Casio CD-350S Service Manual Download Page 20

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PCB LAYOUT

Q109

Q126

Q106

C178

C170

C141VD105

JP104

C179

C152

R405

R407

C958

C402

C942

R954

LED+

R942

R943

C936

R950

R704

R163

R159

JP913

JP916

JP918

R978

JP710

JP6

JP717

JP716

JP715

JP711

R744

D707

D708

D709

D704

D703

D706

D712

D713

D710

R741

JP929

CN902

JP930

R977

R743

R908

R907

JP914

R957

C976

Q905

C940

C938

R970

C943

R938

R941

R952

R953

R948

JP909

JP907

C913

C919

R951

C937

R949

R910

JP947

JP946

JP945

JP943

JP942

JP941

JP940

JP922

JP921

JP923

JP924

JP925

IC903

JP939

JP938

VR903

JP937

JP936

JP926

R935

C980

C973

R937

R975

C925

R906

R921

R920

R916

R923

C903

R912

C944

C911

R911

R913

R904

JP949

R902

RFO

C927

R936

Q904

D702

D401

C151

C981

L103

C104

C127

C117

C106

D102

D101

C101

CF105

JP1

C114

FM DSC+

R124

R123

R182

R185

R184

R127

C109

R183

R143

Q125

C156

C161

C160

Q119

D112

C171

C172

C720

C159

R133

R115

R147

R134

JP108

JP715

REMAIN

JP116

JP117

R993

R120

R135

C119

R173

CN101

JP4

JP3

JP105

D718

R176

R179

C711

C717

R178

R738

JP173

JP5

JP706

R708

C713

Q703

Q402

Q907

R403

R161

R410

R939

R940

R413

R250

C169

Q401

Q408

Q908

R955

R956

R958

R960

R959

R712

R979

R976

C977

D705

C719

C972

DM-

DM+

GND

FM+

FM-

F-

F+

COM

T+

T-

C975

C984

R997

D711

JP972

JP912

JP911

JP915

JP910

JP708

JP919

JP920

JP709

D715

D716

R742

C969

U-D

D714

REPEA

MEMOR

F-SKIP

R-SKIP

JP712

ON/OFF

SENSOR

U+

CN703

DOOR SW

R914

C953

C931

C987

C935

C712

R711

C718

R735

R739

R401

R402

R982

R980

R981

D504

C952

C951

C950

IC901

D503

L701

C986

GND

CF701

C702

C701

FM DSC+

D701

CN103

CN706

RANDOM

PLA

Y/P

AUSEK

BAND

C705

Q118

C128

C132

R180

Q116

R175

R174

Q102

IC102

C155

C131

C715

R996

R408

C716

R404

R995

R160

Q910

Q403

Q404

Q405 R406

R709

C988

D902

C941

Q903

C918

C959

R961

R962

C917

IC902

C901

JP944

JP951

JP934

JP931

R990

R966

R963

R965

C902

C960

C914

C964

C926

C974

IC701

C971

CN901

R973

R972

R964

R974

C965

C970

TEO

R915

R905

C961

R901

R962

C963

C904

R925

R926

C921

R922

C966

C908

R927

R930

R931

C982

R968

R928

C933

C930

L903

R967

VR902

C983

C915

Q901

C968

JP950

R934

VR901

Q406

R969

R944 R945

C929

C954

R946

R947

C934

C949

C939

JP908

FB901

X901

R903

JP948

C910

C907

R909

R919

C906

C923

C955

IC 904

C956

U+

U-

D403

D402

L702

L902

L901

D210

Q909

C153

D109

D110

D111

D209

D211

D901

C989

R991

JP119

JP401

JP904

CN702

JP201

JP902

JP903

JP901

R710

C985

C957

JP118

R992

Q704

C714

R714

R118

C706

C710

C703

C704

C708

C707

R737

R713

R715

R716

R717

R718

LED-

JP701

JP702

JP906

C721

R703

R740

C709

R705

R719

JP704

JP2

R706

JP905

R707

R177

D107

D108

R409

C163

D404

C990

C122

C113

JP102

R116

R132

T103

R146

C112

C116

C108

T102

JP7

CF101

CF103

CF102

Q120

R166

D113

JP8

JP102

JP111

C118

L102

L101

L106

L107

C133

R186

C105

C107

C401

C945

C947

2470114E.PCB

248-247801-104

PCB FOR SA

CD MECH.

AND

A2104AN

5-Sep-2001 14:16:17

C948

C110

FM ANT

C103

C102

C115

C121

C111

JP123

VD102

Q110

R121

R181

GND

C139

C135

MW/R

MW/W

JP103

MW/B

R144

R104

R101

CT101

CT103

VD103

VD101

R131

C130

R122

C120

R170

R994

D717

LCD701

TEST

248-247801-104

CN704

SK/10K

MAIN PCB

Summary of Contents for CD-350S

Page 1: ...SYSTEM CD 350S AUG 2001 Model B USA Model C EU Model G Argentina Model E Other Countries POWER BAND PLAY REC REW FWO EJECT PAUSE STOP MEMORY REPEAT PRESET RANDOM REMAIN MULTI FUNCTION DISPLAY COMPACT DIGITAL AUDIO ...

Page 2: ...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: ...ADIO Frequency range AM 530 1710 kHz FM 87 5 108 MHz Antenna AM Ferrite bar antenna FM Telescopic antenna TAPE Tape speed 4 75 cm sec Track format 4 track stereo Wow and flutter 0 2 WRMS S N ratio 35 dB GENERAL Power consumption AC 18 W Output power 1 3 W 1 3 W 10 THD Speaker 102 mm 8 ohms 2 Dimensions 395 175 175 mm WMD Weight 3 6 kg with batteries Accessories AC power cord User s guide Specifica...

Page 4: ...OWER ON OFF 12V Q402 REGULATOR Q903 5V DIGITAL SIGNAL PROCESSOR IC901 TC9284BF U COM IC701 TC9314F 043 LCD DISPLAY X901 16 9344MHz CF701 75KHz TO AUDIO AMP BLOCK KEY CONTROL DOOR SWITCH SLT SWITCH DISC MOTOR SLED MOTOR DISC CN901 CN702 CN902 PICKUP MUTE LAMP CD VCC1 TUNER TAPE GND VCC2 TO AUDIO AMP BLOCK 5V LAMP CONTROL Q406 MOTOR AND ACTUATOR DRIVER IC903 SIGNAL SERVO AMP IC902 LASER DRIVER Q901 ...

Page 5: ... POWER AMP IC301 LA4227 R SPEAKER PHONES REGULATOR 5V Q207 REC PLAY SWITCH TAPE MUTE Q201 Q202 FUNCTION SWITCH SW301 RECTIFIER D1101 D1104 IN4001 POWER TRANSFORMER BATTERY UM 1X8 DC 12V AC SOCKET SWITCH CN202 CN203 LAMP MUTE TU R L CH VCC1 CD TUNER TAPE GND VCC2 5V R P R CH R P HEAD L CH CN201 ...

Page 6: ...oistened with denatured alcohol Grease stains may cause trouble Never use a magnetized screwdriver for head adjustment Equipment Required Oscilloscope Frequency counter Screwdriver Plastic type Test tapes MTT 113C TEAAC or TCC 111N TEAC Head Azimuth Adjustment Figures 1 and 2 Set Headphone jack Note Mode Switch is X Y position B A Step 1 Setting Play the test tape 8 KHz Position MTT 113C Adjust Az...

Page 7: ...ent Figures 3 and 4 Step 1 Setting Play the test tape MTT 111N Adjust Motor screw Figure 4 Result Frequency counter reading should be 3000 Hz 2940 3060 Figure 3 Frequency Counter SET Headphone Jack 3000 Figure 4 Motor Screw ...

Page 8: ...m MW Alignment Figures 5 AM IF Alignment Figures 5 Step Alignment IF calibration Tuning dial setting 999 KHz 1000 KHz Remarks Obtain sine wave and maximum amplitude Frequency of signal generator 450 KHz Adjustment T102 Max Max Step 1 2 1 2 3 Alignment Tuning range calibration Adjustment of tracking Tuning dial setting Low end High end 600 KHz 612 KHz 1400 KHz 1404 KHz Remarks Confirm 1 4 V 0 05 V ...

Page 9: ...ange calibration Adjustment of tracking Tuning dial setting Low end High end 90 1 MHz 106 1 MHz Remarks Confirm 20 V 0 1 V Confirm 6 5 V 0 2 V Obtain sine wave and maximum amplitude Frequency of signal generator 87 5 MHz 108 MHz 90 1 MHz 106 1 MHz Adjustment L103 L102 CT101 Repeat the above adjustment FM SG GND FM ANT R2 R1 FM GND Output meter Oscilloscope Headphone jack Dummy load 32 ohm R1 Outpu...

Page 10: ...00 display on LCD Is total track number displayed Is the audio signal present at the output terminals Can a selected music be searched smoothly No See page9 No No No 1 2 3 4 Yes Yes Yes Yes Load a disc and close the CD door Press button Press or button OK See page17 See page16 See page9 ...

Page 11: ...ck pulse appear at pin 78 79 of IC901 No l Check Q903 l Check pins 26 and 58 59 77 of IC901 No l Check X901 l Check circuit around X901 and IC901 Yes Yes l Check soldering and circuit around IC901 l Check LCD l Check wire connector 2 How long does it take until 00 00 00 is displayed after the CD door has closed Less than 16 sec More than 16 sec A B See page10 See page13 1 0 Vp p 1 5 Vp p Figure 7 ...

Page 12: ... l Check wire connector from pickup l Check circuit around pins 1 5 and 46 48 of IC902 l Check circuit around pins 30 42 of IC902 l Check circuit around IC901 IC902 and IC903 See page12 See page11 Figure 8 Figure 9 1 5 V 1 5 V 2 A 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 ...

Page 13: ...n in figure 10 No l Check Q901 No l Check circuit around IC901 and IC902 SEL Yes Is waveform at base of Q901 like that shown in figure 11 No l Check circuit around pins 21 and 45 of IC901 Yes Yes l Check contact 15P flat cable l Check pickup GND GND 2 5 V 0 V 3 V 0 V Figure 10 Figure 11 ...

Page 14: ...und Q403 No l Check circuit around pin 16 FSO of IC902 l IC902 is defective Yes Is waveform at pins 21 to 23 of IC903 like that shown in figure 13 Yes l Check circuit around pins 20 23 of IC903 Yes Yes l Check 15P flat cable l Check focus coil of pickup DC resistance 8 Ω Vref 0 2 V Vref 2 5 V Figure 12 Figure 13 ...

Page 15: ...figure 14 Is waveform at pins 14 to 16 of IC903 like that shown in figure 15 l Check circuit around pin 24 of IC902 l Check circuit around pins 14 to 16 of IC903 l IC902 is defective Yes Yes l Check sled motor DC resistance 12 Ω l Check wire connector B1 See page14 Vref 4 V Vref 4 V Figure 14 Figure 15 ...

Page 16: ... motor operate normally B3 Yes Is waveform at pin 26 FMSO of IC902 like that shown in figure 17 No Is waveform at pins 9 to 11 of IC903 like that shown in figure 18 No No Yes Yes l Check disc motor DC resistance 12 Ω l Check wire connector l Check operation of gear l Check circuit around pin 26 FMSO of IC902 l Check circuit around pins 9 and 11 of IC903 l IC902 is defective See page15 GND 5 V Vref...

Page 17: ...of IC902 l Check circuit around pins 1 5 of IC903 l IC902 is defective l Check flat cable l Check tracking coil of pickup DC resistance 8Ω No No No Is waveform at pin 35 TSO of IC902 like that shown in figure 20 Yes B3 Is waveform at pin 1 RFO of IC902 like that shown in figure 19 No l Check circuit around pins 1 5 and 41 44 of IC902 1 5 Figure 19 Figure 20 0 1 1 5 Figure 21 Figure 22 ...

Page 18: ... 16 3 No present at R939 R ch and R940 L ch audio signal 3 Does audio signal appear at pins 1 and 8 of IC904 No Yes l Check pins 1 7 of IC901 l Check circuit around pins 1 8 of IC904 ...

Page 19: ... that shown in figure 25 Yes l Check R SKIP and F SKIP l Check wire connector CN902 l Check pins 29 and 36 37 of IC701 l Check voltage of IC903 l Check flat cable Press the play key PAUSE l Check 100mV PP waveform at pins 3 and 8 of CN901 l Check pins 4 and 5 of IC901 l Check pickup Yes l Check gear and mechanism of sled motor l Check lens of pickup Press the or key Figure 23 Figure 24 Figure 25 V...

Page 20: ...2 R980 R981 D504 C952 C951 C950 IC901 D503 L701 C986 GND Y Y X X B A CF701 C702 C701 FM DSC D701 CN103 CN706 RANDOM P L A Y P A U S E K BAND C705 Q118 STOP A C128 C132 R180 Q116 R175 R174 Q102 IC102 C155 C131 C715 R996 R408 C716 R404 R995 R160 Q910 Q403 Q404 Q405 R406 R709 C988 D902 C941 Q903 C918 C959 R961 R962 C917 IC902 C901 JP944 JP951 JP934 JP931 R990 R966 R963 R965 C902 C960 C914 C964 C926 C...

Page 21: ... D203 C225 C244 R234 D214 R232 R254 Q205 C226 R221 R247 C236 C221 C237 R222 C234 R227 R226 R225 D207 JP301 R246 R412 C403 D202 C212 R411 DC FUSE1101 T 1 6A L250V C1105 C1103 D1103 D1101 C1104 C1106 D1104 D1102 GND AC IN AC IN LAMP SW C804 R801 R249 E B C Q801 R206 R802 R252 C216 C803 R219 C205 JP310 R220 C204 R211 C207 C231 R218 C214 C239 R212 C802 C233 C213 R217 IC201 C211 C215 R216 C209 Q202 Q20...

Page 22: ...3 CN101 JP4 JP3 JP105 D718 R176 R179 C711 C717 R178 R738 JP173 JP5 JP706 R708 C713 Q703 Q402 Q907 R403 R161 R410 R939 R940 R413 R250 C169 Q401 Q408 Q908 R955 R956 R958 R960 R959 R712 R979 R976 C977 D705 C719 C972 DM DM SLT GND FM FM F F LD PD A D E COM T T LG UR C F B C975 C984 R997 D711 JP972 JP912 JP911 JP915 JP910 JP708 JP919 JP920 JP709 D715 D716 R742 C969 U D D714 REPEAT MEMORY F SKIP R SKIP ...

Page 23: ...D SBOK TEST5 TEST4 TEST3 GNDA LO LO VDA RO RO GNDA 2VREL SEL FCS1 FKIC FEL2 FEL1 FEI TESH TEOF SBAD DFCT FMSO FMSN FMSP THLD TS2O TS2N TS2P TS1N TS1P TS0 TEL1 TEL2 TSN FEL2 FSO FSN COSC OSC1 GND VCC SEL DMEP RF GND FM RFout FM RFin AM LOW CUT MIX OUT V CC AM IF IN FM IF IN GND AGC QUAD R OUT L OUT RF V CC AM RFin FM OSC AM OSC OSC OUT ST LED IF REQ DET OUT DET IN LPF1 LPF2 DMEN DMEO RFN TEST5 TPO ...

Page 24: ...307 500P R303 560 R307 2K2 R302 4K7 R308 2K2 R301 4K7 R311 2K2 R312 10K R305 150 R306 150 C320 10U 16 R240 2K2 C232 220U C214 100U C204 222M C215 223 D202 IN4148 D213 IN4148 D206 6V8 DC 12V DC AC 1 3 2 1 3 2 1 3 2 D210 IN4148 D302 IN4148 D212 IN4148 D209 IN4148 D204 IN4148 D203 IN4148 D201 IN4148 D207 6V8 C234 100U C403 470U C1102 222 C1104 104 C1106 104 LSW D1102 IN4001 D1104 IN4001 C1103 104 R31...

Page 25: ... 23 27 6 1 5 26 25 9 2 28 3 10 13 11 12 EXPLODED VIEWS ...

Page 26: ... 24 17 14 18 16 4 16 5 16 6 16 1 16 2 16 3 14 4 15 7 ...

Page 27: ... 25 21 21 21 22 19 20 23 24 8 21 ...

Page 28: ...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: ... 011 0 00 0 1 0 0 A 5 9482 1375 PCB ASSY MAIN 2478 012 0 00 0 0 1 0 A 5 9482 1376 PCB ASSY MAIN 2478 013 0 00 0 0 0 1 A 6 9482 1377 PCB ASSY TUNER 2478 004 0 00 1 0 0 0 B 6 9482 1378 PCB ASSY TUNER 2478 001 0 00 0 1 0 0 B 6 9482 1379 PCB ASSY TUNER 2478 002 0 00 0 0 1 0 B 6 9482 1380 PCB ASSY TUNER 2478 003 0 00 0 0 0 1 B 7 9482 1381 UNIT FRONT CABINET 2478 080 0 01 1 1 1 1 C 8 9482 1382 UNIT TOP ...

Page 30: ... MECHA 500 991110 000 1 1 1 1 X 23 9482 1405 CD DOOR LOCK CD7288 872 846000 000 1 1 1 1 C 24 9482 1406 KNOB CD DOOR 572 850052 000 1 1 1 1 X BACK CABINET UNIT 25 9482 1407 ROD ANTENNA TA 26295 CD7 155 848026 295 1 1 1 1 C 26 9482 1408 HANDLE 582 705052 000 1 1 1 1 X 27 9482 1409 BACK CABINET 582 9020S3 080 1 1 1 1 C ACCESSORY 28 9482 1315 AC CORD SPT 2 18 2C 151 117117 302 1 0 0 0 C 28 9482 1316 A...

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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Casio CD-350S, Service Manual

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