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Samsung MM-18 Service Manual

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mm18(10)
3/23/98 2:32 PM
SERVICE
MICRO COMPONENT SYSTME
Page 1
MICRO COMPONENT
SYSTEM
MM-18
Manual
CONTENTS

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Summary of Contents for Samsung MM-18

  • Page 1: Table Of Contents

    3/23/98 2:32 PM Page 1 MICRO COMPONENT SYSTEM MM-18 SERVICE Manual MICRO COMPONENT SYSTME CONTENTS 1. Precautions 2. Specifications 3. Disassembly and Reassembly 4. Alignment and Adjustments 5. Special Circuit Descriptions 6. Troubleshooting 7. Exploded Views and Parts List 8.
  • Page 2 3/23/98 2:32 PM Page 2 ELECTRONICS © Samsung Electronics Co.,Ltd. March 1998 Printed in Korea Code no. AH68-20183A...

  • Page 3: 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 4 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 5 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 6: Specifications

    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 7 Total harmonic distortion 2.5% Frequency response 20Hz ~ 20KHz(±1dB) Signal to noise ratio 90 dB(1kHz) Compact Disc Channel separation 75 dB(1kHz) Total harmonic distortion 0.1% (1KHz) Audio Output 1V (1kHz 0dB) Specifications are subject to change without notice. Samsung Electronics...

  • Page 8: Remote Control

    mm18(10) 3/23/98 2:48 PM Page 2 Remote Control...

  • Page 9: Disassembly And Reassembly

    Page 1 3. Disassembly and Reassembly 3-1 Cabinet-Top, Cabinet-Rear 1. Remove 6 screws of ! and 8 screws of @ of its rear part 2. Pull its top part upward vertically as shown in the figure 3-1 Figure 3-1 Samsung Electronics...

  • Page 10: Main Pcb

    3/23/98 2:54 PM Page 2 Disassembly and Reassembly 3-2 Main PCB 1. Pull out the Main-PCB backward horizontally. Figure 3-2 Samsung Electronics...
  • Page 11 3/23/98 2:54 PM Page 3 Disassembly and Reassembly 3-3 Cabinet-Bottom 1. Pull out the Cabinet-Bottom backward. Figure 3-3 3-4 CD-Pack 1. Undo 4 screws of ! and then remove the CD-Pack downward. Figure 3-4 Samsung Electronics...
  • Page 12 Remove the Gear (c) ) by pushing the hook. Lift the Gear(b) 1 . 11. Remove the Gear(a) 2 . 11. Remove 2 screws 3 and the then remove the Feed-Motor 4 . 12. Remove the Chassis-Deck (M) 5 . Figure 3-8 Samsung Electronics...

  • Page 13: Alignment And Adjustments

    Figure4-2 FM Auto Search Level Adjustment Oscilloscope FM Stereo Adjustment FM antenna SSG FREQ. 98MHz 75Ω Frequency 98MHz Dummy VTVM Speaker Adjustment SEMI-VR(5KΩ) Terminal point (ISVR1) 5KΩ L-CH/R-CH : Maximum(Figure 4-3) Stereo Modulator (Pilot 10%) Figure4-3 FM Stereo Separation Adjustment Samsung Electronics...
  • Page 14 594 KHz 594 KHz OL 1 Maximum output AM tracking adjustment Non Adjust AM VT(OR1) Input OKV1 GND DC Voltmeter Figure 4-4 VTVM Oscilloscope AM Signal Loop Speaker Generator Test Loop Antenna Jack Terminal Antenna 60 cm Figure 4-5 Samsung Electronics...
  • Page 15 Set the screw adjustment Press PLAY button after adjustment Speaker Cassette Deck Terminal Frequency Counter LINE OUT output Figure 4-6 Recording /Play head REVERSE PLAY AZIMUTH control knob Figure 4-7 Oscilloscope VTVM Speaker Terminal (GND) In Out Figure 4-8 Samsung Electronics...

  • Page 16: Special Circuit Descriptions

    Focus error bias can be adjusted from the range of +100mV ~ -100mV by connectiong the resistor with pin 63 (FEBIAS). 164K VB> VA> sev-stopb 160K FEBIAS sev-stop <5 Bit Counter> fcmpo FEBIAS fe-stopb Samsung Electronics...
  • Page 17 Extracting the DC part of RFI and RFO and comparing with the basic DC level, if RF Level is more than basic level, the FOK is output. The focus OK circuit generates a timing window of focus on to monitor the focus search status of focus serve. VC+0.625V Samsung Electronics...
  • Page 18 As the asymmertry due to variations in disc manufacturing can not be eilminated by thr AC coupling alone, the reference voltage of EFM comparator is controlled utilizing the fact that the generation probability of 1,0 50% each in the binary EFM signals. 100K 100K Samsung Electronics...
  • Page 19 Therefore, the output on processing monitor photo diode, must be a controlled current for getting regularly output power, thus the APC (Auto Power Control) circuit is composed. From Micom 150K 0.75K 43.5K 150K 300K 150K 5.15K LDON Samsung Electronics...
  • Page 20 If the control by MUTE signal from micom exist, and when input signal absent, two channel of right and left is builted in. CH2I CH2O GC2I GC2O GC1I GC1O GC1I CH1O MUTEI (From Micom) 5-1-11 Center Voltage Generation Circuit The Center Voltage is generated by using resistor dividing voltage. Samsung Electronics...
  • Page 21 After 10-track jumping, servo circuit gets out of the liner range and actuator,s tracking is unstable occasionally. Accordingly, unnecessary jumping with many tracking error should be prevented. 470K 680K 680K TDFCT DFCTI 66PF TRACKING 110K PHASE COMPENSATION 470K FSET Samsung Electronics...
  • Page 22 The characteristics of high frequency phase compensation in focus tracking servo and the characteristics of cut off frequecny in CLV low pass filter are test by FSET pin. SMON 220K 220K 100K SPDLO SMDP 220K 220K Double speed SPDL- FSET SMEF Samsung Electronics...

  • Page 23: Troubleshooting

    LCD lamp is ON (UQ901) & fuse normal Pins73,31 of Connection and soldering of SCON1,2 UIC1(LC72362) is at 5V are normal Voltages at RQ701,RQ702 Replace RQ701,RQ702 are normal Voltages at Replace RQ703 Check Voltage at RIC1 RQ703 is normal Samsung Electronics...
  • Page 24 (Refer to Schematic Diagram) Voltage between Check pump charge circuitry VT: AM(MW) (OQ5,OQ4) connection of SCON1, Low coverage 0.9V UCON1 soldering of pin77 LW Low coverage 0.7V of LC72362N Check loop antenna soldering and connection of OL1, OL2, OT1,OT2, IT2 Samsung Electronics...
  • Page 25 Speaker connections are normal Voltages to all pins of AIC601(TA8207) Check power supply section are normal (Refer to Schematic Diagram) Voltage at base of QQ503, Check Muting circuitry QQ553(C945) is less than 0.6V Pattern & Speaker Jack normal Samsung Electronics...
  • Page 26 Check Roulette Control Sensor Check oscillation of NXF100 Is Focus Search ok ? (16.9344MHZ) Does Laser function during Replace PICK UP Focus Search ? Check NIC9286 pin73 voltage Replace NIC9286 during Focus Search : 5V Replace NIC9223 or NIC9258 Samsung Electronics...
  • Page 27 Troubleshooting 6-2-2 Audio Output Malfunction Malfunction of Audio Output Check voltage of NIC05 : 5V Replace NIC05 Check waveform of NIC9223 Check NIC9223 soldering pin no. 12,13 Replace NIC9223 Check waveform of NC55R,L Check NIC9223 soldering Check Amp Samsung Electronics...

  • Page 28: Exploded Views And Parts List

    CAM GEAR 11128-00393AA AH81-10025R F.F GEAR 11128-00055AA AH81-10025T SENSOR ARM 11102-00530AA AH81-10026T LEAF SW(MAIN) MSW1541 X ACV AH81-10022E R/P HEAD MS15RA-A2N1 AH81-10022T E-HEAD PHK380-MS16A AH81-10026V BELT(MAIN) Ø45.5 X T1.0 AH81-10026H BELT(SUB) Ø34.7 PI X T1.0 AH81-10025U BUTTON KNOB 11133-00010AA Samsung Electronics...
  • Page 29 3/23/98 3:55 PM Page 2 Exploded Views and Parts List 7-2 Main Exploded View and Parts List 7-2-1 Exploded View Samsung Electronics...
  • Page 30 -,PMMA,-,T2.5,SMOGE,-,MM27 AH61-62007A SPRING-CD DOOR -,-,SUS27,PI1.3,OD10,- AH61-20258C CAP-P/U ABS,-,BLK AJ59-20003E DECK-CDP CMS-P30AM6 AH73-10012A RUBBER-CD SI RUBBER,-,CMS-M5M6C,BLU AH61-50182D SHAFT-CD -,MSWR,2.6,10.5,COATING,WHT AH64-32004F CABINET-REAR -,HIPS,94HB,T3,-,BLK AH62-32004A HEAT-SINK -,AL,-,t2.0,-,-,-,MM17 AH64-32006A CABINET-BOTTOM -,SECC,-,T1.0,-,-,-,MM27 AH73-10009A RUBBER(FOOT) URETAN,T1.5 PI8,MY-CD25 AH59-10124D REMOCON-ASSY BU2478-2Z,22,MM-18 AH63-30244D COVER-HIDDEN -,ABS 94HB,-,2,BLK,AR4022 Samsung Electronics...
  • Page 31 ABS 94HB AH66-90029A TURN-TABLE(M) -,-,-,CMS-V30 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 32 Specification Remarks AH59-90230A SPEAKER-SYSTEM PS17E,MM17,-,- AH81-11047A NET L 157 X 247.2 X 38.4t AH81-11047B NET R 157 X 247.2 X 38.4t AH81-11047C CABINET W138.5 X H233.5 X D180 AH81-11047D WOOFER 5`` SG12G33AFA AH81-11047Z SCREW M4 X 10 BLACK Samsung Electronics...

  • Page 33: Electrical Parts List

    0502-000303 TR-POWER;KSD882,NPN,1W,TO-126,TP,160-32 2401-001912 C-AL;1uF,20%,50V,GP,5x11mm,2mm,BK 2401-001022 C-AL;3.3UF,20%,50V,GP,-,5X11,2MM SCON1 3711-001234 CONNECTOR-HEADER;NOWALL,11P,1R,2.0mm,ANG 2401-001912 C-AL;1uF,20%,50V,GP,5x11mm,2mm,BK SCON2 3711-001234 CONNECTOR-HEADER;NOWALL,11P,1R,2.0mm,ANG TA8207 6003-000276 SCREW-TAPTITE;BH,+,B,M3,L10,ZPC(YEL),SWC ICH1 2701-000114 INDUCTOR-AXIAL;10uH,10%,2.5x3.4mm UCN901 3711-001137 CONNECTOR-HEADER;BOX,8P,1R,2mm,STRAIGHT, 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,500mW, UQ901 0502-000407 TR-POWER;KTC4369Y,NPN,15W,TO-220,BK,120 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,500mW, 0501-000392 TR-SMALL SIGNAL;KSC838-O,NPN,250mW,TO-92 3722-000377 JACK-RCA;4P/2C,3.5mm,SN,BLK,#16~22 0501-000303 TR-SMALL SIGNAL;KSA733-Y,PNP,250mW,TO-92 Samsung Electronics...
  • Page 34 0501-000010 TR-SMALL SIGNAL;KSC1008,NPN,80V,60V,700m KR409 2001-000890 R-CARBON;6.8Kohm,5%,1/8W,AA,TP,1.8x3.2m JQ303 0504-001003 TR-DIGITAL;KSR2003,PNP,300MW,22K-22K,TO- KR411 2001-000290 R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3.2mm JQ304 0501-000010 TR-SMALL SIGNAL;KSC1008,NPN,80V,60V,700m KR412 2001-000290 R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3.2mm JQ305 0504-000121 TR-DIGITAL;KSR1007,NPN,300MW,22K-47K,TO- KR413 2001-000449 R-CARBON;2.2Kohm,5%,1/8W,AA,TP,1.8x3.2m JQ306 0501-000294 TR-SMALL SIGNAL;KSA708-Y,PNP,800mW,TO-92 KR415 2001-000290 R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3.2mm JQ355 0504-000121 TR-DIGITAL;KSR1007,NPN,300MW,22K-47K,TO- KR431 2001-000857 R-CARBON;560ohm,5%,1/8W,AA,TP,1.8x3.2mm Samsung Electronics...
  • Page 35 TR-SMALL SIGNAL;KSC945,NPN,250mW,TO-92,T QC553 2401-001912 C-AL;1uF,20%,50V,GP,5x11mm,2mm,BK UQ954 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250mW,TO-92,T QC554 2401-001912 C-AL;1uF,20%,50V,GP,5x11mm,2mm,BK UR902 2001-001138 R-CARBON(S);390ohm,5%,1/2W,AA,TP,2.4x6.4 QC555 2401-002180 C-AL;2.2UF,20%,50V,GP,TP,5X11,5MM UR903 2001-000522 R-CARBON;22Kohm,5%,1/8W,AA,TP,1.8x3.2mm QC556 2202-000820 C-CERAMIC,MLC-AXIAL;5.6NF,20%,16V,Y5R,TP UR904 2001-000429 R-CARBON;1Kohm,5%,1/8W,AA,TP,1.8x3.2mm QC557 2202-000807 C-CERAMIC,MLC-AXIAL;22NF,+80-20%,25V,Y5V UR905 2001-000734 R-CARBON;4.7Kohm,5%,1/8W,AA,TP,1.8x3.2m QC558 2202-000807 C-CERAMIC,MLC-AXIAL;22NF,+80-20%,25V,Y5V UR906 2001-000563 R-CARBON;27Kohm,5%,1/8W,AA,TP,1.8x3.2mm Samsung Electronics...
  • Page 36 2201-000300 C-CERAMIC,DISC;1nF,20%,50V,Y5T,TP,5x3,5 USW6 3404-000165 SWITCH-TACT;12V,50mA,160gf+-50gf,6x6mm,S 2201-000565 C-CERAMIC,DISC;47nF,20%,50V,Y5V,12.5X4.0 USW7 3404-000165 SWITCH-TACT;12V,50mA,160gf+-50gf,6x6mm,S USW8 3404-000165 SWITCH-TACT;12V,50mA,160gf+-50gf,6x6mm,S 2202-000854 C-CERAMIC,MLC-AXIAL;47NF,30%,50V,Y5R,TP, USW9 3404-000165 SWITCH-TACT;12V,50mA,160gf+-50gf,6x6mm,S 2202-000796 C-CERAMIC,MLC-AXIAL;UP050B102KB 1NF,10%, AH39-20560S LEAD CONNECTOR-ASSY;-,5264,-,8P,250mm,25 UD11 0402-000127 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 UD12 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,500mW, AH39-50001H LEAD-FASTEN;RING,1007#24,100MM,BLK UD13 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,500mW, UD14 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,500mW, Samsung Electronics...
  • Page 37 2007-000029 R-CHIP;0ohm,5%,1/10W,DA,TP,2012 IC9286 0904-001159 IC-DSP;9286,8BIT,QFP,80P,-,1MHz,TR,CM NJR107 2007-000033 R-CHIP;0ohm,5%,1/8W,DA,TP,3216 NC100 2203-000892 C-CERAMIC,CHIP;4.7nF,10%,50V,X7R,TP,2012 NJR108 2007-000033 R-CHIP;0ohm,5%,1/8W,DA,TP,3216 NC101 2203-000802 C-CERAMIC,CHIP;33nF,10%,50V,X7R,TP,2012, NJR110 2007-000029 R-CHIP;0ohm,5%,1/10W,DA,TP,2012 NC102 2203-001551 C-CERAMIC,CHIP;1.5nF,10%,50V,X7R,2012,2m NJR111 2007-000033 R-CHIP;0ohm,5%,1/8W,DA,TP,3216 NC103 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012, NJR112 2007-000033 R-CHIP;0ohm,5%,1/8W,DA,TP,3216 NC104 2203-001537 C-CERAMIC,CHIP;1nF,10%,50V,X7R,TP,2012,- NJR113 2007-000033 R-CHIP;0ohm,5%,1/8W,DA,TP,3216 Samsung Electronics...
  • Page 38 R-CHIP;150Kohm,5%,1/10W,DA,TP,2012 NR104 2007-000338 R-CHIP;120Kohm,5%,1/10W,DA,TP,2012 NC703 2401-001364 C-AL;470UF,20%,16V,GP,TP,10X12MM,5M NR105 2007-000830 R-CHIP;39Kohm,5%,1/10W,DA,TP,2012 NC704 2401-000778 C-AL;220uF,20%,10V,GP,-,6.3x11,2.5m NC902 2401-000243 C-AL;100UF,20%,10V,GP,TP,6.3X5,2.5M NR106 2007-000338 R-CHIP;120Kohm,5%,1/10W,DA,TP,2012 NC903 2401-001238 C-AL;4.7UF,20%,25V,GP,BK,3X5,1MM NR107 2007-000338 R-CHIP;120Kohm,5%,1/10W,DA,TP,2012 NIC05 AC14-12001G IC;KA78L05,T,- NR108 2007-000941 R-CHIP;47Kohm,5%,1/10W,DA,TP,2012 NR109 2007-000282 R-CHIP;100Kohm,5%,1/10W,DA,TP,2012 NJW108 3301-000297 CORE-FERRITE BEAD;AA,3.6x1.2x5.7mm,1400, Samsung Electronics...
  • Page 39 3/23/98 4:08 PM Page 7 Electrical Parts List Location no. Code no. Description & Specifiation Remarks Location no. Code no. Description & Specifiation Remarks NQ1501 0501-000610 TR-SMALL SIGNAL;KSA928A-Y,PNP,1W,TO-92L, NR555 2008-000141 R-FUSIBLE;2.2ohm,5%,1/4W,AA,TP,2.6x6.7mm AJ59-20003E DECK-CDP;CMS-P30AM6,-,-,-, CMSP30AM6 DECK CD;BASIC Samsung Electronics...

  • Page 40: Block Diagrams

    3/23/98 4:17 PM Page 9-1 9.Block Diagrams 9-1 Main Samsung Electronics...
  • Page 41 3/23/98 4:17 PM Page 9-2 Block Diagrams Block Diagrams 9-2 CD VREF LOCK.SMEF.WDCH.SMON.SMSD RESET MCK. MDATA. MLT ISTAT SQDT. LKFS. SOS1 SQCK R-CH A. GND L-CH Samsung Electronics...
  • Page 42 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 43 B.S.1 OUT-1 DIAS CIACUIT RIPPLB THERMAL SHUT DOWN PROTECTION CIRCUIT OUT-2 B.S.2 LA1851N : IIC1 PILOT FM-IF FM-DET TRIG DRIV FM LEVEL COMP 19KHz 19KHz 38KHz 90° 0° DECOD- MUTE V-REG AM-IF AM-DET IF-BURR ST-SW (6dB) 14 15 Samsung Electronics...
  • Page 44 L OUT LEFT L-N3 100K L-N4 100K 0/30dB I CBUS DECDER + LATCHES 2dB STEP R-N1 DIGGND 100K R-N2 100K SPKR ATT VOLUME TREBLE MIDDLE BASS R OUT RIGHT R-N3 Verf 100K R-N4 INPUT MULTIPLEXER AGND 100K GAIN Samsung Electronics...
  • Page 45 Page 9-6 Block Diagrams LE0731A : ULCD1 SLEEP REP.1 TUNED MONO STEREO TRACK AUTO CLASSIC POPS ROCK PROGRAM INTRO CD -SYNC COM1 COM1 SLEEP COM2 COM2 COM3 COM3 COM1 MONO INTRO AUTO COM2 STEREO PROGRAM COM3 MHz CD-SYNC Samsung Electronics...
  • Page 46 KSR1003 A928 * NOTE : KSB564 = ‘EBC’ TYPE KA9258 : NIC9258 28 27 26 25 24 23 22 21 20 19 18 17 16 15 REGULATOR T • S • D MUTE 10 11 12 13 14 Samsung Electronics...
  • Page 47 CONTVOL DPLL DPFIN FRAME SYNC DETECTOR DPFOUT PROTECTOR DPDO INSERTOR SMEF SMON CLV SERVO SMDP SMSD SRAM LOCX X-TAL XOUT TIMING OSCILATOR SRAM ADDRESS MDAT TRACK CENERATOR INTERFACE COUNTER DSPEED CNIN /ISTAT DIGITAL INTERPOLATOR MODE DSPEED OUTPUT SELECTOR Samsung Electronics...
  • Page 48 FS1 to TM to BAL1 to PS1 to GA1 to Equalizer SPDL- BAL5 Spindle Servo LPF (Double Speed) SMDP SMON SMEF Comparator FSET MIRROR MIRROR DETECTION CIRCUIT Defect Dectection Built-in Post Filter Amp (L&R) Circuit FOK DETECTION CIRCUIT Samsung Electronics...
  • Page 49 When SD SIGNAL is L MODE : ACTION HIGH SPEED MOTOR CTL HIGH SPEED TAPE PLAY TAPE REC CD SYNCHRO RECORDING CONTROL TAPE REC INDICATE FRAME SYNCHRONIZATION STATUS LKFS SOSI SUBCODE SYNCHRONIZATION SIGNAL CD TEST CD PROGRAM CHECK 9-10 Samsung Electronics...
  • Page 50 FM & AM IF FREQUENCY INPUT PORT SUBPD AMIN AM INPUT AM OSC INPUT FMIN FM INPUT FM OSC INPUT FM TUNING VOLTAGE FM TUNING VOLTAGE FM TUNING VOLTAGE AM TUNING VOLTAGE TEST1 Xout OSC for SYSTEM CLOCK OSC for SYSTEM CLOCK Samsung Electronics 9-11...
  • Page 51 VSSA Analog VSS for servo part Micom clock input pin MDATA Micom data input pin Micom data latch input pin RESET Reset input pin MIRROR The mirror output for test The output pin of focus OK comparator 9-12 Samsung Electronics...
  • Page 52 The input pin for AGC The output pin for AGC The input pin for EFM comparating CAGC The capacitor connection pin for AGC Feedback input pin of E I/V amplifier for EF Balance control GND for RF part Samsung Electronics 9-13...
  • Page 53 Mute control input (“H”: Mute ON) Latch Signal input from Micom (Schmit Trigger) MDAT Latch Signal input from Micom (Schmit Trigger) Latch Signal input from Micom (Schmit Trigger) SRAM data I/O port8 (MSB) SRAM data I/O port7 9-14 Samsung Electronics...
  • Page 54 Spindle Motor drive (Velocity control in the PHASE mode) BCKI Audio data bit clock input of 48 bit/Slot (2.1168MHz) TESTV TEST input terminal (GND connection) DSPEED TEST input terminal (VDD connection) LRCHI Channel clock input of 48 bit/Slot (44.1KHz) Samsung Electronics 9-15...

  • Page 55: Pcb Diagrams

    3/23/98 4:26 PM Page 1 10. PCB Diagrams 10-1 Main 10-1 Samsung Electronics...
  • Page 56 3/23/98 4:26 PM Page 2 PCB Diagrams 10-2 SUB (Front/Power/Mic) Samsung Electronics 10-2...
  • Page 57 3/23/98 4:26 PM Page 3 PCB Diagrams 10-3 CD 10-3 Samsung Electronics...

  • Page 58: Wiring Diagram

    3/23/98 4:36 PM Page 1 11. Wiring Diagram 11-1 Samsung Electronics...

  • Page 59: Schematic Diagrams

    FUNCTION & VR CONT QIC501 ASP601 TDA7439 WOOFER TERMINAL SPK(1/2) PRE/REC AMP JIC301 KA22291 AIC601 R/P HEAD TA8207K POWER AMP E-HEAD ASP651 WOOFER TERMINAL SPK(1/2) PT701 TRANS POWER VDE/B.S(230V/240V 50Hz) AC CORD MIC MIXING(OPTION) AUX JACK UCN901 TO CDP PCB 12-1 Samsung Electronics...
  • Page 60 3/23/98 4:41 PM Page 2 Schematic Diagrams 12-2 CD G3X8(KB9223 + KS9286) SCHEMATIC DIAGRAM NIC9223 NCW100 KB9223 ASSP NIC9286 KS9286 DSP&D/ACON NIC9258 KA9258 1-CD 3-CD NIC1641/SIC2 SIC1 LB1641 NCW104 Samsung Electronics 12-2...
  • Page 61 mm18(5) 3/23/98 4:41 PM Page 3 Voltage Table KB9223 KB9223 KA9258 KB9223 KB9223 IC Name IC Name STOP MODE PLAY MODE STOP MODE PLAY MODE STOP MODE PLAY MODE STOP MODE PLAY MODE STOP MODE PLAY MODE 2.5V 4.5V 2.5V 4.5V 2.5V 2.5V...

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