Samsung MAX-610 Скачать руководство пользователя страница 17

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6. Troubleshooting

6-1 Amplifier

6-1-1 Power Malfunction

Front PCB

-com VDD(5V)

normal?

UIC1 pins 18,47,90

Replace RIC1

Main PCB RIC1(BA3950) IN: 23V

Input voltage normal?

Yes

Check the Power PCB;
RD7,8,13(1N5392)

Yes

Front PCB

Does UX1(12MHz)

oscillate ?

FRONT PCB PWR-SENS

voltage normal ?

(pin 27 ; 5V)

Check the Main PCB
RD16,RR10,11,12,RC12
RD9

Yes

Front PCB

When the power is

ON 'H' displays

at pin 5 ?(5V)

Yes

Connect Front PCB and Main PCB.

Check the connector Main PCB.

Wafer MCW2

Replace

-com.

Yes

Check the Power PCB : P/T, FUSE

Samsung Electronics

6-1

Содержание MAX-610

Страница 1: ...VICEManual 3CD CHANGER MINI COMPONENT 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 Electrical Parts List 9 Block Diagrams 10 PCB Diagrams 11 Wiring Diagram 12 Schematic Diagrams ...

Страница 2: ...rrent for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe etc and all exposed metal parts Examples Handle brackets metal cabinets screwheads and control shafts ...

Страница 3: ...nplug the unit s AC power cord from the AC power source before attempting to a Remove or reinstall any component or assembly b Disconnect an electrical plug or connector c Connect a test component in parallel with an electrolytic capacitor 3 Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used The internal wiring may be clamped to preve...

Страница 4: ...ou are ready to install it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into which the device will be installed 9 Minimize body motions when h...

Страница 5: ...tical Pickup Follow this procedure 2 Place a conductive sheet on the work bench i e the black sheet used for wrapping repair parts Note The surface of the work bench should be covered by a copper ground plane which is grounded 3 The repair technician must wear a wrist strap which is grounded to the copper sheet 4 To remove the Optical Pickup block Place the set on the conductive sheet and momentar...

Страница 6: ...nal to noise ratio IF rejection ratio Total harmonic distortion Frequency range Usable sensitivity IF rejection ratio Frequency range WOW FLUTTER Erasing effect Signal to noise ratio Total harmonic distortion Frequency response Signal to noise ratio Channel separation Total harmonic distortion 125Hz 12 5KHz 0 15 60 dB 40 dB 2 5 20Hz 20KHz 1dB 90 dB 1kHz 0dB 80 dB 1kHz 0dB 0 05 1kHz 0dB 87 5 108MHz...

Страница 7: ...3 Disassembly and Reassembly 3 1 Cabinet Top 1 Remove 11 screws holding the Cabinet Top 2 Lift the back of the Cabinet Top and slide it to the rear to remove Figure 3 1 Samsung Electronics 3 1 ...

Страница 8: ... 1 After power is connected Turn power on and open the tray using the open close key 2 After disconnecting power Turn the Gear clockwise using the hand as shown in figure 3 2 1 Pull the Tray in the direction of arrow 3 Remove 4 screws and lift the CD Mecha 4 4 2 Tray 1 5 Figure 3 2 1 ...

Страница 9: ...et Rear and slide it to rear to remove see arrow 2 Remove the Main PCB 1 Remove 5 screws 2 Remove the Cabinet Bottom by pushing the A and B as shown 7 6 5 A B 8 8 8 Figure 3 3 Figure 3 4 3 4 Cabinet Front and Cabinet Bottom Samsung Electronics 3 3 Disassembly and Reassembly ...

Страница 10: ...msung Electronics Disassembly and Reassembly 3 5 CD Mecha 13 8 2 7 6 5 4 9 3 1 10 17 16 12 11 20 15 21 14 19 CD SUB PCB TRAY DISC ASS Y TRAY STOPPER CD MAIN PCB HOOK BASE MAIN 18 Refer to the next page for timming point ...

Страница 11: ... Main by turning it 2 Push the Slider Cam towards right then lift it up to remove 3 Remove the Gear Tray from the Base Main by releasing the fixed hook 4 Remove the Gear Converter from the Base Main by releasing the fixed hook 5 Remove the Gear Cam from the Base Main by releasing the fixed hook 6 Remove the Belt from the Pulley Motor Ass y 7 the Gear Pulley 7 Remove the Gear Pulley from the Base M...

Страница 12: ...nstall in reverse order Align the Gear Cam with the Gear Tray as shown ing Figure 3 6 then mount the Tray Disc When assembling the Tray Disc take extreme care not to engage the Gear Synchro Gear Cam Gear Cam Gear Cam Gear Cam Timming Point Gear Cam Gear Synchro Gear Disc Insert ...

Страница 13: ...ing T Table 5 Remove the Turn Table M 6 Remove 2 screws and then remove the Spindle Motor 7 Remove the Cover Gear by pushing the hook 8 Remove the Gear c by pushing the hook 9 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 Disassembly and Reassembly 3 4 5 6 12 2 1 8 9 10 11 13 14 7 ...

Страница 14: ...justment Adjust MSR1 so that TUNED of FLT is lighted Figure 4 2 Figure 4 2 FM Auto Search Level Adjustment Figure 4 1 IF CENTER and THD Adjustment SSG FREQ Adjustment point MSR1 98 MHz SEMI VR 5KB FM SSG GND 30 dB FM SSG Output GND Speaker Terminal FM Antenna Terminal Distortion Meter Input SET Input output Oscilloscope 75Ω Dummy FM IN FM Antenna SET 5 KΩ IFT6 FM T H D MSR1 FM TUNED ...

Страница 15: ...rewto playbackREV Mode Maxoutput andsamephase bothchannels After adjustment secureitwith REGION LOCK 100mV 0 5dB L CH TurnDSR4L totherightand left R CH Fixed Seethe diagramfor adjustment locations Remark Standard To Adjust Pre Setup Item Step Pre Setup Condition Sameas above AfterputtingMTT 114NAintoDeck1 1 PressFWDPLAY button 2 PressREVPLAY button PLAYMTT 112B onDeck1 PlayBack out Level AZIMUTH 1...

Страница 16: ...igure 4 3 4 To Adjust E F Balance PLAY mode 1 Set Time Div of the oscilloscope to 2mS 2 Set Volt Div of the oscilloscope to 0 5V 3 Ground the scope input and set to DC and then set the DC range 4 Connect the ground terminal of the oscilloscope to Vref and terminal to center to AP2 5 Load and play the disc 6 Turn WVR1 counterclockwise to the minimum value 7 Raise WVR3 and adjust the waveform so tha...

Страница 17: ...the Power PCB RD7 8 13 1N5392 Yes Front PCB Does UX1 12MHz oscillate FRONT PCB PWR SENS voltage normal pin 27 5V Check the Main PCB RD16 RR10 11 12 RC12 RD9 Yes Front PCB When the power is ON H displays at pin 5 5V Yes Connect Front PCB and Main PCB Check the connector Main PCB Wafer MCW2 No Replace µ com Yes No No No No Check the Power PCB P T FUSE No Samsung Electronics 6 1 ...

Страница 18: ...dering condition Main PCB AIC101 STK4121 Option pins 9 11 12 14 B B circuits Check the B power source part in RD1 PBL403 RC2 3 and RIC1 Yes Confirm for TR short replace it Check if the output line is short No No No No Yes Yes FIC3 NJU3718 pin 27 Check the H No Replace FIC3 NJU3718 No 6 2 Samsung Electronics Troubleshooting ...

Страница 19: ...L ok Yes Yes Check MIC2 pin 20 LPF MLPF 1L 1R output ok Check TDA7318 function ok Check FEP interior pattern and any line disconnections No Yes Check for µ com IC Replace LC72131 No MZD1 5 6V Voltage ok MIC2 LC72131 FM AM BAND Switching ok No No No No No No No 0 9V 7V Check MZD2 8 2V MR29 No 1 Power section defective 2 LC72131 Oscillator HX1 7 2MHz ok 3 System line ok Samsung Electronics 6 3 Troub...

Страница 20: ...Check voltage AC 4 8V at FRONT PCB FLT No Check Main PCB Front PCB connection and the voltage of CCW1 pins 1 2 AC4 8V Yes Check voltage at UIC1 pin 48 33V No Check the voltage of RZD1 33V Reinsert the connector Replace UIC1 6 4 Samsung Electronics Troubleshooting ...

Страница 21: ... R P SIGNAL DECK OUTPUT OF IC AMPS BIAS OSC µ com UIC1 VF DISPLAY Drive VF DISPLAY Oscillate RECORD BIAS 105KHz Oscillate RECORD BIAS 105KHz Control DECK MECHA Control VF DISPLAY Control MUTE circuit Control each circuit Check for RESET When power is turned ON Check VF DISPLAY TP2 check Osc Frequency 105KHz When inoperative Check LQ4 LQ5 DQ1 1R Gate check TAPE IC JIC1 BA3442AKS Mode REC PLAY DQ1L ...

Страница 22: ...es No No Check Roulette Motor Is Roulette Control ok Check Roulette Control Sensor No No Yes Yes Is Focus Search ok Check oscillation of NXF100 Yes Yes No No Does Laser function during Focus Search 5V Replace PICK UP Replace NIC9282 Replace NIC9220 or NIC9258 16 9344MHz CLOSE condition 0V Check NIC9282 pin3 voltage during Focus Search 6 6 Samsung Electronics Troubleshooting ...

Страница 23: ... Troubleshooting Check voltage of NIC05 5V No Check waveform of NIC9282 pins 19 20 Check waveform of NIC9270 pins 9 12 Replace NIC9270 Check NIC9270 soldering Yes Replace NIC05 Check Amp Malfunction of Audio Output Yes Yes Yes No No Check NIC9282 soldering ...

Страница 24: ...7 Exploded Views and Parts List 7 1 Cassette Deck Exploded View and Parts List 7 1 1 Cassette Deck Exploded View 7 5 12 14 11 4 9 2 10 9 4 3 7 6 13 14 11 8 1 Samsung Electronics 7 1 ...

Страница 25: ...0305A AH61 60306A AH64 40417C AH64 40418B AH61 20457B AH64 70003B AH59 20004J AH64 30352A AH64 80032A AH31 10020A AH61 10627A AH62 30105A AH64 30389D AH61 20363A AH67 10108A AH59 10095A AH39 10002L CABINET TOP DOOR TRAY CABINET FRONT LENS CD HOLDER CD KNOB CD OPEN LENS FUNCTION KNOB DECK KNOB REMAKE LENS REMAKE KNOB POWER KNOB SRS LENS SRS KNOB ENTER HOLDER FUNCTION HOLDER DECK ASS Y LATCH DAMPER ...

Страница 26: ...0 21 39 PCB POWER 16 8 10 15 7 6 5 9 14 13 12 11 4 26 27 2 28 29 30 33 34 31 35 32 3 24 23 22 20 21 PCB CD 36 25 40 46 47 43 48 7 2 Main Exploded View and Parts List 7 2 1 Exploded View Exploded Views and Parts List Samsung Electronics 7 3 ...

Страница 27: ...0044A AH66 20193A AH66 90056A AH66 90055A AH59 10099A AH59 10100A AH59 10101A AH66 30086A AH73 10016A AJ59 20003F SLIDER CAM BELT LOAD GEAR PULLEY GEAR LOAD GEAR CAM GEAR TRAY GEAR CONVERT GEAR SYNCRO ASSY TRAY DISC ASS WORM MOTOR CUSHION MOTOR GEAR ROULETTE TRAY ROULETTE TRAY DISC ASSY PCB SENSOR ASSY TABLE CHUCK ASSY PULLEY MOTOR LEVER LIFTER RUBBER CD DECK CDP ABS HF 380 NTR CR POM M90 44 WHT P...

Страница 28: ...Samsung Electronics 7 5 7 4 CD Deck Exploded View and Parts List 7 4 1 Exploded View 3 4 5 6 12 2 1 8 9 10 11 13 14 7 Exploded Views and Parts List ...

Страница 29: ... PICK UP CDP SPRING T TABLE MOTOR SPINDLE MOTOR FEED SCREW PH M2 3 CMS P30NM6 CMSA30 POM M90 44 CMS V30 BLK ABS CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z13 SP POM CMS V30 M0 3 Z16 Z90 SP POM CMS V30 D3 L79 SUS420J2 ABS GS 20 CMS V10N ABS GS 20 CMS V10N P U SOH A1 ROW V P J CS STS W PI0 4 D5 7 L9 3 CMS V10N RF 310T 11400 43L 25V 85mA RF 310ta 30MM NDM4RA3ETL 11 0MM M2X3 FE FZY W700 12001 0052 02 13313...

Страница 30: ...7OHM 5 2W AA TP 4X12MM AR1L 1R 2R BR8L 8R 2001 000429 R CARBON 1KOHM 5 1 8W AA TP MR25 AR2L DR58 KR1 QR1L 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 AR3R 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM AR3R 2007 000572 R CHIP 220OHM 5 1 10W DA TP 2012 AR4L 4R 9L 9R DR15 2007 001039 R CHIP 56KOHM 5 1 10W DA TP 2012 QR5L AR5 6 2001 001088 R CARBON S 1KOHM 5 1 2W AA TP 2 4X6 4MM AR5L 5R 2007 0005...

Страница 31: ...001 000924 R CARBON 680OHM 5 1 8W AA TP 1 8X3 2MM DR28 2007 000830 R CHIP 39KOHM 5 1 10W DA TP 2012 DR2L 2R 2007 001201 R CHIP 820OHM 5 1 10W DA TP 2012 DR31L 31R 2007 000029 R CHIP 0OHM 5 1 10W DA TP 2012 DR33L 33R JR10 J32 2007 000029 R CHIP 0OHM 5 1 10W DA TP 2012 DR34 37 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM DR3L 3R 2007 000947 R CHIP 47OHM 5 1 10W DA TP 2012 DR40L RR13 18 2007 00...

Страница 32: ...2M FR3 2001 000111 R CARBON 150OHM 5 1 4W AA TP 2 4X6 4MM FR4 JW13 2001 000449 R CARBON 2 2KOHM 5 1 8W AA TP 1 8X3 2M FR4L 4R QR3L 3R 4L 4R 2007 000872 R CHIP 4 7KOHM 5 1 10W DA TP 2012 FR5 2003 000473 R METAL OXIDE S 10OHM 5 3W AA TP 6X16MM FR6 2001 000613 R CARBON 3 9KOHM 5 1 8W AA TP 1 8X3 2M FZD1 0403 000372 DIODE ZENER UZ9 1BM 9 1V 8 5 9 6V 500MW HJK1 3722 000363 JACK PHONE 9P 6 4MM AU BLK HQ...

Страница 33: ...50V X7R 2012 TP MC16L 16R 2203 000802 C CERAMIC CHIP 33NF 10 50V X7R 2012 TP MC17 20 25 RC9 2401 001912 C AL 1UF 20 50V GP 5X11MM 2MM BK MC19L 19R JC2L 2R 2401 001954 C AL 4 7UF 20 50V GP 5X11MM 5 TP RC23 MC2 8 10 22 JC10L 10R 2203 000979 C CERAMIC CHIP 47NF 10 50V X7R 2012 TP MFC1 MC26 2203 000408 C CERAMIC CHIP 180PF 5 50V NPO 2012 TP MC27 JC30 2202 000796 C CERAMIC MLC AXIAL 1NF 10 50V Y5P 3 5X...

Страница 34: ... 03 3P 200MM 2547 28 QC1L 1R FC4L 4R 2401 000419 C AL 10UF 20 16V GP 5X11 5 MC12 QR2L 2R JR11L 11R 2007 000941 R CHIP 47KOHM 5 1 10W DA TP 2012 QR5R 2001 000869 R CARBON 56OHM 5 1 8W AA TP 1 8X3 2MM R P DECK 3708 000447 CONNECTOR FPC FC PIC 13P 1 5MM STRAIGHT R P HEAD 3711 001011 CONNECTOR HEADER BOX 5P 1R 2 5MM STRAIGHT SN R P HEAD AH39 20019C LEAD CONNECTOR ASS Y EHR 5264 5P 350MM 2547 24 RC1 3 ...

Страница 35: ...0KOHM 5 1 2W AA TP 2 4X6 4MM RR34 2007 000241 R CHIP 1 5KOHM 5 1 10W DA TP 2012 RR35 2001 000065 R CARBON 10KOHM 5 1 4W AA TP 2 4X6 4MM RR36 2003 000471 R METAL OXIDE S 10OHM 5 2W AA TP 4X12MM RR39 2001 000508 R CARBON 220KOHM 5 1 8W AA TP 1 8X3 2M RR6 13954 500 210 CERAMIC PIPE PI1 4 7MM RR6 2003 000736 R METAL OXIDE S 560OHM 5 3W AA TP 6X16MM RR9 1 36 1 13954 100 310 CERAMIC PIPE PI1 4 15MM WHT ...

Страница 36: ...00953 C CERAMIC CHIP 470PF 5 50V NPO 2012 TP UD1 3 4 5 6 7 8 9 0401 000101 DIODE SWITCHING 1N4148 100V 200MA 500MW 4NS DO UD12 22 0402 000125 DIODE RECTIFIER 1N4001 50V 1A DO 41 TP UD13 30 2 201 202 203 0401 000101 DIODE SWITCHING 1N4148 100V 200MA 500MW 4NS DO UIC1 AH09 10061P IC MCU LC866232A 5847 100P QFP MAX743 UIC2 AH14 10004L IC NJU3718 SOP BULK UIC201 1201 000214 IC OP AMP 2100 SOP 8P DUAL ...

Страница 37: ...HIP 150OHM 5 1 10W DA TP 2012 UR70 171 76 2007 000401 R CHIP 150OHM 5 1 10W DA TP 2012 UR73 71 72 2007 000290 R CHIP 100OHM 5 1 10W DA TP 2012 UR84 85 86 87 88 89 2007 000872 R CHIP 4 7KOHM 5 1 10W DA TP 2012 UR90 91 92 93 94 2007 000872 R CHIP 4 7KOHM 5 1 10W DA TP 2012 UR95 161 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM UR96 97 98 2007 000282 R CHIP 100KOHM 5 1 10W DA TP 2012 UR99 203 20...

Страница 38: ...5NM ULD24 51 0601 000245 LED ROUND RED 3 1MM 650NM ULD41 42 43 44 4 5 0601 000180 LED INVERTER ORG 3MM 610NM ULD7 6 9 10 12 13 15 16 0601 000141 LED ROUND GRN 3 1MM 555NM ULD8 11 14 17 25 0601 000180 LED INVERTER ORG 3MM 610NM UQ1 2 3 4 6 11 12 13 0504 000122 TR DIGITAL KSR1009Y NPN 300MW 4 7K TO 92 UQ21 0504 000122 TR DIGITAL KSR1009Y NPN 300MW 4 7K TO 92 UQ5 7 10 0501 000398 TR SMALL SIGNAL KSC9...

Страница 39: ... 7 8 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM SPS USW17 18 19 20 21 22 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM SPS USW23 24 USW25 26 27 28 29 30 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM SPS USW35 36 37 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM SPS USW41 42 43 44 45 3404 000165 SWITCH TACT 12V 50MA 160GF 50GF 6X6MM SPS USW46 47 48 49 3404 000165 SWITCH TACT 12V 5...

Страница 40: ...1501 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 NR101 2007 000593 R CHIP 22OHM 5 1 10W DA TP 2012 NR102 109 205 45L 45R 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 NR103 119 2007 000395 R CHIP 150KOHM 5 1 10W DA TP 2012 NR105 2007 000830 R CHIP 39KOHM 5 1 10W DA TP 2012 NR106 107 2007 000338 R CHIP 120KOHM 5 1 10W DA...

Страница 41: ... SCW1 3711 002579 CONNECTOR HEADER WALL 22P 1R 2 5MM ANGLE SCW2 3708 000507 CONNECTOR FPC FC PIC 12P 1 25MM ANGLE SN SCW3 AH39 20025T LEAD CONNECTOR ASSY 51004 08 35023 08 8P 150MM 1 SCW4 AH39 20025S LEAD CONNECTOR ASSY 51004 08 35023 08 8P 300MM 1 SIC1 2 1003 000298 IC MOTOR DRIVER LB1641 SIP 10P ST PLASTI SIC3 AC14 12001G IC KA78L05 T SL1 2701 000179 INDUCTOR AXIAL 33UH 10 4 2X9 8MM SR1 2 5 2001...

Страница 42: ...Samsung Electronics 8 13 Electrical Parts List Location No Code No Description Specification Remarks ...

Страница 43: ...FEP MIC1 MIC2 MCO1 FIC3 DIC1 JIC1 DLPF3L 3R LL3 FIC6 FIC3 SIC2 FIC5 AIC1 HIC1 UIC4 UIC1 UIC2 UIC3 9 Block Diagrams 9 1 Main Samsung Electronics 9 1 ...

Страница 44: ...NVR1703 FE GAIN NVR1701 FE BIAS NVR1702 EF BAL MOTOR CONTROL S W SENSOR FOK MAIN PCB MAIN PCB MICOM CTRL LINE POWER AUDIO LINE 10 1 11 2 19 19 R G L 21 20 36 37 38 68 25 26 30 29 10 70 72 73 75 76 27 MCK MDATA MLT ISTAT SQDT LKFS SOS1 SQCK A GND R CH L CH GND B LD ON RESET LOCK SMEF WDCH SMON SMSD SL IN SP IN TE IN EF IN VREF SL SL MOTOR ACTUATOR DRIVER KA9258 6 NIC 9258 ASSP KA9220 NIC 9220 SCW1 ...

Страница 45: ...ternal Diagrams 9 3 1 Main NJU3711 UIC3 NJU3718 UIC2 FIC3 DATA CLK STB CLK P1 P2 P3 P4 P5 Controller Circuit Shift Register Latch Circuit P6 P7 P8 DATA CLK STB CLK P1 P2 P3 P4 P5 P19 P20 SO Controller Circuit Shift Register Latch Circuit ...

Страница 46: ...IAS Ucc REC L REC R BR BL AR AL REF GND N C BPF L NF NFL2 NFL1 REC L NF REC L IN BPF R NF MFR2 MFR1 REC R NF REC R IN ALC T ALC L OUT ALC R OUT DET ALCRIN ALCLIN N C PBR OUT PBL OUT EOR NFR PREGND EQL NFL AR BR AL BL 1 3Ucc 70 120 NS HS TYPE I II IV HS NS 3 5 6 8 9 101314 4 15 16 1 2 TR4 TR5 TR6 C1 R2 TR1 TR2 TR3 D1 R1 7 R9 R8 TR12 TR13 R10 TR16 R12 17 18 TR14 TR15 R11 C2 TR19 TR18 TR17 TR21 R14 T...

Страница 47: ...3 14 5K Vcc 5K 3K 10K 20K 3K 100K 20K 20K 30K 30K 30K 30K 30K 30K 30K 100K 10K 5K 10K 10K 10K 10K 10K 10K 5K 10K 2 16K 10K 10K Switch Control 100K 2 16K S CE CL DI L V M VDD Vcc Vss VEE L 5dB OUT L 1dB IN L 1dB OUT R 1dB IN R 5dB OUT R 1dB OUT L 5dB IN L CT1 L CT2 R V M R 5dB IN R CT1 R CT2 CONTROL LEVEL SHIFT LATCH SHIFT REGISTER D D ...

Страница 48: ...VEL DET FM IF FM DET REG GND TUNING DRIVE S CURVE AM FM IF BUFF COMP VCC AM FM SW VCC PHASE DET PILOT DET FF FF FF STEREO DRIVE TRIG MUTE STERO SW DECODER PM AM 32 1 31 2 30 3 29 4 28 5 27 6 26 7 25 8 24 9 23 10 22 11 21 12 20 13 19 14 18 15 17 16 C L K L P F A D L O G I C SFB SW MODE SEL SU EC SU EC MODE SEL PHASE SEL V O L 16kSRAM L P F D A 6 1 2Vcc MICMIX SW DMIX SW ON OFF 1 2 Vcc VOL SEL PHASE...

Страница 49: ...UTE 25 23 28 27 26 24 22 21 20 5 VOL BASS TREBLE SPKR ATT MUTE SPKR ATT MUTE INPUT SELECTOR GAIN R8 R8 B OUT R B IN R TREBLE R OUT LEFT REAR RIGHT REAR OUT RIGHT FRONT OUT SCL SDA DIGGND LEFT FRONT OUT BUS BUFFER BUFFER VCA HPF RMS DETECTOR GND 7 R P SW 4 NR SW 13 R R 12 Vcc 10 CONTROL SWITCH VOLTAGE REGULATOR 8 REC IN1 PB 1N1 6 PB OUT1 3 GAIN FACTOR RMS DETECTOR VCA HPF 1 16 15 5 2 9 11 REC IN2 P...

Страница 50: ...7 8 9 10 12 11 13 14 15 16 17 18 19 2 0 LPF OUTPUT2 LPF28 V REF RIPPLE DE EMPHA CTL DE EMPHA OUT2 DE EMPHA IN2 BUFFER OUT2 INPUT2 LPF2 LPF1 GND LPF OUTPUT1 LPF1B MUTE CONTROL INPUT DE EMPHA CONTROL INPUT DE EMPHA CTL DE EMPHA OUT1 DE EMPHA IN1 BUFFER OUT1 INPUT1 1 2Vcc AMP Vcc DE AMP2 DE AMP1 BUFFER2 BUFFER1 MUTE SW DE EM SW 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 1...

Страница 51: ... TE2 TE1 N C FSCH FDFCT FCE FSEO TEST2 SLEN SLEO SLEI SLSTP N C CPH CBH PFSET ISTAT N C AVEE S TRCNT DIRC RESET MDAT MLT MCK DVEE S AASC EFMO BPF APDI ISET LFR FSW HF GO FE2 FE1 FBIAS AVEE RF DCC1 DCC2 RV EI EO F E N C CV PD2 PD1 PD LD P N RF RFO RFI LOQP FILTER EFM COMPARATOR VREO VIC VCO 1 TIME VCO 2 TIMES TTL TO COMS COMS TO TTL CLV LPF MICOM TO SERVO CONTROL AUTO SEQUENCER FS1 TG4 TG1 TG2 FM1 ...

Страница 52: ...KS9282 DSP NIC9282 Block Diagrams 9 10 Samsung Electronics ...

Страница 53: ... 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 VDVP V S 16 17 POWER CE 22 AMPSIN E DI TUNED DO1 CLK1 DI 1 CE 11 KEY1 KEY2 KEY3 KEY4 EQ IN P SENS T SENS SCOR REMO O O I I I O O I O I I I I I I I I I POWER ON H OFF L M65846 DSP ECHO CE AMPS SIGNAL IN TC9173 DATA IN SD CHECK TUNED LED LC72321 TDA7318 LC7235 LC72321 TDA7318 LC7235 LC72321 DATA INPUT LC72321 PLL CE A D KEY INPUT1 A D KEY INPUT2 A D KEY INPUT3 ...

Страница 54: ... DO 3 CLK 3 CE 31 CE 23 SOL 1 SOL 2 MICSNS CE 21 I I I I O O O O O I O I O O O O O I I I I O I O O O O O O I I O TUNER CD VIDEO CD V10 UP UP DOWN S W FOCUS OK GFS DSP SSP CONTROL LATCH ROULETTE MOTOR ROULETTE MOTOR SRS LED STOP LED SUB Q DATA INPUT SUBQ DATA INPUT CLOCK VDATA VIDEO CD MAIN CD OPEN MOTOR CD CLOSE MOTOR DSP SSP CONTROL CLOCK DSP SSP CONTROL DATA LD ON XRST SENSE JOG VOLUME 1 JOG VOL...

Страница 55: ...rrent for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe etc and all exposed metal parts Examples Handle brackets metal cabinets screwheads and control shafts ...

Страница 56: ...nplug the unit s AC power cord from the AC power source before attempting to a Remove or reinstall any component or assembly b Disconnect an electrical plug or connector c Connect a test component in parallel with an electrolytic capacitor 3 Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used The internal wiring may be clamped to preve...

Страница 57: ...ou are ready to install it Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam aluminum foil or other conductive materials 8 Immediately before removing the protective material from the leads of a replacement ESD touch the protective material to the chassis or circuit assembly into which the device will be installed 9 Minimize body motions when h...

Страница 58: ...tical Pickup Follow this procedure 2 Place a conductive sheet on the work bench i e the black sheet used for wrapping repair parts Note The surface of the work bench should be covered by a copper ground plane which is grounded 3 The repair technician must wear a wrist strap which is grounded to the copper sheet 4 To remove the Optical Pickup block Place the set on the conductive sheet and momentar...

Страница 59: ...nal to noise ratio IF rejection ratio Total harmonic distortion Frequency range Usable sensitivity IF rejection ratio Frequency range WOW FLUTTER Erasing effect Signal to noise ratio Total harmonic distortion Frequency response Signal to noise ratio Channel separation Total harmonic distortion 125Hz 12 5KHz 0 15 60 dB 40 dB 2 5 20Hz 20KHz 1dB 90 dB 1kHz 0dB 80 dB 1kHz 0dB 0 05 1kHz 0dB 87 5 108MHz...

Страница 60: ...3 Disassembly and Reassembly 3 1 Cabinet Top 1 Remove 11 screws holding the Cabinet Top 2 Lift the back of the Cabinet Top and slide it to the rear to remove Figure 3 1 Samsung Electronics 3 1 ...

Страница 61: ... 1 After power is connected Turn power on and open the tray using the open close key 2 After disconnecting power Turn the Gear clockwise using the hand as shown in figure 3 2 1 Pull the Tray in the direction of arrow 3 Remove 4 screws and lift the CD Mecha 4 4 2 Tray 1 5 Figure 3 2 1 ...

Страница 62: ...et Rear and slide it to rear to remove see arrow 2 Remove the Main PCB 1 Remove 5 screws 2 Remove the Cabinet Bottom by pushing the A and B as shown 7 6 5 A B 8 8 8 Figure 3 3 Figure 3 4 3 4 Cabinet Front and Cabinet Bottom Samsung Electronics 3 3 Disassembly and Reassembly ...

Страница 63: ...msung Electronics Disassembly and Reassembly 3 5 CD Mecha 13 8 2 7 6 5 4 9 3 1 10 17 16 12 11 20 15 21 14 19 CD SUB PCB TRAY DISC ASS Y TRAY STOPPER CD MAIN PCB HOOK BASE MAIN 18 Refer to the next page for timming point ...

Страница 64: ... Main by turning it 2 Push the Slider Cam towards right then lift it up to remove 3 Remove the Gear Tray from the Base Main by releasing the fixed hook 4 Remove the Gear Converter from the Base Main by releasing the fixed hook 5 Remove the Gear Cam from the Base Main by releasing the fixed hook 6 Remove the Belt from the Pulley Motor Ass y 7 the Gear Pulley 7 Remove the Gear Pulley from the Base M...

Страница 65: ...nstall in reverse order Align the Gear Cam with the Gear Tray as shown ing Figure 3 6 then mount the Tray Disc When assembling the Tray Disc take extreme care not to engage the Gear Synchro Gear Cam Gear Cam Gear Cam Gear Cam Timming Point Gear Cam Gear Synchro Gear Disc Insert ...

Страница 66: ...ing T Table 5 Remove the Turn Table M 6 Remove 2 screws and then remove the Spindle Motor 7 Remove the Cover Gear by pushing the hook 8 Remove the Gear c by pushing the hook 9 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 Disassembly and Reassembly 3 4 5 6 12 2 1 8 9 10 11 13 14 7 ...

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