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- 1-1 -
[CONTENTS]
❍ SECTION 1. GENERAL• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• IDENTIFICATION OF CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
❍ SECTION 2. ELECTRICAL • ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
• TROUBLESHOOTING GUDIE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
• IC VOLTAGE SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
• SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
• PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
❍ SECTION 3. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
❍ SECTION 4. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
- 1-3 -
❏ IDENTIFICATION OF CONTROLS
FRONT/REAR PANEL
14
15
16 17
18
19
2 1110
3
13 1281
4 6
5
79
1. POWER (STANDBY/ON) button
2. CD SYNC. button
3. FUNCTION SELECT buttons (CD/TAPE)LEFT/RIGHT SPEAKER
4. • TAPE MODE button :• COUNTER RESET button :• TIMER button• CLOCK button• COUNTER button :
5. XDSS button
6. CD DOOR
7. REMOTE SENSOR
8. DISPLAY WINDOW
9. CD OPEN/CLOSE ( OPEN/CLOSE) button
10. • PROG./MEMORY button• FUNCTION SELECT button (TUNER/BAND)
11. VOLUME ( ) button
12. TAPE DOOR ( PUSH EJECT)
13. • RECORD/RECORD PAUSE ( ) button• CD SKIP/SEARCH ( ) button• TAPE REWIND/FAST FORWARD ( )
button• PRESET (-/+) button• TAPE REVERSE PLAY ( ) button• TAPE PLAY ( )/CD PLAY ( ) button• STOP ( )/CLEAR button
14. FM ANTENNA
15. MICROPHONE : OPTIONAL
16. BATTERY COMPARTMENT
17. HEADPHONE SOCKET ( PHONES) - ø 3.5mm : OPTIONAL
18. AC POWER INPUT SOCKET
19. VOLTAGE SELECTOR : OPTIONAL
- 1-4 -
Remote Control
POWER XDSS
TUNER/BAND EQ PATT.
VOLUMEPRESET
REPEAT
SLEEP
PROGRAM
SURR. MUTE
1 2
543 6
987 0
OPTIONAL
1
2345
6
14
131211
10
9
8
7
1. XDSS button2. POWER button3. TUNER/BAND button4. This button is not available.5. PRESET ( ) button6. CD FUNCTION buttons
• PLAY/PAUSE ( ) button• CD STOP ( ) button• CD SKIP/SEARCH ( ) button• REPEAT button
7. NUMBER buttons8. TAPE FUNCTION buttons
• RECORD/RECORD PAUSE button ( )• BACKWARD PLAY button ( ) : OPTIONAL• FORWARD PLAY ( ) button• TAPE STOP button ( )• FAST FORWARD ( ) button• REWIND ( ) button
9. SLEEP button10. PROGRAM button11. VOLUME ( ) button12. EQUALIZER PATTERN (EQ PATT.) button13. MUTE button14. SURROUND (SURR.) button
1. RECORD/RECORD PAUSE indicator2. MP3 indicator3. SLEEP indicator4. TIMER indicator5. PROGRAM indicator6. MEMORY indicator7. STEREO indicator8. BACKWARD PLAY indicator9. TAPE MODE indicator10. FORWARD indicator11. CD SYNCHRO RECORDING indicator12. CD PLAY/PAUSE indicator13. XDSS indicator14. Equalizer indicator15. Surround indicator16. CD REPEAT indicator17. • VOLUME indicator
• SOUND LEVEL METER
Display Window
REC
REPEAT
FLATXDSS SURR
CLASSIC POPROCK
1 ALL
SYNC SLEEP PROG STEREOMP3 TIMER MEMORY
1 2 3 4 5 6 7 8 9 10
11
121314
1516 17
- 2-1 -
SECTION 2. ELECTRICAL
❏ ADJUSTMENTS
1. TAPE DECK ADJUSTMENT
DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FORBLAY BACK MTT-114 L/R Output Azimuth adjusting screw L/R Maximum
2. RECORD BIAS ADJUSTMENT
DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FORREC MODE MTT-5511 C241 L201 AUTO-RVS 85kHz±5kHz
AUTO-STOP
- 2-2 -
❏ TROUBLESHOOTING GUIDE
1. CD
- 2-3 -
• OPEN COLOSE NG
CONNECTOR LOCKING CHECK (PN508,PN507)
DEFECTIVE MAINPOWER SUPPLY
DEFECTIVE MICOM
DEFECTIVE IC503
DEFECTIVE MICOMMECHANISM
CHECK POWER SUPPLY CIRCUIT (PN508,PN507)PN508 PIN 8 = 6.2V,PIN 7 = 5V,PN507 PIN 1 = 5V
CHECK VOLTAGE CHANGE LO+, LO- OF IC503(PN507, PIN OPEN:1 2, CLOSE:1 3)
CHECK VOLTAGE CHANGE OF OPEN CLOSE,AND BTLMUTE VOLTAGE(=5V)
(PN507 PIN 1 2:OPEN, 1 3:CLOSE, 1 4:BTLMUTE)
YES
YES
YES
NO
NO
NO
NO
- 2-4 -
• “READING” DISPLAY CHECK (=ONLY “CD” DISPLAY)
- 2-5 -
• READING OK CHECK (= “ NO DISC ” DISPLAY)
CONNECTOR LOCKINGCHECK(PN50 1 ,PN503)
DOES SLED MOVE?
DOSE LENSE MOVE?(UP&DOWN)
DOSE LASER LIGHT?
DOES SPINDLE ROTATE?
IS READING OK?
CHECK PN50 1 PIN 1 4,1 5(TA+,TA-)
CHECK PN503 PIN5.6(SP+,SP-)
CHECK PN50 1 PIN 1 0(LD)
CHECK PN50 1 PIN 1 5.1 6(FA-,FA+)
CHECK PN503 PIN3.4(SL+,SL-)
DEFECTIVE PICKUP ORIC503 OR IC501 OR IC502
DEFECTIVE PICKUP ORIC503 OR IC501
DEFECTIVE PICKUP ORIC502
DEFECTIVE PICKUP ORIC503
DEFECTIVE PICKUP ORIC503 OR IC501 OR IC502
A
B
C
D
E
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
- 2-6 -
• READING OK CHECK #A(=“NO DISC” DISPLAY)
DOSE SL+ WAVEFORMAPPEAR AT(IC503 PIN 1 4 AND
PN503 PIN3)WAVEFORM #2SLED MOTOR WAVE
DOSE SLIN WAVEFORMAPPEAR AT (IC503 PIN5)
WAVEFORM #2 SLEDDRIVE WAVE
CHECK PN503 CONNECTOR LINE
DEFECTIVE IC50
DEFECTIVE IC503
DEFECTIVE PN503CONNECTOR
DEFECTIVE PICUPSLED MOTOR
A
YES
NO
NO
NO
NO
NO
- 2-7 -
• READING OK CHECK #B(=“NO DISC” DISPLAY)
DOSE FA+ WAVEFORMAPPEAR AT(IC503 PIN 1 5 ANDPN50 1 PIN 1 6)WAVEFORM #3
FOCUS COIL DRIVE WAVEDOSE FAIN WAVEFORM
APPEAR AT (IC503 PIN26)WAVEFORM #3 FOCUS
DRIVE WAVE
CHECK PN50 1 CONNECTOR LINE
DEFECTIVE IC50 1
DEFECTIVE IC503
DEFECTIVE PN501CONNECTOR
DEFECTIVE PICUPFOCUS ACTUATOR
B
YES
NO
NO
NO
NO
NO
- 2-8 -
• READING OK CHECK #C(=“NO DISC” DISPLAY)
IC ?V APPLIED TO PIN 10 OF PN501LASER SUPPLY VOLTAGE CHECK
IS 3.3V APPLIED TOPIN3 OF IC502
RF IC SUPPLY VOLTAGECHECK
CHECK PN501 CONNECTOR LINE
DEFECTIVE IC501
IS 2.0V PIC2 OF IC502LASER CONTROLVOLTAGE CHECK
DEFECTIVE IC501
DEFECTIVE IC503
DEFECTIVE PICUPFOCUS ACTUATOR
DEFECTIVE PN501CONNECTOR
C
YES
YES
NO
NO
NO
NO
NO
NO
- 2-9 -
• READING OK CHECK #D(=“NO DISC” DISPLAY)
DEFECTIVE IC50 1
DEFECTIVE IC503
DEFECTIVE PN503CONNECTOR
DEFECTIVE PICUPSPINDLE MOTOOR
CHECK PN503 CONNECTOR LINE
D
NO
NO
NO
NO
DOSE SP+ WAVEFORMAPPEAR AT(IC503 PIN 1 2 AND
PN503 PIN6)WAVEFORM #4SPINDLE MOTOR DRIVE WAVE
DOSE SPIN WAVEFORMAPPEAR AT (IC503 PIN6)
WAVEFORM #4SPINDLE DRIVE WAVE
YES YES
- 2-10 -
• READING OK CHECK #E(=“NO DISC” DISPLAY)
E
DOSE TA+ WAVEFORMAPPEAR AT(IC503 PIN 17 ANDPN503 PIN 15)WAVEFORM #5TRACKING COIL DRIVE WAVE
DOSE TAIN WAVEFORMAPPEAR AT (IC503 PIN23)
WAVEFORM #5TRACKING DRIVE WAVE
DEFECTIVE IC503
DEFECTIVE IC501
DEFECTIVE IC503
DEFECTIVE PN503CONNECTOR
DEFECTIVE PICKUP ORIC502
DEFECTIVE PN503CONNECTOR
DEFECTIVE PICUPSPINDLE MOTOOR
DOSE ARF SIGNAL APPEAR?(IC502 PORT8)WAVEFORM#6
DOSE FE, TE SIGNAL APPEAR?(IC502 PORT FE:23,RE:21)
WAVEFORM#6
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
- 2-11 -
2. MAIN POWER
Main Power input (AC-cord in)
LCD Display ”Hello” Check the Voltage-selector 110V/230V(Duble Voltage only)
Check the DC out of C813(+) Check the Fuse Replace the Fuse
Replace the ZD805
Replace the Q810
Check the ZD805 of +10V
Replace the IC801
Check the D602, D604, D605
Check the ZD803, Q807
Check the Q601
Replace the X601, X602
Check the Q810 ”E ”DC Power-output
Check theD901,D902,D903,D904
Check the DC power output of IC801pin3 +5.2V
Check the power-output IC601pin17,54,90?
Check the DC +5.2V output of Q808 ”C”
Check the Reset of IC601 pin11, Q601 ”C”
Check the Oscillation of X601,X602
Replace the IC601
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
- 2-12 -
3. MUTING CIRCUIT(MUTE)
4. FUNCTION MODE AUDIO ABNORMAL
Dose “ HIGH ” appear atQ305, Q306 “ B ”
Check the “LOW ” of Q305, Q306 “E ”
MUTE
TAPE
CD
TUNER
Check the signal input of IC301 pin6,23
Check the signal input of IC301 pin3,26
Check the signal input of IC301 pin4,25
Refer to “Tuner Pack Trouble Shooting ”
Check the signal input of PN302 “R-CH ”“L-CH”
Refer to “TAPE Trouble Shooting ”
Check the “HIGH” of theIC601 pin9
Check the pattern
Replace the Q305, Q306
Check the IC601NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
- 2-13 -
5. IC301 TROUBLESHOOTING
Check the IC601 Function Selector
Check the Pattern
Replace the IC301
Replace the ZD 302
Replace the Q301
Check the IC601
END
Check the Power supplying to IC301 pin 1
Check the +8.2V DC output ZD302
Check the +7.5V DCOutput Q301 “E ”
Check the DC Output of Q814, ZD806
Check the Data ofIC601 pin 3,4
(CD � TAPE Function)
Check the CLK Data of IC301 pin 14,15
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
- 2-14 -
6. TUNER PACK TROUBLESHOOTING6. TUNER PACK TROUBLESHOOTING
Check the Tuner Power of PN101 “Tu- B+”
Check the DC output ofQ818 “C”
Check the “high”Q819 “B ”
Check the DC output Q802 “E ”
Replace Tuner pack
CE : Chip EmableDI : Data Input(From u-com)DO : Data Output(to u-com)CLK : Tuner Mode Clock
Check the PN101 of CE, DI, DO, CLK (PLL)
Is the normal?
END
YESYES
YES
YES
NO
NO
NO
- 2-15 -
7. TAPE TROUBLESHOOTING
Check the power supplying to IC201 pin18
Check the signal output ofIC201 pin5,20
Check the “LOW ” of Q210, 211 “B ”
Check the DC output Q815 “C”
Check the “high”IC601 pin92
Replace the Deck Mecha
Check the pattern
Check the Deck Mecha
Replace the IC201
YES
YES
YES
YES
NO NO
NONO
• Play
- 2-16 -
• REC
Check signal supplied to IC201 pin 11, 14
Check the “LOW ” of Q208, 209 ”B”
Check the “LOW ” ofIC601 pin32
Check the Oscillation of L201 pin1, 3
Replace the deck
Check the power supplying to C245(+)
Check the “LOW ”Q813 “C”
Check the IC601pin88
Check the DC outputof Q811 “C”
Check the Oscillation ofQ202 “E ”
Check the signal of R239, R240
Check the pattern
Check the 0.6V of Q203 “B ”
Replace the L201
Replace Q208, 209YES
YES
YES
YES
YES
YES
YES
NO NO
NO
NO
NO
NO
NO
- 2-17 -
❏ VOLTAGE SHEET
- 2-18 -
❏ BLOCK DIAGRAM
2-19 2-20
2-21 2-22
❏ SCHEMATIC DIAGRAMS
1. MAIN SCHEMATIC DIAGRAM (POWER/EQ/AMP)
2-23 2-24
2. FRONT/MICOM SCHEMATIC DIAGRAM
2-25 2-26
3. DECK SCHEMATIC DIAGRAM
2-27 2-28
4. CDP SCHEMATIC DIAGRAM
2-29 2-30
❏ PRINTED CIRCUIT DIAGRAM
1. MAIN P.C. DIAGRAM (COMPONENT SIDE)
2-31 2-32
1. MAIN P.C. DIAGRAM (SOLDER SIDE)
2-33 2-34
2. CD P.C. DIAGRAM (COMPONENT SIDE) 2. CD P.C. DIAGRAM (SOLDER SIDE)
2-35 2-36
3. KEY P.C. DIAGRAM 4. BATTERY/POWER P.C. DIAGRAM
2-37 2-38
❏ WIRING DIAGRAM
3-1 3-2
SECTION 3. EXPLODED VIEWS
A00
293
290
A46
351
285
A26
450
A41
453
280
452
452
452
281
282286
291
292
252
260
450
274
453
261
264 450
265
A42
451451
275
270
272
273
271
260
453
250
261
259
259
258
257
254
253
256
251
255256A
NOTE) Refer to “SECTION 4 REPLACEMENTPARTS LIST” in order to look for the part number of each part.
3-3 3-4
MEMO MEMO