MP-Man pdv-78 Service Manual Download | Manualshive

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BLOCK DIAGRAM

LCD

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Summary of Contents for pdv-78

Page 1: ...Service Manual 7 Inch LCD Color Monitor DVD Player mp man pdv 78 ...

Page 2: ... Specification 2 2 Block Diagram 4 3 General Alignment Instruction 5 4 Troubleshooting 7 5 Printed Circuit Board 12 6 Explode View 13 7 IC Block Diagram and Lead Identification 29 8 Schematic Diagram 39 ...

Page 3: ...25 1 4 20Hz dB 3 0 125Hz dB 3 0 10KHz dB 3 0 Frequency Response 20 Hz 20 kHz 20KHz dB 3 0 Signal to noise ratio add A Infinity zero dB L R dB 75 75 Audio distortion noise 1KHz 0dB L R dB 65 65 Dynamic range 1KHz 60dB dB 85 85 R L Cross sound 1KHz 0dB L R dB 45 45 1 kHz Channel Unbalance 1KHz 0dB L R dB 3 0 Standby W 0 0 Power Consumption DC 9V Rating DVD Monitor W 12 12 Eccentricity A BEX TDV 552 ...

Page 4: ...00 100 500 L 1KHz 0dB mW 500 100 500 SPK MAX Output AV IN R 1KHz 0dB mW 500 100 500 HEADPHONE S N add A Infinity zero dB L R dB 75 75 SPK S N add A Infinity zero dB L R dB 50 50 20Hz dB 3 0 125Hz dB 3 0 10KHz dB 3 0 HEADPHONE RESP 20Hz 20KHz 20KHz dB 3 0 20Hz dB 3 0 125Hz dB 3 0 10KHz dB 3 0 Amplifier Frep Resp 20Hz 20KHz 20KHz dB 3 0 ...

Page 5: ...BLOCK DIAGRAM LCD ...

Page 6: ...DVD PART ...

Page 7: ...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 VR1 to get good performance ...

Page 8: ...od Defective IC U3 Replace U3 4558 3414 4 Color is no good Defective C214 C216 C218 Replace C214 C216 C218 1UF 5 SYNC no good Defective IC U2 Replace U3 VX1827 6 TINT no good Defective IC U2 Replace U3 VX1827 7 NO Picture Defective IC U3 OR HV U1 Replace U3 VX1827 OR HV U1 MP1026 8 Picture no good Defective Y1 Replace Y1 20MHZ 9 Brightness no good Defective IC U3 Replace U3 4558 3414 ...

Page 9: ...Replace U10 64M SDRAM OR T4 FLASH 29LV800 Replace U2 MT1389E E 3 No Sound Defective IC U6 Defective IC U5 Replace U6 C4558 Replace U5 TDA2822 4 Sound no good Defective IC U6 Defective IC U5 Defective V2 Replace U6 C4558 Replace U5 TDA2822 Replace V2 10KΩ 5 Can not read DISC Defective IC U3 PICK up Laser is defective Defective IC U2 Replace U3 CD5654 Replace pick up Replace U2 MT1389E E 6 No key fu...

Page 10: ...PRINTED CIRCUIT BOARD Monitor Main PCB Top View ...

Page 11: ...Monitor Main PCB Bottom View ...

Page 12: ...Monitor HV PCB Top View Bottom View ...

Page 13: ...DVD Main PCB TOP View ...

Page 14: ...DVD Main PCB Bottom View ...

Page 15: ...EXPLODED VIEW ...

Page 16: ...IC BLOCK DIAGRAM DESCRIPTION IC VX1827 ...

Page 17: ...IC BLOCK DIAGRAM DESCRIPTION IC VX1827 ...

Page 18: ...IC BLOCK DIAGRAM DESCRIPTION IC VX1827 ...

Page 19: ...IC BLOCK DIAGRAM DESCRIPTION IC A8430K ...

Page 20: ...IC BLOCK DIAGRAM DESCRIPTION ...

Page 21: ...IC BLOCK DIAGRAM DESCRIPTION ...

Page 22: ...IC BLOCK DIAGRAM DESCRIPTION ...

Page 23: ...IC BLOCK DIAGRAM DESCRIPTION ...

Page 24: ...IC BLOCK DIAGRAM DESCRIPTION IC MBM29LV800BE ...

Page 25: ...IC BLOCK DIAGRAM DESCRIPTION IC MBM29LV800BE ...

Page 26: ...IC BLOCK DIAGRAM DESCRIPTION IC K4S641632 ...

Page 27: ...IC BLOCK DIAGRAM DESCRIPTION IC K4S641632 ...

Page 28: ...22 PIN PIN NAME TYPE DESCRIPTION 1 OSC I RC Oscillate Input 2 PD O Charge Control Output 3 Isen I Charge Current Sense Input 4 GND P Ground 5 LED O LED Status Output 6 Vsen I Charge Voltage Sense Input 7 Timer I Timer 8 VDD P 5 Volt Power ...

Page 29: ...IC BLOCK DIAGRAM DESCRIPTION IC TDA2822 BLOCK DIAGRAM SCHEMATIC DIAGRAM PIN CONFIGURATIONS ...

Page 30: ...IC BLOCK DIAGRAM DESCRIPTION IC S 8521F33 PIN PIN NAME DESCRIPTION 1 ON OFF ON OFF CONTROL PIN H NORMAL L STOP 2 VSS GND 3 VOUT OUTPUT VOLTAGE 4 EXT CONNECT EXTRA Crystal 5 VIN INPUT VOLTAGE ...

Page 31: ...IC BLOCK DIAGRAM DESCRIPTION IC MP1026 ...

Page 32: ...SCHEMATIC DIAGRAMS Monitor Part ...

Page 33: ...Monitor Part ...

Page 34: ...Monitor Part ...

Page 35: ...Monitor Part Monitor HV BOARD ...

Page 36: ...DVD Part ...

Page 37: ...DVD Part ...

Page 38: ...DVD Part ...

Page 39: ...DVD Part ...

Page 40: ...DVD Part ...

Page 41: ...DVD Part ...

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