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Daewoo DPC-7200N Service Manual
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Daewoo DPC-7200N Service Manual

Daewoo DPC-7200N Service Manual

Lcd color monitor & dvd player
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All manuals and user guides at all-guides.com
Ser v ice M a nua l
LCD Color Monitor &
DVD Player
Model: DPC-7200N
C aution
: In this Manual, some parts can be changed for improving,
their performance without notice in the parts list.
S/ M No. : OSPC7200N1
May. 2005

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Summary of Contents for Daewoo DPC-7200N

  • Page 1 S/ M No. : OSPC7200N1 Ser v ice M a nua l LCD Color Monitor & DVD Player Model: DPC-7200N C aution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS ---------------- Specification ............…..........…………….….. Block Diagram ........…..............…………….….. General Alignment Instruction ...............……….……..… Troubleshooting ...................…...……………...….. Printed Circuit Board ..................……………...…... IC Block Diagram and Lead Identification ............…………..….. Explode View ......................…………..…. Schematic Diagram ..................……………..…..

  • Page 3: Specification

    All manuals and user guides at all-guides.com SPECIFICATION LCD MONITOR Model No.: DPC-7200N Out put: 50mW/16ohm Supply Voltage: Description Condition Unit Limit Nominal Headphone Output 1KHz 0dB 3±2 Headphone Noise No Signal <1mV <1mV 1KHz 0dB 600±100 SPK MAX Output 1KHz 0dB 600±100...
  • Page 4 All manuals and user guides at all-guides.com Model No.: DPC-7200N Out put: 50mW/16ohm Supply Voltage: Description Condition Unit Limit Nominal Video Signal Level Vp-p 0.7±0.1 75% color SYNC Level Vp-p 0.3±0.1 bar/75ohm Video out level Vp-p 1.0±0.2 Video out level(Unload)

  • Page 5: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM...
  • Page 6 All manuals and user guides at all-guides.com...

  • Page 7: General Alignment Instruction

    All manuals and user guides at all-guides.com GENERAL ALIGNMENT INSTRUCTION The Main PCB of Monitor Modification: 1. Input voltage is 6.8V-16V, input signal is test circuit BY 5418. 2. Adjust VRT5 to get test point: 15720Hz.. 3. Adjust VRT4 to get horizontal phase shift. 4.

  • Page 8: Troubleshooting

    All manuals and user guides at all-guides.com TROUBLESHOOTING SYMPTOM CAUSE REMEDY LCD MONITOR PART 1) Picture distortion & Defective capacitor (C201) & Replace capacitor C201. & Defective IC (IR3Y31). & Replace IC IR3Y31. 2) No Picture & Defective Q7, Q8. &...
  • Page 9 All manuals and user guides at all-guides.com SYMPTOM CAUSE REMEDY DVD PART & Power source is not correct. & Replace power source. 1) No Power The positive and negative does not & Change the position of match the unit. positive and negative. &...

  • Page 10: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD Monitor Main PCB Top View -10-...
  • Page 11 All manuals and user guides at all-guides.com Monitor Main PCB Bottom View -11-...
  • Page 12 All manuals and user guides at all-guides.com Battery Charger Circuit PCB Top View -12-...
  • Page 13 All manuals and user guides at all-guides.com Battery Charger Circuit PCB Bottom View -13-...
  • Page 14 All manuals and user guides at all-guides.com DVD Main PCB Top View -14-...
  • Page 15 All manuals and user guides at all-guides.com DVD Main PCB Bottom View -15-...
  • Page 16 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC IR3Y31 COMP SYNCSEP AGCDET BGP GEN AGC AMP PICTURE COMP VREF COMP CLAMP BRIGHT BRIGHT BRIGHT KILLER PHASE TINT SHIFT PAL SW IDENT FROM SYNC IN DEMOD MATRIX INT/EXT SW 41 40 39...
  • Page 17 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC 8D02C 64 PIN FUNCTION DESCRIPTION - 1 Name Description Remark Power supply Note 1 Composite sync. Input pin Resolution mode setting pin 4 Note 2 Resolution mode setting pin 3 Note 2 Resolution mode setting pin 2 Note 2...
  • Page 18 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC 8D02C Name Description Remark H-POS position adjustment output signal H-POS position adjustment input signal Phase detect A output pin Control HSY & VSY pin for select I/O direction default=1 Oscillator output pin Oscillator input pin...
  • Page 19 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC 8D02C Vertical position adjustment for display area default=1 Power ON initialize; and UOB signal input Note 3 Power ON delay; VCO adjust can connect to GND. Note 4 Note 5 NTSC/PAL detect output &...
  • Page 20 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC M5237 INPUT OUTPUT (V1) (V0) V IN Protrction CIRCUIT THERMAL PROTECTION CIRCUIT ADJUGT Voliage START Gemrator CIRCUIT CIRCUIT Oven-currfnt PROTECTION CIRCUIT GROUND PIN NAME V IN GROUND ADJUST IC RT9266 PIN NAME...
  • Page 21 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC OZ970G 1=6uA 1=3uA Soft Start Irys. CTIMR COMP ACTIVE NDR_B NDR_B "HIGH" Protectlon Irys. COMP PDR_A PDR_A POFF IBIAS & POFF HF OSC Reference 2.75V OPLAMP Phase-Shift Controller PDR_C PDR_C...
  • Page 22 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION DVD IC 4558 NAME NAME -22-...
  • Page 23 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION AT24C02 START SERIAL STOP H.V. PUMP/TIMING CONTROL LOGIC LOGIC LOAD DATA RECOVERY COMP DEVICE ADDRESS COMPARATOR LOAD DATA WORD EEPROM ADDR/COUNTER Y DEC SERIAL MUX D out/ACK LOGIC V C C S C L S D A...
  • Page 24 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION U9 MBM29F800TA LOGIC SYMBOL -24-...
  • Page 25 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION U9 MBM29F800TA Pin Name Function A-1, A18 to A0 Address Inputs DQ15 to DQ0 Data Inputs/Outputs Chip Enable Output Enable Write Enable RY/BY Ready/Busy Output RESET Hardware Reset Pin/Temporary Sector Unprotection BYTE Selects 8-bit or 16-bit mode N.C.
  • Page 26 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC K4S641632 -26-...
  • Page 27 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION IC K4S641632 -27-...
  • Page 28 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION U2 TDA2822 + Vs LREE CONTROL 5,8,12,13 INPUT INPUT IN P U T + (2) IN P U T + (1) N .C . N .C . IN P U T - (2) IN P U T - (1) G N D G N D...
  • Page 29 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION U18 BA5954 THERMAL STAND VINFC STBY SHUT DOWN OET1 BIAS CFCerr1 7.5K V TK CFCerr2 OET2 CTKerr1 7.5K CTKerr2 7.5K V LD VOSL 7.5K VNFFC Pre GND DET AMP. DET AMP.
  • Page 30 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM & DESCRIPTION U18 BA5954FM Pin No. Pin name Function VINFC Focus drive input CFC err1 For connection of capacitor for the error amp filter CFC err2 For connection of capacitor for the error amp filter VINSL + Op-amp input (+) for the sled driver VINSL -...

  • Page 31: Explode View

    All manuals and user guides at all-guides.com EXPLODED VIEW -31-...
  • Page 32 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAMS MONITOR PART MONITOR MAIN BOARD TO: HV BO ARD +5 V TO: PA GE 3 of 5 R 252 R 253 22 K +5 V +9 V ~+1 2V R 236 68 0K R 579 10 0K R 238 C 215...
  • Page 33 All manuals and user guides at all-guides.com MONITOR PART MONITOR MAIN BOARD CON? TO: PAGE 1 of 4 CON30 RT7 2K RT36 10 0 RT37 10 0 R T8 OPEN FRPT RT38 10 0 R T9 OPEN RT39 10 0 RT10 OPEN FRDV FRDV...
  • Page 34 All manuals and user guides at all-guides.com MONITOR PART MONITOR HV BOARD 10 0UH 1A 63V C N7 01 C H1 R H6 1 10 uF/16 V 5.6V 10 K FD8958A C H9 3 R H7 9 0.04 7uF C H1 C H1 08 47 uF C N7 82...
  • Page 35 All manuals and user guides at all-guides.com BATTERY CHARGER CIRCUIT C ON1 FUSE 2 .5 A SMD TR 4 10 K 1u F SI23 07 JACK9 SK34 0.1u F R 2 2K IN4 001 PIN9 C ON2 C ON3 B 118 4 R 20 B 118 4 FUSE 1 .2 5A...
  • Page 36 All manuals and user guides at all-guides.com DVD Part DVD POWER [ 2,3,4,5,6,7 ] DV33 DV33 [2,3,4 ] EJS4708BE [ 3 ] +9VIN URST URST [ 2,3 ] ON/OFF_DCIN DCIN R132 R135 ON/OFF_DCIN SS14(SMD) +9VIN OPEN OPEN FB(DIP) AO3407 SW17 AV-IN/OUT_SW AV-IN/OUT_SW [ 6,7 ] CB36...
  • Page 37 All manuals and user guides at all-guides.com DVD RF DV33 R157 DV33 JITFO C102 390pF JITFN RFV33 RFVDD3 DACVDD3 APLLVDD3 RFV33 R167 750k 2200pF C100 C101 DV33 0.1uF/N.C CB56 680k R175 ADIN 0.1uF 0.01uF 2200pF 10uF/16V 0.1uF 10uF/16V 10uH C104 C106 R158 C103...
  • Page 38 All manuals and user guides at all-guides.com DVD ROM & RAM SD33 DV33 DQ[0..15] [ 2 ] DQ[0..15] [ 2 ] MA[0..11] MA[0..11] CB27 C137 CB37 CB46 CB40 [ 2 ] BA[0..1] BA[0..1] [ 2 ] DQM[0..1] DQM[0..1] 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF...
  • Page 39 All manuals and user guides at all-guides.com DVD MUTE [ 3 ] ACLK ACLK [ 3 ] ABCK ABCK [ 3 ] ALRCK ALRCK ASDAT0 [ 3 ] ASDAT0 [1,2,3,4,6,7 ] +9VIN 1N4148 1N4148 100uF/16V 3904 3906 470/0805 MUTE_ON 10uF/16V 4.3V DAC_MR DAC_MR [ 6 ]...
  • Page 40 All manuals and user guides at all-guides.com DVD AV MONITOR_Y(VIDEO) MONITOR_Y(VIDEO) [ 7 ] 2907 ON_DCIN I/O_R AVCM I/O_L VOUT CVBS_IN/OUT ADCIN +9VIN AVCM I/O_L I/O_R VIDEO_+5V AUDIO I N /OUT AVCM SC-A 47pF ON/OFF_+9V DCIN [ 1 ] ON/OFF_+9V LCD_ON/OFF VIDEO_+5V [ 1 ]...
  • Page 41 All manuals and user guides at all-guides.com DVD AUDIO JACK VIDE O_+5V DCIN O N/OFF_+9V SC-A MO NITO R_C MO NITO R_Y (VIDEO) MO NITO R_C MO NITO R_WIDE/NOR MO NITO R_CO NTRO L TO MONITOR BOARD(1)CON1 AV-IN/OUT_SW AV-IN/OUT_SW [ 1,6 ] MONITO R _CO NTRO L AVIN/OUT_SW O N/OFF_+9V...
  • Page 42 All manuals and user guides at all-guides.com MEMO...