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Sony HCD-EC68P, Service Manual

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Sony HCD-EC68P Service Manual Download Page 55

  Ref. No. 

Part No. 

Description 

Remark

  Ref. No. 

Part No. 

Description 

Remark

HCD-EC68P/EC78P

55

55

  

 

< 

TRANSISTOR 

>

 Q151  6-551-270-01 TRANSISTOR  2SA2026
 Q152  6-551-270-01 TRANSISTOR  2SA2026

  

 

< 

RESISTOR 

>

 R151  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

(EC78P: US, CND)

 R151  1-216-824-11 METAL 

CHIP  1.8K 

5%  1/10W

(EC78P: UK)

 R152  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

(EC78P: US, CND)

 R152  1-216-824-11 METAL 

CHIP  1.8K 

5%  1/10W

(EC78P: UK)

 R153  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

 R154  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

 R155  1-216-841-11 METAL 

CHIP  47K 

5%  1/10W

 R156  1-216-841-11 METAL 

CHIP  47K 

5%  1/10W

 R159  1-216-821-11 METAL 

CHIP  1K 

5%  1/10W

 R160  1-216-821-11 METAL 

CHIP  1K 

5%  1/10W

 R161  1-216-817-11 METAL 

CHIP  470 

5%  1/10W

 R162  1-216-817-11 METAL 

CHIP  470 

5%  1/10W

 R163  1-216-841-11 METAL 

CHIP  47K 

5%  1/10W

 R164  1-216-841-11 METAL 

CHIP  47K 

5%  1/10W

 R171  1-216-864-11 SHORT 

CHIP  0

 R172  1-216-809-11 METAL 

CHIP  100 

5%  1/10W

 R173  1-216-821-11 METAL 

CHIP  1K 

5%  1/10W

 R175  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

 R176  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

 R177  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

 R178  1-216-813-11 METAL 

CHIP  220 

5%  1/10W

0

 R179 

1-216-361-31  METAL OXIDE 

0.22 

5% 

2W 

F

0

 R180 

1-216-361-31  METAL OXIDE 

0.22 

5% 

2W 

F

 R181  1-216-822-11 METAL 

CHIP  1.2K 

5%  1/10W

 R182  1-216-822-11 METAL 

CHIP  1.2K 

5%  1/10W

 R183  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

 R184  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

 R185  1-216-825-11 METAL 

CHIP  2.2K 

5%  1/10W

 R186  1-216-825-11 METAL 

CHIP  2.2K 

5%  1/10W

 R195  1-216-817-11 METAL 

CHIP  470 

5%  1/10W

 R196  1-216-817-11 METAL 

CHIP  470 

5%  1/10W

************************************************************

  

 

JACK 

BOARD

  

 

***********

  

 

< 

CAPACITOR 

>

 C491  1-164-156-11 CERAMIC 

CHIP 0.1uF 

 

25V

 C495  1-162-964-11 CERAMIC 

CHIP 0.001uF  10%  50V

 C496  1-162-964-11 CERAMIC 

CHIP 0.001uF  10%  50V

  

 

< 

JACK 

>

  J491 

1-566-822-51  JACK (AUDIO IN)

 J492  1-815-629-21 JACK 

(PHONES)

  

 

< 

RESISTOR 

>

 R491  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

 R492  1-216-837-11 METAL 

CHIP  22K 

5%  1/10W

************************************************************

   

 

KEY CD BOARD

  

 

*************

  

 

< 

RESISTOR 

>

 R407  1-216-825-11 METAL 

CHIP  2.2K 

5%  1/10W

 R408  1-216-826-11 METAL 

CHIP  2.7K 

5%  1/10W

 R409  1-216-828-11 METAL 

CHIP  3.9K 

5%  1/10W

 R410  1-218-867-11 METAL 

CHIP  6.8K 

0.5%  1/10W

(EC78P: UK)

 R411  1-216-835-11 METAL 

CHIP  15K 

5%  1/10W

(EC78P: UK)

  

 

< 

SWITCH 

>

  SW306 

1-771-410-21  SWITCH, TACTILE (CD) (EC68P/EC78P: US, CND)

  SW306 

1-771-410-21  SWITCH, TACTILE (DISC 1) (EC78P: UK)

 SW307  1-771-410-21 SWITCH, 

TACTILE 

(DMPORT) 

(EC68P/EC78P: US, CND)

  SW307 

1-771-410-21  SWITCH, TACTILE (DISC 2) (EC78P: UK)

 SW308  1-771-410-21 SWITCH, 

TACTILE 

(

Z

) (EC68P/EC78P: US, CND)

  SW308 

1-771-410-21  SWITCH, TACTILE (DISC 3) (EC78P: UK)

 SW309  1-771-410-21 SWITCH, 

TACTILE 

(

Z

) (EC78P: UK)

  SW310 

1-771-410-21  SWITCH, TACTILE (DISC SKIP/EX-CHANGE) 

(EC78P: UK)

************************************************************

   

 

KEY POWER BOARD

  

 

****************

  

 

< 

SWITCH 

>

 SW301  1-771-410-21 SWITCH, 

TACTILE 

(I/

1

, STANDBY)

   

 

< CABLE HOLDER >

  W401 

1-824-027-21  HOLDER, CABLE 3P

************************************************************

  

 

LOW 

AMP 

BOARD

  

 

**************

  

 

< 

CAPACITOR 

>

 C101  1-126-960-11 ELECT 

1uF 

20%  50V

 C102  1-126-960-11 ELECT 

1uF 

20%  50V

 C103  1-164-315-11 CERAMIC 

CHIP 470PF  5%  50V

 C104  1-164-315-11 CERAMIC 

CHIP 470PF  5%  50V

 C105  1-162-927-11 CERAMIC 

CHIP 100PF  5%  50V

 C106  1-162-927-11 CERAMIC 

CHIP 100PF  5%  50V

 C107  1-126-947-11 ELECT 

47uF 

20%  35V

 C108  1-126-947-11 ELECT 

47uF 

20%  35V

 C109  1-162-908-11 CERAMIC 

CHIP 3PF 

0.25PF 50V

 C110  1-162-908-11 CERAMIC 

CHIP 3PF 

0.25PF 50V

 C116  1-162-968-11 CERAMIC 

CHIP 0.0047uF 10%  50V

 C119  1-126-968-11 ELECT 

100uF  20%  50V

(EC68P)

 C119  1-128-576-11 ELECT 

100uF  20%  63V

(EC78P)

 C120  1-126-968-11 ELECT 

100uF  20%  50V

(EC68P)

 C120  1-128-576-11 ELECT 

100uF  20%  63V

(EC78P)

 C123  1-165-621-91 CERAMIC 

CHIP 0.1uF 

 

50V

 C124  1-165-621-91 CERAMIC 

CHIP 0.1uF 

 

50V

 C125  1-100-566-91 CERAMIC 

CHIP 0.1uF 

10%  25V

 C126  1-100-566-91 CERAMIC 

CHIP 0.1uF 

10%  25V

 C128  1-100-566-91 CERAMIC 

CHIP 0.1uF 

10%  25V

LOW AMP

KEY POWER

KEY CD

JACK

HI AMP

Summary of Contents for HCD-EC68P

Page 1: ... at 6 Ω 1 kHz 10 THD Inputs AUDIO IN stereo mini jack Sensitivity 800 mV impedance 22 kilohms Outputs PHONES stereo mini jack Accepts headphones with an impedance of 8 Ω or more SPEAKER impedance HCD EC78P 8 Ω HCD EC68P 6 Ω CD player section System Compact disc and digital audio system Laser Semiconductor laser λ 770 810 nm Emission duration continuous Frequency response 20 Hz 20 kHz Signal to noi...

Page 2: ...R CES COM POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY SAFETY CHECK OUT After correcting the original service problem perform the follow ing safety check before releasing the set to the customer Check the antenna terminals metal trim metallized knobs screws and all other exposed metal parts for AC leakage Check leakage as des...

Page 3: ...e of the potential difference generated by the charged electrostatic load etc on clothing and the human body During repair pay attention to electrostatic break down and also use the procedure in the printed matter which is included in the repair parts The flexible board is easily damaged and should be handled with care NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrate...

Page 4: ...WER SWITCH TURN OFF Turn a gear by a driver till a lever falls down to the position of the figure lever gear EC78P UK EXCEPT EC78P UK Pull the tray by the hand Slide the boss by a driver boss knob VOL hole Push the knob VOL by the flat head driver front panel block back view ...

Page 5: ...IN board make a capacitor discharge of C622 and C626 for electric shock prevention 800 Ω 2W 800 Ω 2W Model Power Voltage Indication EC68P US EC78P US and Canadian models AC 120 V 60 Hz EC68P Australian model AC 230 240 V 50 60 Hz EC78P UK model AC 230 V 50 60 Hz MODEL IDENTIFICATION Back Panel POWER VOLTAGE INDICATION ...

Page 6: ... repeatedly when the For example you can view CD MP3 disc information such as during normal play artist name during normal play album or folder name during normal play total playing time while the player is stopped Display mode Power Saving Mode1 to operate Clock2 1 You cannot set the clock in Power Saving Mode 2 eight seconds Notes on the display information Characters that cannot be displayed ap...

Page 7: ...be all right reconnect the power cord and turn on the system If the issue persists contact your nearest Sony dealer General The system does not turn on Is the power cord plugged in There is no sound Are the and speaker cords short circuited Are you using only the supplied speakers Is anything blocking the ventilation holes on the top or back of the system Sound comes from one channel or the left a...

Page 8: ... repeatedly when the system is turned on Change Display mode See below DISPLAY repeatedly when the For example you can view CD MP3 disc information such as during normal play artist name during normal play album or folder name during normal play total playing time while the player is stopped Display mode Power Saving Mode1 to operate Clock2 1 You cannot set the clock in Power Saving Mode 2 eight s...

Page 9: ...ventilation holes on the top or back of the system to be all right reconnect the power cord and turn on the system If the issue persists contact your nearest Sony dealer General The system does not turn on Is the power cord plugged in There is no sound Are the and speaker cords short circuited Are you using only the supplied speakers Is anything blocking the ventilation holes on the top or back of...

Page 10: ...OCK EC68P EC78P US Canadian Page 13 EC68P EC78P US Canadian 3 10 1 CD MECHANISM BLOCK EC68P EC78P US Canadian Page 15 3 11 BASE UNIT EC68P EC78P US Canadian Page 15 3 12 BELT EC68P EC78P US Canadian Page 16 3 13 BELT EC78P UK Page 16 3 14 OP BASE ASSY KSM 213D Page 17 3 4 MAIN BOARD Page 12 3 7 BACK PANEL BLOCK Page 13 3 8 3 CD MECHANISM BLOCK EC78P UK Page 14 3 14 OP BASE ASSY KSM 213D Page 17 3 ...

Page 11: ... in the numerical order given 3 2 SIDE PANEL L R 3 3 PANEL TOP two screws BVTP3 10 two screws BVTP3 10 four screws case3 TP side panel L side panel R four screws case3 TP panel top two claws two screws BVTP3 10 two screws BVTP3 10 screw KTP3 10 screw KTP3 10 ...

Page 12: ...e 31 core CN803 flexible flat cable 9 core CN605 flexible flat cable 11 core CN609 connector CN604 flexible flat cable 21 core CN608 3 4 MAIN BOARD two screws BVTP3 10 flexible flat cable 9 core CN605 flexible flat cable 11 core CN609 Turn a gear by a driver till a lever falls down to the position of the figure pull the tray by hand lever gear flexible flat cable 31 core CN803 flexible flat cable ...

Page 13: ...ide the boss by a driver pull the tray by hand flexible flat cable 31 core CN803 door 1 CD front panel block boss 3 7 BACK PANEL BLOCK four screws BVTP3 10 two screws BVTP3 10 screw BVTP3 10 connector power cord CN053 connector CN601 back panel block Cut the clamp two screws BVTP3 10 two screws BVTP3 10 EC78 Note Please do not forget fixation by clamping when you install the power cord ...

Page 14: ...08 CD board CN201 flexible flat cable 13 core 3 CD mechanism block cover DLM3 two screws BVWH Note When installing the CD mechanism section install two tapes for prevention of noise insulator insulator base unit insulator insulator two springs insulator two screws PTPWHM2 6 two screws PTPWHM2 6 Bottom view two springs insulator 3 CD mechanism block ...

Page 15: ... flexible flat cable 21 core CN201 flexible flat cable 5 core CN001 1 CD mechanism block two screws BVTP4 12 PT block two screws BVTP4 12 connector CN053 insulator insulator base unit insulator insulator two springs insulator two floating screws two floating screws floating screw loading BK assy Bottom view two springs insulator ...

Page 16: ...HCD EC68P EC78P 16 3 12 BELT EC68P EC78P US Canadian 3 13 BELT EC78P UK belt claw claw tray AU belt position of belt four screws cover two belts DLM3A belt belt position of belt ...

Page 17: ...HCD EC68P EC78P 17 3 14 OP BASE ASSY KSM 213D op base assy KSM 213D flexible flat cable 16 core CN301 CD board Remove four solders ...

Page 18: ...ess two buttons of CD N and I 1 simultaneously 5 Set to the CD ship mode chucking on 6 After blink STANDBY LOCK is displayed disconnect the AC plug CD TRAY LOCK This mode is for the antitheft of CD disc in shop not for trans port Procedure 1 Press the I 1 button to turn the power on 2 Press the FUNCTION button to select CD function 3 Insert a disc 4 While pressing the x button press the Z button f...

Page 19: ...o move up to the higher lay er TUNING M L l m TUNING Use these keys to move the cursor to the right digit or to the left digit in the six digit number when changing the numeric value Press TUNING M L to move the cursor to the right and press l m TUNING to return the cursor to the left FUNCTION Use this key to execute Command Out in the Com mand Out Mode CD Servo Test Mode Tree S Curve Mode LD ON B...

Page 20: ...ed as D0xxxxxx x means hexadecimal number on the liquid crystal display as shown below In the same way as the CDM error code use of the TUNING M L and the l m TUNING but tons in this mode enables tracing of the error history 7 To release from this mode press the I 1 button to turn the power off Contents of CDM Errors Error display example M 0 FF 11 42 1 2 3 4 1 It indicates the error history numbe...

Page 21: ...ent in each processing CD FACTORY MODE Note1 Do not enter the CD FACTORY MODE while any other test mode is in progress Note2 Do not enter any other test mode while the CD FACTORY MODE is in progress Procedure 1 Press the I 1 button to turn the power on 2 Press the FUNCTION button to select CD function 3 Press three buttons of CD N FUNCTION and DIS PLAY simultaneously 4 It enters the CD factory mod...

Page 22: ... the CD N button to playback 4 Confirm that oscilloscope waveform is as shown in the figure below eye pattern A good eye pattern means that the diamond shape in the center of the waveform can be clearly distinguished VOLT DIV 200 mV TIME DIV 500 ns level 1 2 0 3 Vp p Checking Location TP124 VC CD Board Conductor Side TP121 RFI IC101 AM Setting FUNCTION AM AM RF signal generator 30 amplitude modula...

Page 23: ...N FM FM RF signal generator Carrier frequency 98MHz Modulation deviation by FM 75 kHz Output level 60 dBuV level meter MAIN board JW801 TUNER GND MAIN board IC801 pin RT TUNER OUT L ch set MAIN board ANTENNA CN801 pin MAIN board ANTENNA CN801 pin 1 Turn the set to 98 MHz 2 Adjust L802 so that modulation distortion may become the best in the vicinity of the maximum value where the tuner out level b...

Page 24: ...3 1 19 18 IC801 pin XL TUNER VT IC801 pin RT TUNER OUT L ch MAIN Board Conductor Side L802 FM Detector Adjustment MAIN Board Component Side L803 FM Frequency Coverage Adjustment L801 FM Frequency Coverage Adjustment L805 AM Tracking Adjustment JW801 TUNER GND L804 AM Tracking Adjustment ...

Page 25: ... 54 O 3CD M1 O CDM M1 8 O 3CD M1 O CDM M1 10 O 3CD M2 NC 11 O 3CD M2 NC 12 O CD SBSY 43 B A M M MOTOR DRIVER IC303 S001 DISC TRAY OPEN CLOSE DETECT CLOSE OPEN M001 LOADING EC68P EC78P US Canadian EC78P UK MOTOR DRIVE Q311 318 SW3 SW2 I CHACK SW1 I 3CD SW1 O CDM OPEN 7 I 3CD SW3 O CDM CLOSE 5 I 3CD SW2 NC 6 I 3CD CHACK 21 I STOCK I OPEN I CLOSE I 3CD STOCK 22 I 1CD CLOSE_OPEN NC 48 AM FM DET OSC MI...

Page 26: ...OLTAGE DETECT Q761 762 4V REGULATOR Q302 304 D631 9V CD 3 3V 3V REGULATOR Q801 TUNER 3V 5V REGULATOR Q802 TUNER 5V SYSTEM 3 3V D152 D601 R CH D303 D055 D617 D628 D602 606 M M DC DETECT Q618 STANDBY SWITCH Q608 J492 RY602 R CH PHONES J491 AUDIO IN CN901 DMPORT SPEAKER IMPEDANCE USE 6Ω SPEAKER LOW FREQ IMPEDANCE USE 8Ω SPEAKER HIGH FREQ IMPEDANCE USE 8Ω R L TB602 R CH R L TB601 R CH R CH 2 O AMP ON ...

Page 27: ...to normal production tolerances Circled numbers refer to waveforms Signal path F FM f AM J CD PLAY i AUDIO IN g DMPORT Abbreviation AUS Australian model CND Canadian model For Printed Wiring Boards Note X Parts extracted from the component side Y Parts extracted from the conductor side W indicated side identified with part number f Internal component Pattern from the side which enables seeing The ...

Page 28: ... R128 R129 R143 R139 C136 R120 R114 C153 C112 R125 R126 C149 C139 R127 R118 R140 R151 C122 C123 R220 R104 S201 R155 C128 C106 C201 R304 R302 C309 C205 C207 C307 R303 C133 R111 R112 C115 R211 Q301 R301 C204 C202 C206 C306 R212 C401 C130 X102 C405 IC201 IC401 IC101 R201 R142 CD BOARD COMPONENT SIDE CD BOARD CONDUCTOR SIDE 3 1 4 5 1 7 8 14 28 22 21 15 TP124 VC TP121 RFI 1 25 26 50 51 75 76 100 1 21 M...

Page 29: ...100 100 100 100 100k 100k 100k 100k 100k 100 0 100 2SA2119K 100k 100 10V 100 100 16P 220 220 10V 47k 10k 470k 1k 47k 22k 47k 10k 0 0 100k 0 TK63115SCL G GT 0 1 1 0 001 0 1 470p 0 1 470p 0 1 0 1 0 0022 0 1 0 1 0 1 0 01 0 01 0 022 C119 0 022 0 1 0 0047 0 0047 0 0 0 0 0 22p 0 1 0 01 470p 0 01 47p 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 10k 100 22 6 3V 47 0 1 0 1 0 470p 470p 0 01 0 001 22k 470k 1M 0 1 0 1 47p...

Page 30: ...6 R674 R675 C833 C641 RY601 RY602 RY601 RY602 C644 C646 JW601 JW602 JW603 JW604 JW605 JW606 JW607 JW608 JW609 JW801 C661 JW802 JW803 C663 JW610 JW804 C664 JW611 C665 JW612 JW613 C667 D607 D608 D701 JW615 C669 D609 JW616 JW617 JW618 JW619 D610 C671 D611 D612 C673 JW620 JW621 ET601 C675 D615 ET602 JW622 C676 JW623 JW624 JW625 D619 JW626 JW627 JW628 JW629 D620 JW630 JW631 JW632 JW633 JW634 D629 JW635...

Page 31: ... R650 4 7k R651 4 7k R727 4 7k R728 4 7k 47k R678 1 C695 1 C696 47 R674 47 R675 100k R729 C699 1000p C700 1000p MAZ8082GMLS0 D622 MAZ8043GMLS0 D621 2SC3052F T1 LF Q611 100k R669 10k R670 10k R628 4 7k R637 0 01 C619 4700p C629 10k R672 50V 3 3 C641 ISA1235AC1TP 1EF Q612 ISA1235AC1TP 1EF Q618 1 2 3 4 5 5P CN633 PA GND OUT R VH VH OUT L 1 2 3 4 5 6 7 8 9 CN605 9P AUDIO L A GND AUDIO R HP GND HP L HP...

Page 32: ... 470k 16V 100 C802 C830 2p TP687 1 6 2 3 4 5 L805 C831 0 47 R813 470k CF G I O FL801 TP690 1 2 3 4 6 L801 C814 C814 815 4700p EC68P AUS EC78P UK 0 01 EC68P US EC78P US CND L803 C832 0 47 R842 0 TP686 L804 C848 0 1 R817 47k R826 1k R836 6 8k C844 0 1 SV230 TB E D804 C808 18p C828 100p 2SC3052F T1 LF Q801 R814 22k R807 22k R815 10k R806 47k R825 4 7k R832 1M C840 0 1 JW801 C826 1000p BPF G I O FL803...

Page 33: ... ISA1235AC1TP 1EF Q761 10V 100 C762 DTC114EKA Q762 R767 2W 0 47 47 R769 47 R759 RK36LF A4 D701 10k R768 1 2 3 4 5 IC BD9701CP V5 IC701 VCC OUT GND INV STBY R770 0 JW788 4 5 7 6 DMP DET USB RST DMP TXD DMP RXD DMP L 5V ON TP REC MUTE DMP R DMP 5V DET LINE AMP IC770 IC701 5V REGULATOR VOLTAGE DETECT Q761 762 MAIN BOARD 3 3 7 11 D B 6 9 10 5 3 1 12 C E 8 4 A 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1...

Page 34: ... 12 11 10 STK433 070 EC78P UK STK433 090 F EC78P US CND IC151 PRE VCC VCC LO LO RO RO PRE SUB GND LI LI ST BY RI RI C156 100p C155 100p C159 3p C160 3p C170 C169 100 6 3V 100 6 3V R173 1k R164 47k R163 47k R155 47k R156 47k R151 R151 152 220 EC78P US CND 1 8k EC78P UK R152 C153 470p C154 470p C178 0 1 R159 1k R160 1k C161 0 01 C162 0 01 0 1 C174 0 1 C173 R172 100 R181 1 2k R182 1 2k R183 22k R184 ...

Page 35: ...3 47k R114 47k R113 47k R107 47k R108 25V 47 C108 25V 47 C107 R103 R104 R105 R106 470p C103 470p C104 0 1 C128 1k R109 1k R110 0 1 C124 0 1 C123 0 R101 0 R102 22k R133 22k R134 1 2k R132 1 2k R131 R122 100 1 2 3 4 5 5P CN104 PA GND OUT R VH VH OUT L TP101 TP102 TP103 TP104 TP105 TP107 TP108 TP109 TP110 TP111 470 R112 470 R111 1 2 3 4 5 5P CN102 PROTECT AMP ON IN L A GND IN R MA2J1110GLS0 D103 0 R1...

Page 36: ... JW392 JW393 JW394 JW395 JW396 JW398 JW397 JW399 JW400 JW401 JW402 JW403 JW404 JW405 JW406 Q302 Q309 LED301 SW303 SW303 SW304 SW305 TUNING W301 3 1 SW311 SW312 SW313 SW314 SW315 SW316 SW317 SW318 SW319 CN301 CN302 CN303 CN306 C302 C303 C305 C306 C309 C357 C352 X301 X302 S301 C343 JW301 JW302 JW303 JW304 JW305 JW306 JW307 JW308 JW309 JW310 JW311 JW312 JW313 JW314 JW315 JW316 JW317 JW318 JW319 JW320...

Page 37: ...M2 NC O 3CD M2 NC X0A X1A VCC VSS I O CD BUS0 I O CD BUS1 I O CD BUS2 I O CD BUS3 I 3CD CHACK I 3CD STOCK O DR MUTE I REQ O CD BUCK O CD CCE O CD RST O LED STBY I USB TXD I DMP TXD I USB DO I DMP 5V DET O USB RXD O DMP RXD AVCC I TU DO O USB DI 5V ON O TP REC MUTE AVSS I P MONI I KEY1 I KEY2 I TU ANSD O USB SEL1_2 O SW ON I TP STATE I KEY WAKE UP VOL I HOLD O CD SBSY GND I DMP DET O USB RST I MODE...

Page 38: ...STANDBY SW301 B 5 3 1 C D E F G 4 A 2 3 2 1 3P W610 OUT GND IN EC68P EC78P US CND EC78P UK Page 37 Page 31 6 16 SCHEMATIC DIAGRAM KEY Section Page 37 Page 31 6 15 PRINTED WIRING BOARDS KEY Section Uses unleaded solder See page 27 for Circuit Boards Location R407 R411 R409 R410 R408 KEY CD BOARD R491 R492 1 9 C491 C495 C496 JACK BOARD C698 1 3 2 SW301 SW306 310 1 2 SW310 SW307 SW307 SW309 EC78P UK ...

Page 39: ...TED WIRING BOARD MOTOR Board EC68P EC78P US Canadian models 6 18 SCHEMATIC DIAGRAM MOTOR Board EC68P EC78P US Canadian models Uses unleaded solder See page 27 for Circuit Boards Location Waveforms CD Board IC101 XG XO CD play mode 1 V DIV 20 ns DIV 59 1 ns 3 3 Vp p IC101 JB RFi CD play mode 200 mV DIV 500 ns DIV 0 5 to 1 3 Vp p XB IC801 RM XIN 500 mV DIV 5 μs DIV 13 3 μs 1 Vp p MAIN Board FT IC301...

Page 40: ...NOT REPLACEABLE BUILD IN TRANSFORMER PT001 EC68P US EC78P EC68P US EC78P EC68P US EC78P EC68P US EC78P PT002 EC68P AUS SUB POWER TRANSFORMER EC68P AUS EC68P AUS EC68P AUS EC68P AUS EC68P AUS AC IN PT003 EC68P PT004 EC78P MAIN POWER TRANSFORMER J MAIN BOARD CN604 1 875 494 14 14 B C D E F 1 2 3 4 5 A CHASSIS Page 30 6 19 PRINTED WIRING BOARD PT Board Uses unleaded solder See page 27 for Circuit Boa...

Page 41: ...IVE NEUTRAL PT002 PT003 3 11 12 13 14 5 10 2 4 6 PT004 3 11 12 13 14 1 5 10 2 4 6 1 3 4 5 6 7 8 9 2 PT001 0 1 C052 PT BOARD EC68P AUS EC68P AUS EC68P AUS EC68P US EC78P EC68P US EC78P AC IN SUB POWER TRANSFORMER SUB POWER TRANSFORMER MAIN POWER TRANSFORMER MAIN POWER TRANSFORMER EC68P EC78P NOT REPLACEABLE BUILD IN TRANSFORMER W001 CHASSIS 7 11 D B 6 9 10 F 5 3 G 1 12 C E 8 4 13 A 2 1 3 4 5 6 7 8 ...

Page 42: ... D1 8 D2 9 SEL2 10 SEL1 INPUT SELECTOR TREBLE BASS INVERTER VOLUME INPUT GAIN SURROUND PC BUS LOGIC IC701 BD9701CP V5 VCC 1 OUT 2 GND 3 INV 4 STBY 5 REGULATOR STANDBY VOLTAGE REFERENCE IC801 LV23003VA 1 AM RF IN 3 FM MIX 2 REG 6 VCC1 4 GND1 AM RF AM MIX AM DET AM IF FM DET FM IF SD FF VCO FF FF ST TRIG STSW FM MIX FM OSC AM OSC OSC BUFFER FM S METER DECODER PHASE COMPARATOR MUTE PROGRAMMABLE DIVID...

Page 43: ...the input selector 28 DVDD3 Power supply terminal 3 3 V 29 DVR O Reference voltage 1 65V output terminal 30 LO O Audio data L ch output to the input selector 31 DVSS3 Ground terminal 32 VDDT3 Power supply terminal 3 3 V 33 VSS1 Ground terminal 34 VDD1 Power supply terminal 1 5 V 35 VDDM1 Power supply terminal 1 5 V 36 SRAMSTB I S RAM standby mode control signal input terminal Fixed at L in this se...

Page 44: ...und terminal 80 SLCo O EFM slice level output terminal 81 RFi I RF signal input terminal 82 RFRPi I RF ripple signal input terminal 83 RFEQo O EFM slice level output terminal 84 VRo O Reference voltage 1 65V output terminal 85 RESiN O External resistor connection terminal 86 VMDiR O Reference voltage 1 65V output terminal for automatic power control circuit 87 TESTR O Low pass filter terminal for ...

Page 45: ...ut to the CD MP3 processor L reset 28 O LED STBY O LED drive signal output terminal for STANDBY indicater 29 I USB TXD I DMP TXD I Serial data input from the DMPORT connector 30 I USB DO I DMP 5V DET I Power voltage detection signal input terminal 31 O USB RXD O DMP RXD O Serial data output to the DMPORT connector 32 AVCC Power supply terminal 3 1V 33 I TU DO I Serial data input from the AM FM DET...

Page 46: ...iquid crystal display 63 64 SEG0 SEG1 O Segment drive signal output to the liquid crystal display 65 VCC Power supply terminal 3 1V 66 VSS Ground terminal 67 to 89 SEG2 to SEG24 O Segment drive signal output to the liquid crystal display 90 VCC Power supply terminal 3 1V 91 VSS Ground terminal 92 X1 I Main system clock output terminal 6 MHz 93 X0 O Main system clock input terminal 6 MHz 94 to 100 ...

Page 47: ... mean standardized parts so they may have some difference from the original one Items marked are not stocked since they are seldom required for routine ser vice Some delay should be anticipated when ordering these items The mechanical parts with no reference number in the exploded views are not sup plied Color Indication of Appearance Parts Ex ample KNOB BALANCE WHITE RED R R Parts of Color Cabine...

Page 48: ...WINDOW EC78P UK 55 A 1452 956 A FRONT PANEL ASSY EC68P US 55 A 1452 957 A FRONT PANEL ASSY EC68P AUS 55 A 1418 862 A PANEL ASSY FRONT EC78P UK 55 A 1418 863 A PANEL ASSY FRONT EC78P US CND 56 4 951 620 01 SCREW 2 6X8 BVTP 57 1 835 338 21 CABLE FLEXIBLE FLAT 31 CORE 58 3 297 298 01 SHEET RM 59 A 1379 659 A PANEL BOARD COMPLETE EC78P US CND 59 A 1379 717 A PANEL BOARD COMPLETE EC68P US 59 A 1426 107...

Page 49: ...1 769 744 81 CORD POWER EC78P UK 0 106 1 834 967 21 CORD POWER EC68P AUS 0 106 1 834 978 11 CORD POWER EC68P US EC78P US CND 107 1 834 181 21 CABLE FLEXIBLE FLAT 21 CORE EC78P UK 107 1 835 334 21 CABLE FLEXIBLE FLAT 21 CORE EC68P EC78P US CND 108 1 832 666 21 CABLE FLEXIBLE FLAT 5 CORE EC68P EC78P US CND 109 3 229 336 11 SCREW BVWH TAPPING EC78P UK M601 1 787 400 11 D C FAN EC68P EC78P UK M601 1 7...

Page 50: ...POWER EC68P US 0 PT004 1 445 343 11 TRANSFORMER POWER EC78P UK 0 PT004 1 445 345 11 TRANSFORMER POWER EC78P US CND 1 7 685 647 79 SCREW BVTP 3X10 TYPE2 IT 3 3 7 685 880 09 SCREW BVTT 4X6 S 4 7 685 645 79 SCREW BVTP 3X6 TYPE2 IT 3 Ref No Part No Description Remark Ref No Part No Description Remark 7 4 MAIN SECTION 151 152 154 154 153 not supplied not supplied not supplied 4 4 4 1 1 1 1 1 1 1 1 1 PT...

Page 51: ...emark Ref No Part No Description Remark 0 206 A 4735 357 A BASE ASSY OP KSM 213D 207 1 832 404 21 CABLE FLEXIBLE FLAT 16 CORE 208 A 1217 914 A CD BOARD COMPLETE S201 1 771 853 11 SWITCH DETECTION LIMIT 7 5 3 CD MECHANISM SECTION EC78P UK CDM88A K6BD90 WOD 206 including sled motor M402 spindle motor M401 207 208 S201 sled motor M402 spindle motor M401 203 203 204 204 204 204 202 202 205 205 201 not...

Page 52: ... 404 21 CABLE FLEXIBLE FLAT 16 CORE 258 A 1217 914 A CD BOARD COMPLETE S201 1 771 853 11 SWITCH DETECTION LIMIT Ref No Part No Description Remark Ref No Part No Description Remark 7 6 1 CD MECHANISM SECTION EXCEPT EC78P UK CDM77B K6BD90 WOD not supplied not supplied not supplied MOTOR board 251 252 255 254 253 253 255 254 255 255 S201 sled motor M402 257 256 including sled motor M402 spindle motor...

Page 53: ...1 ELECT CHIP 100uF 20 10V C202 1 128 995 21 ELECT CHIP 100uF 20 10V C204 1 164 360 11 CERAMIC CHIP 0 1uF 16V C205 1 164 360 11 CERAMIC CHIP 0 1uF 16V C206 1 165 908 11 CERAMIC CHIP 1uF 10 10V C207 1 165 908 11 CERAMIC CHIP 1uF 10 10V C301 1 164 360 11 CERAMIC CHIP 0 1uF 16V C302 1 137 710 91 CERAMIC CHIP 10uF 20 6 3V C303 1 137 710 91 CERAMIC CHIP 10uF 20 6 3V C306 1 128 995 21 ELECT CHIP 100uF 20...

Page 54: ... 5 1 10W R222 1 216 845 11 METAL CHIP 100K 5 1 10W R223 1 216 845 11 METAL CHIP 100K 5 1 10W R301 1 216 845 11 METAL CHIP 100K 5 1 10W R302 1 216 864 11 SHORT CHIP 0 R303 1 216 789 11 METAL CHIP 2 2 5 1 10W R304 1 216 789 11 METAL CHIP 2 2 5 1 10W R402 1 216 825 11 METAL CHIP 2 2K 5 1 10W R405 1 216 833 11 METAL CHIP 10K 5 1 10W R408 1 216 825 11 METAL CHIP 2 2K 5 1 10W R414 1 216 829 11 METAL CHI...

Page 55: ...K J491 1 566 822 51 JACK AUDIO IN J492 1 815 629 21 JACK PHONES RESISTOR R491 1 216 837 11 METAL CHIP 22K 5 1 10W R492 1 216 837 11 METAL CHIP 22K 5 1 10W KEY CD BOARD RESISTOR R407 1 216 825 11 METAL CHIP 2 2K 5 1 10W R408 1 216 826 11 METAL CHIP 2 7K 5 1 10W R409 1 216 828 11 METAL CHIP 3 9K 5 1 10W R410 1 218 867 11 METAL CHIP 6 8K 0 5 1 10W EC78P UK R411 1 216 835 11 METAL CHIP 15K 5 1 10W EC7...

Page 56: ...METAL CHIP 1 2K 5 1 10W R132 1 216 822 11 METAL CHIP 1 2K 5 1 10W R133 1 216 837 11 METAL CHIP 22K 5 1 10W R134 1 216 837 11 METAL CHIP 22K 5 1 10W R135 1 216 825 11 METAL CHIP 2 2K 5 1 10W R136 1 216 825 11 METAL CHIP 2 2K 5 1 10W R142 1 216 864 11 SHORT CHIP 0 R145 1 216 817 11 METAL CHIP 470 5 1 10W R146 1 216 817 11 METAL CHIP 470 5 1 10W A 1379 655 A MAIN BOARD COMPLETE EC78P US CND A 1379 71...

Page 57: ...1 CERAMIC CHIP 0 001uF 10 50V C700 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C703 1 162 966 11 CERAMIC CHIP 0 0022uF 10 50V C704 1 162 962 11 CERAMIC CHIP 470PF 10 50V C713 1 162 962 11 CERAMIC CHIP 470PF 10 50V C714 1 126 947 11 ELECT 47uF 20 35V C760 1 104 665 11 ELECT 100uF 20 25V C761 1 126 935 11 ELECT 470uF 20 16V C762 1 104 658 91 ELECT 100uF 20 10V C771 1 126 960 11 ELECT 1uF 20 50V C772 1 ...

Page 58: ...DIODE 1PS226 115 D806 8 719 062 51 DIODE 1PS226 115 GROUND TERMINAL ET601 1 537 771 21 TERMINAL BOARD GROUND ET602 1 537 771 21 TERMINAL BOARD GROUND FILTER FL801 1 760 393 11 FILTER CERAMIC FL803 1 236 711 21 FILTER BAND PASS IC IC602 6 712 055 01 IC BD3499FV E2 IC701 6 712 088 01 IC BD9701CP V5 IC770 8 759 278 58 IC NJM4558V TE2 IC801 6 708 840 01 IC LV23003VA JUMPER RESISTOR JR601 1 216 864 11 ...

Page 59: ...11 METAL CHIP 10K 5 1 10W R644 1 216 821 11 METAL CHIP 1K 5 1 10W R645 1 216 825 11 METAL CHIP 2 2K 5 1 10W R646 1 216 809 11 METAL CHIP 100 5 1 10W R647 1 216 797 11 METAL CHIP 10 5 1 10W R648 1 216 841 11 METAL CHIP 47K 5 1 10W R649 1 216 825 11 METAL CHIP 2 2K 5 1 10W R650 1 216 829 11 METAL CHIP 4 7K 5 1 10W R651 1 216 829 11 METAL CHIP 4 7K 5 1 10W R652 1 216 809 11 METAL CHIP 100 5 1 10W 0 R...

Page 60: ... 216 809 11 METAL CHIP 100 5 1 10W R810 1 216 829 11 METAL CHIP 4 7K 5 1 10W R811 1 216 845 11 METAL CHIP 100K 5 1 10W R812 1 216 841 11 METAL CHIP 47K 5 1 10W R813 1 216 853 11 METAL CHIP 470K 5 1 10W R814 1 216 837 11 METAL CHIP 22K 5 1 10W R815 1 216 833 11 METAL CHIP 10K 5 1 10W R816 1 216 821 11 METAL CHIP 1K 5 1 10W R817 1 216 841 11 METAL CHIP 47K 5 1 10W R818 1 216 833 11 METAL CHIP 10K 5 ...

Page 61: ...C357 1 126 965 91 ELECT 22uF 20 50V EC68P EC78P US CND CONNECTOR CN301 1 784 753 11 CONNECTOR FFC 31P CN302 1 784 735 11 CONNECTOR FFC 13P EC78P UK CN303 1 815 550 11 PIN CONNECTOR PWB 2P CN306 1 815 443 11 PIN CONNECTOR PWB 2P CN311 1 779 273 11 CONNECTOR FFC LIF NON ZIF 5P EC68P EC78P US CND DIODE D301 6 501 722 01 DIODE MAZ8043GMLS0 D302 6 501 817 01 DIODE MA2J1110GLS0 D303 6 500 334 01 DIODE M...

Page 62: ...1 10W EC78P UK R340 1 216 829 11 METAL CHIP 4 7K 5 1 10W EC78P UK R341 1 216 839 11 METAL CHIP 33K 5 1 10W EC78P UK R342 1 216 849 11 METAL CHIP 220K 5 1 10W EC78P UK R343 1 216 853 11 METAL CHIP 470K 5 1 10W EC78P UK R344 1 216 826 11 METAL CHIP 2 7K 5 1 10W EC78P UK R345 1 216 829 11 METAL CHIP 4 7K 5 1 10W EC78P UK R346 1 216 841 11 METAL CHIP 47K 5 1 10W EC78P UK R347 1 216 817 11 METAL CHIP 4...

Page 63: ...7 11 METAL CHIP 22K 5 1 10W EC68P EC78P US CND R443 1 216 833 11 METAL CHIP 10K 5 1 10W EC68P EC78P US CND R444 1 216 829 11 METAL CHIP 4 7K 5 1 10W EC68P EC78P US CND R445 1 216 829 11 METAL CHIP 4 7K 5 1 10W EC68P EC78P US CND R446 1 216 829 11 METAL CHIP 4 7K 5 1 10W R447 1 216 829 11 METAL CHIP 4 7K 5 1 10W R448 1 216 833 11 METAL CHIP 10K 5 1 10W ROTARY ENCODER S301 1 786 417 11 ENCODER ROTAR...

Page 64: ...ND 152 1 831 744 21 CABLE FLEXIBLE FLAT 5 CORE 153 1 835 276 21 CABLE FLEXIBLE FLAT 5 CORE EC78P 201 1 797 193 12 MECHANICAL CD DLM3A EC78P UK 0 206 A 4735 357 A BASE ASSY OP KSM 213D EC78P UK 207 1 832 404 21 CABLE FLEXIBLE FLAT 16 CORE EC78P UK 251 A 1242 967 A LOADING BK ASSY EC68P EC78P US CND 0 256 A 4735 357 A BASE ASSY OP KSM 213D EC68P EC78P US CND 257 1 832 404 21 CABLE FLEXIBLE FLAT 16 C...

Page 65: ...MEMO HCD EC68P EC78P 65 ...

Page 66: ...SION HISTORY Checking the version allows you to jump to the revised page Also clicking the version at the top of the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2008 03 New ...

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