CAUTION:Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and"PRODUCT SAFETY NOTICE" contained in this manual.
• Output Level : VIDEO OUT JACK (RCA Type)1.0Vp-p 75Ω unbalanced
: AUDIO OUT JACK (RCA Type)-4.7dBm 4.7kΩ unbalanced
• Digital : AC-3 Digital Audio Output(RCA Type)
: HDMITM
: IR Blaster Output: USB: PC - use HDMI: Lead-Free solder PWBs
WD-52327
V40 ChassisL65-A90
WD-52527
Pb Solder
L65-A90
Page 3
MODEL: L65-A90
INTRODUCTION ................................................................................................................................ 5Dimensions, weight, power usage, etc. ........................................................................................... 5
LED INDICATOR DIAGNOSTICS ..................................................................................................... 28
SERVICE ADJUSTMENTS ............................................................................................................... 31Service Mode Activation ................................................................................................................ 31Test Pattern Activation .................................................................................................................. 31Adjustment Function Selection ..................................................................................................... 32Horizontal and Vertical Position Adjustment .................................................................................. 32TSP Alignment .............................................................................................................................. 32Manual Keystone Geometry Alignment ......................................................................................... 33Data Transfer ................................................................................................................................ 34ASP Mirror Adjustment ................................................................................................................. 37
USING LEAD FREE SOLDER .......................................................................................................... 39
CHIP PARTS REPLACEMENT ......................................................................................................... 40
REPLACEMENT PARTS .................................................................................................................. 41Parts Ordering .............................................................................................................................. 41Critical and Warranty Parts Designation........................................................................................ 41Parts Tolerance Codes .................................................................................................................. 41Parts Quick Reference .................................................................................................................. 42Service Parts List .......................................................................................................................... 43
Digital Light Processing® and DLP® are registered trademarks of Texas Instruments.Dolby is a trademark of Dolby Laboratories.HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC.TV GUIDE and other related marks are registered marks of Gemstar-TV Guide International, Inc. and/or one of its affiliates.
MODEL: L65-A90
Page 5
Introduction
This service manual provides service instructions for the V40 chassis type. The specific models for each chassis type,dimensions and weight are listed below. Service personnel should read this manual thoroughly before servicing thischassis.
This service manual includes:1. Safety Precautions2. Assembly and disassembly instructions for cabinet and chassis components.3. Diagnosing Errors.4. Electrical and Mechanical adjustments.
The parts list section of this service manual includes:1. Mechanical parts.2. Electrical parts.
Schematic and block diagrams of the above listed models are included in this service manual for better understandingof the circuitry.
Product Safety Notice
Many electrical and mechanical parts in television receivers have special safety related characteristics. These charac-teristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained byusing replacement components rated for higher voltage, wattage, etc.
Replacement parts which have special safety characteristics are identified in this service manual.
Electrical components having such features are identified by shading on the schematic diagram and by bold type anda symbol in the parts list of this service manual. Therefore, the replacement for any safety part should beidentical in value and characteristics.
Pb SolderThe PWBs used in the V40 chassis are constructed using Lead-Free solder. When servicing useonly Lead-Free solder.
MODEL CHASSIS HEIGHT WIDTH DEPTH WEIGHTPOWER USAGE
L65-A90 V40 39.75" 57.75" 12.5" 137 135W
Page 6
MODEL: L65-A90
NOTICE: Observe all cautions and safety related notes located inside the receiver cabinet and on thereceiver chassis.
WARNING:1) Operation of this receiver with the covers removed presents both a shock hazard and a hazard from laser
radiation. Work on the receiver should not be attempted by anyone who is not thoroughly familiar withthe precautions necessary when working on high voltage and laser based equipment.
2) When service is required, observe the original lead dress. Where a short-circuit has occurred, replacethose components that indicate evidence of overheating.
CAUTION:
This TV is a CLASS 1 laser product. This TV poses no risk to eyes or skin during normal use. An exposurehazard may exist only if the protective housing is removed.
This TV contains a CLASS 4 laser device, which by itself may be hazardous. However, this TV incorporates aprotective housing, optics and electronics such that there should be no exposure to unsafe levels of laser lightduring normal operation and proper service.
Caution: Use of controls or adjustments or performance of procedures other than those specified herein mayresult in hazardous radiation exposure. Use external or remote controls to operate the product. Connection tosignal sources and power are accomplished through the external connectors.
The following precautions must be taken to avoid exposure to hazardous laser radiation during service.1) Prior to removing items marked with either of the two labels shown below, AC power must be removed. AC
power must not be re-applied until the cover(s) are replaced back into their original position and all screwsare in place. For the V40 Chassis, these items include the Lower Cabinet Back and the Light SourceAssembly.
Safety Precautions
CAUTION - CLASS 4 LASERLIGHT WHEN OPEN AVOID EYEOR SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION
CLASS 1 LASER PRODUCTComplies with FDA performance standards forlaser products except for deviations pursuantto Laser Notice No. 50, dated June 24th, 2007.
CAUTION - CLASS 4 LASERLIGHT WHEN OPEN AVOID EYEOR SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION
LOWER CABINETBACK
LIGHT SOURCEASSEMBLY
MODEL: L65-A90
Page 7
Safety Precautions (Continued)
2) Do not apply AC power to this device without the screen in place or if any portion of the enclosure, includingthe screen, is cracked, broken, a liquid is spilled onto the TV or is other wise damaged.
3) Do not defeat interlock switches unless specified in this manual.4) The following assemblies must not be disassembled beyond that described in this manual. They must be
replaced as complete units.• Light Source Assembly• Optical Engine including the Fiber Optic Cable
5) When handling the Fiber Optic Cable, observe the procedures described in this manual.
SAFETY INSPECTION:Prior to applying AC power, ensure the receiver is fully assembled and inspect the following:
a. The screen and all cabinet covers are securely in place and all screws and/or screw covers are presentas shown in the disassembly section of this manual.
b. The cabinet and screen assemblies are fully intact, are not broken, cracked or otherwise damaged.
If the receiver does not meet the conditions of a. and b. above, take corrective action before applying AC power.
LEAKAGE CURRENT CHECKBefore returning the receiver to the customer, it is recommended that leakage current be measured according to thefollowing methods.
1. Cold CheckWith the alternating current (AC) plug removed from the AC source, place a jumper across the two AC plugprongs. Connect one lead of an ohm meter to the AC plug and touch the other lead to each exposed metal part(i.e. antennas, handle bracket, metal cabinet, screw heads, metal overlay, control shafts, etc.), particularly anyexposed metal part that has a return path to the chassis. The resistance of the exposed metal parts having areturn path to the chassis should be a minimum of 1Meg Ohm. Any resistance below this value indicates anabnormal condition and requires corrective action.
2. Hot Check ...Use the circuit shown below to perform the hot check test.1. Keep switch S1 open and connect the receiver to the measuring circuit. Immediately after
connection, and with the switching devices of the receiver in their operating positions, measure the leakage current for both positions of switch S2.
2. Close switch S1, energizing the receiver. Immediately after closing switch S1, and with theswitching devices of the receiver in their operating positions, measure the leakage current for bothpositions of switch S2. Repeat the current measurements of items 1 and 2 after the receiver has
reached thermal stabilization. The leakage current must not exceed 0.5 milliampere (mA).
Page 8
MODEL: L65-A90
Product Transportation
A. Before Moving the TV Receiver…Install the Transportation Screws
1) Remove AC power.2) Raise Screw Cover to access screw opening.3) Use 5mm allen wrench to install Transportation Screw.4) Repeat at the 4 locations (a) shown above.
1. Transportation Screws… This receiver is provided with “Transportation Screws” to beused to secure the screen assembly during transportation. Prior to moving this set,remove AC power and install the 4 transportation screws as shown below.
B. After Moving the TV Receiver…Remove the Transportation Screws
1) Do NOT apply AC power.2) Use 5mm allen wrench to remove Transportation Screw.3) Slide Screw Cover back down over the opening.4) Repeat at the 4 locations (a) shown above.
NOTE: Transportation Screws are the property of the customer. Retain the screws with the set for future use.Suggestion: Place them in a plastic bag and attach it to the back of the set.
DETAIL - 4 LOCATIONS (a)SCREW COVER
TRANSPORTATIONSCREW
(a)
(a)
(a)
(a)
MODEL: L65-A90
Page 9
2. Removable Pedestal… This receiver comes equipped with a Pedestal that must beremoved to install either the optional wall mount kit, model LWM-65, or the optionalstand, model LFB-65. The TV receiver will not properly stand upright on its own withoutthe Pedestal.
When transporting, disassembling, and/or repackaging the receiver, the Pedestal mustbe re-installed using the eighteen screws in the locations shown below.
FRONT
PEDESTALBOTTOM VIEW
Product Transportation (Continued)
Page 10
MODEL: L65-A90
(b)
(a)
(a)
(a)
(b)
(a)
(a)(a)
Disassembly
CAUTION: Prior to disassembly, remove AC power. Unless specified in this manual, do notre-apply AC power until the set has been fully re-assembled and inspected asdescribed on page 7.
NOTES:1) Disassembly beyond what is shown in this manual is not recommended. For repairs requiring further disas-
sembly, contact MDEA at 1-800-888-6773.2) The Screen Assembly is unique to this product. As such, it is not considered to be a field serviceable item.
For repairs related to any part of the screen or screen assembly, contact MDEA at 1-800-888-6773.3) Do not allow the rear of the screen to come into contact with any other surface includingcleaning
cloths or fingers. Remove dust or other debris by blowing with a dry air source.4) For optional wall mount or stand mount installations, prior to disassembly see Removable Pedestal, page 9.
Upper Cabinet Back Removal1) Remove the six screws (a).2) Remove the two machine screws (b).3) Remove the Upper Cabinet Back.4) To re-install, reverse steps 1~2.
Electrical Chassis Removal1) Disconnect all cables from the
Electrical Chassis.2) Remove five screws (a).3) Remove two screws (b).4) Carefully remove the Electrical
Chassis from the Cabinet.5) To re-install, reverse steps 1~3. (b)
(a)
(a)
(a)
(a)
ELECTRICALCHASSIS
(a)
(b)
MODEL: L65-A90
Page 11
PWB-POWER Removal1) Remove seven screws (a)2) Disconnect all cables from the
PWB-POWER.3) Release Clips (b)4) Lift the PWB-POWER from the
Chassis.5) Reverse the removal procedure
to install a new PWB-POWER.
PWB-3D Removal1) Remove two screws (c) from
RS-232 connector.2) Remove one screw (d) from 3D
Emitter Jack.3) Remove two screws (e) from
PWB-3D.4) Disconnect the cable from the
PWB-3D.5) Lift the PWB-3D from the
Chassis.6) Reverse the removal procedure
to install a new PWB-3D.
Disassembly (Continued)
(a)
PWB-POWER
(a)
(a)
(b)
(b)
(c)
(c)
(d)
(e)
(e)
PWB-3D
(a)
(a)
(a)
(a)
POWER SUPPLY SHIELD
(a)
(a)(a)
(a)(a)
Power Supply Shield Removal1) Remove five screws (a)2) Lift the Power Supply Shield
from the Chassis.3) Reverse the removal procedure
for re-installation.
Page 12
MODEL: L65-A90
Disassembly (Continued)
Chassis Cover Removal1) Remove Power Supply Shield (Page 11).2) Remove Terminal Escutcheon by removing
two screws (a).3) Remove two screws (b) from the RS-232
connector on Terminal Panel.4) Remove four screws (c) from Terminal
Panel.5) Remove five screws (d) from around the
edge of the Chassis Cover.6) Disconnect the cables from the PWB-
POWER and PWB-3D.7) Lift the Chassis Cover from the Chassis.8) Reverse the removal procedure to re-install
the Chassis Cover.
TERMINAL ESCUTCHEON
(a)(a)
TERMINAL PANEL(c)
(b)
(c) (c)
(c)
(b)
(d)
CHASSIS COVER (d)
(d)(d)
(d)
MODEL: L65-A90
Page 13
Disassembly (Continued)
PWB-MAIN Removal1) Remove two antenna nuts (a) from the Terminal Panel.2) Remove five screws (b) from the Terminal Panel.3) Remove four machine screws (c) from the Terminal Panel.4) Remove nine screws (d) from the PWB-MAIN.5) Disconnect the cables from the PWB-MAIN.4) Lift the PWB-MAIN from the Chassis.
PWB-MAIN Installation1) Reverse the removal procedure to install a new PWB-MAIN.2) After fully re-assembling the set, perform the following data transfer procedures:
a. Press the <MENU> button on the remote control. The Customer Menu will appear.b. Press the <2-4-5-7> buttons. The Service Menu will appear.c. Press the <0> button. The Data Selection Menu will appear.d. Use the < > buttons to select “RESTORE ALIGNMENT AND WHITE BALANCE SETTINGS FROM
BACKUP” and press <ENTER>. You will automatically exit the Data Selection Menu.e. Press the <0> button. The Data Selection Menu will appear again..f. Use the < > buttons to select “RESTORE KEYSTONE GEOMETRY FROM BACKUP” and press
<ENTER>. You will automatically exit the Data Selection Menu.g. Press <EXIT> to quit.
(d)
PWB-MAIN
(d)
(d)
(b)
(d)
(a)(b)(b)(b)
(b)(c) (c)(c) (c)
(d) (d)
(d)
(d)
(d)
Page 14
MODEL: L65-A90
Disassembly (Continued)
Light Source Assembly RemovalWarning: Prior to removing the Light Source Assembly, AC power must be removed. AC power must notbe re-applied until all covers are replaced back into their original position, all screws are in place and theSafety Inspection described on page 7 has been performed.
CAUTION: The Fiber Optic Cable is sensitive to excessive pulling, bending and crushing forces. Do not bendcable more sharply than a bend radius of 100mm (4 inches). Do not pull on the cable. Do not crush the cable orallow it to kink. Do not allow the end of the fiber optic cable to make contact with any surface including fingers.
1) Remove the Electrical Chassis as described on page 10.2) Loosen the Tape used to secure the Fiber Optic Cable to the back wall.3) Disconnect all electrical connectors from the bottom of the Light Source Assembly.4) Remove 6 screws (a).
Note: The Light Source Assembly will now be held by the Hinges at the lower left and right side.
CAUTION - CLASS 4 LASERLIGHT WHEN OPEN AVOID EYEOR SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION
(a)
(a)LIGHT SOURCE
ASSEMBLY
(a)
(a)
(a)
CONNECTORS
TAPE
FIBER OPTIC CABLEMax. Bend Radius 100mm (4 inches)
(a)
MODEL: L65-A90
Page 15
5) Holding the Light Source Assembly with both hands at the bottom, pull the entire Light Source straight backslightly within the Hinge slots.
6) Carefully tilt back the Light Source Assembly from the top and secure in place using the support arms.
SUPPORT ARMS
Disassembly (Continued)
PULL STRAIGHT BACK SLIGHTLY
HINGE(RIGHT)
SUPPORT ARM
(RIGHT)
Page 16
MODEL: L65-A90
Disassembly (Continued)
7) Disconnect the four 8mm Fiber Optic Cable Connec-tors from the Light Source Assembly.Caution: Never loosen or tighten the chuck nutsused to attach the cable to the connectors.
8) After disconnecting the Fiber Optic Cable, tempo-rarily secure it to the back wall to prevent damage.
9) Use the End Caps and Special Yellow Tape suppliedwith the replacement Light Source or Optical Engineto cover and protect the ends of the Fiber OpticCables and Laser Modules until reassembly.
10) To remove the Light Source Assembly, tilt it back up and store the support arms. Then while supporting theassembly, remove the eight screws (a) and lift the assembly out.
Light Source Assembly Installation1) To install the Light Source Assembly, reverse the removal procedure.2) Use an 8mm open end torque wrench to tighten the Fiber Optic Cable Connectors to 0.2N • m (+/- 3%).
NOTE: When a Light Source Assembly or Light Engine is ordered, an 8mm open end torque wrench will besupplied on loan from the Parts Department.
3) Prior to applying AC power re-assemble the set and perform the Safety Inspection described on page 7.4) If the Light Source Assembly has been replaced, perform the following data transfer procedures:
Reset SENSOR-RGB Dataa. Plug in the TV and allow it to boot-up, but do not turn it On (Standby condition).b. On the front panel, press and hold the <MENU> and <CHANNEL > buttons at the same time about 5
seconds until the STATUS LED lights green for 3 seconds.Memorize SENSOR-RGBa. Turn the TV on and allow it to warm up for 5 minutes.b. Press the <MENU> button on the remote control. The Customer Menu will appear.c. Press the <2-4-5-7> buttons. The Service Menu will appear.d. Press the <0> button. The Data Selection Menu will appear.e. Use the < > buttons to select “MEMORIZE SENSOR-RGB” and press <ENTER>. A green
square will appear in the on screen display indicating the memorization process was sucessful. If ared square appears, repeat the Reset SENSOR-RGB Data and Memorize SENSOR-RGB Dataprocedures.
f. Press <EXIT> to quit.
(a) (a)(a)
(a)
(a)
(a)
(a)(a)
FOUR 8mmFIBER OPTIC
CABLE CONNECTORS
LASER MODULEYELLOW TAPE
FIBER OPTICCABLE
END CAP
MODEL: L65-A90
Page 17
Lower Cabinet Back RemovalWarning: Prior to removing the Lower Cabinet Back, AC power must be removed. AC power must notbe re-applied until all covers are replaced back into their original position, all screws are in place and theSafety Inspection described on page 7 has been performed.
1) Remove the Upper Cabinet Back as described on page 10.2) Remove the three screws (a) and remove the Lower Cabinet Back.3) To re-install, reverse steps 1~2.4) Prior to applying AC power re-assemble the set and perform the Safety Inspection described on page 7.
Optical Engine RemovalNote: The Fiber Optic Cable is part of the Optical Engine. The cautions for the Fiber Optic Cable on page 14 mustbe observed when handling the assembly.
1) Remove the Electrical Chassis (page 10) and disconnect the Fiber Optic Cable from the Light SourceAssembly (steps 1-9, starting on page 14).
2) Remove the Lower Cabinet Back.3) Remove sixteen screws (b) to remove the Lower Cabinet Shield from the Optical Compartment.
Disassembly (Continued)
LOWER CABINET BACK
(a)
(a)
(a)
CAUTION - CLASS 4 LASERLIGHT WHEN OPEN AVOID EYEOR SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION
LOWER CABINETSHIELD
(b)
(b) (b)
(b)(b)
(b)
(b)(b)
(b) (b)(b)(b) (b)
(b)(b)(b)
Page 18
MODEL: L65-A90
OPTICAL ENGINE(TOP VIEW)
(d) (d)
(d)(d)
4) Disconnect all connectors from the Optical Engine.5) Remove the two screws (c) from the bottom of the Optical Assembly.6) Slide the Optical Assembly out slightly and remove the Fiber Cover to release the Fiber Optic Cable.7) Carefully slide the Optical Assembly along with the Fiber Optic Cable out of the TV.
CAUTION: Do not allow the lens, mirrors or the rear of the screen to come into contact with any othersurface including cleaning cloths or fingers. Remove dust or other debris by blowing with a dry air source.
8) Remove four screws (d) to remove the Optical Engine from the Optical Mounting Plate.Hint: Use a long shafted screwdriver to avoid coming into contact with the lens or mirror.An anti-static, lint free cloth can be used to cover and protect the mirrors during service.
Disassembly (Continued)
OPTICAL ASSEMBLY
(c) (c)
JE
DVI
FIBER COVER
MODEL: L65-A90
Page 19
Optical Engine Installation1) To install the Optical Engine, reverse the removal procedure.2) Prior to applying AC power, re-assemble the set and perform the Safety Inspection described on page 7.3) As needed, perform the Vertical & Horizontal Position Adjustment, TSP Alignment and Manual Keystone
Geometry Alignment listed in the Service Adjustment section.4) If the Optical Engine has been replaced, perform the following data transfer procedures:
1. Reset SENSOR-RGB Dataa. Plug in the TV and allow it to boot-up, but do not turn it On (Standby condition).b. On the front panel, press and hold the <MENU> and <CHANNEL > buttons at the same time for
about 5 seconds until the STATUS LED lights green for 3 seconds.2. Memorize SENSOR-RGB
a. Turn the TV on and allow it to warm up for 5 minutes.b. Select a normal video source.c. Press the <MENU> button on the remote control. The Customer Menu will appear.d. Press the <2-4-5-7> buttons. The Service Menu will appear.e. Press the <0> button. The Data Selection Menu will appear.f. Use the < > buttons to select “MEMORIZE SENSOR-RGB” and press <ENTER>. A green
square will appear in the on screen display indicating the memorization process was sucessful. If ared square appears, repeat the Reset SENSOR-RGB Data and Memorize SENSOR-RGB Dataprocedures.
g Press <EXIT> to quit.3. Copy Settings To Backup
a. Press the <MENU> button on the remote control. The Customer Menu will appear.b. Press the <2-4-5-7> buttons. The Service Menu will appear.c. Press the <0> button. The Data Selection Menu will appear.d. Press the <1> button. The data settings will be copied to backup.
You will automatically exit the Data Selection Menu.e. Press <EXIT> to quit.
Disassembly (Continued)
Page 20
MODEL: L65-A90
PWB-SENSOR-RGB Removal1) Remove the Optical Assembly from the cabinet. See Optical Engine Removal steps 1-7, page 17.2) Remove one screw (a).3) Remove PWB-SENSOR-RGB from the side of the Optical Engine.
PWB-SENSOR-RGB Installation1) To install the PWB-SENSOR-RGB, reverse the removal procedure.2) Prior to applying AC power, re-assemble the set and perform the Safety Inspection described on page 7.3) If the PWB-SENSOR-RGB has been replaced, perform the “Reset SENSOR-RGB Data“ and “Memorize
SENSOR-RGB” procedures as detailed in the Optical Engine Installation procedure.
Disassembly (Continued)
PWB-SENSOR-RGB
(a)
MODEL: L65-A90
Page 21
PWB-SIDE / USB Cable RemovalNote: Refer to pages 10 & 17 for step 1.
1) Remove the Upper and Lower Cabinet Back and Lower Cabinet Shield from the Optical Compartment.2) Remove the two screws (a) and disconnect the connector to remove the PWB-SIDE from inside the cabinet.3) Remove the two screws (b) to remove the USB Cable Connector from inside the cabinet and disconnect the
opposite end from the Electrical Chassis.
CAUTION: Do not allow the lens, mirrors or the rear of the screen to come into contact with any othersurface including cleaning cloths or fingers. Remove dust or other debris by blowing with a dry air source.
PWB-SIDE / USB Cable Installation1) To install the USB Cable, reverse the removal procedure.2) To install the PWB-SIDE, reverse the removal procedure.3) Prior to applying AC power, re-assemble the set and perform the Safety Inspection described on page 6.
Disassembly (Continued)
USB CABLE CONNECTOR
(Inside Cabinet)
(a)
(a)
(b)
(b)
PWB-SIDE(Inside Cabinet)
Page 22
MODEL: L65-A90
PWB-SBL-(L/R) Removal1) Remove the screw (a) to remove the SBL bracket. Remove the two screws to remove the PWB-SBL-(L/R)
from the Bracket. Disconnect the connector from the PWB-SBL-(L/R). To re-install, reverse the procedure.
PWB-RST Removal1) Remove the screw (b) to remove the PWB-RST. Remove two screws to remove the PWB-SBL from the
Bracket. Disconnect the connector from the PWB-RST. To re-install, reverse the procedure.
PWB-CONTROLThe PWB-CONTROL is part of the Front Cover. If defective, the entire Front Cover must be replaced.
(a)
PWB-SBL-L
(b)
PWB-RST
PWB-CONTROL
Disassembly (Continued)
(a)(a)(a)
(a)
Front Cover Removal1) Remove four screws (a) from the bottom rear of the set.
(2) Lift the Front Cover out from the bottom first. Disconnect all connectors. To re-install, reverse the procedure.
MODEL: L65-A90
Page 23
OPTION MENU1. Press the <MENU> button on the remote control.2. Press the buttons<2-4-7-0>. (The screen will display the Option Menu.)
REMOTE CONTROL
DIGITAL SIGNAL STRENGTH1. Tune to a Digital Channel.2. From the Option Menu scroll down and highlight Digital Signal Strength.3. Press <ENTER>.
SNR Recommended Levels:VSB = 15 to 3564 QAM = 22 to 34256 QAM = 27 to 37
Example of Digital Signal Strength DisplaySignal QualityIndex (0-100)
Reset / InitializationSERVICE TIP:Many customer generated symptoms, intermittent symptoms or no symptom found can be resolved by using the variousReset and Initialization options. Before visiting the customer’s home ask the customer 1st to try the System Resetbutton on the control panel and if this does not resolve the issue, then they can perform an A/V Reset by pressing theGuide + Format buttons on the front panel at the same time. Then, if necessary, perform a user level Initialization bypressing MENU-123-ENTER with the remote. The customer should be made aware when settings and/or options will bereset. For more information, see the chart below.
NOTE: During Initialization, the set will reboot. Wait until the PowerLED stops flashing before unplugging or powering ON the TV.
Reset Name When to use How to use Resulting ActionRemote Control TV Layer Reset
Returns the remote control TV layer to normal operation.
1) 2) 2) 3) 3)
Set the slide switch to TV position.Press and hold the POWER button until it flashes twice then release the button.Enter the code 0 0 9 3 5.
Once the valid code has been entered and confirmed, the remote contrrol has been reset.
Remote Control TV Volume/Mute functions
Returns the volume and mute functions of the remote control to TV volume and mute for TV, Cable/Sat, VCR and DVD layers after the Audio Lock for AV Receiver feature has been used.
1) 2) 2) 3)
(1) Set the slide switch to TV position.(2) Press and hold the POWER button until it flashes twice then release the button.(3) Enter the code 9 9 3 VOL UP.
The remote will now operate the TV's volume and mute when the slide switch is in the TV, CABLE/SAT, VCR or DVD positions.
A/V Memory Reset, by individual input
When the audio and or video settings for a single input seems to be incorrect.
All Audio and Video settings for the individual input are reset except for the Listen To, Language, Balance and Closed Caption settings.
A/V Reset, all inputs
To reset audio and video adjustments for all inputs to the original factory settings.
All Audio and Video settings are reset to the factory default settings. No other menu options are changed.
System Reset
To reset the TV when it does not turn on or off, does not respond to the remote control, front panel buttons or has other unusual symptoms.
TV Micro Re-boots. Note: The changes made during the current TV-On period may be lost. All other previous user settings are not lost.
Initialize User Level
To reset all customer settings except V-Chip
All customer menu options and A/V settings except V-Chip are reset to factory default.
Initialize - Service Level
To reset all customer settings All customer menu options and A/V settings are reset to factory default.
V-Chip Password Bypass
If V-Chip password is not known Password will be bypassed. If in the V-Chip menu, enter a new password.
Unlock Front Panel
To unlock the front panel if it has been locked in the V-Chip Menu.
Front Panel becomes operational. Other V-Chip settings not changed. Note: Cannot be performed while in the Low Power mode and the set is Off.
MENU - 2470. Highlight INITIALIZE and press ENTER
Press QV + 9 at the same time.
Press and hold the front panel MENU button for 8 seconds.
MENU --> Audio/Video--> AV Reset
While viewing the TV, press the front panel buttons GUIDE + FORMAT at the same time.
Press the SYSTEM RESET button on the front panel with a pointed object such as a pencil or paperclip.
Press MENU - 123 - ENTER
MODEL: L65-A90
Page 25
INITIAL SETTINGSAudio/Video Setup MenuSettings Language (Idioma) EnglishVideo Scan Picture Mode Brilliant Ant1 Air --
Brilliant Contrast 100% Ant1 Cable --Brilliant Brightness 50% Ant2 Air --Color 50% Ant2 Cable --Tint 50% StartSharpness 50% EditBrilliant Color Temp High Channel in Memory All AddedVideo noise (High-Medium-Low-Off) Medium Name --
SharpEdge On FAV1 uncheckedDeep Field Imager On FAV2 unchecked
Treble 50% FAV6 uncheckedBalance 50% Lock UnlockSound mode Normal Timer ClockListen To (Analog Only) Stereo Settings ManualLanguage (Digital Only) English Time 12:00pmLevel Sound Off Date 1/1/2008
Time Zone Eastern Global Daylight Savings Applies Video Mute On Timer Gray out Audio Only Screen Saver On Timer Off Film Mode Auto Day Daily Smooth 120Hz Off Time 12:00pm
Blue Glow On if TV On Input ANT-1Test picture -- Channel 2
Format Energy
Ant-1,2 (480I) Stretch Energy Mode Fast Power On Ant-1,2 (HD Digital) Standard 3D Mode Gray out
Input-1,2,3,4 Stretch
HDMI-1,2, 3, 4 (Video or PC) Standard TV Volume 30% USB Photo Standard
(Continued on next page)
Reset / Initialization (Continued)
When INITIALIZATION is selected, all Customer Menu and Audio/Video settings are returned to the factory default valueslisted in the following charts.
Page 26
MODEL: L65-A90
Inputs M enu Captions Menu Name Closed CaptionsAnt-1 On A nalog Captions On if MuteAnt-2 On A nalog Background GrayInput-1 Gray out Digital Captions On if MuteInput-2 Gray out Input-3 Gray out Digital SettingsInput-4 Gray out Font DefaultHDMI-1 Gray out Font Size LargeHDMI-2 Gray out Font Color WhiteHDMI-3 Gray out Font Opacity TranslucentHDMI-4 Gray out Background Color Black Order Ant-1, Ant-2 Background Opacity Translucent Learn -- (Gray out for antenna) Lock M enu AVR -- Parent Learn -- Lock Of f Pow er On -- TV Rating TV -PG, TV-14,TV -MA
locked and all categories for each locked
V olume Up -- PG, PG-13, R, NC-17, X locked
V olume Dn -- Movie Rating 12:00pm Mute -- Start Time 12:00pm Pow er Of f -- Stop Time Gray out until available Input 1 -- Other Of f Input 2 -- Other ratings TBD Input 3 -- Rating Group TBD Input 4 -- Rating Input 5 -- Time Off HDMI Control Lock by Time 12:00pm NetCommand HDMI Control Of f Lock Time 12:00pm
Unlock TimeControl Panel Of f Lock Front Panel Buttons
INITIAL SETTINGS (Continued)
Reset / Initialization (Continued)
MODEL: L65-A90
Page 27
Reset / Initialization (Continued)
HDMI HDMI USB(Video) (PC) (JPEG)
Picture mode Brilliant Bril liant Brill iant Bright Bright BrilliantBrilliant Contrast MAX MAX MAX MAX MAX MAXBrilliant Brightness Center Center Center Center Center CenterColor Center Center Center Center Center CenterTint Center Center Center Center Center CenterSharpness Center Center Center Center Center CenterColor Temp. High High High High High HighPerfect Color Center Center Center Center Center CenterPerfect Tint Center Center Center Center Center CenterDeep Field Imager On On On n/a n/a OnVideo Noise Medium Medium Medium Medium Medium MediumFilm Mode Auto Auto Auto n/a n/a n/aSharpEdge On On On On Off OnBass Center Center Center Center Center n/aTreble Center Center Center Center Center n/aBalance Center Center Center Center Center n/aSound mode Normal Normal Normal Normal Normal n/aListen To Stereo n/a n/a n/a n/a n/aLevel Sound Off Off Off Off Off n/aLanguage (Digital only) English n/a n/a n/a n/a n/aVertical Position n/a n/a n/a Center Center n/aHorizontal Position n/a n/a n/a Center Center n/a
INITIAL AUDIO/VIDEO SETTINGS BY INPUT
A/V Memory Ant INPUTHDMI
(PC 3D)
A/V MEMORYEach of the external inputs has it’s own Audio/Video Memory. A change in an A/V setting at a specific inputis stored in memory for that specific input.
A/V RESET1. Press the front panel <GUIDE> and <FORMAT> buttons at the same time to initialize the A/V Memory for all inputs.2. The AV Reset in the user’s menu initializes only the selected input’s A/V Memory.
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MODEL: L65-A90
STATUS POWER
LED Indicator Diagnostics
Power LED Status LED ConditionOff Off Off (Standby)
Fast Blinking Green Off Initialization (40 - 60 seconds after set plugged
in or System Reset)Green Off Power On
Slow Blinking Green Off Power On Timer is set
Power LED Status LED ConditionTemperature high – room hot.
Off Yellow Laser unit temperature is abnormally high.Optical fiber temperature is abnormally high.
Blinking Cover-back (top/bottom) is open. Yellow Laser unit is not assembled completely.
Laser unit failure Laser abnormal brightnessLinear motor failureCommunication in laser unit failure
Off Red Chassis side failure Communication with laser micro fail Communication with engine fail No Lamp-EN, No ASIC-ready DVI cable disconnectionCircuit failure (short)
Blinking Fan Stop Red (DMD Fan, Fan in laser unit)
NORMAL LED INDICATIONS
ABNORMAL LED INDICATIONS
Off
Off
FRONT PANEL LED INDICATIONSThe front panel LEDs provide an indication of the set’s operation, and the possible cause of a malfunction. There are twofront panel LEDs, “Power” and “Status.” The LED display shows the current status or indicates a possible malfunction.If an abnormal condition is indicated, proceed to the Error Code Operational Check for more specific information.
ERROR CODE OPERATIONAL CHECKWhen an abnormal condition is indicated by the Status LED, perform the Error Code Operational Check.To activate, press the front panel <INPUT> and <MENU> buttons at the same time and hold for 5 seconds.The “POWER LED” will then flash denoting a two digit code.
• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.• The flashing then pauses for approximately 1/2 second.• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.• The Error Code is repeated a total of 5 times.
Example: If the Error Code is “23”, the LED will flash two times, pause, and then flash three times.
Note: The TV must be in “Shut Down” and not have been switched Off, to perform the Error Code Opera-tional Check. When the TV is switched Off, the code automatically resets to “12” No Error.
Note: Use the front panel buttons, not the remote control.Note: If there is no response, the front panel may be locked by a V-Chip setting. To unlock, press and hold
<MENU> for 5 seconds.
MODEL: L65-A90
Page 29
Error CodesThe Error Code designations indicating malfunction, or no malfunction, are listed below:
LED Indicator Diagnostics (Continued)
Error Code
Lock Out? Description Possible Cause
12No serious error since last main power on or last micro initialization, or no errors in the error code h istory list.
13 Cover-4 (Light Source Assembly) is open. Contact MDEA Tech Support 1-800-552-8324
If this is detected immediately after AC is applied, Standby Power supply short is detected. PWB-MAIN
I f this is detected after POW-ON from standby,Power supply (SPA3.3V) short is detected. PWB-MAIN
16 LAMP-EN doesn’t output from engine to TV micro Optical Engine17 Engine I2C bus communication error is detected Optical Engine, PWB-MAIN18 ASIC-ready from engine is not detected. Optical Engine, PWB-MAIN
19 YesFiber Optic Cable disconnected Or SENSOR-RGB Data is out of limits.**
23 Cover-1 (bottom rear cover) is open. Contact MDEA Tech Support 1-800-552-8324
25 Excessive temperature within Light Source Air circulation26 Laser FAN1 or 2 stop Light Source Assembly29 Internal communication error Laser micro Light Source Assembly37 DMD-FAN stops. DMD Fan, Engine38 Yes Laser unit temperature is abnormally high. Air Circulation, Light Source Assembly39 Abnormal low ambient temperature within Light source
Temperature too low, Light Source Assembly44 DVI cable is disconnected. DVI Cable or connection45 Diffuser motor stops. Engine
46 Yes Fiber temperature is abnormally high. Check optical fiber conditionReplace Engine/Optic Cable
48 P-ON short PWB-MAIN49 Yes Laser abnormal brightness Light Source Assembly56 FPGA communication error with laser micro Light Source Assembly57 Communication error between TV micro and Laser micro PWB-MAIN or Light Source Assembly58 Power supply short in Laser unit Light Source Assembly
67 Linear motor 1 or 2 abnormal Check Connector SC, Screen Assembly call MDEA 1-800-888-6773
68 Cover-3 (top rear cover) is open. Contact MDEA Tech Support 1-800-552-8324
** Error Code 19: To reset the SENSOR-RGB Data, first perform the Un-Lock procedure. Then with the set Off (Standby) press <MENU> and <Ch Up> for 5 seconds until the STATUS LED turns green for 3 seconds. After operation is restored, perform the MEMORIZE SENSOR-RGB procedure detailed in the Data Transfer section.
14
After correcting the cause, re-boot the TV and Un-Lock the set by pressing <MENU> and <Ch Down> for 5 seconds until Red Status LED goes out.
Lock Out: Receiver is locked and cannot be powered on even after AC-reset.
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MODEL: L65-A90
ERROR CODE LOG The Error Code Log - may be helpful to retrieve the code for an error the occurred in the past. To access the Error Code Log: Press <MENU> <3-5-6-4>
LAMP T IME CODE STATUS00413 HRS 57 OCCURRENCE00413 HRS 57 RECOVERY Press Up to Previous Page00716 HRS 32 OCCURRENCE00716 HRS 32 RECOVERY Press Right to Top Page00905 HRS 61 OCCURRENCE00905 HRS 61 RECOVERY Press CANCEL to Initialize
Press MENU to Exit
Error Code Definitions• Page - Current page number• Current Time - total hours of operational use.• Lamp Time - usage hours when the error occurred.• Code - the specific Error Code that occurred.• Status - Two types:
OCCURRENCE - when the error occurred.RECOVERY - when normal operation resumed.
NOTE: The Error Code Log is intended as a reference tool and is not meant to be used as a final determination of adefective part.
LED Indicator Diagnostics (Continued)
MODEL: L65-A90
Page 31
Service AdjustmentsThere are 2 types of Service Adjustments required in this model, Electrical and Mechanical:Electrical Adjustments
• Horizontal and Vertical Centering• TSP Alignment• 16 Point Keystone Alignment• 4:3 Geometry• Letterbox Geometry
Mechanical Adjustments• ASP Mirror Alignment
Measuring Equipment and Jigs• Remote Control. No other Test Equipment is required.
Test Signals• Internally generated Test Signals are used. No additional external signals are required.
NOTE: Except when specified, the receiver should be fully assembled for all Service Adjustments.
SERVICE MODEThe Service Mode is used for:
• Test Signal activation - Used for both Electrical and Mechanical Adjustments.• Horizontal and vertical position adjustment• Keystone, 4:3 and letterbox geometry adjustments.• Data transfer (restore and backup).• Memorize RGB Sensor.
1. Activating the Service Mode1. Press the “MENU” button on the remote control. The “Customer Menu” will appear.2. Press <2-4-5-7>. The Service Menu below will appear. If not, press “EXIT” and repeat steps 1 and 2.
2. Test Pattern ActivationWhen in the Service Mode, press PLAY < > to activate the internal test patterns (no indication willbe given), then use FAST FORWARD < > or REWIND < > to select the desired Test Pattern.
IS F
TVM1.HVPOS 13
65530
Page 32
MODEL: L65-A90
Service Adjustments (Continued)
3. Adjustment Function SelectionUse the “AUDIO” button to select a specific Adjustment Function.NOTE: There are 2 Service Functions on these models: “TVM” and the “ASIC” function. Service adjustmentsare performed in the (default) TVM mode.
4. Horizontal and Vertical Position Adjustment1. Enter the Service Mode (Step 1) .2. Select the Geometry Test Pattern shown below (Step 2).3. Select the TVM Function if necessary (Step 3).4. Use the “VIDEO” button to select the specific adjustment, “1.HVPOS”.
5. After selecting the HVPOS adjustment item, use the DIRECTION < > buttons to center the display.• If a UP/DOWN < > button is pressed, the vertical position and VPOS adjustment data changes.• If a RIGHT/LEFT < > button is pressed, the horizontal position and HPOS adjustment data changes.
6. Press <ENTER> to save the adjustment data in memory.The display characters go red for approximately one second in this step.Note: If the circuit adjustment mode is terminated without pressing <ENTER>, changes in adjustmentdata are not saved.
5. TSP Alignment1. Enter the Service Mode (Step 1) .2. Select the TSP Test Pattern shown in the following graphic by pressing PLAY < > two times, then use
FAST FORWARD < > or REWIND < > to select the TSP Test Pattern.3. Select the TVM Function if necessary (Step 3).4. Use the “VIDEO” button to select the specific adjustment, “2.TSP”.
ISF
TVM
1.HVPOS 13
65530
Data (HPOS)
Data (V POS)
Function
Adjustment
Geometry Test Pattern
MODEL: L65-A90
Page 33
5. Use the DIRECTION < > buttons to straighten the horizonal lines, see below.6. Press <ENTER> to save the adjustment data in memory.
The display characters go red for approximately one second in this step.
6. Manual Keystone Geometry AlignmentNote: If the upper left or right corner geometry is skewed in or out, perform the ASP Mirror Adjustment first.Note: If only minor edge geometry correction is required, proceed to Phase 3, Keystone Geometry Touchup.
1. Activate the Service Mode <MENU><2-4-5-7>. From the Service Menu, press the <0> button. The DataSelection Menu will appear.
2. Use the < > buttons to select “MANUAL KEYSTONE GEOMETRY ALIGNMENT” and press <ENTER>.The Manual Keystone Geometry Alignment Pattern will appear. See next page.
3. Perform a reset - Press <1> then <ENTER>. This will null all correction data. Then re-enter the ManualKeystone Geometry Alignment mode by repeating step 2.
Note: To restore the original factory correction data, select “RESTORE KEYSTONE GEOMETRY FROMBACKUP” and press <ENTER>.
Service Adjustments (Continued)
RESTORE ALIGNM ENT AND WHITE BALANCE SETTINGS FROM BACKUPRESTORE KEYSTONE GEOMETRY FROM BACKUPMANUAL KEYSTONE GEOMETRY ALIGNMENTMEM ORIZE SENSOR-RGB
BeforeAdjustment
AfterAdjustment
TSP Test Pattern
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MODEL: L65-A90
Phase 1 - Cursor Position1. 16 Adjustment Points are indicated by white dots around the edge of the raster. The adjustment position is
indicated by a + cursor.2. Starting from the upper left corner, use the < > buttons to align the + at each point in a straight line,
flush with the bezel as a reference. See example above.Note: Only the cursor will move. The Geometry Pattern will not change.
3. After adjusting each point, use the < > button to shift the cursor to the next point clockwise and repeatuntil all 16 points have been adjusted.
4. After all 16 points are adjusted and the cursor is returned to the original starting point, press <ENTER>.Correction will be automatically calculated and saved and the Manual Keystone Geometry Alignment willbe terminated.
5. Press <ENTER> to re-activate the Manual Keystone Geometry Alignment. The keystone geometry patternwill appear with the corrections applied.
Phase 2 - 4:3 and Letterbox Alignment1. With the Manual Keystone Geometry Alignment activated, press <VIDEO> to enter the 4:3 Alignment Mode.
The pattern will be displayed starting with the Left Blue 4:3 Line. Press <VIDEO> again for the Right Blue Line.2. In the 4:3 Alignment Mode, continuing to press < > will cause the geometry pattern to be displayed with
11 different preset amounts of correction. Continue pressing < > or < > to cycle through the 11 patternsuntil you find the one with the straightest 4:3 Mode Line. It may help to count the patterns as you cycle throughthem. When you find the pattern with the straightest Left Blue 4:3 Line, press <VIDEO>. The pattern with theRight Blue 4:3 Line will be displayed. Repeat the procedure. Press <VIDEO> again and the Top LetterboxAlignment Mode will then be activated as indicated by the Top Red Letterbox Line displayed in the pattern.
Service Adjustments (Continued)Cursor +
Adjustment Points (16 Total)
Align Cursor + Flush With Bezel Edge
+
Select Straightest Left Blue 4:3 Line Select Straightest Right Blue 4:3 Line
MODEL: L65-A90
Page 35
Service Adjustments (Continued)
3. In the Top Letterbox Alignment Mode, continuing to press < > will cause the geometry pattern to be dis-played with 15 different preset amounts of correction to the Top Red Letterbox Line. Continue pressing< > or < > to cycle through the 15 patterns until you find the one with the straightest Top Red LetterboxLine. Again, count the patterns as you cycle through them. When you find the pattern with thestraightest line, press <VIDEO>. The Bottom Letterbox Alignment Mode will then be activated asindicated by the Bottom Red Letterbox Line displayed in the pattern.
4. In the Bottom Letterbox Alignment Mode, continuing to press < > will cause the geometry pattern to bedisplayed with 10 different preset amounts of correction to the Bottom Red Letterbox Line. Continue pressing< > or < > to cycle through the 10 patterns until you find the one with the straightest Bottom RedLetterbox Line. Again, count the patterns as you cycle through them. When you find the pattern with thestraightest line, press <ENTER> to exit and save the 4:3 and letterbox data.
5. Select the Geometry Test Pattern (See HVPOS). If Keystone Geometry is acceptable, press <EXIT> to quit.To touch-up the raster geometry, proceed.
Phase 3 - Keystone Geometry Touch-up1. Enter the Manual Keystone Geometry Alignment mode (Steps 1~2, page 30).2. Use the < > or < > button to shift the cursor to the point needing correction.3. Use the < > buttons to indicate the direction and amount of correction necessary at the particular
point. Note: Only the cursor will move. The Geometry Pattern will not change.4. Press the <INFO> button to apply the correction. The Geometry Pattern will now show the correction.5. Repeat steps 2, 3 and 4 as needed.6. Press <ENTER> to save your changes. The Manual Keystone Geometry Adjustment will be terminated.7. Press <EXIT> to exit the alignment mode.
Select Straightest Top Red Letterbox Line
Select Straightest Bottom Red Letterbox Line
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MODEL: L65-A90
7. Data TransferAfter entering the Service Mode <MENU><2-4-5-7> and selecting the Data Transfer Menu <0>, three other dataselections are listed on screen.
• RESTORE ALIGNMENT AND WHITE BALANCE SETTINGS… restores HVPOS and White Balance data fromtheOptical Engine to the PWB-MAIN.
• RESTORE KEYSTONE GEOMETRY FROM BACKUP… restores Keystone Geometry data from the OpticalEngine to the PWB-MAIN.Procedure:a. Enter the Service Mode <MENU><2-4-5-7> Select the Data Transfer Menu <0>b. Use the < > buttons to select the data item and press <ENTER>.c. Press <EXIT> to quit.
a. Plug in the TV and allow it to boot-up, but do not turn it On (Standby condition).b. On the front panel, press and hold the <MENU> and <CHANNEL > buttons at the same time for
about 5 seconds until the STATUS LED lights green for 3 seconds.2. Memorize SENSOR-RGB
a. Turn the TV on and allow it to warm up for 5 minutes.b. Select a normal video source.c. Press the <MENU> button on the remote control. The Customer Menu will appear.d. Press the <2-4-5-7> buttons. The Service Menu will appear.e. Press the <0> button. The Data Selection Menu will appear.f. Use the < > buttons to select “MEMORIZE SENSOR-RGB” and press <ENTER>. A green
square will appear in the on screen display indicating the memorization process was sucessful. If ared square appears, repeat the Reset SENSOR-RGB Data and Memorize SENSOR-RGB Dataprocedures.
g Press <EXIT> to quit.
There is one additional Data Transfer option, COPY SETTINGS TO BACKUP - it backs up all data on PWB-MAIN ontothe Optical Engine. WARNING, use only after replacing the Optical Engine. To perform this option, from the DataTransfer Menu press the <1> button. The data settings will be copied to backup. You will automatically exit the DataTransfer Menu.
After PWB-MAIN Replacement…a) RESTORE ALIGNMENT AND WHITE BALANCE SETTINGSb) RESTORE KEYSTONE GEOMETRY FROM BACKUP
After Light Source Assembly Replacement…a) MEMORIZE SENSOR - RGB
After Optical Engine Replacement…a) COPY SETTINGS TO BACKUPb) MEMORIZE SENSOR - RGB
After PWB-SENSOR-RGB Replacement…a) MEMORIZE SENSOR - RGB
Service Adjustments (Continued)
<MENU> <2-4-5-7><0>
RESTORE ALIGNMENT AND WHITE BALANCE SETTINGS FROM BACKUPRESTORE KEYSTONE GEOMETRY FROM BACKUPMANUAL KEYSTONE GEOMETRY ALIGNMENTMEMORIZE SENSOR-RGB
MODEL: L65-A90
Page 37
Service Adjustments (Continued)
8. ASP Mirror AdjustmentNote: After ASP Mirror Adjustment, perform the Manual Keystone Geometry Alignment procedure.
1. Activate the Service Mode <MENU><2-4-5-7>. From the Service Menu, press PLAY < > to activate theinternal test patterns (no indication will be given), then use < > or < > to select the Geometry TestPattern. Refer to page 31
2. Press the <0> button. The Data Selection Menu will appear.3. Use the < > buttons to select “MANUAL KEYSTONE GEOMETRY ALIGNMENT” and press <ENTER>.
The Manual Keystone Geometry Alignment Pattern will appear. Refer to pages 31-32.4. Perform a reset - Press <1> then <ENTER>. This will null all correction data, exit the Manual Keystone
Geometry Alignment and return to the Geometry Test Pattern. Use the Geometry Test Pattern for theremainder of the ASP Mirror Adjustment procedure.
5. Remove two screws (a) to remove the ASP Mirror Adjustment Cover.
6. Loosen the left and right Adjuster Locking Screws using a 2mm (5/64”) L shaped allen wrench.
ASP MIRROR ADJUSTMENT COVER
(a) (a)
ADJUSTER LOCKING SCREWS
ASP MIRRORADJUSTMENT SCREWS
Page 38
MODEL: L65-A90
7. Adjust the Right Adjuster (facing the rear) in the direction indicated to adjust the top left (facing the front).
8. Adjust the Left Adjuster (facing the rear) in the direction indicated to adjust the top right (facing the front).
9. When raster geometry is as square as possible, tighten the Adjuster Locking Screws and replace the ASPMirror Adjustment Cover. NOTE: To prevent thread damage, avoid over tightening the Locking Screws.
10. Perform the Manual Keystone Geometry Adjustment procedure, page 32.
Service Adjustments (Continued)
ADJUSTER LOCKING SCREWS
ASP MIRRORADJUSTMENT SCREWS
MODEL: L65-A90
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Using Lead Free Solder
The above symbol indicates Lead (Pb) Free solder wasused during the construction of PWBs. Only Lead Freesolder should be used when servicing these PWBs.
Solder must be compatible with that used by the manu-facturer. Leaded solder can not be used on PWBsmanufactured with Pb-free solder. The Mitsubishi stan-dard for service requires the use of Tin-Silver-Copper (Sn-96.5, Ag-3.0, Cu-0.5). It can be obtained through theParts Department.Order part number: PB FREE SOLDER
Lead Free solder has a higher melting point, and does not“wet” as well as leaded solder. This means it does notadhere as readily to the solder iron tip, and the surface tobe soldered. To counteract this, the flux used is morecorrosive.
The following cautions must be taken when using Pb Freesolder.
• Higher temperatures can cause the PWB to warp,detaching surface mount components.
• Higher temperatures may cause thermal damageto components.
• Higher temperatures can cause plastics, such asconnectors, relays, LEDs electrolytic capacitors,etc. to melt or warp.
• Higher temperatures can cause surface oxidationresulting in poor solder spread-ability and wet-ability.
• The flux is more corrosive.• The time required for a good solder connection
may take longer.• Poor wet-ability can cause solder balls.
Pb Solder
Pb-Free Phase Definition Display
Short Display (When the area is too small)
Phase-1 PCB's constructed using Pb-free solder.
Phase-2 Solder, PCB surface finishing and component lead plating is Pb-free. Components may have internal Pb.
Phase-3 Solder, PCB surface finishing and components are Pb-free. (100% Pb-free)
Table 1: Pb-Free Phases and Symbols
Pb PCA
Pb Joints
Pb S
Pb J
Pb P
Pb Solder
• Higher temperatures can cause flux spattering.• Soldering iron tip life is shortened.• Dull finish solder joints (not shiny) can appear to
be a “cold” solder joint.
In general a tip temperature of 700° F will usually providegood results.
Displays used to indicate Pb-freePCBs will be marked, indicating the level of Pb-freeconstruction. Table 1 defines the levels by phase andshows the different symbols that will be displayed on thePCB. Additionally, a PCB constructed using Pb-freesolder may be simply marked LFS.
When possible, the indication will be placed close to thepart number that is screened onto the PCB (not the partlabel). Figure 1 is an example of a PCB showing thedisplay and its location.
Pb-FreeDisplay
Figure 1: Pb-Free display on PWB
Page 40
MODEL: L65-A90
Some resistors, shorting jumpers (0 Ohm resistors),ceramic capacitors, transistors and diodes are chip parts.The following precautions should be taken when replacingthese parts.
Cautions:1. Use a fine tipped, well insulated soldering iron
and tweezers.2. Melt the solder and remove the chip parts
carefully so as not to tear the copper foil fromthe printed circuit board.
3. Discard removed chips; do not reuse them.4. Do not apply heat for more than 3 (three)
seconds to new chip parts.5. Avoid using a rubbing stroke when soldering.6. Take care not to scratch, or damage the chip
parts when soldering.7. Supplementary cementing is not required.
Chip Parts Removal (Resistors, Capacitors, etc.)1. Grasp the part with tweezers. Melt the solder
at both sides alternately, and remove one sideof the part with a twisting motion.
2. Melt the solder at the other side and removethe part.
Chip Parts Replacement
Chip Parts Removal (Transistors)1. Melt the solder of one lead and lift the side of
that lead upward.2. Simultaneously melt the solder of the other
two leads and lift the part from the PCB.Replacement
1. Presolder the contact points on the circuitpattern.
2. Press the part downward with tweezers andapply the soldering iron as shown.
MODEL: L65-A90
Page 41
MARK B C D F G J K
Tolerance % ± 0.1 ± 0.25 ± 0.5 ± 1 ± 2 ± 5 ± 10
MARK M N V X Z P Q
Tolerance % ± 20 ± 30 ± 10 + 40 + 80 + 100 + 30
-20 -20 - 0 -10
MARK M N V X Z
Tolerance (pF) ± 0.1 ± 0.25 ± 0.5 ± 1 ± 2
Parts OrderingTo expedite delivery of replacement parts orders, specify the following:
1. Model Number/Serial Number2. Part Number and description3. Quantity
Note: Unless complete information is supplied, delay in processing of orders will result.
Critical and Warranty Parts Designation
Critical Electrical Components are indicated by Bold Type and a icon in the Parts List, and in theschematic diagrams by a red hatch and a .
Parts Tolerance CodesRefer to the following chart for tolerance characteristics of electrical components.
