC
35
21
20
10
14151617
23456789
4342414039383736
2425262728293031
191832331311
4
4
2
2
2
3
3
4
11
2
EA/VP
X1
X2
RESET
INT0 / P3.2INT1 / P3.3T0 / P3.4T1 / P3.5
P1.0 / T2P1.1 / T2EXP1.2P1.3P1.4P1.5P1.6P1.7
AD0 / P0.0AD1 / P0.1AD2 / P0.2AD3 / P0.3AD4 / P0.4AD5 / P0.5AD6 / P0.6AD7 / P0.7
A8 / P2.0A9 / P2.1
A10 / P2.2A11 / P2.3A12 / P2.4A13 / P2.5A14 / P2.6A15 / P2.7
P3.7/ RDP3.6 / WR
PSENALE
P3.1 / TXDP3.0 / RXD
V
C
C
V
S
S
P
4
.
0
P
4
.
1
I
N
T
3
/
P
4
.
2
I
N
T
2
/
P
4
.
3
C12
0.1uF
C3 22pF
C1
100uF/ 16V
C151uF/0805
VOLUME 4
12M4
IRQ-4
TXD 3RXD 3
BRIGHTNESS 4CCFL_EN 4
SELFTEST3
VDDD_EN6PNLVCC_EN6
VDDG_EN6
RESET_MVII4
SCL4SDA4
!!!ViewSonic Corporation 42 Confidential Do Not Copy VG500-2
10. Schematic Diagrams
55
4
4
3
3
2
2
1
1
D D
C C
B B
A A
74LVC14 +3.3V
NC NC NC NC NC NC
E91001
3.0 Analog Input
B
Friday, July 25, 2003
Title
Size Document Number Rev
Date: Sheet
BLUE
BLUE+
HSYNC
RED
VGA_VSYNC
GREEN+
RED+
VSYNC
VGA_HSYNC
DDC_SCL
GREEN
DDC_SDA
+5V
+5V
+3.3V
+5V
C31
NC
U10 SCREW3.5
1 2 3 4 5 6 7 8 9
C32
10pF
M5B
1
R88 0
L20 MLB-160808-0030A
R35 NC
L18 MLB-160808-120A
R30 100R
U9 SCREW3.5
1 2 3 4 5 6 7 8 9
R33 NC
M1A
1
U13
1
U3D
NC
9 8
R37
4.7K
U3F
NC
13 12
R26 150R
C33
0.1uF
M1B
1
M5A
1
U11 SCREW3.5
1 2 3 4 5 6 7 8 9
DN1BAV99
1
3
2
R23 150R
U141
R31 100R
C21 0.1uF
C27
10pF
U3A
NC
1 2
C24
10pF
C20
10pF
C29
NC
C30
NC
U009
74HC4052D
9
6
121415
11152
4
13
3
1
6
7
8
10
S1
E
1Y01Y11Y2
1Y32Y02Y12Y2
2Y3
1Z
2Z
V
C
C
V
E
EGND
S0
CON4
1216-064-15S-AAC
162738495
11
12
13
14
1510
1
6
1
7
R29 150R
C23 NC
U12 SCREW3.5
1 2 3 4 5 6 7 8 9
C28 0.1uF
C25 0.1uF
C22 0.1uF
C19 0.1uF
R41 100R
ZD4
MMSZ5232B
ZD3
MMSZ5232B
D2
SR24
U3E
NC
11 10
U4S524C20D11/BR24C02F-WE2/AT24C02
8
4
123
765
VCC
GND
A0A1A2
WPSCLSDA
C34
100pF
R36
4.7K
D3
SR24
U3B
NC
3 4
L19 MLB-160808-120A
C156
NC
ZD2
MMSZ5232B
L17 MLB-160808-120A
DN3BAV99
1
3
2
R21 NC
DN2BAV99
1
3
2
ZD1
MMSZ5232B
R39 100R
C26 0.1uF
L21 MLB-160808-0030A
C35
100pF
L1
MLB-160808-0030A
L2
MLB-160808-0030A
R28
75R 1%
R25
75R 1%
R22
75R 1%
L3
MLB-160808-0030A
U3C
NC
5 6
BLUE+ 4
GREEN+ 4
RED+ 4
HSYNC 4
VSYNC 4
BLUE- 4
SOG 4
GREEN- 4
RED- 4
SELFTEST2
TXD2
RXD2
!!ViewSonic Corporation Confidential Do Not Copy VG500-243
55
4
4
3
3
2
2
1
1
D D
C C
B B
A A
2.5V
USEIC:R58=R59=NC;P2781A: R68=R69=NC ; R64=R67=0; R66=510 ; C74=0.1uF ; C75=560pF;P2027A: R64=R66=R67=R68=NC;
C74=C75=NC ; R69=0;
3mA/5mA
120mA/200mA
10mA/20mA
THIS POWER PART NEAR MV2
SOT-223
EVEN & ODD R[7:0] swap to R[0:7] G[7:0] swap to G[0:7] B[7:0] swap to B[0:7]
4.0 MV2
Friday, July 25, 2003
Title
Size Document Number Rev
Date: Sheet
VREF
CPH2 CLKH-
G
B
0
EG3
BA3
EB1
RA3
RA1
ER0
ER3
OG4
ER7
OG5
BA2
EB0
ER2
BA5
EB7
GB5
ER5
GA3
EB2
RB0
GB0
ER1
BA4
EG7
OG6
BB5
EG2
GA0
RA5
EG6
OR6
ER4
BB6
R
B
6
EB3
RB1
RA0
BB1
GA5
OB4
BB7
BB4
OG7
G
B
6
EG1
OR0OR1
GA4
EG5
OB7
OR7
OG0
BB0OB6
G
B
1
RB5
ER6
OR4
G
B
7
G
B
3
R
B
1
GB7
RB4
EG0
EG4
R
B
5
OB5
GB4
R
B
7
G
B
5
R
B
4
BA0
GB1
BB2
OR5
BB3
EB4
RB6
R
B
0
G
B
4
OG2
EB6
GB6
G
B
2
GB3
EB5
RA2
GB2
RB7
BA1
RA4
RA7RA6
OB2
OG1
OB3
GA6
BA6
OR2
OB0
BA7
OR3
GA7
OB1
OG3
R
B
3
RB3
R
B
2
RB2
GA1GA2
+3.3VGND
CLKH
PLL-VDD
3.3V-ANA
3.3V-PLL
3.3V-ANA
3.3V-ANA
3.3V-ANA
PLL-VDD
3.3V-PLL
+3.3V
+5V
+3.3V+3.3V
+3.3V
C70
0.1uF
R580
R53 150R
R62 22R
C55
10nFU6
P2781A/P2027A/NC
1234 5
678XIN
XOUTFS1/MRALF/VSS VSS/SSON
MODOUTFS0/SR0
VDD
L9
120 BEAD
R64 0/NC
R49 1K
C73
0.1uF
C50
47pF
C72
0.1uF
R86 1K
C53
47pF
C75
560pF/NC
R51 22R
C46
0.1uF
R43 22R
R56
2.2K
R42 22R
R590
C390.1uF
R45 22R/NC
C420.1uF
C74
0.1uF/NC
C58
4.7nF
C48
0.1uF
C40100uF/16V
C7922pF
C57
4.7nF
C60
0.1uF
I2LT1117CST-3.3
1
234
G
N
D VOUTVINTAB
L6
221A
C47
10uF/16V
C4122uF/16V
L8
221A
CP1
150pF
C56
10nF
L7
221A
CZ1
15nF
T1
T5
RP15
68R*4
1 82 73 64 5
T4
RP9
68R*4
1 82 73 64 5
R48 10K
RP6
68R*4
1 82 73 64 5
C51
47pF
RP12
68R*4
1 82 73 64 5
R69
NC
R47 1K
C61
0.1uF
T9
C65
0.1uF
C54
4.7nF
C66
0.1uF
RP10
68R*4
1 82 73 64 5
C64
0.1uF
RP13
68R*4
1 82 73 64 5
C63
0.1uF
RP8
68R*4
1 82 73 64 5
R68
NC
RP7
68R*4
1 82 73 64 5
C67
0.1uF
RP11
68R*4
1 82 73 64 5
C59 0.1uF
RP5
68R*4
1 82 73 64 5
R46 10K
RP14
68R*4
1 82 73 64 5
R60 120R BEAD CORET6
C68
0.1uF
T8
C69
0.1uF
C52
NC
C62
0.1uF
T7
R87 22R/NC
C77
10uF
U5
MASCOT V II
123456789
101112131415
171819202122232425262728293031323334353637383940
4
1
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9
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0
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0
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7
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8
0
12011911811711611511411311211111010910810710610510410310210110099989796959493929190898887868584838281
1
6
0
1
5
9
1
5
8
1
5
7
1
5
6
1
5
5
1
5
4
1
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3
1
5
2
1
5
1
1
5
0
1
4
9
1
4
8
1
4
7
1
4
6
1
4
5
1
4
4
1
4
3
1
4
2
1
4
1
1
4
0
1
3
9
1
3
8
1
3
7
1
3
6
1
3
5
1
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4
1
3
3
1
3
2
1
3
1
1
3
0
1
2
9
1
2
8
1
2
7
1
2
6
1
2
5
1
2
4
1
2
3
1
2
2
1
2
1
16
CAP_HREFCAP_HCAP_VB0/Y0B1/Y1B2/Y2B3/Y3B4/Y4B5/Y5B6/Y6B7/Y7G0G1G2G3
G5G6G7R0/UV0R1/UV1R2/UV2R3/UV3R4/UV4R5/UV5R6/UV6R7/UV7DVDDDVSSDTESTVGA_VSYNCVGA_HSYNCVCCDDGNDSOGINVCCAAGNDVREFCPCZ
V
C
C
A
B
R
e
s
e
r
v
e
d
B
I
N
+
B
I
N
-
G
N
D
A
B
B
C
L
P
V
T
O
P
V
B
O
T
V
C
C
A
G
R
e
s
e
r
v
e
d
G
I
N
+
G
I
N
-
G
N
D
A
G
G
C
L
P
T
O
U
T
P
T
O
U
T
M
V
C
C
A
R
R
e
s
e
r
v
e
d
R
I
+
R
I
-
G
N
D
A
R
R
C
L
P
A
D
V
D
D
A
D
V
S
S
G
P
I
O
2
/
G
P
I
O
1
/
G
P
I
O
0
/
S
T
H
1
/
S
T
H
8
/
L
P
/
D
C
V
D
D
S
H
C
/
X
T
A
L
X
T
A
L
I
D
I
B
V
S
S
R
L
S
/
P
O
L
/
C
P
H
1
/
I
N
V
1
/
D
C
V
S
S
DOBVSSBLU_OUTB_7BLU_OUTB_6BLU_OUTB_5BLU_OUTB_4
DOBVDDBLU_OUTB_3BLU_OUTB_2BLU_OUTB_1BLU_OUTB_0
DOBVSSRED_OUTA_7RED_OUTA_6RED_OUTA_5RED_OUTA_4
DCVDDRED_OUTA_3RED_OUTA_2RED_OUTA_1RED_OUTA_0
DCVSSGRN_OUTA_7GRN_OUTA_6GRN_OUTA_5GRN_OUTA_4
DOBVDDGRN_OUTA_3GRN_OUTA_2GRN_OUTA_1GRN_OUTA_0
DOBVSSBLU_OUTA_7BLU_OUTA_6BLU_OUTA_5BLU_OUTA_4
DOBVDDBLU_OUTA_3BLU_OUTA_2BLU_OUTA_1BLU_OUTA_0
T
V
C
L
K
I
R
Q
#
S
C
S
#
S
D
A
S
C
L
R
S
T
S
T
V
3
/
S
T
V
1
/
D
C
V
S
S
C
P
V
O
E
3
/
O
E
2
/
O
E
1
C
P
H
2
P
W
M
0
P
W
M
1
D
C
V
D
D
I
N
V
2
/
L
C
D
_
V
D
D
L
C
D
_
V
B
L
D
C
V
S
S
R
E
D
_
O
U
T
B
_
7
R
E
D
_
O
U
T
B
_
6
R
E
D
_
O
U
T
B
_
5
R
E
D
_
O
U
T
B
_
4
D
O
B
V
D
D
R
E
D
_
O
U
T
B
_
3
R
E
D
_
O
U
T
B
_
2
R
E
D
_
O
U
T
B
_
1
R
E
D
_
O
U
T
B
_
0
D
O
B
V
S
S
G
R
N
_
O
U
T
B
_
7
G
R
N
_
O
U
T
B
_
6
G
R
N
_
O
U
T
B
_
5
G
R
N
_
O
U
T
B
_
4
D
O
B
V
D
D
G
R
N
_
O
U
T
B
_
3
G
R
N
_
O
U
T
B
_
2
G
R
N
_
O
U
T
B
_
1
G
R
N
_
O
U
T
B
_
0
G4
R54 150R
T10L10 120R BEAD CORE
T11
DA1
TL431
2
3
1
RP4
68R*4
1 82 73 64 5
C76
0.1uF
C49
47pF
R55 1K
C45
100uF/16V
R67 0/NC
C71
0.1uF R66 510R/NC
C38
100uF/16V
R63 22R
R44 10K
R61 22R
T2
R57 22R
C44
100uF/16V
C36
47pF
C43
100uF/16V
C37
47pF
R65
1M
C7822pF
Y2
12MHZ
EG[0..7] 5
EB[0..7] 5
ER[0..7] 5
OB[0..7] 5
STH1 5
HMS1_O 5
HMS2_E 5
CLKV 5
STV1 5
DHS_LP 5
CCFL_EN 2
OG[0..7] 5
OR[0..7] 5
BLUE+3BLUE-3
GREEN+3GREEN-3
RED+3RED-3
RESET_MVII2
IRQ-2
SCL2
SDA2
12M 2
HSYNC3VSYNC3
SOG3
VDDA_EN6
CLKH- 5EPOL 5
BRIGHTNESS 2
VOLUME 2
!!ViewSonic Corporation Confidential Do Not Copy VG500-244
55
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VDDD=3.3VVCOM=3.45VVDDG=18VVDDA=9.2VVEEG= -6V
CON5 CON6
50 501 1
PCB
O(R,G,B)0..7--> E(R,G,B)0..7-->
E91001
5.0 Panel Interface
B
Friday, July 25, 2003
Title
Size Document Number Rev
Date: Sheet
OR2
OR4
OR6OR5
OR7
OR3
DGNDDGNDCLKH-DGNDDGNDOB7OB6OB5OB4OB3OB2OB1OB0DGNDOG7
OG2OG3OG4OG5OG6
OG1OG0DGNDOR7OR6
OR1OR2OR3OR4OR5
OR0DGNDDGND
DGND
VDDA
DGNDDGNDDGNDEPOLHMS2_E
DGNDDGNDSTH1DHS_LPHMS1_O
VDDA
VDDA
DGNDDGND
VDDGCLKV
VDDD
VCOM
DGNDDGNDEB7EB6EB5EB4EB3EB2EB1EB0DGNDEG7EG6EG5EG4EG3EG2EG1EG0DGNDER7ER6ER5ER4ER3ER2ER1ER0DGNDDGND
VEEG
VDDD
VCOM
VCOM
VCOM
VCOM
STV1VDDD
VDDG
VDDD
VDDD
VDDD
VEEG
VCOM
VDDA
VDDA
VDDA
OR1OR0
OG7
OG5OG6
OG3OG2
OG4
OG1OG0
OB0
OB7
OB2
OB5
OB1
OB3OB4
OB6
ER3
ER6
EG2
EG7
EG4
ER5
EG0
EG6EG5
EG3
ER7
ER0ER1ER2
EG1
ER4
EB1
EB4
EB0
EB7EB6
EB3
EB5
EB2
VDDD
VCOM
VDDA
VDDG
VEEG
C91
56pF
C90
56pF
C89
56pF
C88
56pF
C95
56pF
C94
56pF
C114
56pF
C119
56pF
C117
56pF
C116
56pF
C112
56pF
C115
56pF
C113
56pF
C118
56pF
C96
56pF
C101
56pF
C103
56pF
C97
56pF
C99
56pF
C100
56pF
C98
56pF
C102
56pF
C126
56pF
C121
56pF
C124
56pF
C122
56pF
C127
56pF
C123
56pF
C125
56pF
C120
56pF
C84
56pF
C83
56pF
C82
56pF
C81
56pF
C80
56pF
C87
56pF
C86
56pF
C85
56pF CON5
IL-FHR-50S-HF
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950
CON6
IL-FHR-50S-HF
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950
C105
56pF
C110
56pF
C106
56pF
C111
56pF
C109
56pF
C108
56pF
C104
56pF
C107
56pF
C93
56pF
C92
56pF
OR[0..7]4
OB[0..7]4
CLKH-4
HMS1_O4HMS2_E4
DHS_LP4
EPOL4
STH14
CLKV4STV14
OG[0..7]4
EG[0..7]4
ER[0..7]4
EB[0..7]4
!!ViewSonic Corporation Confidential Do Not Copy VG500-245
55
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VDDA 9.2V/200mA
VEEG -6V/20mA
VDDG 18V/20mA
VCOM 3.45V/200mA
VDDD 3.3V/300mA
1. Q6 and Q9 have three source SI2301DS(VISHAY)/FDN360P(Fairchild)/AO3401(AOS).2. All of Transistor have two source DTC114TKA(ROHM)/KSR1110(Fairchild).3. Q4 have two source SI2303DS(VISHAY)/FDN360P(Fairchild).47uF/25V/16V four source MVY25VC47M(Chemicon)EEVFE1C470P/EEVFC1C470P(Panasonic)UUD1E470M(Nichicon).
220uF/16V two source MVY16VC220M(Chemicon)UUD1C221M(Nichicon).
D7 Zener diode have three source.TZM5234B/TZQ5234B(Vishay)MMSZ5234B(Panjit).
L10 Power chock have two source YC104R*151M(YOUNG)SR1003151MS(ABC).
L11 Power chock have two source YC54*680K(YOUNG)SR0604680KS(ABC).
SOT-223
SOT-223
E91001
6.0 Panel Volt
Custom
Friday, July 25, 2003
Title
Size Document Number Rev
Date: Sheet
PNLVCC_EN
VDDG_EN
VDDA_EN
VDDG_EN
VDDD_EN
VDDA_EN
VDDD_EN
VEEG
VCOM
VDDD
+5V
VDDG
+12V VDDA
+3.3V
+5V
C133
0.1uF
L11
2CB321611A700
D7
TZM5234B/TZQ5234B/MMSZ5234B
D6
SR24
C150
10uF/16V
Q7
DTC114TKA/KSR1110
C130
10uF/16V
U7
4435-SO8
1234
8765
S1S2S3G
D4D3D2D1
Q4SI2303DS/FDN360P
1
32
L13YC54*680K/SR0604680KS
I3RT9164CG
3 2
1
4
I O
G
/
a
d
j
TAB
R85
18R 1%
C149
220uF/16V
R78
2.7K
R83
620R 1%
R81
100R 1%
C129
0.1uF
R70
10K
U8RT34063A
1
2
3
45
6
7
8 SC
SE
TC
GNDFB
VCC
IS
BST
C132
47uF/25V
Q6
SI2301DS/FDN360P/AO3401
1
32
R84
1.25K
R72
0.22R 1/4W
R74
2.2K
+C128
100uF/16V
C134
0.1uF
C148
10uF/16V
C138
10uF/16V
C147
10uF/16V
C143
47uF/16V
C145
0.1uF
C140
220uF/16V
C151
0.1uF
C137
10uF/16V
C136
0.1uF
C142
22uF/25V
D4SR24
L12SS1003151MS/YC104R*151M
R75
10K
C139330pF
VR11K 0.1W
1
3
2
L15
2CB321611A700
C131
47uF/25V
C154
0.1uF
R79430R 1W
Q5DTC114TKA/KSR1110
C146
0.1uF
R71
150R
R80
7.5K I4RT9161A33CG
2 3
1
4
I O
G
TAB
Q9
SI2301DS/FDN360P/AO34011
32
R73
15K
Q8
DTC114TKA/KSR1110
R76
2K 1%
C135
120pF
C141
0.1uFR77 27K 1%
R82
2.2K
C152
10uF/16V
C153
220uF/16VQ10
DTC114TKA/KSR1110
C144
47uF/16V
L14YC54*680K/SR0604680KS
D5
SR24VDDG_EN2
PNLVCC_EN2
VDDD_EN2
VDDA_EN4
!!ViewSonic Corporation Confidential Do Not Copy VG500-246
AA
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
AMBER
GREEN
POWER
SELECTDOWN UPMENUSP+SP-MUTE
R_GND
L_GND
R CH
L CH
JST ZHR-2(HOUSING)
VIEWSONIC KEY PAD BOARD
Monday, April 07, 2003
E91001
Title
Size Document Number Rev
Date: Sheet
menu
sel
down
power
upsp+sp-m
ute
L_IN
R_IN
greenam
ber
GND
GNDGND
GND
GND
CN101
T-S5BPH-K
12345
S102
SKHHPL2420-TT
1
2 3
41
2 3
4
CN103
T-S2B-ZR
12
CN104T-B12B_ZR
1234567891
0
1
1
1
2
S105
SKHHPL2420-TT
1
2 3
41
2 3
4
S103
SKHHPL2420-TT
1
2 3
41
2 3
4
S106
SKHHPL2420-TT
1
2 3
41
2 3
4
S107
SKHHPL2420-TT
1
2 3
41
2 3
4
S101
SKHHPL2420-TT
1
2 3
41
2 3
4
S108
SKHHPL2420-TT
1
2 3
41
2 3
4
CN102
T-S2B_ZR
12
S104
SKHHPL2420-TT
1
2 3
41
2 3
4
LED1
CSL-F300YG2CT
13
2
a
1
a
2
c
!!ViewSonic Corporation Confidential Do Not Copy VG500-247
AA
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
Inverter
12V
BRT
HI OFF
HI Half of lightest
To Inverter.
BRT
Lo Lightest
CCFL_EN
LOON
GND_S1
E91001
2.0 POWER
A3
Monday, April 07, 2003
Title
Size Document Number Rev
Date: Sheet
SENSOR
CCFL_EN
STDBYVolume
12V
+5V
+12V +5V
+5V
GND GND
GND GND GND
GND
GND
GND GND
GND GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
+12V
GND
C831
0.1uF
C832
220uF/16V
L802 CHK-422
C801
470uF/16V
R831
10K
R830
10K
C806
10nF/25VC811
220uF/16V
R801
410K
Q830
DTC114TKA/KSR1110
C834
33uF/10V
R833 2.2K
C808
180pF/25V
C803
100uF/16V
R804 0
C807
3.3nF/25V
R805 0
D801
2A/40V
C830
0.1uF
R8340R
C813
NC
U801
87654
321 N/C
ENCOMP
FBGNDSWINBS
C802
100uF/16V
C804
1uF/25V
L830
CHK-423
Q831
DTC114TKA/KSR1110
R832
1K
CN830
S5B-PH-K
12345
JP2
T-B12B_ZR
123456789
101112
R802
17K 1%
C812
1uF/16V
R803
10K 1%
F801 5A/125V
C805
100uF/16V
C833
0.1uF
L801 CHK-423
J800
DJ-005
2
13
C835
0.01uF
C810
220uF/16V
C809
1uF/16V
MUTE+ 7
SENSOR 7
STDBY 7VOLUME 7
!!ViewSonic Corporation Confidential Do Not Copy VG500-248
AA
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
0V
GND_S1
R+
U701
GND_S1
L-
2.5V min
L+
R-
GND_S1
GND_S1
GND_S1
GND_S1
GND_S1
Low off
Hi(5V)On
4V min
0V
1Vrms
10/16/2002
GND_S1
GND_S1 GND_S1
GND_S1
GND_S1GND_S1
GND_S1
GND_S1
GND_S1
GND_S1
GND_S1
7.0 SOUND AMPTitle
Size Document Number Rev
Date: Sheet
R_CH_I/P
L_CH_I/P
+5V
+5V
+5V
+12V
R703
3K
R707
22K
J701
LJE0359A-11
3
5
4
21
6
7
8
9
1110
AN7522
1
2
3
4
56
789
1011
12
VCC
CH1 O/P+
GND
CH1 O/P-
STAND-BYCH1 I/P
GNDCH2 I/PVOLUME
CH2 O/P-GND
CH2 O/P+
C715
1000pF
R702
270K
L7032CB160808A800
C705
470uF/16V
R706 0
R715 10K
R717
0
C716
1000pF
R710
1K
R704
1.5K
R711
1K
C711
1uF/25V
C703
0.1uF
R708 6.2K
R700 10K
R709 6.2K
CN701
S5BPH-K
12345
C707
100uF/16V
R716 1K/NC
L7022CB160808A800
C710
1uF/25V
C704
0.1uF
R718
100K
C706
10uF/16V
C714
10uF/16V/NCQ703DTC114TKA/KSR1110
Q702
DTC114TKA/KSR1110
L704 10uH
R705 1K
STDBY8
SENSOR8
VOLUMEMUTE+ 8
!!ViewSonic Corporation Confidential Do Not Copy VG500-249
TP
TP
TP
TP
!!ViewSonic Corporation Confidential Do Not Copy VG500-250
!!ViewSonic Corporation 51 Confidential Do Not Copy VG500-2
11. PCB Layout Diagrams
!!ViewSonic Corporation 52 Confidential Do Not Copy VG500-2
* *Reader's Response
Dear Readers,
Thank you in advance for your feedback on our Service Manual, which allows continuous improvementof our products. We would appreciate your completion of the Assessment Matrix below, for return toViewSonic corporation.
Assessment
A. What do you think about the content after reading Service Manual?VG500-2
Unit Excellent Cood Fair Bad
1. Precautions and Safety Notices
2. Specification
3. Front Panel Function Control Description
4. Circuit Description
5. Adjusting Procedure
6. Trouble Shooting Flow Chart
7. Recommended Spare Parts List
8. Exploded Diagram And Spare Parts List
9. Block Diagram
10. Schematic Diagrams
11. PCB Layout Diagrams
C. Do you have any other opinion or suggestion about this Service Manual?
Reader's basic data:
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After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You mayalso e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com)
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B. Are you satisfied with the Service Manual?VG500-2
1. Service Manual Content
2. Service Manual Layout
3. The form and listing
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