Casio CD-350S Service Manual
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Casio CD-350S Service Manual

Casio CD-350S Service Manual

Cd cassette system
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INDEX
CD-350S
AUG. 2001
MULTI FUNCTION DISPLAY
POWER
MEMORY
REPEAT/PRESET
REC
PLAY
REW
Model-B
:
USA
Model-C
:
EU
Model-G
:
Argentina
Model-E
:
Other Countries
CD CASSETTE SYSTEM
COMPACT
DIGITAL AUDIO
RANDOM/REMAIN
BAND
STOP/
FWO
EJECT
PAUSE

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  • Page 1 CD-350S AUG. 2001 MULTI FUNCTION DISPLAY COMPACT DIGITAL AUDIO POWER MEMORY RANDOM/REMAIN REPEAT/PRESET BAND STOP/ PLAY EJECT PAUSE Model-B Model-C Model-G Argentina Model-E Other Countries CD CASSETTE SYSTEM INDEX...

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS --------------------------------------------------------------------------------- 1 BLOCK DIAGRAMS ------------------------------------------------------------------------------ 2 ADJUSTMENTS ----------------------------------------------------------------------------------- 4 CASSETTE MECHANISM --------------------------------------------------------------- 4 TUNER ---------------------------------------------------------------------------------------- 6 CD TROUBLESHOOTING ---------------------------------------------------------------------- 8 PCB LAYOUT ------------------------------------------------------------------------------------- 18 WIRING DIAGRAMS---------------------------------------------------------------------------- 20 SCHEMATIC DIAGRAMS --------------------------------------------------------------------- 21 EXPLODED VIEWS ----------------------------------------------------------------------------- 23 PARTS LIST --------------------------------------------------------------------------------------- 26...

  • Page 3: Specifications

    SPECIFICATIONS CD PLAYER Type .............. Compact disc player with optical pick up Number of channels ........2 (stereo) Frequency response ........20 Hz - 20 kHz, ± 3 dB Dynamic range ..........70 dB Total harmonic distortion ....... 0.1 % (1 kHz) S/N ratio ............

  • Page 4: Block Diagrams

    LCD DISPLAY FM ANT. AM ANT. LAMP KEY CONTROL 10V 40mA X3 DOOR SWITCH FM RF. AM OSC. CF701 75KHz LAMP CONTROL SLT. SWITCH L102 T103 U-COM Q406 IC101 IC701 DISC MOTOR TC9314F-043 TA2104AN MOTOR AND REGULATOR ACTUATOR FM OSC. DRIVER Q120 L103...
  • Page 5 — 3 —...

  • Page 6: Adjustments

    ADJUSTMENTS CASSETTE MECHANISM General Remarks • Before attempting to adjust the mechanism, wipe clean all tape-contacting surfaces (pinch roller, REC/PB head, erase head, and capstan), as well as the contact surfaces of the driving parts (motor pulley, flywheel, pulley, belt, and clutch assembly), with a piece of soft cloth moistened with denatured alcohol. Grease stains may cause trouble.
  • Page 7 Tape Speed Adjustment (Figures 3 and 4) Step Setting Adjust Result Play the test tape Motor screw Frequency counter reading should be (MTT-111N) (Figure 4) 3000 Hz (2940 ~ 3060). Frequency Counter 3000 Headphone Jack Figure 3 Motor Screw Figure 4 —...

  • Page 8: Tuner

    TUNER General Remarks • When aligning the range and adjusting tracking, proceed with alignment in a sequence of AM--FM. • Use a screwdriver with a plastic grip for all alignments. Equipment Required • AM signal generator (AM SG) • Loop antenna •...
  • Page 9 FM IF Alignment (Figures 6) Frequency of Tuning dial Step Alignment Adjustment Remarks signal generator setting IF calibration 10.7 MHz 98.1 MHz (Non- Obtain sine-wave and adjustment) maximum amplitude Max. FM Alignment (Figures 6) Frequency of Tuning dial Step Alignment Adjustment Remarks signal generator...

  • Page 10: Cd Troubleshooting

    CD TROUBLESHOOTING Open the CD door and set the function switch for CD position. Is “00” display on LCD? (See page9) Load a disc and close the CD door. Is total track number displayed? (See page9) Press “ ” button. Is the audio signal present at the output (See page16)
  • Page 11 1. At power on, “00” is not displayed. Is + 5V lines Check Q903. normal (for IC902)? Check pins 26 and 58.59.77 of IC901. Does Check X901. 16.93MHz clock pulse appear Check circuit around X901 and IC901. at pin 78/79 of IC901? Check soldering and circuit around IC901.
  • Page 12 Note : Open the CD door and set the door switch for “on” position. Check the radiation power with an optical power meter or by watching the radiation through the lens or the pickup unit at a minimum distance of 30cmfrpm the from pickup. Does the Laser emit? (See page11) Does the lens...
  • Page 13 2-A1 Is Q901 emitter 5V? Check Q901. (Play) Is waveform Check circuit around at pin 21 (SEL) of IC902 like that IC901 and IC902 (SEL). shown in figure 10? Is waveform Check circuit around at base of Q901 like that pins 21 and 45 of IC901.
  • Page 14 2-A2 Is Q403 Check circuit around Q403. emitter 8V? Is waveform Check circuit around pin 16 (FSO) of IC902. at C964 4.7UF (FSO) like that shown in figure 12? IC902 is defective. waveform at pins 21 to 23 Check circuit around pins 20~23 of IC903.
  • Page 15 Does the disc motor rotate? (See page14) Is waveform at pin 24 (DMEO) of IC902 like that shown in figure 14? Check circuit around pin 24 of IC902. Is waveform at pins 14 to 16 of IC903 like that Check circuit around pins 14 to 16 of IC903.
  • Page 16 2-B1, B2 Is PSET switch circuit normal? Does gear and mechanism of disc motor Is waveform at operate normally? (See page15) pin 54 PU-INNER of IC701 like that shown in figure 16? Is waveform at pin 26 (FMSO) of IC902 like that Check PU-INNER switch.
  • Page 17 2-B3 Is waveform Check circuit around pins 1~5 at pin 1(RFO) of IC902 like that and 41~44 of IC902. shown in figure 19? Is waveform at pin 35 (TSO) of IC902 like that shown in figure 20? Check circuit around pins 30~40 of IC902.
  • Page 18 3. No present at R939 (R ch) and R940 (L ch) audio signal. Does audio signal appear at pins 1 and 8 Check circuit around pins 1~8 of IC904. of IC904? Check pins 1~7 of IC901. — 16 —...
  • Page 19 4. Selected music cannot be searched smoothly. Press the play key. (PAUSE) Check 100mV PP waveform at pins Is waveform 3 and 8 of CN901. at pin 35 (TSO) of IC902 like that Check pins 4 and 5 of IC901. shown in figure 23? Check pickup.

  • Page 20: Pcb Layout

    PCB LAYOUT MAIN PCB — 18 —...
  • Page 21 CD DOOR SW PCB LAMP PCB MONO/STEREO BEATCUT PCB SW701 R731 R729 R730 R732 CN705 LED0 LED5 LED2 LED1 CN102 CN204 MONO/STREO BEATCUT AUDIO PCB FUSE1101 T 1.6A L250V CN301 — 19 —...

  • Page 22: Wiring Diagrams

    AC IN AUDIO PCB R248 D212 JP303 JP304 CN203 C242 CN203 D302 D210 Q207 JP311 CD DECK C232 R235 AO D203 Q302 R311 CN302 D204 R236 C303 C227 D214 R302 JP308 C307 R301 C321 R254 Q210 Q205 R251 Q301 C224 C310 C223 R231...

  • Page 23: Schematic Diagrams

    Q406 R409 LCD DISPLAY CLASSIC ROCK JAZZ 2SD-2159 LAMP1-LAMP4 S 1/2W R147 C119103 220K TIMER SLEEP TAPE Q116 9014 OVER R132 3.3K INTRO REPEAT RANDOM R410 C156 472M 470 1/4W Q106 TRACK MEMORY REMAIN STEREO R173 9014 R120 Q408 9015 R121 D404 C178...
  • Page 24 R232 C227 R233 470U R254 R231 R230 Q205 Q206 9014 9014 C225 D214 C244 C233 R234 C224 R235 100U TO TUNER CN202 C237 R.CH R308 C241 R236 L.CH 153M C306 Q302 500P R304 C313 R309 C236 C226 9014 154M C202 R204 R306 C315...

  • Page 25: Exploded Views

    EXPLODED VIEWS — 23 —...
  • Page 26 16-1 16-2 16-3 16-4 16-5 16-6 — 24 —...
  • Page 27 — 25 —...

  • Page 28: Parts List

    PARTS LIST CD-350S Notes: 1. Prices and specifications are subject to change without pointer notice. 2. As for spare parts order and supply, refer to the “GUIDEBOOK for Spare parts Supply”, published separately. 3. The numbers in item column correspond to the same numbers in drawing.
  • Page 29 Item Parts Code Parts Name Specification Price Remarks Code ELECTRICAL PARTS 9482 1357 LCD DISPLAY INS-9500TT 69X 220-206929-331 IC902 9432 1358 IC/TA-2065F PCB-CD 210-002065-006 IC903 9482 1359 IC/TA-2092N #CD82/ 210-002092-014 IC102 9482 1360 IC/TA2104BN CHP-38 210-002104-014 IC904 9482 1361 IC/BA-4510F #CD82.86. 210-004510-006 IC901 9482 1362 IC/TC-9284BF CD82.
  • Page 30 Item Parts Code Parts Name Specification Price Remarks Code TOP PANEL UNIT 9482 1401 FCC CABLE 15PINS K "1.0MM" 235-150060-110 9482 1402 MECHA UNIT/CD (SANYO) 356-110000-091 9482 1403 RUBBER SILICON (BLACK) HAR 458-328840-220 9482 1404 COVER/CD MECHA 500-991110-000 9482 1405 CD DOOR LOCK CD7288 872-846000-000 9482 1406 KNOB/CD DOOR 572-850052-000...
  • Page 31 CASIO TECHNO CO.,LTD. Overseas Service Division Nishi-Shinjuku Kimuraya Bldg. 1F 5-25, Nishi-Shinjuku 7-Chome Shinjuku-ku, Tokyo 160-0023, Japan...

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