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Samsung SCR-3232, Service Manual

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Samsung SCR-3232 Service Manual Download Page 17

12

20

No audio output

Focus lock?

Refer to 'No focus lock'

N

Insert audio disc.

Y

Y

Spindle Motor rotates? 

Refer to 'No Spindle Motor rotation' 

N

Y

IC301 50Pin is 0V at pressing SW302?

Solder SW302

N

Y

Audio signal is outputted in 

IC201 77, 80Pin?

Check IC201 power and soldering.

N

Replace IC201

N

Y

Audio signal is outputted in 

IC701 1, 7Pin?

Check IC701 power input and

peripheral integer VR soldering.

N

Replace IC701

N

Y

Audio signal is outputted in JK 701

Check L702, L701 soldering

N

Summary of Contents for SCR-3232

Page 1: ...n Exploded Views n Device Part List n Packing Options n Operational Position Diagram n CD ROM Block Diagram n Troubleshooting n Circuit Diagram n Main Components Block Diagram Pin Descriptions n Electrical Parts List 32X v The design and part of this product is subject to change without prior notice for performance improvement ...

Page 2: ... Samsung Electronics Co Ltd JULY 1998 Printed in Korea Electronics ...

Page 3: ... the electricity formed in body 2 Work table earthing Put the earthed conductive plate Impedance Below 104 such as copper plate on work table 3 Cautions for clothes Do not have any clothes touch with Pick up because the electricity formed in clothes is destroyed easily n Cautions at Service 1 General Items 1 Be careful not to have your eyes or a part of body touch with laser diode at repair becaus...

Page 4: ... the electricity formed in body 2 Work table earthing Put the earthed conductive plate Impedance Below 104 such as copper plate on work table 3 Cautions for clothes Do not have any clothes touch with Pick up because the electricity formed in clothes is destroyed easily n Cautions at Service 1 General Items 1 Be careful not to have your eyes or a part of body touch with laser diode at repair becaus...

Page 5: ...Front 2 Rear 32X Earphone jack Digital output terminal Optional Sound output terminal Interface terminal Master Slave select pin Power terminal Up Down Volume LED Stop Open button Play Search button Disc tray 2 Emergency HOLE ...

Page 6: ...ssemble COVER BOTTOM ASSY as Figure Page 4 2 COVER TOP disassembly After disassembling 4 hooks of FRONT ASSY 2 from COVER TOP 1 pull COVER TOP 1 forward and disassemble it 3 ASSY DECK PCB MAIN disassembly Disassemble FPC PICK UP 24 and FPC MOTOR 25 connected between assy deck and PCB main then disassemble between deck and PCB main 3 ...

Page 7: ...n Operational Position Diagram 7 ...

Page 8: ...8 ...

Page 9: ...9 n Operational Position Diagram ...

Page 10: ...10 ...

Page 11: ...n Refer to No focus lock Y Focus lock Y Disc rotates Refer to No disc rotation Y Pause state v Pause state LED off as disc rotation state and continue 1 track jump Y Spindle lock Y Pick up moves in at power on after moving out Refer to No sled operation IC302 3pin changes from 5V to 0V when power supplied Y Check and replace IC302 power Y Y N Is 3 3V supplied at IC202 4PIN IC202 surround circuits ...

Page 12: ...ng SW301 Y IC301 35pin is 0V with tray in CN502 16pin becomes 0V CN502 14pin becomes 0V Check R528 R511 R512 soldering N N N N IC301 36pin is 0V with tray open Check R528 R511 R512 soldering Replace IC501 Replace IC501 Y Y Y Y IC501 11pin change from 2 1V to 2V at pressing SW301 N N N N N IC501 12pin changes from 2 1V to 2 5V at pressing SW301 IC501 13pin changes from 6V to 4V and 14pin from 6V to...

Page 13: ...nd initial state N N IC101 9pin changes from 4 2V to 3 8V Check IC101 power input and replace Y Open and close tray Disc insettion Y CN501 3pin changes from 2V to 2 5V Check D101 L101 Q102 R102 C103 soldering Y CN501 2pin changes from 0V to 0 7V Check Pick up FPC connection state N N N Y Replace pick up Y 15 ...

Page 14: ...is outputted in IC201 47Pin N Refer to Check power source and initial state N Voltage of IC501 21pin in 12V Check R511 R512 soldering After checking IC501 soldering no error replace IC N Y N N 16 The below signal is inputted in SLED MOTOR terminal Y The below signal is inputted in SLED Motor terminal Y Replace SLED Motor Y ...

Page 15: ...source and initial state Check IC501 power input soldering and R506 R507 R505 R201 C216 soldering Replace FPC Y Y Y Y N N N Y nd Replace IC101 ng N N The below waveform is inputted in CN501 17Pin Y The below waveform is inputted in CN501 14Pin Y Pick up connecting FPC is connected Replace Pick up Y ...

Page 16: ...1 power input and 49Pin soldering Check R207 C221 soldering and pattern Replace IC201 Check R518 soldering The below waveform is inputted in IC502 21Pin CN502 8Pin is 3V Insert disc Y Y Y Y Y Y Y Spindle motor kick signal Check R519 soldering CN502 1Pin is 2V Replace spindle Motor Spindle Motor FPC is connected Replace IC502 Y 19 ...

Page 17: ...N Y IC301 50Pin is 0V at pressing SW302 Solder SW302 N Y Audio signal is outputted in IC201 77 80Pin Check IC201 power and soldering N Replace IC201 N Y Audio signal is outputted in IC701 1 7Pin Check IC701 power input and peripheral integer VR soldering N Replace IC701 N Y Audio signal is outputted in JK 701 Check L702 L701 soldering N ...

Page 18: ...open short N N Y Do the digital signals of IC301 and IC401 communication pattern change from 0V to 5V Check the soldering of IC401 IC301 and pattern open short N Y Y Is there soldering between the pattern of IC401 and CN701 Check the soldering of Damping Resister and IC I F Wafer N Resoldering Y Is IC301 64PIN 5V when main power turns on Check main power end and initial state N Does X301 oscillate...

Page 19: ...10A BG68 10011A BG39 30002A PARTS BOX SYSTEM CUSHION SET PE BAG INSTALL DISK CBF HARNESS PE BAG MANUAL USERS MANUAL USERS CABLE IF SET SPECIFICATION SW E MANILA 400g EPE WHITE T0 1X270X260 ANTI SHARED W SCR 3230 4P 500mm T0 1X270X260 ANTI CD ROM Korean CD ROM Eng Ger 40 Pin I F Cable SCR 3232 COUNT 1 2 1 1 1 1 1 1 1 1 REMARK 32X ...

Page 20: ...07 000070 R CHIP 0 ohm R108 109 124 208 275 307 314 327 501 817 C 12 206 L101 2 2007 000036 R CHIP 2 ohm R520 521 522 523 4 3 2007 000882 R CHIP 4 7 ohm R211 1 4 2007 001442 R CHIP 10 ohm R102 1 5 2007 000071 R CHIP 22 ohm R402 403 406 408 409 416 417 418 419 21 420 421 422 423 424 425 426 427 428 429 430 431 2007 000115 R CHIP 82 ohm R404 405 407 410 411 412 413 414 8 6 2007 000074 R CHIP 100 ohm...

Page 21: ...517 701 714 6 30 2007 000131 R CHIP 91 Kohm R702 707 2 31 2007 000102 R CHIP 100 Kohm R333 1 32 2007 000060 R CHIP 100 Kohm F R505 508 509 510 512 514 516 8 33 2007 000106 R CHIP 220 Kohm R530 531 2 34 2007 000107 R CHIP 470 Kohm R334 1 35 2007 000065 R CHIP 2 2 Kohm R210 1 C CHIP NO CODE NO PARTS SPEC LOCATION NO Q TY 1 C CERAMIC 3 pf C124 1 2 2203 001567 C CERAMIC 10 pf C207 208 2 3 2203 001103 ...

Page 22: ...04 711 9 OTHER NO CODE NO PARTS SPEC LOCATION NO Q TY 1 3708 001107 CONNECTOR FPC CNN 16PIN CN502 1 2 3708 001254 CONNECTOR FPC CNN 17PIN CN501 1 3 3711 003262 CONNECTOR HEADER 56P CN701 CN701 1 4 3710 000001 CONNECTOR SOCKET 2P 1R 2 54mm 1 5 3301 001082 CORE FERRITE BEAD CIB32P600NEM B601 602 L701 702 4 6 0407 000116 DIODE ARRAY DAP202K D101 1 7 3722 000107 EARPHONE JACK HSJ1A15 JK701 1 8 0601 00...

Page 23: ...OR DRIVER SERVO SWITCHER SUB CODE QCH 20MHz CERAMIC OSC SPINDLE KICK BRAKE SLED DRIVER LOAD EJECT DRIVER KA3012D CPU KS88C4400 SUB CODE DATA DATA CONTROL CD ROM DECODER LAYERED ERROR CORRECTION SUB CODE DECODER DATA CONTROL TC9466FA PROM AT27C512R CONTROLLER SECTION MAIN PCB DRIVE SECTION AUDIO SECTION DIGITAL OUT OPTION AUDIO OUTPUT MASTER SLAVE HOST CONTROLLER 5 12V POWER 4PIN CN PIN CONNECTOR 4...

Page 24: ...INT7 P4 4 INT8 P4 5 INT9 P4 6 INT10 P4 7 INT11 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 RESET NC NC VSS1 int XOUT XIN P6 0 P6 1 P6 2 P6 3 P6 4 P6 5 P6 6 P6 7 P7 7 ADC7 P7 6 ADC6 P7 5 ADC5 P7 4 ADC4 P7 3 ADC3 AVSS P7 2 ADC2 P7 1 ADC1 AVREF P7 0 ADC0 KS88C4400 80 QFP TOP VIEW EXTERNAL ADDRESS DATA BUS P0 0 P0 7 A8 A15 P1 0 P1 7 AD0 AD7 P2 0 P2 7 PORT A PORT AD PORT C A...

Page 25: ...R TC 9466 IC WRITE 57 EMPHA EMPHASIS CONTROL 18 NC NO CONNECTION 58 NC NO CONNECTION 19 CLK TC 9466 IC INTERRUPT 59 XIN RESONATOR CLOCK IN 20 NC NO CONNECTION 60 XOUT RESONATOR CLOCK OUT 21 NC NO CONNECTION 61 Vss1 GROUND 22 NC NO CONNECTION 62 NC NO CONNECTION 23 NC NO CONNECTION 63 NC NO CONNECTION 24 FLAGA TRACK ZERO CROSS CHECK 64 RESET MICOM RESET 25 FLAGC FOCUS OK CHECK 65 VCC VCC 26 GFS NOT...

Page 26: ...2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 4 4 32 16 8 16 16 16 8 16 32 8 8 8 6 3 8 13 4 17 3 32 2 16 2 5 8 16 3 2 9 Buffer DRAM 1Mbit CD Mecha BCKI LRCK DAI C2PI SBDI SBOK SBSY SFSY CLCK ACK ABCK ALRCK ADA Audio ASYC CD IF EDC ...

Page 27: ... GROUND TERMINAL 75 ACK BASE CLOCK INPUT ON FAST PLAY 26 HD1 HOST DATA INPUT 76 SBSY SUBCODE BLOCK SYNC OUTPUT 27 HD14 HOST DATA INPUT 77 SFSY SUBCODE DATA SYNC FRAME INPUT 28 HD0 HOST DATA INPUT 78 SBDI SUBCODE DATA INPUT 29 HD15 HOST DATA INPUT 79 CLCK SUBCODE DATA CLOCK OUTPUT 30 VSS GROUND TERMINAL 80 SBOK SUBCODE Q DATA FLAG INPUT 31 HDRQ DATA REQUEST TERMINAL 81 C2PI DATA CORRECTION FLAG INP...

Page 28: ...SERVO CONTROL DECODER ERROR CORECTION MICOM INTERFACE CLOCK GENERATOR CAV ADRESS STATUS LPF DA COUNTER 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 100 30 29 28 27 26 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DA PWM CONVERTOR DATA SLICER CLV ACTIVE WIDERANGE PLL TMAX VCO DVSS3 RO DVDD3 DVR LO...

Page 29: ...INAL 25 TMAX TMAX DETECTION RESULT OUTPUT TERMINAL 75 XVDD3 MICOM CLOCK DRIVING CIRCUIT 3 3V POWER TERMINAL 26 LPFN AMP REVERSE INPUT TERMINAL FOR LOW PASS FILTER 76 DVSS3 D A CONVERT R CHANNEL ANALOG GND TERMINAL 27 LPFO AMP OUTPUT TERMINAL FOR LOW PASS FILTER 77 RO R CHANNEL AUDIO OUTPUT TERMINAL 28 PVREF VREF 1 65V FOR PLL ONLY 78 DVDD3 DIGITAL ANALOG CONVERT 3 3V POWER TERMINAL 29 VCOREF VCO C...

Page 30: ...SEL 10 LDO 9 MDI 8 TNI 7 TPI 6 FPI 5 FNI 4 GMAD 3 RFGC 2 VCC 1 BOTTOM PEAK AGC AMP 20k 11k 11k 100k 100k 100k 20k 20k 50µA 20k 20k 36k 150k 60k 60k 20k 100k 150k 15k 10k 20µA 36p 50k 15k 10k 30k 16 7k 20k 48k 2 9k 83k SW1 LDC SW2 SW3 1k 1 4k 2 26k I 1 4 I 3 4 I 3 4 I 1 4 10k 238k 238k 15k 15p 24k 3 STATE DET 10p 30k 10k 10p 60k 40p 40p 12k 12k I I I I TA2119FN ...

Page 31: ...ERMINAL 15 SBAD SUB BEAM ADDITIONAL OUTPUT TERMINAL 16 FEO FOCUS ERROR SIGNAL GENERATING AMP OUTPUT TERMINAL 17 FEN FOCUS ERROR SIGNAL GENERATING AMP REVERSE INPUT TERMINAL 18 VDD 3 3V POWER SOURCE VOLTAGE TERMINAL 19 VREF VOLTAGE RATING VREF 1 6V OUTPUT TERMINAL 20 RFRP SIGNAL GENERATING AMP OUTPUT TERMINAL FOR TRACK COUNTER 21 BTC RECT SIGNAL GENERATING BOTTOM DETECTOR CONTROL TERMINAL 22 RFCT R...

Page 32: ...CNF Capacitor connection pin for phase compensation 18 SB Short Brake terminal 19 N C N C 20 FR Rotation detect terminal 21 ECR Torque control standsrd voltage input terminal 22 EC Torque control voltage input terminal 23 PS START STOP switch 24 FG FG signal output terminal 25 VCC Power supply for signal division 26 VM2 Power supply2 for driver 27 VM1 Power supply1 for driver 28 RNF Power supply f...

Page 33: ...E Vpp Output Enable Vpp NC No Connect AT27PC512 TC4S66F OE CE AND PROGRAM LOGIC OUTPUT BUFFERS DATA OUTPUTS O0 O7 Y GATING CELL MATRIX IDENTIFICATION Y DECODER X DECODER A0 A15 ADDRESS INPUTS CE OE VPP GND Vcc Mode Pin CE OE VPP Ai Outputs Read VIL VIL Ai DOUT Output Disable VIL VIH X 1 High Z Standby VIH X 1 X High Z Pid Program 2 VIL VPP Ai DIN GM Inhibit VIH VPP X 1 High Z Duct Identification 4...

Page 34: ... 2B 4 5 2Y 5 3A 3B 9 10 3Y 8 4A 4B 12 13 4Y 11 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 14 13 12 11 10 9 8 Vcc 4B 4A 4Y 3B 3A 3Y 08 INPUTS OUTPUT nA L L H H nB L H L H nY H H H L H HIGH voltage level L Low voltage level VOUT VIN VSS Vref 1 VOUT 3 VIN 2 VSS TOP VIEW KSC 1623 2SC 2412K B E C NJM3414M A INPUT 3 A OUTPUT 1 A INPUT 2 4 6 8 7 5 B INPUT B OUTPUT B INPUT GND B B V1 5V ...

Page 35: ...25 35 PQ20VZ51 20VZ51 1 2 3 3 4 5 1 2 3 4 5 Spesific IC Pin configuration Pin No Pin Name DC input VIN ON OFF control terminal VC ƒ DC output VO Output voltage minute adjustment terminal VADJ GND ...

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