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Samsung MCD-M500, Руководство по обслуживанию, Страница: 6 / 41

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Samsung Electronics

Troubleshooting

8-3

8-3 Tuner Malfunction (FM/AM)

TZD2(8.2V) Voltage ok ?

Check TUNER IC(LA1836)

pin on. 10 ; 8.2V
pin on. 14 ; 7.2V

AM ; 0V ?

FM VT

LC72131 pin no.20

1.7V          7.5V

Power section defective

Check for 

µ

-com IC

Replace LC72131

Check FEP interior

pattern, and any line

disconnections.

No

No

No

No

No

No

No

Yes

No

No

Yes

No

No

Yes

Yes

Yes

Yes

Check MIC6

pin 20 ?

LPF1,2

output ok ?

Yes

AM VT

LC72131 pin 20

0.9V          7V ?

AQI(C4369) Voltage ok ?

PIN NO.8 : 12V

Check the voltage ok ?

TZD3(5.6V) Voltage ok ?

MIC7(LC72131) FM/AM BAND

Switching ok ?

1) Power impaired
    so repair defects.
2) LC72131 Oscillator
    (HX1 : 7.2MHz) ok ?
3) System line ok ?

LC72131

CONTROL ok ?

Check the LC72131

CONTROL ok ?

Check(TDA7449) function ok ?

QIC1

Содержание MCD-M500

Страница 1: ...and Adjustments 2 Exploded Views and Parts List 3 Electrical Parts List 4 Block Diagrams 5 PCB Diagrams 6 Wiring Diagram 7 Schematic Diagrams 8 TROUBLESHOOTING On Standby Auto Door Open Function Open Close CD MP3 CD MP3 Tuning Volume Power Sound Power Surround Game Sound Band Preset EQ Timer On Off Timer Clock CD Random Sleep Mute 1 All A B Mono ST PROG Set MIC Phones Tuning Mode Repeat Charge Hea...

Страница 2: ...ELECTRONICS Samsung Electronics Co Ltd SEP 2000 Printed in Korea Code no AH68 00073X ...

Страница 3: ... Adjustment point TFT1 450 kHz 522 kHz AM I F COIL FM Search Level Adjustment Adjust IVR1 so that TUNED of FLT is lighted Figure 1 2 4Gag 20dB CE standard Figure1 2 FM Auto Search Level Adjustment Figure1 3 AM I F Adjustment Figure1 1 IF CENTER and THD Adjustment SSG FREQ Adjustment point TVR1 98 MHz BEACON SENSITIVITY SEMI VR 20KΩ FM SSG GND 28 dB FM SSG Output GND Speaker Terminal FM Antenna Ter...

Страница 4: ...5V Main PCB Does UX1 6MHz oscillate Main PCB When the power is ON H displays at pin no 5 5V Replace ARIC1 Check the Power PCB ARD 1 2 3 4 IN5392 AF2 1 25A Fuse Connect Top PCB and Main PCB Check the connector Main PCB Wafer ucw3 No No Check the Main PCB ARZD1 ARR 7 ARR6 ARD5 ARC5 12 No No No No Yes Yes Yes Yes Replace µ com Check the Power PCB P T FUSE Yes Samsung Electronics 8 1 ...

Страница 5: ...no 9 4 12 8 B B circuits AQ 7 8 Base B Is Mute selected Check the B power PCB AD1 2 3 4 AF1 3 Confirm for TR short replace it Remove it with Remocon Replace Headphone jack soldering condition No No No No Check if the output line is short Yes Yes Yes Yes Headphone Jack short ...

Страница 6: ...P interior pattern and any line disconnections No No No No No No No Yes No No Yes No No Yes Yes Yes Yes Check MIC6 pin 20 LPF1 2 output ok Yes AM VT LC72131 pin 20 0 9V 7V AQI C4369 Voltage ok PIN NO 8 12V Check the voltage ok TZD3 5 6V Voltage ok MIC7 LC72131 FM AM BAND Switching ok 1 Power impaired so repair defects 2 LC72131 Oscillator HX1 7 2MHz ok 3 System line ok LC72131 CONTROL ok Check the...

Страница 7: ...5 0V at LCD PCB Check voltage at ZIC1 pin no 56 57 58 Reinsert the connector Check TOP PCB LCD PCB connection and the voltage of ZCW1 6pin Check the voltage of ARIC1 Replace ZIC1 No No No Yes Yes Yes Samsung Electronics 8 4 8 4 LCD Nalfunction Troubleshooting ...

Страница 8: ...CK PCB 9P Check Main PCB µ com Pin No 86 LOW YES Check CD B CQ1 ARQ5 Check the Top PCB CCW4 CCW1 JACK PCB MY CD No No Check the Leaf S W No Check the Top PCB ARQ1 ARZD1 No 6 Data 8 ACK 7 CLK 99 RZQ Yes Yes Yes Yes Samsung Electronics 8 5 8 5 CD Malfunction Troubleshooting ...

Страница 9: ...main PCB µ com Pin No 6 7 Check main PCB µ com Pin No 85 Low YES Check MP3 B BQ3 Check Top PCB ANIC3 Pin No 3 4 6 20 GIC2 Pin No 6 7 8 ARIC2 KA7805 Check the Leaf S W GCW2 Check Top PCB BA50 51 52 BR8 BF1 Change MP3 No No No Yes Yes Yes Troubleshooting ...

Страница 10: ...CHECK CON11 CON12 CONNECTION CHECK MICOM RESET L H PIN NO 25 KEY input When press the play Button No CHECK IC 7327 PIN NO 55 F0 CHECK IC 6509 PIN NO 40 3 5 CON101 CONNECTION No No No Yes Yes Yes Yes CHECK IC 6509 PIN NO 14 L 22 L CHECK IC 7327 IC6509 VCC CON102 CONNECTION CHECK IC 7327 PIN NO 15 16 Resonator Signal 16 93Mhz CHECK MICOM COMMAND PORT PIN NO 38 39 40 41 42 CHECK IC 7327 PIN NO 56 Ω P...

Страница 11: ...7 PIN NO 8 9 10 11 IC 1024 PIN NO 5 IC 7327 PIN NO 59 MOTO1 IC 6509 PIN NO 37 25 27 CON102 CONNECTION CHECK POINT R215 C216 R216 C218 R217 C217 C219 IC7327 PIN NO 1 2 3 No CHECK The IC7232 PIN NO 54 RA R232 R231 C229 CHECK The IC6509 PIN NO 41 7 9 No No No Yes Yes Yes Yes Yes DOES IT OUTPUT SOUND CHECK IC7327 PIN NO 62 H IC3574 PIN NO 12 H PIN NO 11 H L CHECK IC4510 IC4511 PIN NO 1 7 CHECK IC7327 ...

Страница 12: ...Samsung Electronics 2 1 2 Exploded View and Parts List 2 1 Total Exploded N C10 ...

Страница 13: ...47A KNOB FUNCTION ABS CR N C10 16 AH64 00544A WINDOW LCD PMMA CLR N C10 17 AH64 00539A DOOR BOTTOM MIPS M GRAY N C10 EXP 18 AH63 00167A SHEET LCD PE 0 1T MILKY N C10 19 AH67 00047A LENS LCD PMMA CLR NAC10 20 AH64 00538A DOOR TOP MIPS 94HB N C10 21 AH64 00536A CABINET TOP MIPS 94HB N C10 22 AH64 00545A KNOB EJECT POM N C10 23 AH61 00427A SPRING EJECT STS 304 PI1 0 N C10 24 AH61 00326A HOLDER CD POM...

Страница 14: ...Samsung Electronics 2 3 2 2 Total Exploded N CP50 70 ...

Страница 15: ... CR N C10 16 AH64 00544C WINDOW LCD PMMA CLR N CP50 17 AH64 00539A DOOR BOTTOM MIPS M GRAY N C10 18 AH63 00167A SHEET LCD PE 0 1T MILKY N C10 19 AH67 00047A LENS LCD PMMA CLR NAC10 20 AH64 00538E DOOR TOP MIPS 94HB N CP50 N CP50 AH64 00538G DOOR TOP MIPS 94HB N CP70 N CP70 21 AH64 00536A CABINET TOP MIPS 94HB N C10 22 AH64 00545A KNOB EJECT POM N C10 23 AH61 00427A SPRING EJECT STS 304 PI1 0 N C10...

Страница 16: ...D MAIN PC 94HB BLK T2 0 5 AH64 00524B DOOR CD FRONT ABS 94HB GRAY T1 5 6 AH64 00525A LID BATTERY ABS 94HB BLK T1 0 7 AH64 00527A KNOB FUNCTION ABS 94HB NTR 8 AH64 00528B KNOB OPEN A ABS 94HB GRAY 9 AH64 00529B KNOB OPEN B ABS 94HB GRAY 10 AH61 00340A SHAFT DOOR SUM 24LL NI PLATING 11 AH63 00132A COVER FPT ABS 94HB BLK T1 0 12 AH61 00315A BRACKET PCB SPTE T0 3 13 AH59 00038A CD DECK DA23 S2000 14 A...

Страница 17: ...CP50 70 2 4 1 N C10 Description AH81 00261N CAUSION It is used the bonding connet NET ASS Y to CABINET ASS Y So when the disassembly take extreme care not to demage the SPEAKER CAUSION It is used the bonding connet NET ASS Y to CABINET ASS Y So when the disassembly take extreme care not to demage the SPEAKER ...

Страница 18: ...001003 TR DIGITAL KSR2003TA 300mW 22K 22Kohm QR1 2001 000003 R CARBON 330ohm 5 1 8W AA TP 1 8x3 2mm TR20 2001 000005 R CARBON 390ohm 5 1 8W AA TP 1 8x3 2mm TR005 2001 000008 R CARBON 15Kohm 5 1 8W AA TP 1 8x3 2mm AR1 2001 000028 R CARBON S 100ohm 5 1 2W AA TP 2 4x6 4mm AR18 2001 000028 R CARBON S 100ohm 5 1 2W AA TP 2 4x6 4mm TR003 2001 000028 R CARBON S 100ohm 5 1 2W AA TP 2 4x6 4mm AR2 2001 0000...

Страница 19: ...37 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 TC39 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 TC45 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 TC63 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 TC99 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 UC1 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5 4 UC17 2201 000565 C CERAMIC DISC 47nF 80 20 50V Y5V 12 5...

Страница 20: ...C10 CY30 40 S N A XC1 2202 000781 C CERAMIC MLC AXIAL 100pF 10 50V Y5P 3 5x19mm T ARC5 2401 001954 C AL 4 7UF 20 50V GP 5 11 5MM TP TC5 2401 001968 C AL 470nF 20 50V GP 5 11 5mm TP UL1 2701 000111 INDUCTOR AXIAL 100uH 10 2 5x3 4 LAL02TB101K AH92 00480A ASSY PCB FRONT REM1 AC59 60060A MODULE REMOCON GP1U281R SHARP 38KHZ UD30 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW 4nS UD31 0401 000101 D...

Страница 21: ...AKER SYSTEM PSN30 N CP50 Parts List AH09 00006A IC MCU M66P573 ST TQFP OTP AH26 00068A TRANS POWER SHEET NAC10 166 33 155 230V AH38 10001A FM WIRE 1007 22 1500MM AH39 00178A ECP CABLE 51002S 18G2 7300P 25G2 1200MM AH39 10002L AC CORD VDE H03VVH2 F 3 0 75 2150MM AH40 10025S TUNER PACK ST F404VA 3 AH42 20001Q LOOP ANT KS980214 18 5UH CONNECTOR 2P AH46 20001V DISC OTICAL 120MM DOMESTIC AH59 00060B RE...

Страница 22: ... R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m TR40 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m TR41 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m TR42 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m TR44 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m TR63 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m UR1 2001 000449 R CARBON 2 2Kohm 5 1 8W AA TP 1 8x3 2m AR30 2001 000472 R CARBON...

Страница 23: ... AC8 2401 000303 C AL 100uF 20 25V GP 6 3 11 5MM TP AC17 2401 000325 C AL 100uF 20 35V GP 8 11 5 5MM TP AC67 2401 000325 C AL 100uF 20 35V GP 8 11 5 5MM TP QC1 2401 000419 C AL 10UF 20 16V GP 5 11 5MM TP TC18 2401 000419 C AL 10UF 20 16V GP 5 11 5MM TP TC19 2401 000419 C AL 10UF 20 16V GP 5 11 5MM TP TC20 2401 000419 C AL 10UF 20 16V GP 5 11 5MM TP AC12 2401 000438 C AL 10uF 20 25V GP 5 11 5mm TP ...

Страница 24: ...2mm STRAIGHT SN GIC1 2 3811 000389 WIRE NO SHEATH CU SPCW 300V 52 4mm 1 0 5mm BD53 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW 4nS BD54 0401 000101 DIODE SWITCHING 1N4148 100V 200mA 500mW 4nS ADR8 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 ADR9 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 ARD10 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 BD11 0402 000151 DIODE RECTIFIER 1N53...

Страница 25: ... DISC 47nF 80 20 50V Y5V 12 5 4 TC62 2202 000781 C CERAMIC MLC AXIAL 100pF 10 50V Y5P 3 5x19mm T FREE 2202 000797 C CERAMIC MLC AXIAL 10nF 30 16V Y5R 3 5x19mm TP HL1 2701 000111 INDUCTOR AXIAL 100uH 10 2 5x3 4 LAL02TB101K HL51 2701 000111 INDUCTOR AXIAL 100uH 10 2 5x3 4 LAL02TB101K JW108 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 2900G JW31 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1...

Страница 26: ...ohm 5 1 8W AA TP 1 8x3 2mm TR64 2001 000522 R CARBON 22Kohm 5 1 8W AA TP 1 8x3 2mm UR00 2001 000522 R CARBON 22Kohm 5 1 8W AA TP 1 8x3 2mm TR2 2001 000527 R CARBON 22ohm 5 1 8W AA TP 1 8x3 2mm TR27 2001 000527 R CARBON 22ohm 5 1 8W AA TP 1 8x3 2mm CR2 2001 000591 R CARBON 3 3Kohm 5 1 8W AA TP 1 8x3 2m CR52 2001 000591 R CARBON 3 3Kohm 5 1 8W AA TP 1 8x3 2m PR10 2001 000591 R CARBON 3 3Kohm 5 1 8W ...

Страница 27: ... C AL 1uF 20 50V GP 5 11 5mm TP QC3 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC4 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC5 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC52 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC53 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC54 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP QC55 2401 001912 C AL 1uF 20 50V GP 5 11 5mm TP TC3 2401 001912 C AL 1uF 20 50V GP ...

Страница 28: ...00151 DIODE RECTIFIER 1N5392 100V 1 5A DO 15 BD13 0402 000151 DIODE RECTIFIER 1N5392 100V 1 5A DO 15 BD14 0402 000151 DIODE RECTIFIER 1N5392 100V 1 5A DO 15 BR8 0403 000352 DIODE ZENER UZ4 7BM 4 7V 4 4 5 0V 500mW ARZD3 0403 000377 DIODE ZENER UZP10B 10V 9 4 10 6V 1W DO ARZD1 0403 000394 DIODE ZENER UZP5 6B 5 6V 5 2 6 0V 1W DO 41 DZD1 0403 000396 DIODE ZENER UZP6 8B 6 8V 6 4 7 2V 1W DO 41 BQ9 0501 ...

Страница 29: ...ENER RLZ3 9B 3 89 4 16 400MW PQ1 0501 000528 TR SMALL SIGNAL KSC2982B NPN 500mW SOT 89 TP 2 LIC1 1201 001579 IC OP AMP 4510 SOP 8P 173MIL DUAL 90dB P RIC1 1201 001579 IC OP AMP 4510 SOP 8P 173MIL DUAL 90dB P JP13 2007 000029 R CHIP 0ohm 5 1 10W DA TP 2012 JP14 2007 000029 R CHIP 0ohm 5 1 10W DA TP 2012 JP15 2007 000029 R CHIP 0ohm 5 1 10W DA TP 2012 JP16 2007 000029 R CHIP 0ohm 5 1 10W DA TP 2012 ...

Страница 30: ...7 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R230 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R232 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R406 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R409 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R415 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R418 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R501 2007 000355 R CHIP 12Kohm 5 1 10W DA TP 2012 R514 200...

Страница 31: ...1NF 10 50V X7R 2012 C239 2203 001537 C CERAMIC CHIP 1NF 10 50V X7R 2012 C531 2203 001537 C CERAMIC CHIP 1NF 10 50V X7R 2012 C401 2203 001551 C CERAMIC CHIP 1 5nF 10 50V X7R 2012 TP C402 2203 001551 C CERAMIC CHIP 1 5nF 10 50V X7R 2012 TP C218 2203 001611 C CERAMIC CHIP 22pF 5 50V NPO 2012 TP C240 2203 005261 C CERAMIC CHIP 1000NF 10 25V X7R 3216 C407 2203 005714 C CERAMIC CHIP 4700NF 10 10V X5R TP...

Страница 32: ...Samsung Electronics 4 1 4 Block Diagram 4 1 Main ...

Страница 33: ...4 2 Samsung Electronics 4 2 MCD Part ...

Страница 34: ...Samsung Electronics 5 1 5 Printed Circuit Board Diagram 5 1 MAIN ...

Страница 35: ...5 2 Samsung Electronics 5 2 FRONT LCD TOP MOTOR LED ...

Страница 36: ...Samsung Electronics 5 3 5 3 MCD Parts 5 3 1 MAIN TOP VIEW 5 3 2 SUB TOP VIEW BOTTOM VIEW BOTTOM VIEW ...

Страница 37: ...5 4 Samsung Electronics 5 4 POWER ...

Страница 38: ...Samsung Electronics 6 1 6 Wiring Diagram ...

Страница 39: ...Samsung Electronics 7 1 7 Schematic Diagram 7 1 MCD Part ...

Страница 40: ...7 2 Samsung Electronics 7 2 MAIN Part ...

Страница 41: ...Samsung Electronics 7 3 7 3 FRONT ...

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