S er v ice M a nua lPortable DVD PlayerModel: DPC-7900 Series S/ M No. : OSPC790001 May. 2005 C aution: In this Manual, s ome parts can be change
- 6 - (2) POWER FOR TFT 111111 1-10V_TFT+15V_TFT+7.5V_TFTVSYNC#POWDET_MCU+3.3V_TFT+5V_TFT+5V_TRANVIN+3.3V+5VV18+3.3V_TFT+5V_TRAN9VINVOUT9VINCTR_LOA
1111Tr-10VRGNDGNDCC8911BGNDRS-2323246195PD17VccV1.718BC15Vs(Vc)LD(DVD)HOP1200/1200N(1240)D16A1141GND(NC)2VRF720E12Vcc21Fo+Very Important toreduce Nois
- 8 - (4) SDRAM&FLASH&EEPROM TSOP 48 pinIICDRAMFLASH16Mb32Mb8M 16M 32M FLASHdeleteDQ[0..15]AD[0..7]BA[0..1]DQM[0..1]MA[0..11]A[0..21]A9A3AD3
- 9 - (5) VIDEO OUTPUT 11TFT I/O2N39043CE2B1TFT_CVBS-10V_TFT9VIN+3.3V_TFT+7.5V_TFT+15V_TFT+5V_TFTASPDIFY[3..6]CVBS_TFTVIDEO_TVINT/EXTP/NASPDIF+5V_TR
- 10 - (6) AUDIO OUTPUT 11 1VREF5VVCCAUDVREF5VVREF5VA_IN/OUTRA_IN/OUTLACLKMUTE_DACALRCKACLKABCKASDAT0SDAT0SACLKSLRCKALRCKSBCLKABCKASDAT0DAC_MLSACLKS
- 11 - 3 Power 3.1 Power Supply Input voltage: Normal voltage: 100 to 240 Vac. Variation range: 90 to 264 Vac. Input frequency: Normal frequenc
- 12 - The battery pack shall return to normal operation only after the fault has been removed. A thermal fuse must be added on the surface of c
- 13 - 4 Dimension & Physical Characteristics 4.1 Outline Dimension 205mm(L) x 163.5mm(W) x 38mm(H) 4.2 Physical Characteristics 1
- 14 - 4.3 Exploded View 4.3.1 DVD Door & Mainbody_top module
- 15 - 4.3 Exploded View 4.3.2 Keyboard & Mainbody_top module
No.: Revision: 0.1 Date: Service Manual for Portable DVD DPC-7900 Se
- 16 - 4.3 Exploded View 4.3.3 Mecha & Mainbody_bottom module
- 17- 4.3 Exploded View 4.3.4 Mainbody module
- 18 - 4.3 Exploded View 4.3.5 Display module & Mainbody module
- 19 - 5 Regulatory Standards 5.1 Safety UL FDA 5.2 EMI CE FCC 5.3 Ergonomics Dolby - 15 - LVD
- 20 - 6 Service Tools and Equipment 6.1Service Tools and Equipment Table Application Name DVD Testing Disc General General Toolsscrewdriver etc.
3. Do not place the disc on a glass surface. It may damage the disc. If this happened, please use a new testing disc adjust DVD player precision.
- 22- or death. ● This unit should be situated away from heat source, such as amplifiers, radiators, stoves or any other units producing
- 23 - 7 Spare Parts 7.1 Key Parts List Location Part NO Part Name Description Maker Remark GKB2.855.8105MX MEPG Board H
- 24 - 8 Trouble Shooting 8.1 Error Code Table CODE Descriptions of Error Note Power Test T01 No power no action T02 Power Led indicator is not
- 25- T33 MP3 abnormal sound T34 Audio no waveform (sound) or waveform (sound) abnormal Earphone Test T41 Earphone no sound or the sound has p
Revision Record Date Rev No Section Description 17/ Dec./ 2005 0.1 New edition
- 26 - Please replace with a good one. C. Disassemble F/W, replace with a good one or re-plug it to see if the LED lights up when Power ON
- 27 - C. Remove the top cover, check all flat cables in the system to see if they arecorrectly plugged to the fixed positions, or re-plug them. D.
- 28 - replace the main board. T13Disc drive scratches disc Main Board A. Check the resistors or capacitors adjacent to IC(U17) to see if there
- 29 - correctly plugged to the fixed positions, or re-plug them. B. Use oscilloscope to measure if Y1 generates 27MHz. If it does not generate said
- 30- D. If the above actions do not work, then check U17 Pin179 and Pin181 to see if there is Y and C signals.E. If the above actions are not worki
- 31 - B. Remove and dis-assemble U7 with a 16Mbit SDRAM.C. If the above actions are not working, replace the Main Board. T31Audio /left channe
- 32 - B. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering and rule out the problem. C. If the above action does not work
- 33 - Main Board A. Check U17 to see if there is any cold or hollow soldering and reverse solderingof IC or parts missing. B. If the above actio
- 34 - A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are correct. B. Check VC1 to see if there is any cold or hollow solderin
- 35 - of IC or parts missing. E. Check Pin 1 to Pin 16 on U202 for any cold or hollow soldering and reverse soldering of IC or parts missing. F. If
1. General Descriptions …………………………………………………1.1. Model Features …………………………………………………………1.2. Information…………………………………………………………………2. Electrical Charac
- 1 - 1 General Descriptions 1.1 Model Features Video: DVD Playback, MPEG4(option) ,DivX(DivX Model),Kodak Picture CD compatible & JP
- 2 - 1.2 Information Disk Format DVD, VCD, CD, MP3, CD-R, CD-RW, MPEG4 (OPTION),JPEG, Kodak Picture CD, DivX(DivX Model),WMA Video System NTSC / PA
- 3 - 2 Electrical Characteristics 2.1 Optical Characteristics Parameter Specifications Unit Screen Size 7.0 (16:9 diagonal) inch Display Format
- 4 - 2.3 System Block Diagram 2.3.1. The System Block Diagram & the Block's Function Description
- 5 - 2.4 Schematic Circuit Diagram (1)POWER_MPS 1DELETA9VIN+3.3V+5VNCTR_5VCTR_5VLDO_AV33RFV33NCTR_5V9VIN+5V+3.3VCTR_5VNCTR_5V+3.3VRFV33+3.3
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