Samsung MM-G25 Service Manual
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Samsung MM-G25 Service Manual

Micro component audio system
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SERVICE
Micro Component Audio System
MM-G25
Refer to the service manual in the GSPN (see the rear cover) for the more information.
All manuals and user guides at all-guides.com
Micro Component
Audio System
Model Name : MM-G25
Model Code : MM-G25T/XAP
Manual
CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. PCB Diagram
7. Schematic Diagram

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Summary of Contents for Samsung MM-G25

  • Page 1 All manuals and user guides at all-guides.com Micro Component Audio System Model Name : MM-G25 Model Code : MM-G25T/XAP SERVICE Manual CONTENTS Micro Component Audio System 1. Precaution 2. Product Specification 3. Disassembly & Reassembly 4. Troubleshooting 5. Exploded View & Part List 6.
  • Page 2 Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com © Samsung Electronics Co.,Ltd. Apr. 2009 This Service Manual is a property of Samsung Electronics Printed in Korea Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com Contents 1. Precaution 1-1 Safety Precautions ................... 1-1 1-2 Servicing Precautions ..................1-3 1-3 Precautions for Electrostatically Sensitive Devices (ESDs) ......1-4 2. Product Specification 2-1 Product Feature ....................2-1 2-2 Specifications ....................2-2 2-3 Specifications Analysis ..................2-4 2-4 Accessories ......................2-5 3.
  • Page 4 All manuals and user guides at all-guides.com Contents 7. Schematic Diagram 7-1 Overall Block Diagram ..................7-2 7-2 FRONT ......................7-3 7-3 TAPE ........................7-4 7-4 MAIN ........................7-5 7-5 MPEG.......................7-6 7-6 SMPS .......................7-7...
  • Page 5  120W Power  2 CH - Powerful Sound Experience  DVD  USB Host w/ video playback  Tuner  Various Multimedia Playback - DIVX, MP3, WMA, Photo Files 2-1-2 MM-G25 Product Feature  120W Power  2 CH - Powerful Sound Experience  CD RIPPING  USB Host w/ video playback  Tuner  Various Multimedia Playback...
  • Page 6 Diameter: 120 or 80 mm. Thickness: 1.2 mm Output power 60 Watts/CH RMS, IEC (total harmonic distortion: 10 %) Front Speaker (4Ω) AMPLIFIER Channel separation 60 dB Signal/noise ratio 70 dB Power Consumption GENERAL Dimensions 230 (D) x 154 (H) x 251 (W) mm Weight 2.2 Kg Samsung Electronics...
  • Page 7 All manuals and user guides at all-guides.com Product Specification 2-2-2 MM-G25 Specifications  Basic Specification Signal/noise ratio 62 dB Usable sensitivity 10 dB RADIO FM Total harmonic 0.4 % distortion Capacity 1 disc Frequency range 20 Hz - 20 KHz (± 1 dB) COMPACT Signal/noise ratio 90 dB (at 1 KHz) with filter...
  • Page 8 All manuals and user guides at all-guides.com Product Specification 2-3 Specifications Analysis Model Name MM-DG25 MM-G25 MM-DA25 Photo OUTPUT POWER 120W 120W 50 x 2 FRONT DISPLAY SLEEP    DIMMER    CD/DVD CD/DVD CD/DVD    USB HOST VIDEO VIDEO ...
  • Page 9 All manuals and user guides at all-guides.com Product Specification 2-4 Accessories 2-4-1 Supplied Accessories Accessories Item Item code Remark AH59-02147C Remote Control Samsung Service FM Antenna AH39-00320C Center AH68-02157L User's Manual AH68-02157Z Samsung Electronics...
  • Page 10 All manuals and user guides at all-guides.com MEMO Samsung Electronics...

  • Page 11: Precaution

    1 and 5.2 megohms. If there is no return path, the measured resistance should be “infinite.” If the resistance is outside these limits, a shock hazard might exist. See Fig. 1-2. Samsung Electronics...
  • Page 12 . Use replacement components that have the same ratings, especially for flame resistance and dielectric strength specifications. A replacement part that does not have the same safety characteristics as the original might create shock, fire or other hazards. Samsung Electronics...

  • Page 13: Servicing Precautions

    8. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last. First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precautions. Samsung Electronics...

  • Page 14: Precautions For Electrostatically Sensitive Devices (Esds)

    9. Minimize body motions when handing unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting a foot from a carpeted floor can generate enough static electricity to damage an ESD. Samsung Electronics...
  • Page 15 All manuals and user guides at all-guides.com Exploded View & Part List 5. Exploded View & Part List 5-1 Exploded View ..................5-2 5-2 Speaker System..................5-4 5-3 Electrical Part List ................5-5 Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 16 All manuals and user guides at all-guides.com Exploded View & Part List 5-1 Exploded View AC080 AK170 BCW2 AC020 AC501 AL210 AK420 AC501 AS503 JCW2 AC010 AD480 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 17 ASSY DECK;MAX-DG89,WITH DOOR,CABLE R BEN PCB-FRONT AH92-03027A ASSY PCB FRONT;MINI-DVD/CD,MM-DG25,ASSY PCB-MAIN AH92-03026C ASSY PCB MAIN;MINI-DVD,MM-DG25,South Ame PCB-MPEG AH92-03015A ASSY PCB DECK;MPEG,MAX-G25,DVD,- POWER CORD AC39-10200N CBF-POWER CORD;AT,US,EP2/Y,HOUSING(2P),1 6003-000275 SCREW-TAPTYPE;BH,+,-,B,M3,L10,ZPC(BLK),S 6003-001375 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(WHT),SW 6003-001464 SCREW-TAPTYPE;BH,+,B,M3,L10,ZPC(WHT) Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 18 All manuals and user guides at all-guides.com Exploded View & Part List 5-2 Speaker System Front Front Speaker (L) Speaker (R)  Part List Loc. No. Code No. Description;Specification Q’ty Remark Front Speaker AH59-02136E SPEAKER SYSTEM-RCL;PS-G25,RCL,2.0CH (L/R) This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 19 2401-002042 C-AL;220uF,20%,10V,GP,TP,6.3x11,5 C28 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 DC7 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 DD2 0407-000123 DIODE-ARRAY;DAN202K,80V,100mA,CA2-3 DIC1 1003-001978 IC-MOTOR DRIVER;AM5766,HSOP28H,28P, 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 DR1 2007-000029 R-CHIP;0ohm,5%,1/8W,TP,2012 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 DR15 2007-000070 R-CHIP;0ohm,5%,1/10W,TP,1608 2401-002042 C-AL;220uF,20%,10V,GP,TP,6.3x11,5 Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 20 2401-001952 C-AL;4.7uF,20%,50V,GP,TP,5x7mm,5mm MC51 2203-006361 C-CER,CHIP;10000nF,10%,10V,X5R,TP,2 KC12 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,16 MC52 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 KC13 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1 MC53 2203-000681 C-CER,CHIP;0.027nF,5%,50V,C0G,1608 MC54 2203-000681 C-CER,CHIP;0.027nF,5%,50V,C0G,1608 KC14 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,16 MC55 2203-005148 C-CER,CHIP;100nF,10%,16V,X7R,TP,160 KC15 2203-001126 C-CER,CHIP;0.68nF,10%,50V,X7R,1608 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 21 2203-000280 C-CER,CHIP;0.01nF,0.5pF,50V,C0G,160 R13 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 VC9 2203-000280 C-CER,CHIP;0.01nF,0.5pF,50V,C0G,160 VD1 0403-000314 DIODE-ZENER;RLZJ9.1B,8.8-9.3V,500MW R14 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 VD2 0403-000314 DIODE-ZENER;RLZJ9.1B,8.8-9.3V,500MW R15 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 VD3 0403-000314 DIODE-ZENER;RLZJ9.1B,8.8-9.3V,500MW 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 VD4 0403-000314 DIODE-ZENER;RLZJ9.1B,8.8-9.3V,500MW Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 22 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,160 1SQ02 0501-002409 TR-SMALL SIGNAL;KTC945B,NPN,625mW,T AC4 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 1SR02 2003-000994 R-METAL OXIDE(S);33Kohm,5%,2W,AF,TP 1SR03 2003-000994 R-METAL OXIDE(S);33Kohm,5%,2W,AF,TP AC40 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,160 1SR04 1404-001195 THERMISTOR-NTC;5.1ohm,3.84A,3000K,2 AC41 2203-005221 C-CER,CHIP;15nF,10%,50V,X7R,1608 1SR05 2001-001088 R-CARBON(S);1Kohm,5%,1/2W,AA,TP,2.4 AC42 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,160 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 23 2203-000206 C-CER,CHIP;100nF,10%,50V,X7R,TP,201 C1P120 2203-005171 C-CER,CHIP;1000nF,10%,16V,X7R,2012 FC9 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,160 C1P121 2203-000206 C-CER,CHIP;100nF,10%,50V,X7R,TP,201 FCW1 3708-000411 CONNECTOR-FPC/FFC/PIC;12P,1.25mm,ST C1P93 2202-000173 C-CERAMIC,MLC-AXIAL;1nF,10%,50V,Y5P FCW3 3708-000303 CONNECTOR-FPC/FFC/PIC;6P,1.25mm,STR FD1 0401-001099 DIODE-SWITCHING;1N4148WS,75V,150mA, C1P94 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 FD2 0401-001099 DIODE-SWITCHING;1N4148WS,75V,150mA, Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 24 2007-000134 R-CHIP;33Kohm,5%,1/10W,TP,1608 Q1S02 H/S AH62-30122A HEAT SINK-POWER;1,AL,VO,T1.3,ANODIZ HR13 2001-000802 R-CARBON;5.6Kohm,5%,1/8W,AA,TP,1.8x Q1S90 0501-000341 TR-SMALL SIGNAL;KSC1623-L,NPN,200mW 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 HR14 2001-000802 R-CARBON;5.6Kohm,5%,1/8W,AA,TP,1.8x R1P100 2001-000429 R-CARBON;1Kohm,5%,1/8W,AA,TP,1.8x3. HR15 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 HR16 2007-000124 R-CHIP;2.2Kohm,5%,1/10W,TP,1608 R1P101 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 5-10 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 25 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 UB1 3301-001495 BEAD-SMD;120ohm,2012,2500mA,TP,115o UR38 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 UB3 3301-001495 BEAD-SMD;120ohm,2012,2500mA,TP,115o UB4 2007-000029 R-CHIP;0ohm,5%,1/8W,TP,2012 UR39 2007-000094 R-CHIP;22Kohm,5%,1/10W,TP,1608 UB5 3301-001495 BEAD-SMD;120ohm,2012,2500mA,TP,115o UR4 2001-000281 R-CARBON;100ohm,5%,1/8W,AA,TP,1.8x3 UB8 3301-001495 BEAD-SMD;120ohm,2012,2500mA,TP,115o UR40 2001-000290 R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3 Samsung Electronics This Document can not be used without Samsung’s authorization. 5-11...
  • Page 26 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W143 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W201 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W144 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W203 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W145 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W204 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W205 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W146 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY W206 3811-001868 WIRE-NO SHEATH CU;SnCuFe,52mm,GRY 5-12 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 27 0203-000007 TAPE-FILAMENT;T0.15,L55M,TRP 0.1 SNA BD1 0401-000005 DIODE-SWITCHING;1N4148,75V,150mA,DO 0203-001100 TAPE-OPP MASKING;OPP/W75/CLR,T0.05, 1.5 SNA BD3 0401-000005 DIODE-SWITCHING;1N4148,75V,150mA,DO 0203-001362 TAPE-DOUBLE FACE;#570 W10X50M CLR 0.1 SNA BD5 0401-000005 DIODE-SWITCHING;1N4148,75V,150mA,DO 0205-001366 GREASE-SILICON;T4110 1.4 SNA BR1 2001-000290 R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3 Samsung Electronics This Document can not be used without Samsung’s authorization. 5-13...
  • Page 28 1.05 SNA AH98-00219P ASSY LABEL;-,MM-G25T/XAP,-,- 3809-001434 CABLE-FLAT;30V,80C,100MM,12P,1.25MM 3809-002301 CABLE-FLAT;30V,80C,100mm,27P,1.25mm AH63-01301A SHEET-SET;HT-Q40 AH68-00371A LABEL-BAR CODE;DVD-611/XAA,MOJO2000 1.05 SNA AH68-01929G LABEL RATING;HT-A100,XTL,SLIVER PET 1.05 SNA AH68-02189E LABEL-POP;MM-G25,NOEUR,RAINBOW,0.18 AH69-02459A CUSHION-R;MM-DG25,EPS,98,191.7,385, AH69-02460A CUSHION-L;MM-DG25,EPS,46,191.7,385, AC39-10200N CBF-POWER CORD;AT,US,EP2/Y,HOUSING( AH69-02602C CARTON-MARSTER;MM-DG25,PAPER,7,332, 1.02 SA AH96-00010A ASSY DECK;MAX-DG89,WITH DOOR,CABLE 5-14 This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 29: Disassembly & Reassembly

    - Assemble in the reverse order of disassembly. Part Name Description Description Photo CABINET- 1) Unfasten 6 screws on the CABINET- TOP side and the one in the middle. : BH,3*10,BLACK Be careful not to make any scratches as you remove it. Samsung Electronics...
  • Page 30 All manuals and user guides at all-guides.com Disassembly & Reassembly Part Name Description Description Photo CABINET- Turn over the hook of CABINET- FRONT BOTTOM and separate ASSY- FRONT. FRONT-PCB Unfasten 5 screws. : BH,3*8,WHITE Samsung Electronics...
  • Page 31 All manuals and user guides at all-guides.com Disassembly & Reassembly Part Name Description Description Photo MAIN-PCB Unfasten 2 screws on the the CABINET-BOTTOM and 4 screws on the MAIN-PCB. : BH,3*10,BLACK - 2EA ( : BH,3*8,WHITE - 4EA ( <MM-DG25 CABINET-BOTTOM> <MM-G25 CABINET-BOTTOM> Samsung Electronics...
  • Page 32 Disassembly & Reassembly Part Name Description Description Photo MPEG-PCB Unfasten the MM-DG25 - 2 screws or MM-G25 - 1 screw on the CABINET- BOTTOM and 2 screws on the MPEG-PCB. : BH,3*10,BLACK - 2EA ( : BH,3*8,WHITE - 2EA ( <MM-DG25 CABINET-BOTTOM>...
  • Page 33 All manuals and user guides at all-guides.com Disassembly & Reassembly Part Name Description Description Photo CD-DECK Unfasten 3 screws on the CD-DECK. : BH,3*10,BLACK Samsung Electronics...
  • Page 34 All manuals and user guides at all-guides.com MEMO Samsung Electronics...
  • Page 35 7. Schematic Diagram 7-1 Overall Block Diagram ..................7-2 7-2 FRONT ....................... 7-3 7-3 TAPE ........................7-4 7-4 MAIN ........................7-5 7-5 MPEG ........................ 7-6 7-6 SMPS ......................... 7-7 Samsung Electronics This Document can not be used without Samsung’s authorization.

  • Page 36: Schematic Diagram

    CD SIGNAL BUFFER TUNER TUNER SINGNAL DAIC2 PACK 4560 TAPE SINGNAL TAPE HA12237F DECK TAPE EQ PWM POWER REC-IN STAGE MIC_MIX FUNCTION FIC2 AIC1 FIC1 OPTION TDA8920 4560 R2S15904 This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 37: Front

    All manuals and user guides at all-guides.com Schematic Diagram 7-2 FRONT POWER Samsung Electronics This Document can not be used without Samsung’s authorization.

  • Page 38: Tape

    All manuals and user guides at all-guides.com Schematic Diagram 7-3 TAPE POWER AUDIO This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 39: Main

    All manuals and user guides at all-guides.com Schematic Diagram 7-4 MAIN POWER AUDIO VIDEO Samsung Electronics This Document can not be used without Samsung’s authorization.

  • Page 40: Mpeg

    All manuals and user guides at all-guides.com Schematic Diagram 7-5 MPEG POWER AUDIO VIDEO This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 41: Smps

    All manuals and user guides at all-guides.com Schematic Diagram 7-6 SMPS POWER Samsung Electronics This Document can not be used without Samsung’s authorization.
  • Page 42 All manuals and user guides at all-guides.com MEMO Samsung Electronics...
  • Page 43 6. PCB Diagram 6-1 Wiring Diagram....................6-2 6-2 FRONT PCB Top ....................6-3 6-3 FRONT PCB Bottom ..................6-5 6-4 TAPE PCB Top ....................6-6 6-5 TAPE PCB Bottom .................... 6-8 6-6 MAIN PCB Top ....................6-9 6-7 MAIN PCB Bottom .................... 6-12 6-8 MPEG PCB Top ....................6-14 6-9 MPEG PCB Bottom ..................6-17 Samsung Electronics...

  • Page 44: Pcb Diagram

    9P (power_supply) 27P (AUDIO SIGNAL, MPEG CTRL) (SCART) SCART PCB MAIN PCB SCART JACK SMPS BLOCK AMPLIFIER FUNCTION/EQ SPK JACK TUNER PACK MICOM 16P (CTRL+EQ) 2P (AMP TO FAN) FRONT PCB VFD DISPLAY MOTOR REMOTE EYE VFD DRIVER Samsung Electronics...

  • Page 45: Front Pcb Top

    All manuals and user guides at all-guides.com PCB Diagram 6-2 FRONT PCB Top BCW3 BCW2 BCW1 Samsung Electronics...
  • Page 46 All manuals and user guides at all-guides.com PCB Diagram 6-2-1 Pin Connection 1 BCW2 3 BCW1 KEY PCB Control Connector FRONT PCB Control Connector Pin No. Signal Pin No. Signal VFD_CE VFD_CLK 2 BCW3 VFD_DT KEY PCB Control Connector REMOCON Pin No. Signal 5.6V VFD- VFD+ Samsung Electronics...

  • Page 47: Front Pcb Bottom

    All manuals and user guides at all-guides.com PCB Diagram 6-3 FRONT PCB Bottom BCW3 FVFD1 BCW2 BCW1 Samsung Electronics...

  • Page 48: Tape Pcb Top

    All manuals and user guides at all-guides.com PCB Diagram 6-4 TAPE PCB Top JCON11 CON1 Samsung Electronics...
  • Page 49 TAPE DECK Status TAPE DECK Control/Signal Connector TAPE DECK Motor Control Pin No. Signal Pin No. Signal Pin No. Signal P/B-L REC SW(FWD) TAPE_MUTE R/P-L P/B-R PHOTO OUT REC/M R/P-R MOTOR HALF SW HALL REC SW(RVS) A/D3 A/D4 +12V REC-R REC-L OUT-R OUT-L Samsung Electronics...

  • Page 50: Tape Pcb Bottom

    All manuals and user guides at all-guides.com PCB Diagram 6-5 TAPE PCB Bottom JCON11 CON1 Samsung Electronics...

  • Page 51: Main Pcb Top

    All manuals and user guides at all-guides.com PCB Diagram 6-6 MAIN PCB Top 1SIC02 1SIC01 1SCN1 FCW2 JCW4 JCW3 Samsung Electronics...
  • Page 52 AC_IN VFD- U_RXD VFD+ MRST +12V DACCLK DACDT REC-R DACCE REC-L MIC_CLK 3 JCW4 OUT-R MIC_DATA MPEG Power MIC_SENS Pin No. Signal OUT-L HP_SENS S12V P_CHK AGND AGND -12V MIC_SIGN HP_L HP_R +3.3V AUX-R AUX-L CD_L CD_R AGND 6-10 Samsung Electronics...
  • Page 53 All manuals and user guides at all-guides.com PCB Diagram 6-6-2 Test Point Wave Form Samsung Electronics 6-11...

  • Page 54: Main Pcb Bottom

    All manuals and user guides at all-guides.com PCB Diagram 6-7 MAIN PCB Bottom 1SIC01 1SCN1 FIC2 FIC1 FCW2 UIC1 JCW4 HIC2 JCW3 6-12 Samsung Electronics...
  • Page 55 All manuals and user guides at all-guides.com PCB Diagram 6-7-1 Test Point Wave Form Samsung Electronics 6-13...

  • Page 56: Mpeg Pcb Top

    All manuals and user guides at all-guides.com PCB Diagram 6-8 MPEG PCB Top DEBUG RFCON1 DAIC1 MIC1 JCW1 JCW2 6-14 Samsung Electronics...
  • Page 57 CVBS CD-LD -12V VGND OPSW LD-GND VGND CLSW VGND +3.3V U_TXD U-ACK U_STB U_RXD MRST DACCLK DACDT DACCE MIC_CLK MIC_DATA MIC_SENS Vref HP_SENS P_CHK DVD-VR AGND MIC_SIGN DVD-LD HP_L RFCON1 HP_R H-Vcc AUX-R AUX-L CD_L CD_R AGND Samsung Electronics 6-15...
  • Page 58 All manuals and user guides at all-guides.com PCB Diagram 6-8-2 Test Point Wave Form 6-16 Samsung Electronics...

  • Page 59: Mpeg Pcb Bottom

    All manuals and user guides at all-guides.com PCB Diagram 6-9 MPEG PCB Bottom RFCON1 JCW1 Samsung Electronics 6-17...
  • Page 60 All manuals and user guides at all-guides.com MEMO 6-18 Samsung Electronics...

  • Page 61: Troubleshooting

    All manuals and user guides at all-guides.com Troubleshooting 4. Troubleshooting 4-1 Checkpoints by Error Mode ..............4-2 4-2 MICOM, MPEG Initialization & Update ..........4-11 4-3 Buyer-Region Code Setting Method ...........4-12 Samsung Electronics...

  • Page 62: Checkpoints By Error Mode

    MAIN PCB FCW1 +VP: Pin 14) Pin 7, 9, 10 and 11 Check reset circuit in Replace X-TAL1, UQ1 parts MAIN PCB X-TAL1, UQ1 part ok?  Refer to wave pattern image of Fig. 4-2. Replace MICOM IC Samsung Electronics...
  • Page 63 All manuals and user guides at all-guides.com Troubleshooting FIC1  MAIN, page 7-5 UIC1  MAIN PCB Bottom, page 6-12 <Fig. 4-1> Samsung Electronics...
  • Page 64 All manuals and user guides at all-guides.com Troubleshooting FIC2 FIC1 FCW2  MAIN, page 7-5 UIC1 HIC2  MAIN PCB Bottom, page 6-12 JCW3 <Fig. 4-2> Samsung Electronics...
  • Page 65 Pin 44: Low Normal, High Mute FIC1 Pin 24: 9V  Refer to wave pattern image of Fig. 4-3-1 and Fig. 4-3-2. Check MAIN PCB Check SMPS stage PT01 Pin 9: -24V and (All power source check) Pin 10: +24V Replace AAIC1 Samsung Electronics...
  • Page 66 All manuals and user guides at all-guides.com Troubleshooting  MAIN, page 7-5  MAIN PCB Top, page 6-9 <Fig. 4-3-1> Samsung Electronics...
  • Page 67 All manuals and user guides at all-guides.com Troubleshooting  MAIN, page 7-5 FIC2 FIC1  MAIN PCB Top, page 6-9 <Fig. 4-3-2> Samsung Electronics...
  • Page 68 Check Pick up Lens Loading a long time? and Pick up Flat Cable Check MIC1 ZR36966 Check Servo Parts Check Micom communication line JCW1 Pin 6, 7, 8, 9  Refer to wave pattern image of Fig. 4-5. Samsung Electronics...
  • Page 69 All manuals and user guides at all-guides.com Troubleshooting  MPEG, page 7-6 DEBUG RFCON1 DAIC1 MIC1  MPEG PCB Top, page 6-14 <Fig. 4-4> JCW1 Samsung Electronics...
  • Page 70 All manuals and user guides at all-guides.com Troubleshooting DEBUG RFCON1 DAIC1  MPEG, page 7-6 MIC1 JCW1  MPEG PCB Top, page 6-14 <Fig. 4-5> 4-10 Samsung Electronics...

  • Page 71: Micom, Mpeg Initialization & Update

    3. DVD Model: Osd shows update screen. You have to make sure your update file is most recently version. Then press “ENTER” to proceed. CD Model: VFD shows “reading”. And “update” shows up and blinking. Wait until MAIN set automatically power off. Samsung Electronics 4-11...

  • Page 72: Buyer-Region Code Setting Method

    3. After step (2), you can see “TEST − −” on the VFD. Insert number “3”, “3” to select Region Code. TEST − − 4. After step (3), you can see “− −” on the VFD. Insert the Region Code corresponding model with − − “0 ~ 9” buttons on the remote control. 5. Turn the Power off. 4-12 Samsung Electronics...
  • Page 73 All manuals and user guides at all-guides.com Troubleshooting  Option Table-1 MM-G25 Area Remark Region Code Africa Brazil Middle Asia China (semi_mic) Europe Asia Britain Korea Latin American Mexico Philippines Russia (full_mic) Russia (semi_mic) Iran South Africa India Australia USA / Canada <Table 4-1>...
  • Page 74 Britain Korea Latin American Mexico Philippines Russia (full_mic) Full karaoke models which support midi file. Only models which supporting semi-karaoke not Russia (semi_mic) including midi file. Iran Malaysia South Africa India Australia USA / Canada <Table 4-2> 4-14 Samsung Electronics...

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