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Sanyo CWM-460 Service Manual

Cd portable radio cassette recorder
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Service Manual

SPECIFICATIONS

(TAPE DECK SECTION)
Recording System ................. AC bias, 4-channel stereo
Erasing System ..................... Magnet erase
Tape speed ........................... 4.75 cm/sec.
Fast forward and
Rewind time .................... Approx. 110 sec. (C-60 tape)
Frequency range .................. 80 - 12,000 Hz (Normal tape)
(CD PLAYER SECTION)
Channels ............................... 2 channels stereo
S/N ratio ................................ 73 dB
Wow & Flutter........................ Below measurable limits
Sampling frequency .............. 44.1 kHz
Quantization .......................... 16 bits linear/ch
Pickup light source ................ Semi-conductor laser
Pickup wave length ............... 790 nm
Laser output .......................... Continuous wave max. 0.6 mW
CD Portable Radio
Cassette Recorder
(RADIO SECTION)
Tuning range ......................... FM : 87.9 - 107.9 MHz(CA,US,MX)
Antenna ................................. Built-in ferrite bar and telescopic rod
.............................................. antenna
(GENERAL SECTION)
Power output ......................... 3W/ch (DC max)
Speaker ................................. 12 cm x 2. Piezoelectric x 2 (4 ohms)
Terminal impedance ............. PHONES : 32 ohms
Power source ........................ AC : 120V, 60Hz (CA,US,MX)
Dimensions ........................... 615 (W) x 275 (H) x 253 (D) mm
Weight (approx.) .................... 6 kg (Not including batteries)
Specifications subject to change without notice.
FILE NO.
CWM-460
(US)
(MX)
MCD-S925
(CA)
MCD-S925F
(XE)
(AU)
(PA)
PRODUCT CODE No.
164 074 00 CWM-460/US
164 074 05 CWM-460/MX
164 074 01 MCD-S925/CA
164 074 02 MCD-S925F/XE
164 074 03 MCD-S925F/AU
164 074 04 MCD-S925F/PA
: 87.5 - 108 MHz(PA,AU,XE)
AM : 520 - 1,710 kHz
(10 kHz step)(PA,CA,MX)
:522 - 1611 kHz
(9 kHz step)(PA,AU,XE)
: 230V, 50Hz (XE)
: 230-240V, 50Hz (AU)
: 110-120/220-240V, 50/60Hz (PA)
DC : 12 V (8 "R20/D" batteries)
SM
5810217
REFERENCE No.

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  Summary of Contents for Sanyo CWM-460

  • Page 1: Specifications

    MCD-S925 (CA) MCD-S925F (XE) (AU) (PA) SPECIFICATIONS PRODUCT CODE No. 164 074 00 CWM-460/US 164 074 05 CWM-460/MX 164 074 01 MCD-S925/CA 164 074 02 MCD-S925F/XE 164 074 03 MCD-S925F/AU 164 074 04 MCD-S925F/PA (RADIO SECTION) (TAPE DECK SECTION) Tuning range ......FM : 87.9 - 107.9 MHz(CA,US,MX) Recording System ....
  • Page 2: Laser Beam Safety Precaution

    LASER BEAM SAFETY PRECAUTION CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT CAUTION-INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL-USYNLIG LASER STRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE FOR STRÅLING. VARNING-OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRR ÄR URKOPPLAD.
  • Page 3: Tuner Adjustments

    TUNER ADJUSTMENTS • Use a plastic screw driver for adjustments. • Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter. • Set of unit Supply voltage : DC 12V Speaker : 8 ohms Standard output : 50 mW Function switch : RADIO...
  • Page 4 TUNER ADJUSTMENTS (3). TUNING FREQUENCY RANGE ADJUSTMENT (EUROPE/ASIA) FM BAND OSCILLOSCOPE FM-SG FM Band: Set the internal modulation of Singnal generator to 1 KHz Dev. 22.5KHz VOLTAGE BAND SING. ADJUST FOR ADJUSTMENT METER FRE. 87.5MHz CHECK L803 R803 1.5V+-0.1V 108MHz CHECK - - - - OUTPUT...
  • Page 5: Tape Deck Adjustments

    TAPE DECK ADJUSTMENTS 1. HEAD REPLACEMENT • After replacement, demagnetize the heads by using a degausser. • Be sure to clean the heads before attempting to make any adjustments. • All wiring should be returned to the original position after work is completed. 2.
  • Page 6: Wiring Connection

    WIRING CONNECTION This is a basic wiring connection . AC IN L-CH R-CH SPEAKER BOX SPEAKER BOX DC 12V BATTERY CNP2A BATTERY P.W.B FM ROD ANT. (2P) AC IN SOCKET (15P) (2P) (15P) CD MAIN/TUNER P.W.B (9P) (2P) CN502 (6P) (6P) (4P) CD MECHANISM...
  • Page 7: Exploded View(Cabinet & Chassis)

    EXPLODED VIEW(CABINET & CHASSIS) - 6 -...
  • Page 8: Parts List

    645 049 5694 2P J WIRE AWG22UL,SPK TO MAIN 645 038 2048 AC CORD SET,UL APP(MX)(CA)(US) ! ! ! 645 049 6004 DISPLAY LENS,SANYO 645 022 1576 AC LINE CORD SET,SAA APP(AU) ! ! ! 645 049 5984 CASS DOOR LENS...
  • Page 9 PARTS LIST ELECTRICAL-PARTS REF.NO. PART NO. DESCRIPTION SW410 645 041 4596 TACT SW KTL-TC-0103,REPEAT REF.NO. PART NO. DESCRIPTION VR101 645 036 3122 ROTARY VR,XV0141GPVN20FS- 645 049 5847 ROD ANTENNA XT401 645 049 5861 CRYSTAL 4.5MHZ 645 049 5830 15P FILM CABLE, 645 049 5700 2P SHIELD WIRE AWG26, CN501 TO CD MECHA CNP4 TO CN4...
  • Page 10 PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION CN005 645 014 1232 9P WAFTR V-TYPE,CNP5 T0802 645 049 5663 AM IFT,OH-827538-00 CN006 645 025 1917 4P WAFER,MOTOR TC801 645 032 4451 TRIMMER 20PF,PHILIPS CN007 645 049 5748 15P WAFER,CNP7 TC802 645 016 6495 TRIMMER,PHILIPS CN008...
  • Page 11: Exploded View(Tape Deck Mechanism)

    EXPLODED VIEW(TAPE DECK MECHANISM) TM01 TM02 TM03 TM04 TM05 TM06 PARTS LIST CASS MECHANISM, SEMI-AUTO ZY33F 23S REF.NO. PART NO. DESCRIPTION 645 049 6448 CASS MECHANISM, SEMI-AUTO ZY33-F 23S TM01 645 016 5252 MG ERASE TM02 645 025 2518 R/P HEAD TC-951,STEREO TM03 645 048 8740 PINCH ROLLER ARM TM04...
  • Page 12 IC BLOCK DIAGRAM & DESCRIPTION IC501 LC78622 (Digital Signal Processor) TEST2 TEST4 TST11 EFMO PDO ISET FR TEST1 TEST3 TEST5 59 64 11 32 33 62 RAM Address Slice level 2KÅ~8bit DEFI VCO Clock Oscillator Generatorl Control & Clock Control EFMIN Syncrnous Detect Interpolalation Mute...
  • Page 13 IC BLOCK DIAGRAM & DESCRIPTION IC402 LC723369557 (LCD Driver) MICOM NAME PIN NO. NAME FUNCTION Connection terminal of crystal oscillation (4.5MHz) TEST2 GND. PG3(S10) CD IDATA CD MECA Communcation Line PG2(SO0) CD ODATA DSP,ASP Control PG1(SCLK0) CD CLOCK RWC Output CD RESET CD DSP RESET Output Non Connection...
  • Page 14 IC BLOCK DIAGRAM & DESCRIPTION IC501 LC78622 (Digital Signal Processor) Terminal Terminal DESCRIPTION symbols DEFI Input terminal for defect detection signals (DEF). (Ground when not used.) Input terminal for test. Pull-down resistor incorporated. Make sure to ground. Output terminal for phase-comparator for external VCO control. VVSS For PLL Ground terminal for internal VCO.
  • Page 15 IC BLOCK DIAGRAM & DESCRIPTION Terminal Terminal DESCRIPTION symbols 43 XVDD Power terminal for crystal oscillator 44 XOUT Joining terminal for crystal resonator (16.9344 MHz) 45 XIN 46 XVSS Ground terminal for crystal oscillator. Make sure to ground. 47 SBSY Output terminal for synchronizing signals of sub-code clock.
  • Page 16: Wiring Diagram (Battery,Cd Sw,Cass Pe-Amp)

    WIRING DIAGRAM (BATTERY,CD SW,CASS PE-AMP) BATTERY CD SW CASS PRE-AMP - 15 -...
  • Page 17 SCHEMATIC DIAGRAM (MAIN for US,CA,MX) This is a basic schematic diagram. - 17 - - 16 -...
  • Page 18 SCHEMATIC DIAGRAM (MAIN for AU,XE) This is a basic schematic diagram. - 19 - - 18 -...
  • Page 19 SCHEMATIC DIAGRAM (MAIN for PA) This is a basic schematic diagram. - 21 - - 20 -...
  • Page 20 SCHEMATIC DIAGRAM (CD MAIN) This is a basic schematic diagram. - 23 - - 22 -...
  • Page 21 WIRING DIAGRAM (CD MAIN/TUNER for US,CA,MX) - 24 -...
  • Page 22: Voltage Of Ic & Transistor

    4.05 13.6 0.01 0.01 13.7 0.66 Transistor No. Q310(C536) Q311(C536) Q601(1317) Q502(1740) Q503(B764) Q504(A733) Pin Name Voltage 4.69 5.19 4.69 5.19 0.05 0.05 5.16 4.57 5.14 SANYO Technosound Co., Ltd. Jun./ '01 / 2150 BB Printed in Japan Osaka, Japan...

This manual is also suitable for:

Mcd-s925Mcd-s925f