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Sony CFD-ZW755 Service Manual

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SERVICE MANUAL
Ver 1.2 2004.08
With SUPPLEMENT-1
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 3.2-ohm loads, both channel driven from 150 - 6,300 Hz; rated 1.6
W per channel-minimum RMS power, with no more than
10 % total harmonic distortion in AC operation.
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of about 200
mm from the objective lens surface on the optical pick-up
block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–1 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: 87.5 - 108 MHz
AM:530 - 1,710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Sony Corporation
9-927-694-13
Personal Audio Company
2004H02-1
Published by Sony Engineering Corporation
© 2004.08
CFD-ZW755
Model Name Using Similar Mechanism
CD
CD Machanism Type
Section
Optical Pick-up Type
Model Name Using Similar Machanism
TC
Section
Tape Transport Mechanism Type
SPECIFICATIONS
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 10,000 Hz
General
Speaker
Full range: 10 cm (4 in.) dia.,
3.2 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
For remote control:
3 V DC, 2 size AA (R6) batteries
CD RADIO CASSETTE-CORDER
US Model
CFD-ZW750/ZW770
KSM-213CDM
KSS-213C
NEW
MF-ZW755-117
– Continued on page 2 –

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  • Page 1 4-track 2 channel stereo W per channel-minimum RMS power, with no more than Fast winding time 10 % total harmonic distortion in AC operation. Approx. 120 s (sec.) with Sony cassette C-60 Frequency response Other Specifications TYPE I (normal): 80 - 10,000 Hz...

  • Page 2: Table Of Contents

    LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE pick-up block. Therefore, when checking the laser diode PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN emission, observe more than 30 cm away from the objective SUPPLEMENTS PUBLISHED BY SONY.

  • Page 3: Servicing Notes

    All manuals and user guides at all-guides.com SECTION 1 SERVICING NOTES SAFETY CHECK-OUT CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use After correcting the original service problem, perform the Chuck Plate Jig. following safety check before releasing the set to the customer : •...

  • Page 4: General

    All manuals and user guides at all-guides.com SECTION 2 This section is extracted from GENERAL instruction manual. Basic Operations Playing a CD Use these buttons for additional operations 6 PUSH OPEN/CLOSE POWER VOLUME PRESET TIME SET For hookup instructions, see pages 26 – 28. Do this Next time you want to listen to a CD, just press...
  • Page 5 All manuals and user guides at all-guides.com Playing a tape Use these buttons for additional operations POWER 0, ) VOLUME 0, ) For hookup instructions, see pages 26 – 28. Note Do this During playback, do not adjust the volume Turn VOLUME (Press press buttons on the Press p6 to open the tape...

  • Page 6: Disassembly

    All manuals and user guides at all-guides.com SECTION 3 DISASSEMBLY The equipment can be removed using the following procedure. Cabinet (Rear) Power board, Back up board, Battery board Cabinet (Front) CD block ASSY Control board Power key board, Mega bass board, sub ASSY Preset board, Volume board Key board...

  • Page 7: Cd Block Assy

    All manuals and user guides at all-guides.com 3-3. CD BLOCK ASSY 1 Screws (BVTP 3x12) 1 Screws (BVTP 3x12) 2 CN310 CD block ASSY 2 CN306 2 CN305 3 To S901 (CD door open/close) 2 Wire, parallel (23 core) (CN308) 2 CN311 Cabinet (front) sub ASSY 2 CN303...

  • Page 8: Power Key Board, Mega Bass Board, Preset Board, Volume Board

    All manuals and user guides at all-guides.com 3-5. POWER KEY BOARD, MEGA BASS BOARD, PRESET BOARD, VOLUME BOARD 1 Screws (BVTP 2.6x8) Power key board qs Screw 7 Screw (BVTP 2.6x8) (BVTP 2.6x8) 3 Screws (BVTP 2.6x8) Preset board Cabinet (front) sub ASSY Mega bass board 8 Claws Volume board...

  • Page 9: Rec Sw Board, Pb Board

    All manuals and user guides at all-guides.com 3-8. REC SW BOARD, PB BOARD 6 Screw 5 Remove solder (BVTP 3x10) PB board 3 Screw (BVTP 3x10) 1 CN304 Shield REC SW board 2 Remove solder Cabinet (front) sub ASSY Shield 3-9.

  • Page 10: Capstan/Reel Motor (M301), Belt

    All manuals and user guides at all-guides.com 3-10. CAPSTAN/REEL MOTOR (M301), BELT 1 Screws (+PTT 2x5) Chassis (sub) 5 Capstan/reel motor (M301) 3 Belt 1 Screws (+PTT 2x5) 4 Screws (M2.6x2.5) DECK ASSY, A 3 Belt 1 Screw (+PTT 2x5) DECK ASSY, B 3-11.

  • Page 11: Cd Board

    All manuals and user guides at all-guides.com 3-12. CD BOARD 3 Screws (BVTP 3x10) 3 Screws (BVTP 3x10) CD board 1 Wire, parallel (16 core) (CN701) 2 CN702 CD block ASSY 3-13. OPTICAL PICK-UP BLOCK 1 Screws (+PWH 2.6x10) 1 Screws (+PWH 2.6x10) Optical pick-up block Chassis, CD –...

  • Page 12: Adjustments

    All manuals and user guides at all-guides.com SECTION 4 ADJUSTMENTS 4-1. MECHANICAL ADJUSTMENTS 4-2. ELECTRICAL ADJUSTMENTS PRECAUTION TAPE SECTION 0 dB = 0.775V 1. Clean the following parts with a denatured-alcohol-moistened Standard Output level swab : Outout terminal SP OUT PHONES OUT record/playback head pinch roller...
  • Page 13 All manuals and user guides at all-guides.com • Repeat the procedures in each adjustment several times, and the TUNER SECTION 0 dB = 1µV frequency coverage and tracking adjustments should be finally • FM Section done by the trimmer capacitors. Setting : AM IF ADJUSTMENT RADIO BAND button : FM...
  • Page 14 All manuals and user guides at all-guides.com Adjustment Location : [MAIN BOARD] (Component side) L3 : AM Tracking Adjustment CT2 : AM Tracking Adjustment L4 : AM Frequency Coverage Adjustment JW13 VT (JW13) FM Tracking Adjustment L2 : FM Frequency Coverage Adjustment T2 : FM IF Adjustment T1 : AM IF Adjustment CD SECTION...

  • Page 15: Diagrams

    All manuals and user guides at all-guides.com SECTION 5 DIAGRAMS 5-1. EXPLANATION OF IC TERMINALS IC801 CXP83516-606Q (SYSTEM CONTROL) Pin No. Pin name Description C-SCOR/R-CNT CD SCOR input. Sircs receiver input. CD function output. C-MUT CD block mute output. C-SEN1 CD SENSE-1 input.
  • Page 16 All manuals and user guides at all-guides.com Circuit Boards Location CD MOTOR board CD board KEY board MAIN board CONTROL board POWER board BATTERY board POWER KEY board HEADPHONE board PRESET board BACK UP board PB board VOLUME board MEGA BASS board REC SW board –...

  • Page 17: Block Diagrams

    All manuals and user guides at all-guides.com 5-2. BLOCK DIAGRAMS • Signal path. : FM : AM : PB (DECK B) a : REC (DECK B) : PB (DECK A) : CD – 17 – – 18 – – 19 – –...

  • Page 18: Schematic Diagram (Main Section)

    All manuals and user guides at all-guides.com CFD-ZW755 5-3. SCHEMATIC DIAGRAM (MAIN SECTION) Refer to page 40 – 41 for IC Block Diagrams. Waveforms (MAIN SECTION) 247mVp-p 75kHz IC2 wa VOLT/DIV : 0.1 V AC TIME/DIV : 20 µsec (X-OUT) 31.4Vp-p...

  • Page 19: Printed Wiring Boards (Main Section)

    All manuals and user guides at all-guides.com CFD-ZW 5-4. PRINTED WIRING BOARDS (MAIN SECTION) Refer to page 16 Circuit Boards Location. Semiconductor Location Ref. No. Location Ref. No. CONTROL BOARD CONTROL BOARD CNJ801 CN803 [MAIN BOARD] (Page 30) (Page 29) [REC SW BOARD] Q101 Q102...

  • Page 20: Printed Wiring Boards (Control Section)

    All manuals and user guides at all-guides.com CFD-ZW755 5-5. PRINTED WIRING BOARDS (CONTROL SECTION) Refer to page 16 Circuit Boards Location. Semiconductor Location Ref. No. Location MAIN BOARD CD BOARD D801 CN703 CN308 D802 (Page 36) (Page 25) [PRESET BOARD]...

  • Page 21: Schematic Diagram (Control Section)

    All manuals and user guides at all-guides.com CFD-ZW 5-6. SCHEMATIC DIAGRAM (CONTROL SECTION) Refer to page 30 for Notes. Refer to page 30 for Waveforms. – 31 – – 32 – – 33 –...

  • Page 22: Printed Wiring Boards (Cd Section)

    All manuals and user guides at all-guides.com CFD-ZW755 5-7. PRINTED WIRING BOARDS (CD SECTION) Refer to page 16 Circuit Boards Location. Semiconductor Location Ref. No. Location MAIN BOARD D701 D702 CNJ307 D703 (Page 25) [CD BOARD] IC701 IC702 IC703 [CD MOTOR BOARD]...

  • Page 23: Schematic Diagram (Cd Section)

    All manuals and user guides at all-guides.com CFD-ZW 5-8. SCHEMATIC DIAGRAM (CD SECTION) Refer to page 42 – 43 for IC Block Diagrams. Waveforms (CD SECTION) (PLAY MODE) 0.9 – 1.5Vp-p IC701 ed VOLT/DIV : 0.5 V AC TIME/DIV : 1 µsec (RFO) (PLAY MODE) 0.6Vp-p...
  • Page 24 All manuals and user guides at all-guides.com IC Block Diagrams (MAIN SECTION) IC Block Diagrams (CD SECTION) IC701 CXA1992BR IC1 TA2149N IC301 TA2068N GND1 FM RF OUT FM RF VCC1 FM RF IN AM RF OUT LOGIC AM LOW CUT PD2 IV PD1 IV MONITOR...
  • Page 25 All manuals and user guides at all-guides.com IC703 CXD2589Q 59 58 57 56 54 53 52 51 50 SYSM SERIAL-IN INTERFACE LRCKI LRCK AVSS ASYO OVER SAMPLING DIGITAL FILTER ASYI ASYMMETRY AVDD DEMODULATOR CORRECTOR BIAS 3rd-ORDER AOUT1 NOISE SHAPER AIN1 AVDD LOUT1 AVSS...

  • Page 26: Exploded Views

    All manuals and user guides at all-guides.com SECTION 6 EXPLODED VIEWS NOTE : • -XX, -X mean standardized parts, so they • The mechanical parts with no reference The components identified by mark 0 may have some difference from the original number in the exploded views are not or dotted line with mark 0 are critical one.

  • Page 27: Front Cabinet Section

    All manuals and user guides at all-guides.com 6-2. FRONT CABINET SECTION LCD801 not supplied 64 65 not supplied 68 69 70 71 Supplied with VR801 Supplied with VR802 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3378-796-1 CABINET (FRONT) SUB ASSY 3-031-155-02 KNOB(2), PAUSE 3-033-111-01 HOLDER (B), CASSETTE...

  • Page 28: Cd Section

    All manuals and user guides at all-guides.com Ver 1.2 6-3. CD SECTION not supplied S901 KSM-213CDM Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 A-3322-589-A MAIN BOARD,COMPLETE 3-911-135-01 SCREW (2.6X10), (+PWH) TAPPING * 102 A-3322-588-A CD BOARD,COMPLETE * 112 1-790-242-11 WIRE, PARALLEL (FFC) (16 CORE)

  • Page 29: Tape Mechanism Section-1 (Mf-Zw755-117)

    All manuals and user guides at all-guides.com 6-4. TAPE MECHANISM SECTION-1 (MF-ZW755-117) M301 not supplied DECK ASSY, A DECK ASSY, B Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-025-846-01 LEVER (REC) M301 A-3328-913-A MOTOR ASSY (W) (CAPSTAN/REEL) 3-016-031-11 BELT (INCLUDING PULLEY) 3-343-251-01 SCREW (M2.6X2.5)

  • Page 30: Tape Mechanism Section-2 (Deck A) (Mf-Zw755-117)

    All manuals and user guides at all-guides.com 6-5. TAPE MECHANISM SECTION-2 (DECK A) (MF-ZW755-117) HP301 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-010-01 SPRING (S/P), TORSION * 213 3-008-591-01 SLIDER (PAUSE) 3-933-025-01 SPRING (P), TORSION 3-933-004-01 CLAW, REEL 3-040-857-01 LEVER (P) * 215...

  • Page 31: Tape Mechanism Section-3 (Deck A) (Mf-Zw755-117)

    All manuals and user guides at all-guides.com 6-6. TAPE MECHANISM SECTION-3 (DECK A) (MF-ZW755-117) S304 S305 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-182-01 SPRING, CASSETTE X-3373-572-1 REEL ASSY (N), T 3-932-995-01 GEAR (MID) X-3374-077-1 FLYWHEEL ASSY (W) X-3371-667-1 CLUTCH ASSY 3-932-993-01 CHASSIS, OUTSERT 3-932-997-01 GEAR (CAM)

  • Page 32: Tape Mechanism Section-4 (Deck B) (Mf-Zw755-117)

    All manuals and user guides at all-guides.com 6-7. TAPE MECHANISM SECTION-4 (DECK B) (MF-ZW755-117) HRP301 HE301 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-010-01 SPRING (S/P), TORSION * 312 3-008-587-01 SLIDER (STOP) 3-933-025-01 SPRING (P), TORSION * 313 3-008-591-01 SLIDER (PAUSE) 3-040-857-01 LEVER (P)

  • Page 33: Tape Mechanism Section-5 (Deck B) (Mf-Zw755-117)

    All manuals and user guides at all-guides.com 6-8. TAPE MECHANISM SECTION-5 (DECK B) (MF-ZW755-117) S307 S306 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-933-029-01 LEVER, ERASING PREVENTION X-3373-572-1 REEL ASSY (N), T 3-933-182-01 SPRING, CASSETTE X-3374-077-1 FLYWHEEL ASSY (W) 3-932-995-01 GEAR (MID) 3-932-993-01 CHASSIS, OUTSERT...

  • Page 34: Optical Pick-Up Section (Ksm-213Cdm)

    All manuals and user guides at all-guides.com 6-9. OPTICAL PICK-UP SECTION (KSM-213CDM) not supplied (INCLUDING M701) M701 M702 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref.

  • Page 35: Speaker Section

    All manuals and user guides at all-guides.com 6-10. SPEAKER SECTION not supplied SP901 (L-CH), SP902 (R-CH) supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3377-577-1 FRAME ASSY, NET 3-031-177-01 CABINET (REAR) (R), SPEAKER 3-031-182-11 RUBBER 3-033-107-01 CABINET (FRONT), SPEAKER SP901 1-529-245-11 SPEAKER (10cm) (L-CH)

  • Page 36: Electrical Parts List

    All manuals and user guides at all-guides.com SECTION 7 BACK UP BATT ELECTRICAL PARTS LIST NOTE : • Due to standardization, replacements in the • SEMICONDUCTORS In each case, u : µ , for example : The components identified by mark 0 parts list may be different from the parts or dotted line with mark 0 are critical uA..
  • Page 37 All manuals and user guides at all-guides.com Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C776 1-162-294-31 CERAMIC 1000PF R719 1-249-393-11 CARBON 1/4W C780 1-162-284-31 CERAMIC 150PF R720 1-249-430-11 CARBON 1/4W C781 1-162-292-31 CERAMIC 680PF R721 1-247-862-11 CARBON 1/4W C782...
  • Page 38 All manuals and user guides at all-guides.com CD MOTOR CONTROL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-639-678-12 CD MOTOR BOARD < DIODE > *************** D801 8-719-991-33 DIODE 1SS133T-77 < CONNECTOR > D802 8-719-059-97 LED L-34HD (OPR/BATT) CNP707 1-564-722-11 PIN, CONNECTOR (SMALL TYPE) 6P <...
  • Page 39 All manuals and user guides at all-guides.com CONTROL HEADPHONE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R837 1-249-425-11 CARBON 4.7K 1/4W 1-677-744-11 HEADPHONE BOARD R838 1-249-425-11 CARBON 4.7K 1/4W ***************** R839 1-249-441-11 CARBON 100K 1/4W R840 1-249-441-11 CARBON...
  • Page 40 All manuals and user guides at all-guides.com MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-126-959-11 ELECT 0.47uF C226 1-104-664-11 ELECT 47uF 1-127-888-21 CERAMIC 0.1uF C227 1-162-282-31 CERAMIC 100PF 1-162-215-31 CERAMIC 47PF 1-161-494-00 CERAMIC 0.022uF C232 1-130-485-00 MYLAR 0.015uF...
  • Page 41 All manuals and user guides at all-guides.com MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRIMMER > < TRANSISTOR > 1-141-605-11 CAP, ADJ (FM TRACKING) 8-729-036-77 TRANSISTOR KRC107M 1-141-601-11 CAP, ADJ (AM TRACKING) Q101 8-729-036-80 TRANSISTOR KRC110M Q102 8-729-036-89 TRANSISTOR KTC3198GR-AT...
  • Page 42 All manuals and user guides at all-guides.com MAIN MEGA BASS PB Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R110 1-249-409-21 CARBON 1/4W R380 1-249-417-11 CARBON 1/4W R114 1-249-431-11 CARBON 1/4W R381 1-249-437-11 CARBON 1/4W R115 1-249-425-11 CARBON 4.7K 1/4W...
  • Page 43 All manuals and user guides at all-guides.com POWER POWER KEY PRESET REC SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > 1-677-751-11 POWER KEY BOARD ***************** R121 1-247-815-91 CARBON 1/4W R122 1-249-439-11 CARBON 1/4W <...
  • Page 44 All manuals and user guides at all-guides.com CFD-ZW755 REC SW VOLUME Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < DIODE > MISCELLANEOUS ************** D301 8-719-991-33 DIODE 1SS133T-77 1-533-233-31 HOLDER, FUSE < IC > 1-792-553-11 WIRE, PARALLEL (23 CORE)
  • Page 45 All manuals and user guides at all-guides.com CFD-ZW755 US Model SERVICE MANUAL 2002.06 SUPPLEMENT - 1 File this Supplement with the Service Manual. Subject : CHANGE OF CD MECHANISM (SPM-02027) CD mechanism changed to KSM-213RDM from KSM-213CDM after serial No.0560201.
  • Page 46 All manuals and user guides at all-guides.com CFD-ZW755 OPTICAL PICK-UP SECTION (KSM-213RDM) M701 M702 (including M701) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No.
  • Page 47 All manuals and user guides at all-guides.com CFD-ZW755 Printing Method for Large Sized Documents Such As Circuit Diagrams Printing the page that exceeds A4-size two pages (or letter size) is possible by specifying the print range. (Acrobat Reader Version 4.0 or later) 1.
  • Page 48 All manuals and user guides at all-guides.com CFD-ZW755 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.

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