Samsung SCM-7270 Service Manual
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Samsung SCM-7270 Service Manual

Samsung SCM-7270 Service Manual

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SERVICE
MUSIC CENTER
MONO/ST
POWER
ON/STANORY
DECK 1
REC/PLAY
PHONES
REC
© Samsung Electronics Co.,Ltd. July 1997
BAND
EQ PRESET
CLOCK
PRESET/MANUAL
TIMER
MEMORY
CLASSIC
POPS
TUNING
VOLUME
TUNER
TAPE
PHONO
CD
PLAY/PAUSE
STOP/CLEAR
OPEN/CLOSE
HI-SPEED DUBBING
SEARCH
SKIP
REPEAT
DISPLAY
RANDOM
INTRO
DECK 2
PLAYBACK
HIGH SPEED DUBBING
CONTINUOUS PLAY
PLAY
REW
F.FWD
STOP/EJ
PAUSE
PLAY
REW
F.FWD
STOP/EJ
PAUSE
MUSIC CENTER
SCM-7270
Manual
5. Special Circuit Descriptions
ROCK
CONTENTS
Code no. AH68-20169A

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Summary of Contents for Samsung SCM-7270

  • Page 1: Table Of Contents

    PLAYBACK 8. Electrical Parts List 9. Block Diagrams HIGH SPEED DUBBING CONTINUOUS PLAY PHONES PLAY F.FWD STOP/EJ PAUSE PLAY F.FWD STOP/EJ PAUSE 10. PCB Diagrams 11. Wiring Diagram 12. Schematic Diagrams © Samsung Electronics Co.,Ltd. July 1997 Code no. AH68-20169A...

  • Page 2: Precautions

    Examples: Handle brackets, Metal Part metal cabinets, screwheads and control shafts. The current measured should not Ohmmeter exceed 0.5 milliamp. Reverse the power- plug prongs in the AC outlet and repeat. Fig. 1-2 Insulation Resistance Test Samsung Electronics...

  • Page 3: Specifications

    Make sure that the 8. Always connect a test instrument's ground portion around the serviced part has not lead to the instrument chassis ground been damaged. before connecting the positive lead; always remove the instrument's ground lead last. Samsung Electronics...
  • Page 4 SCAN : Manufactured for Scandinavian KATSO SATEESEEN! Market. VARNING: OSYNLIG LASERSTRÅLNING NAR DENNA DEL AR OPPNAD OCH SPARREN AR URKOPPLAD BETRAKTA EJSTRÅLEN! Fig. 1-4 Warning Labels (Location: Disc Clamper, Inner Side of Unit Door or Nearby Unit Chassis ) Samsung Electronics...
  • Page 5 6. After replacing the Pickup, reopen the Short Terminal. See diagrams below: THE UNIT (1) WRIST-STRAP CONDUCTIVE SHEET FOR GROUNDING short short short short terminal terminal terminal terminal SOH-A1 SOH94T4N SOH91CI(CAR,walkman) (CMS-V10,CMS-V30) SOH91VI(LDP) (CMS-V10,CMS-V30) Samsung Electronics...
  • Page 6 Signal to noise ratio 40 dB Total harmonic distortion Frequency response 100Hz ~ 10KHz(±1dB) Signal to noise ratio 85 dB(1kHz 0dB) Compact Disc Channel separation 75 dB(1kHz 0dB) Total harmonic distortion 0.1%(1kHz 0dB) * Specifications are subject to change without notice. Samsung Electronics...
  • Page 7 Remote Control Exploded View POWER TUNER TAPE PHONO SKIP/SEARCH STOP PLAY/PAUSE PROGRAM DISPLAY REPEAT INTRO MONO/ST MEMORY BAND SLEEP PRESET/MANUAL VOLUME TUNING TUNING VOLUME EQ PRESET MUTE CLOCK TIMER Samsung Electronics...

  • Page 8: Disassembly And Reassembly

    3. Disassembly and Reassembly 3-1 Turn-Table, Cabinet-Front , Cabinet-Bottom 1. Remove Door-CD (Direction A). 2. Release 6 screws !. 3. Remove Turn-Table (Direction B). 4. Release 2 screws @. 5. Release 2 screws #. 6. Remove Front-Cabinet. Figure 3-1 Samsung Electronics...
  • Page 9 3-2 Deck-CD, Front-PCB, Cassette-Deck, Door-Cassette 1. Release 2 screws !. 2. Remove Deck-CD AssÕy. 3. Release 4 screws @. 4. Remove Deck-CD. 5. Release 17 screws #. 6. Remove Front-PCB, SUB-PCB. 7. Release 7 screws $. 8. Remove Cassette-Deck. Figure 3-2 Samsung Electronics...
  • Page 10 Disassembly and Reassembly 3-3 Cabinet-Bottom and Main-PCB 1. Release 3 screws !. 2. Remove the Main-PCB . Figure 3-3 Samsung Electronics...
  • Page 11 Disconnect the Lead-Connector assÕy 4 with soldering iron. 7. Remove the AssÕy PCB 3 with soldering iron and remove the PCB-Holder +. 8. Undo 4 screws from the CD-Shaft 7, and remove the CD-Rubber 6 and the CD-Deck ‘. Figure 3-4 Samsung Electronics...
  • Page 12 Remove the Gear (c) ( by pushing the hook. Lift the Gear(b) ). 10. Remove the Gear(a) 1. 11. Remove 2 screws 2 and the then remove the Feed-Motor 3. 12. Remove the Chassis-Deck (M) 4. Figure 3-5 Samsung Electronics...

  • Page 13: Alignment And Adjustments

    Figure 4-2 FM Auto Search Level Adjustment KT431 Oscilloscope FM antenna FM Seperation Adjustment 50Ω SSG FREQ. 98 MHz Dummy VTVM Adjustment Speaker point SEMI-VR(5KΩ) terminal (ISVR2) 5 KΩ L-CH/R-CH : Maximum (Figure 4-3) Stereo Modulator (Pilot 10%) Figure 4-3 FM Stereo Separation Adjustment Samsung Electronics...
  • Page 14 1404 KHz Repeat step 5 and 6 serveral times DC Voltmeter Input Figure 4-4 AM Frequency Coverage Adjustment Oscilloscope VTVM AM Signal Speaker Test Loop Generator Loop Antenna terminal Antenna Jack 60 cm Figure 4-5 AM Tracking Adjustment Samsung Electronics...
  • Page 15 REVERSE PLAY AZIMUTH control knob Figure 4-7 Speaker Oscilloscope VTVM Terminal (GND) In Out Figure 4-8 4-2-2 Recording Bias Adjustment Connect frequency counter KC434 and press the REC button. Adjust KT431(BIAS OSC COIL) until frequency counter reads 85 ±0.2KHz. Samsung Electronics...
  • Page 16 Raise NVR1702 and adjust the waveform so that its middle and (+) terminal to center of TP1. comes to ground of the oscilloscope, (or until the upper half Set NVR1701 to 0mV. of waveform becomes symmetrical to the bottom half,A=B). Adjust NVR1704(arrow) for normal sound. Samsung Electronics...

  • Page 17: Troubleshooting

    Connection Pins 73,31 of are soldering UIC1(LC72362) of SCON1-FCW2 is at 5V are normal Voltages at Voltages at RQ1, RQ2 and RQ702,RQ703 RFR1 are normal are normal Voltage at Check Voltage at Replace RQ701 RQ701 is normal RIC1 Samsung Electronics...
  • Page 18 Low coverage 0.9V (OQ5) connection of SCON1, ± 0.5 High coverage FCW2, FCON1 soldering of pin77 ±0.5 LW Low coverage 0.7 V of LC72362N High coverage ± 0.5 4.5V Check loop antenna soldering and connection of OL1, OL2, OT1,OT2, IT2 Samsung Electronics...
  • Page 19 Speaker connections are normal Voltages to all pins of AIC1(LA4620) Check power supply section are normal (Refer to Schematic Diagram) Voltage at base of AQ601, Check Muting circuitry AQ651(C945) is less than 0.6V Pattern & Speaker Jack normal Samsung Electronics...
  • Page 20 CLOSE S/W. Check oscillation of NXF100 Is Focus Search done properly ? (16.9344MHz). Does Laser function during Replace PICK-UP. Focus Search ? Check NIC9282 pin73 voltage Replace NIC9282. during Focus Search : 5V Replace NIC9220 or NIC9258. Samsung Electronics...
  • Page 21 Replace NIC05 Check waveform of NIC9282 Check NIC9282 soldring conditon pins 19,20 Replace NIC9270 Check waveform of NIC9270 Check NIC9270 soldering condition pins 9,12 Replace NIC9270 Check waveform of NIC9270 Check NIC9270 soldering condition pins 2,19 Check Amp. operation Samsung Electronics...

  • Page 22: Exploded Views And Parts List

    FR ARM ASS’Y ADR22-012 AH81-10022E R/P HEAD MS15R-AA2N1 AH81-10025K REEL GEAR ASS’Y 11128-00045AA AH81-10026P MGARM ASS’Y 11102-00520AA AH81-10025T ARM-SENSOR 11102-00530AA AH81-10026L BELT MAIN 59.7 PI X 1.0T AH81-10025M PAUSE LOCK CMA 11116-00011AA AH81-10026H BELT SUB 34.7 PI X 1.0T Samsung Electronics...
  • Page 23 MAIN Ð PCB FRONT Ð PCB SUB Ð PCB POWER TUNER TAPE PHONO SKIP/SEARCH STOP PLAY/PAUSE PROGRAM DISPLAY REPEAT INTRO MONO/ST MEMORY BAND SLEEP PRESET/MANUAL VOLUME TUNING TUNING PCB-MAIN AMP VOLUME EQ PRESET MUTE CLOCK TIMER CASS - DECK ASS'Y Samsung Electronics...
  • Page 24 KNOB-PLAY,L -,ABS,94HB,BLK,- AH61-10573A BRACKET-DECK SECC,-,T0.8,-,- AH61-10576A CHASSIS-MECHA ABS,94HB,-,BLK,- AH62-30107A HEAT-SINK -,AL,-,T6.0,-,WHT,- AH64-30338A CABINET-BOTTOM MIPS,94HB,T3,-,BLK,- AH61-10683A BRACKET-P/T -,SECC,-,T10,NTR,- AH59-90012W ASS’Y T/T SCM6500 AH63-30005A COVER-DUST GP150,94HB,T3.0,D/BLU AH59-10080C REMOCON-ASS’Y -,-,-,60 AH61-10739A BRKT-HEAT,SINK SECC 1.0T AH62-30110B HEAT-SINK,MAIN AL EXTRA AH64-50121A DOOR-BATTERY ABS,94HB,BLK Samsung Electronics...
  • Page 25 TRAY-MI ABS,-,BLK,-,CMS-M1 AH66-60001A BELT-PULLEY NEOPLENE,T1.5,2%,L78.8,BLK AH90-10346A ASS-Y PCB G3A8 AH39-20001F LEAD-CONNECTOR ASS’Y 51004,-,6P,300MM,1007#28 3302-000158 MAGNET-FERRITE AC,-,3500-3800G,2.6-3.2MG0E,30 AH73-10012A RUBBER-CD SI RUBBER,-,CMS-M5M6C,BLU AH61-50128B SHAFT-CD FE,D2.6,L10.5,-,- AH61-60010A SPRING-CAM ES,STS-W,PI0.2,OD3.2,-,CMS-M1 3409-000135 SWITCH-LEAF 16V,1A,70GF,SPST AH31-10021A MOTOR-DC RF-500TB,9VDC/130MA 3409-000175 SWITCH-DETECTOR 30VDC,100MA,SPST AH61-20227A HOLDER-PCB NYLON66,-,NTR,DAHP-18N,M Samsung Electronics...
  • Page 26 Exploded Views and Parts List 7-3-1 Parts List Samsung Electronics...
  • Page 27 AH66-90018A TURN-TABLE(M) ABS+GS 20% CMS-V10N AJ30-20001B PICK-UP CDP P/U SOH-A1 ROW V-P/J AH61-60055A SPRING-T/TABLE CS STS-W PI0.4 D5.7 L9.3 CMS-V10N AH31-10009A MOTOR-SPINDLE RF-310T-11400 43L 25V 85mA AH31-10002B MOTOR-FEED RF-310ta 30MM NDM4RA3ETL 11.0MM AH60-10014A SCREW-PH(+M2*3) +M2X3 FE FZY W700 Samsung Electronics...
  • Page 28 Exploded Views and Parts List 7-4 CD Deck Exploded View and Parts List 7-4-1 Exploded View Samsung Electronics...
  • Page 29 FEED ARM PM30151,ACETAL AH81-10021F SWITCH-LEAF LSB61123A3 AH81-10020G PULLEY-MOTOR PL40170,MBSBDI AH81-10020H MOTOR SHR2R6I AH81-10020J ADAPTER EP PM40030,ABS AH81-10020K SPACER Ø7.2 X Ø15 X T0.5,PE AH81-10020L BELT DRIVING PP4029, RC-WRT AH81-10020M PLATTER PM20110, M13000TV AH81-10020N E-RING AH81-10020Q SLIDE SWITCH DSS-1123 Samsung Electronics...
  • Page 30 Exploded Views and Parts List 7-5-2 Exploded View Samsung Electronics...

  • Page 31: Electrical Parts List

    IC-LCD DRIVER;LC75823E,QFP,64P,17.2X17.2,-,3 2801-001398 CRYSTAL-UNIT;4.5MHZ,50PPM,28-AAM,12PF,100OH 3602-000147 FUSE-CLIP;250V,7.5A,30MOHM 3602-000147 FUSE-CLIP;250V,7.5A,30MOHM FCW4 3711-001011 CONNECTOR-HEADER;BOX,5P,1R,2.5MM,STRAIGHT,SN 3602-000147 FUSE-CLIP;250V,7.5A,30MOHM 3602-000147 FUSE-CLIP;250V,7.5A,30MOHM AH93-30002R ASSY-FRONT-COM,TAPG ;SCM7270LCE,10W, 2202-000796 C-CERAMIC,MLC-AXIAL;1NF,10%,50V,Y5P,TP,3.5X19, UC10 2202-000796 C-CERAMIC,MLC-AXIAL;1NF,10%,50V,Y5P,TP,3.5X19,- UC11 2202-000854 C-CERAMIC,MLC-AXIAL;47NF,30%,50V,Y5R,TP,3.5X1.9,- UC12 2202-000854 C-CERAMIC,MLC-AXIAL;47NF,30%,50V,Y5R,TP,3.5X1.9,- UC13 2201-000273 C-CERAMIC,DISC;18PF,5%,50V,CH,TP,5X3MM,5 UC14 2201-000273 C-CERAMIC,DISC;18PF,5%,50V,CH,TP,5X3MM,5 UC15 2409-000123 C-EDL;47000UF,4UA,5.5V,-,BK,-,5MM Samsung Electronics...
  • Page 32 UR25 2001-000331 R-CARBON;12KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR26 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M UR27 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M UR28 2001-000890 R-CARBON;6.8KOHM,5%,1/8W,AA,TP,1.8X3.2M UR29 2001-000977 R-CARBON;8.2KOHM,5%,1/8W,AA,TP,1.8X3.2M 2001-000786 R-CARBON;47KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR30 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR31 2001-000331 R-CARBON;12KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR32 2001-000522 R-CARBON;22KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR33 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR34 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR35 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR36 2001-000702 R-CARBON;39KOHM,5%,1/8W,AA,TP,1.8X3.2MM Samsung Electronics...
  • Page 33 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW2 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW20 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW21 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW22 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW23 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW24 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW25 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW26 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW27 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW28 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW29 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS USW3 3404-000165 SWITCH-TACT;12V,50MA,160GF+-50GF,6X6MM,SPS Samsung Electronics...
  • Page 34 2001-000802 R-CARBON;5.6KOHM,5%,1/8W,AA,TP,1.8X3.2M AH90-10737K ASSY-PCB;SCM7270LCE,10W,FM ANT S.N.A AH93-10001T ASSY-MAIN,MANU;SCM7270LCE,10W, 3711-000629 CONNECTOR-HEADER;BOX,11P,1R,2.5MM,STRAIGHT,SN AH62-30061A HEAT SINK-S;AL,EXTR,WHT,40H,AV330R,-,-,- AC608 2401-001396 C-AL;470UF,20%,25V,GP,TP,10X16MM,5M AC609 2401-001925 C-AL;2200UF,20%,25V,GP,BK,16X26,7.5 3716-000209 TERMINAL-BLOCK;,-,-,60V,7A 3722-000143 JACK-PHONE;1P,3.4MM,MBAG,BLACK,- FCON1 3711-000820 CONNECTOR-HEADER;BOX,2P,1R,2.5MM,STRAIGHT,SN FEP1 AH40-10001U TUNER;FE337-A05,-,75OHM 3716-000201 TERMINAL-BLOCK;NON SOLDER,4P,4MM,-, ICF4 2802-000215 RESONATOR-CERAMIC;19KHZ,+-38HZ,-,7.0X3.5X9.0MM ICF5 2903-000148 FILTER-CERAMIC;BP,450KHZ+-1KHZ,-,6DB,-,BK,- Samsung Electronics...
  • Page 35 2202-000848 C-CERAMIC,MLC-AXIAL;1.5NF,30%,50V,Y5S,TP,3.5X1.9,- AL602 2701-000114 INDUCTOR-AXIAL;10UH,10%,2.5X3.4MM AL603 2701-000114 INDUCTOR-AXIAL;10UH,10%,2.5X3.4MM AL652 2701-000114 INDUCTOR-AXIAL;10UH,10%,2.5X3.4MM AQ601 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP,120- AQ603 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP,120- AQ651 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP,120- AR601 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M AR605 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M AR606 2001-000552 R-CARBON;270OHM,5%,1/4W,AA,TP,2.4X6.4MM AR607 2001-000525 R-CARBON;22OHM,5%,1/4W,AA,TP,2.4X6.4MM AR656 2001-000552 R-CARBON;270OHM,5%,1/4W,AA,TP,2.4X6.4MM Samsung Electronics...
  • Page 36 CR823 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM CR824 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM CR825 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M CR826 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM CR827 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M CR828 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M CR829 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M CR830 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2M CR831 2001-000977 R-CARBON;8.2KOHM,5%,1/8W,AA,TP,1.8X3.2M CR850 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM CR851 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM CSVR80 2103-000492 VR-SEMI;5KOHM,30%,1/10W,TOP 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO Samsung Electronics...
  • Page 37 C-AL;100UF,20%,16V,GP,BK,6.3X11MM,2 IC35 2401-001102 C-AL;330UF,20%,16V,GP,TP,8X12,5 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM 2301-000422 C-FILM,PEF;3.3NF,10%,50V,TP,5.5X7X3MM,5MM 2301-000393 C-FILM,PEF;18NF,10%,50V,TP,6.5X12.5X3.5MM 2202-000781 C-CERAMIC,MLC-AXIAL;100PF,10%,50V,Y5P,TP,3.5X19,- 2401-000419 C-AL;10UF,20%,16V,GP,-,4X7,5 ICF1 2903-000105 FILTER-CERAMIC;BP,10.7MHZ+-25KHZ,180KHZ+-50KH ICF2 2903-000105 FILTER-CERAMIC;BP,10.7MHZ+-25KHZ,180KHZ+-50KH 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO 2701-000116 INDUCTOR-AXIAL;10UH,10%,4.2X9.8MM 0501-000392 TR-SMALL SIGNAL;KSC838-O,NPN,250MW,TO-92,-,70- 0501-000303 TR-SMALL SIGNAL;KSA733-Y,PNP,250MW,TO-92,-,120 0504-001003 TR-DIGITAL;KSR2003,PNP,300MW,22K-22K,TO-9 0504-000118 TR-DIGITAL;KSR1003,NPN,300MW,22K-22K,TO-9 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M Samsung Electronics...
  • Page 38 2202-000809 C-CERAMIC,MLC-AXIAL;3.3NF,20%,16V,Y5R,TP,3.5X19,- JC310 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM JC311 2401-001355 C-AL;470UF,20%,10V,GP,-,8X11.5,5MM JC312 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP,3.5X19,- JC313 2401-000795 C-AL;220UF,20%,16V,GP,-,8X11.5,3.5M JC351 2202-000847 C-CERAMIC,MLC-AXIAL;1,8NF,30%,50V,Y5S,TP,3.5X1.9 JC352 2202-000847 C-CERAMIC,MLC-AXIAL;1,8NF,30%,50V,Y5S,TP,3.5X1.9 JC353 2401-001975 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 JC354 2202-000781 C-CERAMIC,MLC-AXIAL;100PF,10%,50V,Y5P,TP,3.5X19,- JC355 2202-000781 C-CERAMIC,MLC-AXIAL;100PF,10%,50V,Y5P,TP,3.5X19,- JC356 2301-000393 C-FILM,PEF;18NF,10%,50V,TP,6.5X12.5X3.5MM JC357 2202-000853 C-CERAMIC,MLC-AXIAL;4.7NF,30%,16V,Y5R,TP,3.5X1.9,- JC358 2301-000433 C-FILM,PEF;33NF,5%,50V,TP,7.5X11X4MM,5MM Samsung Electronics...
  • Page 39 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M JR373 2001-000508 R-CARBON;220KOHM,5%,1/8W,AA,TP,1.8X3.2M JW64 3301-000297 CORE-FERRITE BEAD;AA,3.6X1.2X5.7MM,1400,2900G KC401 2202-000781 C-CERAMIC,MLC-AXIAL;100PF,10%,50V,Y5P,TP,3.5X19,- KC402 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM KC403 2401-001975 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 KC404 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP,3.5X19,- KC405 2301-000476 C-FILM,PEF;82NF,10%,50V,TP,10.5X12.5X6,7M KC406 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM KC407 2202-000715 C-CERAMIC,MLC-AXIAL;1.2NF,20%,16V,Y5R,3.5X19,7.5,T KC409 2202-000807 C-CERAMIC,MLC-AXIAL;22NF,+80-20%,25V,Y5V,TP,3.5X19 KC410 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM KC431 2401-001975 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 Samsung Electronics...
  • Page 40 2001-000034 R-CARBON;220OHM,5%,1/4W,AA,TP,2.4X6.4MM KR451 2001-000802 R-CARBON;5.6KOHM,5%,1/8W,AA,TP,1.8X3.2M KR452 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP,1.8X3.2M KR453 2001-001006 R-CARBON;82OHM,5%,1/8W,AA,TP,1.8X3.2MM KR454 2001-000786 R-CARBON;47KOHM,5%,1/8W,AA,TP,1.8X3.2MM KR455 2001-000977 R-CARBON;8.2KOHM,5%,1/8W,AA,TP,1.8X3.2M KR456 2001-000802 R-CARBON;5.6KOHM,5%,1/8W,AA,TP,1.8X3.2M KR457 2001-000010 R-CARBON;68KOHM,5%,1/8W,AA,TP,1.8X3.2MM KR458 2001-000522 R-CARBON;22KOHM,5%,1/8W,AA,TP,1.8X3.2MM OC10 2201-000565 C-CERAMIC,DISC;47nF,20%,50V,Y5V,12.5x4.0mm,5mm,TP OC11 2301-000419 C-FILM,PEF;27NF,10%,50V,TP,7.5X10.5X4MM,5 OC12 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM 2202-000854 C-CERAMIC,MLC-AXIAL;47NF,30%,50V,Y5R,TP,3.5X1.9,- 8-10 Samsung Electronics...
  • Page 41 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M PR4R 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M PR5L 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM PR5R 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM PR6R 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM QC501 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM QC502 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM QC503 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM QC504 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM QC505 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM QC506 2401-000419 C-AL;10UF,20%,16V,GP,-,4X7,5 QC507 2201-000377 C-CERAMIC,DISC;220PF,5%,50V,UJ,TP,8.0X3.0,5 QC508 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM Samsung Electronics 8-11...
  • Page 42 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M QR505 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2M QR551 2001-000857 R-CARBON;560OHM,5%,1/8W,AA,TP,1.8X3.2MM QR552 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP,1.8X3.2M QR554 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M QR555 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2M RC703 2401-000303 C-AL;100UF,20%,25V,GP,TP,6.3X11,2.5 RC704 2401-001895 C-AL;100UF,20%,16V,GP,BK,6.3X11MM,2 RC705 2401-001895 C-AL;100UF,20%,16V,GP,BK,6.3X11MM,2 RC706 2401-000778 C-AL;220UF,20%,10V,GP,-,6.3X11,2.5M RC706 2401-001895 C-AL;100UF,20%,16V,GP,BK,6.3X11MM,2 RC707 2401-000303 C-AL;100UF,20%,25V,GP,TP,6.3X11,2.5 RC709 2401-000830 C-AL;220UF,20%,25V,GP,-,8X11.5,3.5M 8-12 Samsung Electronics...
  • Page 43 0402-000127 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 UQ902 0501-000610 TR-SMALL SIGNAL;KSA928A-Y,PNP,1W,TO-92L,TP,160 UQ903 0501-000010 TR-SMALL SIGNAL;KSC1008-Y,NPN,80V,60V,700MA,80 UQ904 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP,120- UQ954 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP,120- UR901 2003-000669 R-METAL OXIDE(S);390OHM,5%,1W,AA,TP,3.3X9MM UR903 2001-000042 R-CARBON;1KOHM,5%,1/4W,AA,TP,2.4X6.4MM UR904 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M UR905 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M UR906 2001-000522 R-CARBON;22KOHM,5%,1/8W,AA,TP,1.8X3.2MM UR907 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M Samsung Electronics 8-13...
  • Page 44 C-CERAMIC,CHIP;150PF,5%,50V,NPO,TP,2012,- NC101 2203-000802 C-CERAMIC,CHIP;33NF,10%,50V,X7R,2012,-,TP NC102 2203-000260 C-CERAMIC,CHIP;10NF,10%,50V,X7R,TP,2012,- NC103 2203-000260 C-CERAMIC,CHIP;10NF,10%,50V,X7R,TP,2012,- NC104 2203-001537 C-CERAMIC,CHIP;1NF,10%,50V,X7R,TP,2012,- NC107 2203-000199 C-CERAMIC,CHIP;100NF,+80-20%,50V,Z5U,TP,2012, NC108 2203-000199 C-CERAMIC,CHIP;100NF,+80-20%,50V,Z5U,TP,2012, NC109 2203-001537 C-CERAMIC,CHIP;1NF,10%,50V,X7R,TP,2012,- NC110 2203-000260 C-CERAMIC,CHIP;10NF,10%,50V,X7R,TP,2012,- NC111 2203-001105 C-CERAMIC,CHIP;6.8NF,10%,50V,X7R,TP,2012,- NC112 2203-001702 C-CERAMIC,CHIP;2.2NF,5%,50V,X7R,TP,2012,- NC113 2203-000802 C-CERAMIC,CHIP;33NF,10%,50V,X7R,2012,-,TP NC115 2203-001137 C-CERAMIC,CHIP;68NF,+80-20%,50V,Y5V,TP,2012,- 8-14 Samsung Electronics...
  • Page 45 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 NR110 2007-000409 R-CHIP;15KOHM,5%,1/10W,DA,TP,2012 NR111 2007-000941 R-CHIP;47KOHM,5%,1/10W,DA,TP,2012 NR112 2007-001039 R-CHIP;56KOHM,5%,1/10W,DA,TP,2012 NR113 2007-001177 R-CHIP;8.2KOHM,5%,1/10W,DA,TP,2012 NR114 2007-000477 R-CHIP;1MOHM,5%,1/10W,DA,TP,2012 NR115 2007-000444 R-CHIP;180KOHM,5%,1/10W,DA,TP,2012 NR116 2007-001195 R-CHIP;820KOHM,5%,1/10W,DA,TP,2012 NR117 2007-000898 R-CHIP;430KOHM,5%,1/10W,DA,TP,2012 NR118 2007-001213 R-CHIP;82OHM,1%,1/10W,DA,TP,2012 NR119 2007-000395 R-CHIP;150KOHM,5%,1/10W,DA,TP,2012 NR190 2007-000355 R-CHIP;12KOHM,5%,1/10W,DA,TP,2012 NR191 2007-000355 R-CHIP;12KOHM,5%,1/10W,DA,TP,2012 Samsung Electronics 8-15...
  • Page 46 2401-001238 C-AL;4.7UF,20%,25V,GP,BK,3X5,1MM NC700 2401-000868 C-AL;220UF,20%,4V,GP,TP,6.3X5,2.5MM NC701 2401-000868 C-AL;220UF,20%,4V,GP,TP,6.3X5,2.5MM NC702 2401-000243 C-AL;100UF,20%,10V,GP,TP,6.3X5,2.5M NC703 2401-000778 C-AL;220UF,20%,10V,GP,-,6.3X11,2.5M ND200 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO ND201 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO ND202 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO ND203 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO NIC05 AC14-12001G IC;KA78L05,T,- NQ1501 0501-000610 TR-SMALL SIGNAL;KSA928A-Y,PNP,1W,TO-92L,TP,160 NQ1502 0501-000323 TR-SMALL SIGNAL;KSB564Y,PNP,800MW,TO-92,TP,120 8-16 Samsung Electronics...
  • Page 47 Electrical Parts List Location No. Code No. Description Specification Remarks NR555 2008-000141 R-FUSIBLE;2.2OHM,5%,1/4W,AA,TP,2.6X6.7MM NVR170 2103-000007 VR-SEMI;50KOHM,30%,1/10W,SIDE NVR170 2103-000291 VR-SEMI;20KOHM,30%,1/10W,SIDE NVR170 2103-000291 VR-SEMI;20KOHM,30%,1/10W,SIDE NVR170 2103-000291 VR-SEMI;20KOHM,30%,1/10W,SIDE NXF100 2802-000211 RESONATOR-CERAMIC;16.93MHZ,0.5%,TP,10.0X5.0X10.0 NZD101 0403-000358 DIODE-ZENER;UZ5.6BSB,5.6V,5.46-5.7V,500 Samsung Electronics 8-17...
  • Page 48 Electrical Parts List Location No. Code No. Description Specification Remarks 8-18 Samsung Electronics...

  • Page 49: Block Diagrams

    9. Block Diagrams 9-1 Main IIC1 UIC1 UIC2 PLL/CD MICOM LC72362 AIC1 3(9) 14-17(20-22) JIC1 LA4620 Samsung Electronics...
  • Page 50 Block Diagrams 9-2 CD Samsung Electronics...
  • Page 51 S 38 S 12 S 37 S 13 S 36 S 14 S 35 S 15 S 34 S 16 S 33 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Samsung Electronics...
  • Page 52 25 CE LC75394E 24 DI LVROUT 23 CL 22 Vss LVRIN 21 L 1 LTOUT 20 NC LINVIN 2 19 L 2 LVref 18 NC LF 5 17 L 3 9 10 11 12 13 14 15 16 Samsung Electronics...
  • Page 53 ON OFF SLEEP REP.1 TUNED MONO STEREO TRACK AUTO 9 10 11 12 MHz MUTE OVER VOLUME VOLUME CLASSIC POPS ROCK PROGRAM INTRO RANDOM SYNC HI-DUBB com1 COM 1 SLEEP ROCK CLASSIC TRACK COM 2 com2 COM 3 com3 POPS MUTE COM 1 MONO...
  • Page 54 * NOTE : KSB564 = ‘EBC’ TYPE LB1641/BA6209(MOTOR DRIVER) : SIC1,SIC2,SIC3,NIC1641 LB1641/BA6209 VCC2 OUT1 OUT2 VCC1 8 10 Input logic circuit LB1641 KA9258 : NIC9258 LEVEL SHIFT LEVEL T S D SHIFT REGULATOR MUTE LEVEL LEVEL SHIFT SHIFT Samsung Electronics...
  • Page 55 65 66 67 78 70 71 75 74 69 73 74 76 62 61 68 79 80 1 33 57 56 19 18 17 LA4620 : AIC1 POWER Driv RL SHORT PROTECTOR POWER Driv THERMAL POP NOISE RIPPLE PROTECTION PREVENTION FILTER CIRCUIT CIRCUIT POWER Driv RL SHORT PROTECTOR POWER Driv Samsung Electronics...
  • Page 56 SMSD 3RAM ADDRESS LOCK GENERATOR X' TAL XOUT TIMING GENERATOR INTERPOLATE X' TAL C P U MDAT TIMING INTERFACE GENERATOR MCK 38 DIGITAL FILTER (BFS) TRCNT /ISTAT VREFH2 VREFH1 D A C VREFL1 MODE DIGITAL SELECTOR OUTPUT VREFL1 Samsung Electronics...
  • Page 57 AUX) POWER CONTROL PORT for TUNER FUNCTION AUDIO MUTE MUTE for AUDIO TUNER MUTE MUTE for TUNER FUNCTION PN0/BEEP OPTION INPUT PORT for OPTION DATA OPTION INPUT PORT for OPTION DATA OPTION INPUT PORT for OPTION DATA Samsung Electronics...
  • Page 58 FM & AM IF FREQUENCY INPUT PORT SUBPD AMIN AM INPUT AM OSC INPUT FMIN FM INPUT FM OSC INPUT TUNER VOLTAGE CONTROL FM TUNING VOLTAGE TUNER VOLTAGE CONTROL AM TUNING VOLTAGE TEST1 Xout OSC 4.5MHz OSC for SYSTEM CLOCK 9-10 Samsung Electronics...

  • Page 59: Pcb Diagrams

    10. PCB Diagrams 10-1 Main Samsung Electronics 10-1...
  • Page 60 PCB Diagrams 10-2 Front 10-2 Samsung Electronics...
  • Page 61 PCB Diagrams 10-3 Power Samsung Electronics 10-3...
  • Page 62 PCB Diagrams 10-4 CD 10-4-1 Top View 10-4-2 Bottom View 10-4 Samsung Electronics...

  • Page 63: Wiring Diagram

    11. Wiring Diagram NCW101 FCW2 NCW103 FCW5 FCW4 FCW3 SCON1 CCON801 JCON301 JCON302 11 PIN PCW2 UCW901 ACON1 RCW1 Samsung Electronics 11-1...

  • Page 64: Schematic Diagrams

    12. Schematic Diagrams 12-1 Main UIC2 IIC1 UIC1 AIC1 JIC1 QIC1 Samsung Electronics 12-1...
  • Page 65 Schematic Diagrams 12-2 CD 12-2 Samsung Electronics...

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