Sony HCD-EC68P Service Manual
Sony HCD-EC68P Manual
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- Sony HCD-EC68P | Service Manual - Page 1
HCD-EC68P/EC78P SERVICE MANUAL Ver. 1.0 2008.03 US Model HCD-EC68P/EC78P Canadian Model UK Model HCD-EC78P Australian Model HCD-EC68P • HCD-EC68P is the amplifier, CD player and tuner section in MHC-EC68Pi. • HCD-EC78P is the amplifier, CD player and tuner section in MHC-EC78Pi. Photo : HCD-EC78P - Sony HCD-EC68P | Service Manual - Page 2
HCD-EC68P CHECK-OUT After correcting the original service problem, perform the following safety check before or RCA WT-540A. Follow the manufacturers' instructions to use these instruments. 2. A battery- SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY - Sony HCD-EC68P | Service Manual - Page 3
Mechanism Section (EC78P: UK) (CDM88A-K6BD90-WOD 51 7-6. 1 CD Mechanism Section (Except EC78P: UK) (CDM77B-K6BD90-WOD 52 8. ELECTRICAL PARTS LIST 53 HCD-EC68P/EC78P SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may - Sony HCD-EC68P | Service Manual - Page 4
HCD-EC68P/EC78P HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF Pull the tray by the hand. (EXCEPT EC78P: UK) boss Slide the boss by a - Sony HCD-EC68P | Service Manual - Page 5
C626 for electric shock prevention. 800 Ω/2W C626 C622 MAIN board 800 Ω/2W HCD-EC68P/EC78P MAIN board MODEL IDENTIFICATION - Back Panel - POWER VOLTAGE INDICATION Model EC68P: US/EC78P: US and Canadian models EC68P: Australian model EC78P: UK model Power Voltage Indication AC 120 V, 60 Hz AC - Sony HCD-EC68P | Service Manual - Page 6
SECTION 2 GENERAL This section is extracted from instruction manual. HCD-EC68P/EC78P: US and Canadian models: Basic Operations For details about the DIGITAL MEDIA PORT adaptor, refer to the operating instructions supplied with your DIGITAL MEDIA PORT adaptor. Changing the display To Press - Sony HCD-EC68P | Service Manual - Page 7
HCD-EC68P change the setting Start over from step 1. Tip manually. 3 Press +/− (or TUNING +/− on the Troubleshooting 1 Make sure the power cord and speaker cords are 2 Find your problem "LOCKED" appears. • Contact your Sony dealer or local authorized Sony service facility. Tuner Severe hum or noise - Sony HCD-EC68P | Service Manual - Page 8
HCD-EC68P/EC78P HCD not appear and the scanning does not stop, press TUNING MODE repeatedly until "MANUAL" appears, and then press +/− (or TUNING +/− on the unit) repeatedly the DIGITAL MEDIA PORT adaptor, refer to the operating instructions supplied with your DIGITAL MEDIA PORT adaptor. remote, - Sony HCD-EC68P | Service Manual - Page 9
HCD-EC68P change the setting Start over from step 1. Tip manually. 3 Press +/− (or TUNING +/− on the Troubleshooting 1 Make sure the power cord and speaker cords are 2 Find your problem "LOCKED" appears. • Contact your Sony dealer or local authorized Sony service facility. Tuner Severe hum or noise - Sony HCD-EC68P | Service Manual - Page 10
HCD-EC68P/EC78P SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW SET 3-2. SIDE PANEL (L)/(R) (Page 11) 3-3. PANEL (TOP) (Page 11) 3-5. FRONT PANEL BLOCK (EC78P: UK) (Page 12) 3-4. MAIN BOARD (Page 12) 3-6. FRONT PANEL BLOCK (EC68P/EC78P: US, - Sony HCD-EC68P | Service Manual - Page 11
Note: Follow the disassembly procedure in the numerical order given. 3-2. SIDE PANEL (L)/(R) two screws (BVTP3 × 10) HCD-EC68P/EC78P four screws (case3 TP) side panel (L) two screws (BVTP3 × 10) side panel (R) four screws (case3 TP) 3-3. PANEL (TOP) panel (top) two claws - Sony HCD-EC68P | Service Manual - Page 12
HCD-EC68P/EC78P 3-4. MAIN BOARD RH MAIN board RG two screws (BVTP3 × 6) connector (CN151) (EC78P) flexible flat cable (5 core) (CN603) flexible flat cable (5 core) (CN602) (EC78P) RE - Sony HCD-EC68P | Service Manual - Page 13
/EC78P: US, Canadian) flexible flat cable (11 core) (CN609) flexible flat cable (31 core) (CN803) front panel block HCD-EC68P/EC78P boss door (1 CD) flexible flat cable (5 core) (CN001) flexible flat cable (9 core) (CN605) pull the tray by hand. two screws (BVTP3 × 10) 3-7. BACK - Sony HCD-EC68P | Service Manual - Page 14
HCD-EC68P/EC78P 3-8. 3 CD MECHANISM BLOCK (EC78P: UK) flexible flat cable (21 core) (MAIN board: CN608/ CD board: CN201) 3 CD mechanism block flexible flat cable (13 core) - Sony HCD-EC68P | Service Manual - Page 15
flexible flat cable (21 core) (CN201) 1 CD mechanism block flexible flat cable (5 core) (CN001) HCD-EC68P/EC78P connector (CN053) two screws (BVTP4 × 12) 3-11. BASE UNIT (EC68P/EC78P: US, Canadian) floating screw insulator two floating screws two springs (insulator) insulator - Sony HCD-EC68P | Service Manual - Page 16
HCD-EC68P/EC78P 3-12. BELT (EC68P/EC78P: US, Canadian) position of belt belt claw belt tray (AU) claw 3-13. BELT (EC78P: UK) position of belt belt belt cover four screws two belts (DLM3A) 16 - Sony HCD-EC68P | Service Manual - Page 17
3-14. OP BASE ASSY (KSM-213D) HCD-EC68P/EC78P op base assy (KSM-213D) Remove four solders. flexible flat cable (16 core) (CN301) CD board 17 - Sony HCD-EC68P | Service Manual - Page 18
HCD-EC68P/EC78P SECTION 4 TEST MODE COLD RESET The cold reset clears all data including preset data stored in the memory to initial conditions. Execute this mode - Sony HCD-EC68P | Service Manual - Page 19
HCD-EC68P/EC78P [CD SERVO TEST MODE] This mode can check the servo system operations of the optical pick-up system (= optical unit + CD board). Note1: Do - Sony HCD-EC68P | Service Manual - Page 20
HCD-EC68P/EC78P CD SERVICE MODE This mode can move the SLED of the optical pick- 08: The disc chucking-release completion operation is in progress. 4 It indicates the operation during which the trouble has occurred. 00 : Waiting for the operation. 10 to 13 : The disc EJECT operation is in progress - Sony HCD-EC68P | Service Manual - Page 21
HCD-EC68P/EC78P 3 It indicates the on-going processing of optical pick-up system (= optical unit + BD board) when the trouble has MANUAL SEARCH operation is in progress. 0C: The PAUSE - MANUAL SEARCH operation is in progress. 4 It indicates the operation that is being processed when the trouble - Sony HCD-EC68P | Service Manual - Page 22
HCD-EC68P/EC78P SECTION 5 ELECTRICAL ADJUSTMENTS CD SECTION Note: 1. CD Block is basically constructed to operate without adjustment. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise - Sony HCD-EC68P | Service Manual - Page 23
HCD-EC68P/EC78P AM FREQUENCY COVERAGE ADJUSTMENT (Except EC78P: UK model) Adjustment Part Frequency Display Reading on Digital Voltmeter L801 530 kHz 1.5 ± 0.1 V Confirmation 1,710 kHz 8 ± 0.5 V AM - Sony HCD-EC68P | Service Manual - Page 24
HCD-EC68P/EC78P Adjustment Location and Connecting Points: - MAIN Board (Component Side) - L804 AM Tracking Adjustment L801 FM Frequency Coverage Adjustment L802 FM Detector Adjustment L803 FM - Sony HCD-EC68P | Service Manual - Page 25
L-OUT 12 R-OUT 13 R-CH TUNER-L A (EC78P: UK) MOTOR DRIVE Q311 - 318 CD MECHANISM DECK M1+ M1M2+ M2- SW1 SW3 SW2 I-CHACK I-STOCK I-OPEN I-CLOSE (EC68P/EC78P: US, Canadian) MOTOR DRIVER IC303 M M001 (LOADING) OPEN CLOSE S001 DISC TRAY OPEN/CLOSE DETECT • R-ch is omitted due to same as L-ch - Sony HCD-EC68P | Service Manual - Page 26
PATH : FM : CD PLAY : AUDIO IN : DMPORT • Abbreviation AUS : Australian CND : Canadian PT003 (EC68P) PT004 (EC78P) MAIN POWER TRANSFORMER RY001 (EC68P: US/EC78P) RY002 (EC68P: AUS) PT001 (EC68P: US/EC78P) PT002 (EC68P: AUS) SUB POWER TRANSFORMER RELAY DRIVE Q619 (AC IN) HCD-EC68P/EC78P 26 26 - Sony HCD-EC68P | Service Manual - Page 27
FM f : AM J : CD PLAY i : AUDIO IN g : DMPORT • Abbreviation AUS : Australian model CND : Canadian model • Circuit Boards Location PANEL board KEY POWER board MAIN board HCD-EC68P/EC78P HI AMP board (EC78P) LOW AMP board KEY CD board JACK board DMP board PT board CD board REG board MOTOR board - Sony HCD-EC68P | Service Manual - Page 28
HCD-EC68P/EC78P 6-3. PRINTED WIRING BOARD - CD Board - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. 1 2 3 4 5 6 7 8 9 C206 C204 21 R202 M MAIN BOARD CN608 (Page 30) C303 C302 F OPTICAL PICK-UP BLOCK (KSM-213DCP) 11 1-872-135- (11) HCD-EC68P/EC78P 28 28 - Sony HCD-EC68P | Service Manual - Page 29
SCHEMATIC DIAGRAM - CD Board - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description. HCD-EC68P/EC78P OPTICAL PICK-UP BLOCK (KSM-213DCP) M401 (SPINDLE) M M402 (SLED) M CN301 16P SPSP+ SL+ SL- SPSP+ SL+ SL- Q301 2SA2119K C301 AUTOMATIC - Sony HCD-EC68P | Service Manual - Page 30
HCD-EC68P/EC78P • Semiconductor Location Ref. No. Location D601 E-2 D602 E-6 D603 E-3 D604 G-3 D605 D-5 D606 E-6 D607 G-5 D608 F-5 D609 G-5 D610 F-5 D611 H-6 D612 H-6 D614 B-6 D615 D-7 , 12 1-875-502- (11, 12) DMP BOARD (CONDUCTOR SIDE) A901 1-875-502- 11, 12 (11, 12) I HCD-EC68P/EC78P 30 30 - Sony HCD-EC68P | Service Manual - Page 31
HCD-EC68P/EC78P 6-6. SCHEMATIC DIAGRAM - MAIN Section (1/3) - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 A M M601 (FAN) B (EC78P) R605 ∗ W610 (Page 38) 1 AUDIO-L 2 A-GND 3 AUDIO-R 4 HP-GND 5 HP-L 6 HP-R 7 AMP-ON 8 SP-RELAY 9 GND C JACK BOARD (Page 38) HCD-EC68P/EC78P 31 31 - Sony HCD-EC68P | Service Manual - Page 32
24 25 26 27 28 3.6 3.3 3.3 7.4 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 0.022 C674 0.047 C638 0.047 C637 0.047 C634 0.047 C633 O-CD-ON CD-AVR K HCD-EC68P/EC78P 1 L1 MAIN BOARD (1/3) 2 (Page 3 31) C663 1 50V R751 5.6k R750 4.7k R749 4.7k R753 5.6k C664 1 50V C684 - Sony HCD-EC68P | Service Manual - Page 33
1 50V R785 100k R770 0 E C760 100 25V C761 470 16V R763 1k Q762 DTC114EKA C775 47 10V R780 4.7k C791 0.01 R786 100k R784 100k HCD-EC68P/EC78P 9 10 11 12 DMP BOARD CN902 11P R- 11 R+ 10 L- 9 L+ 8 DGND 7 DMP-DET 6 DMP-TXD 5 DMP-RXD 4 VBUS(5V) 3 VBUS(5V) 2 PGND 1 R906 0 R905 0 R904 - Sony HCD-EC68P | Service Manual - Page 34
HCD-EC68P/EC78P HCD-EC68P/EC78P 6-9. PRINTED WIRING BOARD - HI AMP Board (EC78P) - • See page 27 for Circuit Boards Location. • 1 2 3 HI AMP BOARD : Uses unleaded solder. 4 A E MAIN BOARD CN632 (Page - Sony HCD-EC68P | Service Manual - Page 35
C124 1 R142 C105 IC101 IC102 (EC68P/EC78P: UK) (EC78P: US,CND 13 14 15 (EC68P/EC78P: UK) (EC78P: US, CND) IC101 POWER AMP IC101 STK433-060 (EC68P) STK433-070 (EC78P EC68P) 22k (EC78P) ∗R103, 104 220 (EC78P: US, CND) 1.8k (EC78P: UK) 3.3k (EC68P ∗C119, 120 100 50V (EC68P) 100 63V (EC78P) R101 - Sony HCD-EC68P | Service Manual - Page 36
HCD-EC68P/EC78P HCD-EC68P/EC78P • Semiconductor Location Ref. No. Location D301 D-4 D302 D-2 D303 D-3 D304 C-4 D305 E-5 D306 E-2 D307 E-3 IC301 JW359 21 B KEY POWER R434 R435 JW379 R305 Q301 JW336 C354 JW339 X301 (EC68P:AUS/EC78P:UK) C338 JW338 JW348 BOARD W401 R306 (Page 38) BE - Sony HCD-EC68P | Service Manual - Page 37
DIAGRAM - PANEL Board - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description. HCD-EC68P/EC78P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PANEL BOARD A CN301 31P TP301 R301 100 O-TU-CE 1 TP302 R302 100 O-TU-DI - Sony HCD-EC68P | Service Manual - Page 38
0.1 J491 AUDIO IN J492 PHONES REG BOARD F IC601 +9V REGULATOR IC601 TA7809S 17.1 1I 8.9 GO3 2 W610 3P C698 G 0.1 3 OUT 2 GND D 1 IN MAIN BOARD (1/3) (Page 31) HCD-EC68P/EC78P 38 38 - Sony HCD-EC68P | Service Manual - Page 39
- IC101 JB (RFi) (CD play mode) - MAIN Board - XB IC801 RM (XIN) HCD-EC68P/EC78P - PANEL Board - FB IC301 RG (X1A) 0.5 to 1.3 Vp-p 200 mV/DIV, 500 166 ns 1 V/DIV, 50 ns/DIV 6-18. SCHEMATIC DIAGRAM - MOTOR Board (EC68P/EC78P: US, Canadian models) - M001 (LOADING) S001 CD TRAY OPEN/CLOSE DETECT - Sony HCD-EC68P | Service Manual - Page 40
HCD-EC68P/EC78P HCD-EC68P/EC78P 6-19. PRINTED WIRING BOARD - PT Board - • See page 27 for Circuit Boards Location. • 1 2 3 4 : Uses unleaded solder. 5 PT BOARD A (EC68P:AUS) JW009 JW004 JW016 B (AC IN) C (EC68P:AUS) JW007 (EC68P:US/EC78P) JW008 JW011 D (EC68P:US/EC78P) RY001 (EC68P - Sony HCD-EC68P | Service Manual - Page 41
6-20. SCHEMATIC DIAGRAM - PT Board - 1 2 3 PT BOARD A B C D E (AC IN) F CN053 3P LIVE 1 NEUTRAL 3 G 4 5 6 (EC68P: US/EC78P) RY001 RY002 JW008 JW007 (EC68P:AUS) JW009 JW004 (EC68P: AUS) HCD-EC68P/EC78P 7 8 9 10 11 12 13 PT001 SUB POWER TRANSFORMER 5 4 6 3 7 2 8 1 9 - Sony HCD-EC68P | Service Manual - Page 42
HCD-EC68P/EC78P • IC Block Diagrams - CD Board - IC201 TK63115SCL-G@GT VIN 1 GND 2 D2 8 SEL2 9 SEL1 10 VOL1 11 VOL2 12 TC2 13 TC1 14 INPUT SELECTOR INVERTER VOLUME INPUT GAIN TREBLE/ BASS HCD-EC68P/EC78P VCC OUT GND INV STBY VREF OUT2 RNF OUT1 VM VCC FIN GND RIN 5 VOUT 4 NC IC401 BA5826SFP-E2 - Sony HCD-EC68P | Service Manual - Page 43
HCD-EC68P/EC78P • IC Pin Function Description CD BOARD IC101 TC94A70FG-006 (D, HZ (CD-MP3 PROCESSOR) Pin No. Pin Name I/O Description 1 AVSS3 - Ground terminal 2 RFZi I RF ripple - Sony HCD-EC68P | Service Manual - Page 44
HCD-EC68P/EC78P Pin No. 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 - Sony HCD-EC68P | Service Manual - Page 45
HCD-EC68P/EC78P PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER) Pin No. Pin Name I/O Description 1 SEG32 O Segment drive signal output to the liquid crystal display 2 O-AMP-ON O - Sony HCD-EC68P | Service Manual - Page 46
HCD-EC68P/EC78P Pin No. Pin Name I/O Description 57 O-TU-DI O Serial data output to the FM/AM DET 58 VLCD - Terminal for doubler circuit capacitor connection - Sony HCD-EC68P | Service Manual - Page 47
SECTION 7 EXPLODED VIEWS HCD-EC68P/EC78P Note: • -XX and -X 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 service. Some delay should be anticipated when ordering these items. • The - Sony HCD-EC68P | Service Manual - Page 48
HCD-EC68P/EC78P 7-2. FRONT PANEL SECTION not supplied (KEY POWER board) 56 EC78P: US, CND) 54 3-276-198-71 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) Ref. No. 55 56 57 Part - Sony HCD-EC68P | Service Manual - Page 49
HCD-EC68P/EC78P 7-3. CHASSIS SECTION main section #1 (EC78P) 105 105 105 M601 #2 #2 102 " 106 0 106 107 107 1-834-967-21 1-834-978-11 1-834-181-21 1-835-334-21 CORD, POWER (EC68P: AUS) CORD, POWER (EC68P: US/EC78P: US, CND) CABLE, FLEXIBLE FLAT (21 CORE) (EC78P: UK) CABLE, FLEXIBLE FLAT (21 - Sony HCD-EC68P | Service Manual - Page 50
HCD-EC68P/EC78P 7-4. MAIN SECTION (EC78P) 153 not supplied (HI AMP board) not supplied PT004 Part No. 1-445-346-11 1-445-476-11 1-445-343-11 Description Remark TRANSFORMER, POWER (EC68P: AUS) TRANSFORMER, POWER (EC68P: US) TRANSFORMER, POWER (EC78P: UK) 0 PT004 #1 #3 #4 1-445-345-11 7-685- - Sony HCD-EC68P | Service Manual - Page 51
7-5. 3 CD MECHANISM SECTION (EC78P: UK) (CDM88A-K6BD90-WOD) HCD-EC68P/EC78P not supplied 201 not supplied 202 202 204 206 (including sled motor (M402), spindle motor (M401)) 204 204 203 205 spindle motor (M401) 203 - Sony HCD-EC68P | Service Manual - Page 52
HCD-EC68P/EC78P 7-6. 1 CD MECHANISM SECTION (EXCEPT EC78P: UK) (CDM77B-K6BD90-WOD) 252 not supplied not supplied 251 255 spindle motor (M401) 254 253 S201 not supplied ( - Sony HCD-EC68P | Service Manual - Page 53
SECTION 8 ELECTRICAL PARTS LIST HCD-EC68P/EC78P CD Note: • Due to standardization, replacements from the original one. • Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • CAPACITORS uF: μF • COILS uH: - Sony HCD-EC68P | Service Manual - Page 54
HCD-EC68P/EC78P CD DMP HI AMP Ref. No. Part No. Description R113 1-216-833-11 METAL CHIP 10K R114 1-216-833-11 METAL CHIP 10K R118 1- - Sony HCD-EC68P | Service Manual - Page 55
HCD-EC68P/EC78P HI AMP JACK KEY CD KEY POWER LOW AMP Ref. No. Part No. 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 - Sony HCD-EC68P | Service Manual - Page 56
HCD-EC68P/EC78P LOW AMP MAIN Ref. No. Part No. Description < CONNECTOR > CN102 1-784-766-11 CONNECTOR 1uF 3300uF 3300uF 2200uF 0.1uF 100V 20% 63V (EC78P: US, CND) 20% 50V (EC78P: UK) 20% 50V (EC68P) 100V C626 1-114-471-51 ELECT C626 1-126-974-11 ELECT C626 1-128-550-11 ELECT C627 1-126-943-11 - Sony HCD-EC68P | Service Manual - Page 57
HCD-EC68P/EC78P MAIN Ref. No. Part No. Description C631 C632 C633 1-126-933-11 -11 CERAMIC CHIP 0.0047uF 10% 50V (EC68P: AUS/EC78P: UK) C814 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V (EC68P: US/EC78P: US, CND) C815 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V (EC68P: AUS/EC78P: UK) C815 1-162-970 - Sony HCD-EC68P | Service Manual - Page 58
HCD-EC68P/EC78P MAIN Ref. No. Part No. Description C847 1-100-566-91 CERAMIC 01 DIODE MAZ8082GMLS0 D628 6-501-817-01 DIODE MA2J1110GLS0 D629 8-719-063-79 DIODE 1N4002B (EC68P) D630 8-719-063-79 DIODE 1N4002B (EC68P) D631 6-501-817-01 DIODE MA2J1110GLS0 D701 8-719-079-47 DIODE RK36LF-A4 D791 - Sony HCD-EC68P | Service Manual - Page 59
HCD-EC68P/EC78P MAIN Ref. No. Part No. Description R601 R603 R604 R605 R605 < Description R641 1-249-403-11 CARBON 68 5% 1/10W 5% 1/10W 5% 1/10W 5% 1/10W (EC78P: US, CND) 5% 1/10W (EC68P/EC78P: UK) 5% 1/10W (EC78P) 5% 1/10W (EC78P) 5% 1/10W (EC78P) 5% 1/10W 5% 1/10W R642 R643 R644 R645 R646 - Sony HCD-EC68P | Service Manual - Page 60
HCD-EC68P/EC78P MAIN MOTOR PANEL Ref. No. Part No. Description R731 1-216 EC78P: US, CND) PANEL BOARD, COMPLETE (EC68P: US) PANEL BOARD, COMPLETE (EC78P: UK) PANEL BOARD, COMPLETE (EC68P: AUS 5% 1/10W 5% 1/10W 5% 1/10W 5% 1/10W 2-649-178-01 PLATE, LIGHT GUIDE 2-649-179-01 SHEET (LCD) 2-665-175 - Sony HCD-EC68P | Service Manual - Page 61
HCD-EC68P/EC78P PANEL Ref. No. Part No. Description < CAPACITOR > Remark C301 6-711-556-01 8-759-598-69 IC MB90F831PF-G-SPE1 (for service) (EC78P: UK) IC MB90F831PF-G-SPE1 (for service) (EC68P/EC78P: US, CND) IC NJL24H400B-SA IC BA6956AN (EC68P/EC78P: US, CND) < JUMPER RESISTOR > JR301 1-216- - Sony HCD-EC68P | Service Manual - Page 62
HCD-EC68P/EC78P PANEL Ref. No. Q314 Q315 Part No. Description 8-729-024-43 TRANSISTOR 8-729-047-62 TRANSISTOR Remark 2SA1365-T112-1EF (EC78P: UK) 2SC3440-T12- - Sony HCD-EC68P | Service Manual - Page 63
HCD-EC68P/EC78P PANEL PT REG Ref. No. R386 R387 R389 Part No. 1-216- R448 1-216-829-11 METAL CHIP 1-216-829-11 METAL CHIP 1-216-829-11 METAL CHIP 1-216-833-11 METAL CHIP 4.7K 5% 1/10W (EC68P/EC78P: US, CND) 4.7K 5% 1/10W 4.7K 5% 1/10W 10K 5% 1/10W IC601 < IC > 8-759-231-56 IC TA7809S < - Sony HCD-EC68P | Service Manual - Page 64
HCD-EC68P/EC78P Ref. No. Part No. Description MISCELLANEOUS Remark 57 60 62 -400-11 1-787-631-11 LOADING (BK) ASSY (EC68P/EC78P: US, CND) BASE ASSY, OP (KSM-213D) (EC68P/EC78P: US, CND) CABLE, FLEXIBLE FLAT (16 CORE) (EC68P/EC78P: US, CND) D.C. FAN (EC68P/EC78P: UK) FAN, DC (EC78P: US, CND) - Sony HCD-EC68P | Service Manual - Page 65
MEMO HCD-EC68P/EC78P 65 - Sony HCD-EC68P | Service Manual - Page 66
HCD-EC68P/EC78P REVISION 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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SERVICE MANUAL
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
HCD-EC68P/EC78P
SPECIFICATIONS
COMPACT DISC RECEIVER
9-889-053-01
2008C05-1
©
2008.03
US Model
HCD-EC68P/EC78P
Canadian Model
UK Model
HCD-EC78P
Australian Model
HCD-EC68P
Ver. 1.0
2008.03
• HCD-EC68P is the ampli
fi
er, CD player and
tuner section in MHC-EC68Pi.
• HCD-EC78P is the ampli
fi
er, CD player and
tuner section in MHC-EC78Pi.
Photo : HCD-EC78P
Model Name Using Similar Mechanism
CDM77B-K6BD90-WOD
NEW
CDM88A-K6BD90-WOD
HCD-EC68
Mechanism Type
Except EC78P (UK)
CDM77B-K6BD90-WOD
EC78P (UK)
CDM88A-K6BD90-WOD
Base Unit Name
BU-K6BD90-WOD
Optical Pick-up Block Name
KSM-213DCP
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
Low channel
With 8 ohm loads, both channels driven, from 120 – 10,000 Hz;
60 watts per channel minimum RMS power, with no more than
0.7% total harmonic distortion from 250 milliwatts to rated output.
High channel
With 8 ohm loads, both channels driven, from 2,000 – 13,000 Hz;
60 watts per channel minimum RMS power, with no more than
0.7% total harmonic distortion from 250 milliwatts to rated output.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 6 ohm loads, both channels driven, from 120 – 10,000 Hz;
40 watts per channel minimum RMS power, with no more than
0.7% total harmonic distortion from 250 milliwatts to rated output.
section
HCD-EC78P: US and Canadian models
RMS output power (reference):
Low channel
95 W + 95 W (per channel at 8 Ω, 1 kHz, 10% THD)
High channel
95 W + 95 W (per channel at 8 Ω, 8 kHz, 10% THD)
HCD-EC68P
RMS output power (reference):
70 W + 70 W (per channel 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-noise ratio: More than 90 dB
Dynamic range: More than 88 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section:
Tuning range
North American model: 87.5 – 108.0 MHz (100 kHz step)
UK and Australian models: 87.5 – 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
North American model:
530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
Australian model:
UK model:
531 – 1,710 kHz (with 9 kHz tuning interval)
530 – 1,710 kHz (with 10 kHz tuning interval)
Intermediate frequency: 450 kHz
General
Power requirements:
North American model: AC 120 V, 60 Hz
UK model: AC 230 V, 50/60 Hz
UK model: 160 W
Australian model: AC 230 – 240 V, 50/60 Hz
Power consumption:
HCD-EC78P
USA model: 210 W
Canadian model: 270 VA
HCD-EC68P
110 W
Dimensions (w/h/d) (excl. speakers):
Approx. 200 × 306 × 415 mm
Mass (excl. speakers):
HCD-EC78P: US and Canadian models
Approx. 5.8 kg
HCD-EC68P
Approx. 4.7 kg
HCD-EC78P: UK model
Power output (rated):
Low channel
50 W + 50 W (at 8 Ω, 1 kHz, 1% THD)
High channel
50 W + 50 W (at 8 Ω, 8 kHz, 1% THD)
RMS output power (reference):
Low channel
70 W + 70 W (per channel at 8 Ω, 1 kHz, 10% THD)
High channel
70 W + 70 W (per channel at 8 Ω, 8 kHz, 10% THD)
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz
0.5 W (in Power Saving Mode)
HCD-EC78P: UK model
Approx. 6.1 kg
(HCD-EC78P °e United States model only)
(HCD-EC68P °e United States model only)