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Sony HCD-EC68P Service Manual

Sony HCD-EC68P Service Manual

Compact disc receiver
Table of Contents

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HCD-EC68P/EC78P
SERVICE MANUAL
Ver. 1.0 2008.03
• HCD-EC68P is the amplifi er, CD player and
tuner section in MHC-EC68Pi.
• HCD-EC78P is the amplifi er, CD player and
tuner section in MHC-EC78Pi.
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(HCD-EC78P The United States model only)
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:
(HCD-EC68P The United States model only)
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-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)
HCD-EC68P
RMS output power (reference):
70 W + 70 W (per channel at 6 Ω, 1 kHz, 10% THD)
Sony Corporation
9-889-053-01
2008C05-1
Audio Business Group
©
2008.03
Published by Sony Techno Create Corporation
Photo : HCD-EC78P
Model Name Using Similar Mechanism
Mechanism Type
Base Unit Name
Optical Pick-up Block Name

SPECIFICATIONS

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
λ
Laser: Semiconductor laser (
=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:
531 – 1,710 kHz (with 9 kHz tuning interval)
530 – 1,710 kHz (with 10 kHz tuning interval)
Intermediate frequency: 450 kHz
UK model:
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz
HCD-EC68P/EC78P
Canadian Model
Australian Model
CDM77B-K6BD90-WOD
NEW
CDM88A-K6BD90-WOD
HCD-EC68
Except EC78P (UK)
CDM77B-K6BD90-WOD
EC78P (UK)
CDM88A-K6BD90-WOD
BU-K6BD90-WOD
KSM-213DCP
General
Power requirements:
North American model: AC 120 V, 60 Hz
Australian model: AC 230 – 240 V, 50/60 Hz
UK model: AC 230 V, 50/60 Hz
Power consumption:
HCD-EC78P
USA model: 210 W
Canadian model: 270 VA
UK model: 160 W
0.5 W (in Power Saving Mode)
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-EC78P: UK model
Approx. 6.1 kg
HCD-EC68P
Approx. 4.7 kg
COMPACT DISC RECEIVER
US Model
UK Model
HCD-EC78P
HCD-EC68P

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Table of Contents
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Summary of Contents for Sony HCD-EC68P

  • Page 1: Specifications

    Canadian Model Ver. 1.0 2008.03 UK Model HCD-EC78P Australian Model HCD-EC68P • HCD-EC68P is the amplifi er, CD player and tuner section in MHC-EC68Pi. • HCD-EC78P is the amplifi er, CD player and tuner section in MHC-EC78Pi. Photo : HCD-EC78P CDM77B-K6BD90-WOD...
  • Page 2 LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC- TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 3: Table Of Contents

    HCD-EC68P/EC78P SECTION 1 SERVICING NOTES TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT SERVICING NOTES ..........The laser diode in the optical pick-up block may suffer electrostat- GENERAL ic break-down because of the potential difference generated by the ..............
  • Page 4 HCD-EC68P/EC78P HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF Pull the tray by the hand. (EC78P: UK) lever (EXCEPT EC78P: UK) boss gear Turn a gear by a driver till a lever falls down to the position of the figure.
  • Page 5 HCD-EC68P/EC78P CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION In checking the MAIN board, make a capacitor discharge of C622 and C626 for electric shock prevention. 800 Ω/2W MAIN board C626 C622 MAIN board 800 Ω/2W MODEL IDENTIFICATION – Back Panel –...
  • Page 6: General

    HCD-EC68P/EC78P SECTION 2 This section is extracted GENERAL from instruction manual. HCD-EC68P/EC78P: US and Canadian models: Basic Operations Adjusting the sound Listening to the radio Using optional audio components Select “TUNER FM” or “TUNER AM. ” To adjust the volume To connect an optional headphones ...
  • Page 7: Other Operations

    Use buttons on the remote to create your own program. Press DISPLAY  to display the clock. If the issue persists, contact your nearest Sony dealer. the clock is not set. Press FUNCTION +/−  repeatedly to select the CD While holding down TUNING + ...
  • Page 8: Basic Operations

    HCD-EC68P/EC78P HCD-EC78P: UK model: Basic Operations Adjusting the sound Listening to the radio Using optional audio components Select “TUNER FM” or “TUNER AM. ” To adjust the volume To connect an optional headphones  Press FUNCTION +/− (or FUNCTION on the unit) Press VOLUME +/−...
  • Page 9 Use buttons on the remote to create your own program.  Press DISPLAY to display the clock. If the issue persists, contact your nearest Sony dealer. Press FUNCTION +/− (or FUNCTION on the unit) the clock is not set. ...
  • Page 10: Disassembly

    HCD-EC68P/EC78P SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. SIDE PANEL (L)/(R) (Page 11) 3-3. PANEL (TOP) (Page 11) 3-7. BACK PANEL 3-5. FRONT PANEL 3-4. MAIN BOARD 3-6. FRONT PANEL BLOCK...
  • Page 11: Side Panel (L)/(R)

    HCD-EC68P/EC78P Note: Follow the disassembly procedure in the numerical order given. 3-2. SIDE PANEL (L)/(R) two screws (BVTP3 × 10) two screws (BVTP3 × 10) four screws (case3 TP) side panel (L) side panel (R) four screws (case3 TP) 3-3.
  • Page 12: Main Board

    HCD-EC68P/EC78P 3-4. MAIN BOARD connector (CN151) (EC78P) MAIN board flexible flat cable (5 core) two screws (CN603) (BVTP3 × 6) flexible flat cable (5 core) two screws (CN602) (EC78P) (BVTP3 × 10) (EC78P) connector (CN633) connector (CN601) two screws (BVTP3 × 10) screw (BVTP3 ×...
  • Page 13: Front Panel Block (Ec68P/Ec78P: Us, Canadian)

    HCD-EC68P/EC78P 3-6. FRONT PANEL BLOCK (EC68P/EC78P: US, Canadian) flexible flat cable (11 core) (CN609) flexible flat cable (31 core) (CN803) front panel block boss flexible flat cable (9 core) (CN605) pull the tray by hand. Slide the boss by a driver.
  • Page 14: Cd Mechanism Block (Ec78P: Uk)

    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 four screws flexible flat cable (BVTP3 × 10) (13 core) two tapes Note: When installing the CD mechanism section, install two tapes for prevention of noise.
  • Page 15: Cd Mechanism Block (Ec68P/Ec78P: Us, Canadian)

    HCD-EC68P/EC78P 3-10. 1 CD MECHANISM BLOCK (EC68P/EC78P: US, Canadian) PT block connector two screws (CN053) (BVTP4 × 12) three screws flexible flat cable (BVTP3 × 10) (21 core) (CN201) two screws (BVTP4 × 12) 1 CD mechanism block flexible flat cable (5 core) (CN001) 3-11.
  • Page 16: Belt (Ec68P/Ec78P: Us, Canadian)

    HCD-EC68P/EC78P 3-12. BELT (EC68P/EC78P: US, Canadian) position of belt belt belt claw claw tray (AU) 3-13. BELT (EC78P: UK) position of belt belt cover belt four screws two belts (DLM3A)
  • Page 17: Op Base Assy (Ksm-213D)

    HCD-EC68P/EC78P 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: Test Mode

    HCD-EC68P/EC78P SECTION 4 TEST MODE COLD RESET CD TRAY LOCK The cold reset clears all data including preset data stored in the This mode is for the antitheft of CD disc in shop. (not for trans- memory to initial conditions. Execute this mode when returning port) the set to the customer.
  • Page 19 HCD-EC68P/EC78P [CD SERVO TEST MODE] CD Servo Test Mode Tree: Higher layer Lower layer of menu hierarchy This mode can check the servo system operations of the optical S Curve Mode LD ON pick-up system (= optical unit + CD board).
  • Page 20 HCD-EC68P/EC78P CD SERVICE MODE Contents of “CDM Errors” Error display example This mode can move the SLED of the optical pick-up, and also can M 0 FF 11 42 turn the optical pick-up laser power on and off. Procedure: 1 2 3 4 1.
  • Page 21 HCD-EC68P/EC78P Key Operation: 3 It indicates the on-going processing of optical pick-up system [DISPLAY]: (= optical unit + BD board) when the trouble has occurred. The display changes in the following order when- 01: The CD SHIP mode processing is in progress.
  • Page 22: Electrical Adjustments

    HCD-EC68P/EC78P SECTION 5 ELECTRICAL ADJUSTMENTS 0 dB = 1 μV CD SECTION TUNER SECTION [AM] Note: Setting: 1. CD Block is basically constructed to operate without adjustment. FUNCTION: AM 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 MΩ impedance.
  • Page 23 HCD-EC68P/EC78P FM AUTO STOP CHECK AM FREQUENCY COVERAGE ADJUSTMENT (Except EC78P: UK model) Reading on Digital generator Adjustment Part Frequency Display Voltmeter L801 530 kHz 1.5 ± 0.1 V Confi rmation 1,710 kHz 8 ± 0.5 V 75 Ω AM FREQUENCY COVERAGE ADJUSTMENT...
  • Page 24 HCD-EC68P/EC78P Adjustment Location and Connecting Points: – MAIN Board (Component Side) – L801 FM Frequency L804 Coverage Adjustment AM Tracking Adjustment L802 FM Detector Adjustment L803 FM Frequency Coverage Adjustment L805 AM Tracking Adjustment – MAIN Board (Conductor Side) –...
  • Page 25: Diagrams

    HCD-EC68P/EC78P SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM - CD SERVO, TUNER Section - CN801 ANTENNA FM/AM BAND-PASS FILTER 36 FM RF-IN FM-MIX 8 FM IF-IN FM DET-OUT 22 MPX-IN L-OUT TUNER-L FL803 R-OUT R-CH L805 T801 TRACKING AM IF CF801...
  • Page 26: Block Diagram - Main Section

    HCD-EC68P/EC78P 6-2. BLOCK DIAGRAM - MAIN Section - J492 R-CH PHONES INPUT SELECTOR, ELECTRICAL VOLUME IC602 POWER AMP TB602 (EC68P) RY602 IC101 SPEAKER TUNER-L TUNER-L OUT-L (EC68P/EC78P: UK) IMPEDANCE IC102 – USE 6Ω (EC78P: US, CND) R-CH SPEAKER LOW FREQ.
  • Page 27 HCD-EC68P/EC78P THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Circuit Boards Location (In addition to this, the necessary note is printed in each block.) MAIN board For Printed Wiring Boards. For Schematic Diagrams. Note: Note: • X : Parts extracted from the component side.
  • Page 28: Printed Wiring Board - Cd Board

    HCD-EC68P/EC78P 6-3. PRINTED WIRING BOARD - CD Board - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. CD BOARD (CONDUCTOR SIDE) CD BOARD (COMPONENT SIDE) M401 (SPINDLE) S201 (LIMIT) C404 C403 R402 IC401 TP124 M402...
  • Page 29: Schematic Diagram - Cd Board

    HCD-EC68P/EC78P 6-4. SCHEMATIC DIAGRAM - CD Board - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description. (BX5BT/CBX1) R127 R126 C107 C136 R125 R120 R142 R139...
  • Page 30: Printed Wiring Boards - Main Section

    HCD-EC68P/EC78P • Semiconductor 6-5. PRINTED WIRING BOARDS - MAIN Section - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. Location Ref. No. Location (EC78P) D601 (EC78P) HI AMP HI AMP M601 LOW AMP (Page 35)
  • Page 31: Schematic Diagram - Main Section (1/3)

    HCD-EC68P/EC78P 6-6. SCHEMATIC DIAGRAM - MAIN Section (1/3) - MAIN BOARD (1/3) PROTECT CN601 Q601 KTA1266GR-AT R726 R725 R724 R672 TP601 16.6 JW750 JW751 JW752 VDD+ M601 TP602 D614 (FAN) Q603 R626 MA2J1110GLS0 R604 2SC3052F-T1-LF VDD+ 100k PROTECT 16.7 Q601, 602 10.8...
  • Page 32: Schematic Diagram - Main Section (2/3)

    HCD-EC68P/EC78P 6-7. SCHEMATIC DIAGRAM - MAIN Section (2/3) - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. L801 MAIN BOARD (2/3) AM FREQUENCY COVERAGE D801 C819 SVC347A-TL-E 470p L805 C820 C834 R837 AM TRACKING...
  • Page 33: Schematic Diagram - Main Section (3/3)

    HCD-EC68P/EC78P 6-8. SCHEMATIC DIAGRAM - MAIN Section (3/3) - • See page 42 for IC Block Diagrams. MAIN BOARD (3/3) IC B/D IC701 +5V REGULATOR MAIN IC701 BOARD IC BD9701CP-V5 (2/3) 5V-ON/TP-REC-MUTE (Page 32) C787 DMP-R R759 R769 C786 DMP-L...
  • Page 34: Printed Wiring Board - Hi Amp Board (Ec78P)

    HCD-EC68P/EC78P 6-9. PRINTED WIRING BOARD - HI AMP Board (EC78P) - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. HI AMP BOARD JW157 JW151 R164 JW154 C160 C159 R163 C157 D152 R162 C170 Q152 C169...
  • Page 35: Printed Wiring Board - Low Amp Board

    HCD-EC68P/EC78P 6-11. PRINTED WIRING BOARD - LOW AMP Board - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. LOW AMP BOARD CN102 D103 JW132 JW131 JW133 C109 R113 C110 C108 C107 C120 Q102 R112 C119...
  • Page 36: Printed Wiring Board - Panel Board

    HCD-EC68P/EC78P 6-13. PRINTED WIRING BOARD - PANEL Board - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location Ref. No. Location PANEL BOARD D301 D302 LCD301 SW303 - 305, D303 LIQDID CRYSTAL DISPLAY...
  • Page 37: Schematic Diagram - Panel Board

    HCD-EC68P/EC78P 6-14. SCHEMATIC DIAGRAM - PANEL Board - • See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description. LCD301 PANEL BOARD LIQUID CRYSTAL DISPLAY CN301 TP301 R301...
  • Page 38: Printed Wiring Boards - Key Section

    HCD-EC68P/EC78P 6-15. PRINTED WIRING BOARDS - KEY Section - 6-16. SCHEMATIC DIAGRAM - KEY Section - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. KEY CD BOARD PANEL BOARD CN303 KEY CD BOARD (Page 36)
  • Page 39: Printed Wiring Board - Motor Board (Ec68P/Ec78P: Us, Canadian Models)

    HCD-EC68P/EC78P 6-17. PRINTED WIRING BOARD - MOTOR Board (EC68P/EC78P: US, Canadian models) - • Waveforms • See page 27 for Circuit Boards Location. • : Uses unleaded solder. – CD Board – – MAIN Board – – PANEL Board –...
  • Page 40: Printed Wiring Board - Pt Board

    HCD-EC68P/EC78P 6-19. PRINTED WIRING BOARD - PT Board - • See page 27 for Circuit Boards Location. • : Uses unleaded solder. PT BOARD (EC68P:AUS) JW004 JW009 PT001 (EC68P:US/EC78P) (AC IN) PT002 (EC68P:AUS) SUB POWER TRANSFORMER (EC68P:AUS) (EC68P:AUS) (EC68P:US/EC78P) ∗...
  • Page 41: Schematic Diagram - Pt Board

    HCD-EC68P/EC78P 6-20. SCHEMATIC DIAGRAM - PT Board - PT BOARD C051 (EC68P: US/EC78P) PT001 SUB POWER TRANSFORMER (EC68P: US/EC78P) RY001 RY002 (EC68P:AUS) (EC68P:AUS) PT002 SUB POWER TRANSFORMER D051 D052 MC2836 MC2838-T112-1 D055 MC2838-T112-1 (EC68P: AUS) PT003 (EC68P) MAIN POWER TRANSFORMER CN051 ∗...
  • Page 42 HCD-EC68P/EC78P • IC Block Diagrams IC801 LV23003VA – CD Board – IC401 BA5826SFP-E2 IC201 TK63115SCL-G@GT 36 FM RF-IN AM RF-IN 35 GND2 VIN 1 VO1(–) 34 FMRF-OUT D.BUFF 33 VCC2 THERMAL & VO4(–) FM-MIX OVER CURRENT 32 FM-OSC VO1(+) D.BUFF...
  • Page 43 HCD-EC68P/EC78P • IC Pin Function Description CD BOARD IC101 TC94A70FG-006 (D, HZ (CD-MP3 PROCESSOR) Pin No. Pin Name Description AVSS3 Ground terminal RFZi RF ripple zero crossing signal input terminal RFRP RF ripple signal output terminal SBAD/RFDC Sub beam addition signal or RF peak detection signal output terminal...
  • Page 44 HCD-EC68P/EC78P Pin No. Pin Name Description DOUT (PO6) Digital audio data output terminal Not used AOUT (PO7) Audio data output terminal Not used BCK (PO8) Bit clock signal output terminal Not used LRCK (PO9) L/R sampling clock signal output terminal...
  • Page 45 HCD-EC68P/EC78P PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER) Pin No. Pin Name Description SEG32 Segment drive signal output to the liquid crystal display O-AMP-ON Relay drive signal output terminal (for speaker) O-POWER Main power on/off control signal output terminal "H": on...
  • Page 46 HCD-EC68P/EC78P Pin No. Pin Name Description O-TU-DI Serial data output to the FM/AM DET Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt- VLCD COM0, COM1, CMO2, 59 to 62 Common drive signal output to the liquid crystal display...
  • Page 47: Exploded Views

    HCD-EC68P/EC78P SECTION 7 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • Color Indication of Appearance Parts Ex- The components identifi ed by mark 0 they may have some difference from the ample: or dotted line with mark 0 are critical for original one.
  • Page 48: Front Panel Section

    HCD-EC68P/EC78P 7-2. FRONT PANEL SECTION not supplied (KEY POWER board) not supplied supplied not supplied not supplied (KEY CD board) not supplied (JACK HOLD board) not supplied (JACK board) DMP board Ref. No. Part No. Description Remark Ref. No. Part No.
  • Page 49: Chassis Section

    HCD-EC68P/EC78P 7-3. CHASSIS SECTION (EC78P) main section not supplied M601 not supplied (AC HOLD board) not supplied 3 CD mechanism section not supplied 1 CD mechanism section (EXCEPT EC78P: UK) (EC78P: UK) Ref. No. Part No. Description Remark Ref. No.
  • Page 50: Main Section

    HCD-EC68P/EC78P 7-4. MAIN SECTION (EC78P) not supplied not supplied not supplied (HI AMP board) not supplied (REG board) not supplied not supplied not supplied not supplied (LOW AMP board) PT003: EC68P/ PT004: EC78P not supplied not supplied (PT board) not supplied...
  • Page 51: Cd Mechanism Section (Ec78P: Uk) (Cdm88A-K6Bd90-Wod)

    HCD-EC68P/EC78P 7-5. 3 CD MECHANISM SECTION (EC78P: UK) (CDM88A-K6BD90-WOD) not supplied (including sled motor (M402), spindle motor (M401)) not supplied sled motor (M402) spindle motor (M401) S201 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-797-193-12...
  • Page 52: Cd Mechanism Section (Except Ec78P: Uk) (Cdm77B-K6Bd90-Wod)

    HCD-EC68P/EC78P 7-6. 1 CD MECHANISM SECTION (EXCEPT EC78P: UK) (CDM77B-K6BD90-WOD) not supplied not supplied (MOTOR board) not supplied (including sled motor (M402), spindle motor (M401)) spindle motor (M401) sled motor (M402) S201 Ref. No. Part No. Description Remark Ref. No.
  • Page 53: Electrical Parts List

    HCD-EC68P/EC78P SECTION 8 ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in • RESISTORS When indicating parts by reference num- the parts list may be different from the All resistors are in ohms. ber, please include the board name.
  • Page 54 HCD-EC68P/EC78P HI AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R113 1-216-833-11 METAL CHIP 1/10W < VIBRATOR > R114 1-216-833-11 METAL CHIP 1/10W X102 1-795-101-21 VIBRATOR, CERAMIC (16.9344MHz) R118 1-216-845-11 METAL CHIP 100K 1/10W ************************************************************...
  • Page 55 HCD-EC68P/EC78P HI AMP JACK KEY CD KEY POWER LOW AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > KEY CD BOARD ************* Q151 6-551-270-01 TRANSISTOR 2SA2026 Q152 6-551-270-01 TRANSISTOR 2SA2026 < RESISTOR >...
  • Page 56 HCD-EC68P/EC78P LOW AMP MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R132 1-216-822-11 METAL CHIP 1.2K 1/10W < CONNECTOR > R133 1-216-837-11 METAL CHIP 1/10W CN102 1-784-766-11 CONNECTOR, FFC 5P R134 1-216-837-11 METAL CHIP 1/10W...
  • Page 57 HCD-EC68P/EC78P MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C631 1-126-933-11 ELECT 100uF C713 1-162-962-11 CERAMIC CHIP 470PF C632 1-126-963-11 ELECT 4.7uF C714 1-126-947-11 ELECT 47uF C633 1-165-176-11 CERAMIC CHIP 0.047uF C760 1-104-665-11 ELECT 100uF...
  • Page 58 HCD-EC68P/EC78P MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C847 1-100-566-91 CERAMIC CHIP 0.1uF < FILTER > C848 1-164-156-11 CERAMIC CHIP 0.1uF FL801 1-760-393-11 FILTER, CERAMIC C850 1-164-156-11 CERAMIC CHIP 0.1uF FL803 1-236-711-21 FILTER, BAND PASS <...
  • Page 59 HCD-EC68P/EC78P MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R641 1-249-403-11 CARBON 1/4W < RESISTOR > R642 1-249-403-11 CARBON 1/4W R601 1-216-817-11 METAL CHIP 1/10W R643 1-216-833-11 METAL CHIP 1/10W R603 1-216-793-11 METAL CHIP 1/10W...
  • Page 60 HCD-EC68P/EC78P MAIN MOTOR PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R731 1-216-809-11 METAL CHIP 1/10W R823 1-216-833-11 METAL CHIP 1/10W R732 1-216-809-11 METAL CHIP 1/10W R824 1-216-817-11 METAL CHIP 1/10W R741 1-216-821-11 METAL CHIP...
  • Page 61 HCD-EC68P/EC78P PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < CAPACITOR > < DIODE > C301 1-164-156-11 CERAMIC CHIP 0.1uF D301 6-501-722-01 DIODE MAZ8043GMLS0 C302 1-126-964-11 ELECT 10uF D302 6-501-817-01 DIODE MA2J1110GLS0 C303 1-126-964-11 ELECT...
  • Page 62 HCD-EC68P/EC78P PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q314 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF R346 1-216-841-11 METAL CHIP 1/10W (EC78P: UK) (EC78P: UK) Q315 8-729-047-62 TRANSISTOR 2SC3440-T12-1F (EC78P: UK) R347 1-216-817-11 METAL CHIP 1/10W (EC78P: UK)
  • Page 63 HCD-EC68P/EC78P PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R386 1-216-821-11 METAL CHIP 1/10W R387 1-216-821-11 METAL CHIP 1/10W SW313 1-771-410-21 SWITCH, TACTILE (x) R389 1-216-821-11 METAL CHIP 1/10W SW314 1-771-410-21 SWITCH, TACTILE (FOLDER +) SWITCH, TACTILE (FOLDER −)
  • Page 64 HCD-EC68P/EC78P Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MISCELLANEOUS ************** 1-835-338-21 CABLE, FLEXIBLE FLAT (31 CORE) 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE) 1-835-336-21 CABLE, FLEXIBLE FLAT (11 CORE) 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE) (EC78P: UK)
  • Page 65 HCD-EC68P/EC78P MEMO...
  • 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 2008.03...

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