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Roadstar DVD-5105 Service Manual
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Roadstar DVD-5105 Service Manual

Roadstar DVD-5105 Service Manual

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DVD-5105

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Summary of Contents for Roadstar DVD-5105

  • Page 1 DVD-5105...
  • Page 2 Name Specification Q’ty /Note NTSC/PAL PVM-14N6E EC TV (14”) Schneider STV 365 230V~50Hz 50Watt Transformer 220V Oscillator OS-9100D 100MHZ Video/Audio Cable Lotus terminal Video Cable Lotus terminal S-video Cable DVD Power Cable CBS test disc NF-200 test disc PAL Navigation Files Test Disc V1.1 TCD-731RA test disc Vertical Deviation 0.54~1.0mm...
  • Page 3 CODE Description of Trouble Note Power Test No Power Power LED off or in poor brightness Abnormal LED display or no display at all. Time-consuming loading Remote controller in poor contact or not working. Run In after turning unit on, no test available. System breakdown after turning unit on.
  • Page 4 SCART Audio right no waveform (audio) or abnormal waveform (audio) OPTICAL no waveform (audio) or abnormal waveform (audio) Earphone Test Earphone no sound or sound with pause, noises, interference or echo. Earphone (right) no sound or sound with pause, noise or interference. Earphone (left) no sound or sound with pause, noise or interference.
  • Page 5 III Mechanical Appearance Diagram...

  • Page 9: Maintenance

    IV Maintenance T01 No Power 1. Power Board Remove the top cover and check if the 12pin Cable connected to the Power Board is correctly plugged on the right position, or you may have to plug it again for a test. If the above step does not work, remove the fixation screw from the Power Board and replace the Power Board.
  • Page 10 Remove the top cover and check if the 12 pin Cable connected to the Power Board is correctly plugged on the right position, or you may have to plug it again for a test. Use a universal wattmeter or an oscillator to test for 5V between Main Board J13 Pin 3 and GND, if not, it would suggest poor Power Board.
  • Page 11 T08 System breakdown during play 1. Main Board Remove the top cover and check if all Flat Cables connected to the inside of the device is plugged correctly on the right position, or you may have to plug it again. Remove F/W and replace it with a new F/W or plug F/W correctly before checking if it works correctly.
  • Page 12 T11 NO DISC 1. Main Board Remove the top cover and check if the 40 pin Cable connecting DVD-ROM and Main Board is correctly plugged on the right position, or you may have to plug it again. Check the resistors or bus resistors on Main Board J12 for missing welding, cold welding, wrong parts or reverse welding.
  • Page 13 Use a universal wattmeter or an oscillator to test for 5V between Main Board J13 Pin 2, 3 and GND, if not, test if RX7 produces 5V, if so, go to the next step. Use an oscillator to test if Y2 creates 27MHz, if not, check C58 and C59 to see if its to be 22P.
  • Page 14 1. Main Board Check U15 for missing, cold-welding or short-circuit and eliminate if any. Check U6, X2, U14 and U15 for missing welding or cold welding and eliminate if any. If none of the above steps works, replace MAIN BOARD. DVD-ROM In case of pause, skip tracks on the screen, be sure to verify for scratches or dirt on the disc, if none replace DVD-ROM...
  • Page 15 If none of the above steps works, replace MAIN BOARD. TA0 Abnormal menu setting 1. Main Board Check U6 for missing or cold welding and eliminate if any. If none of the above steps works, replace MAIN BOARD. T30 Audio 1/(left) no sound or abnormal sound 4.
  • Page 16 1. Main Board Check U9 on Main Board for missing welding, cold welding, short circuit, interruption, missing parts or wrong parts, if any, correct. Check post U9 for missing welding, cold welding, short circuit, interruption, missing parts or wrong parts, if any, correct or replace U9. Update F/W and confirm for improvement.
  • Page 17 If the above step does not work, replace the Main Board. DVD noise 1. Power Board Remove the top cover and check if the Flat Cable connected to Power Board is correctly plugged in the right position, it not, plug it again for testing. If the above step does not work, remove the fixation screw from the Power Board and replace the Power Board.
  • Page 18 parts or wrong parts, if any, correct. Update F/W and confirm for improvement. If none of the above steps works, replace MAIN BOARD TB3 SCART Audio - No waveform (sound) or abnormal waveform (sound) 1. Main Board Check if Cable between SCART Board and Main Board is properly plugged, if not, correct it.
  • Page 19 2. Main Board - Check U6 for damages and check if any post parts experiences cold welding, missing welding, short circuit, interruption or missing parts, if any, correct it. If none of the above steps works, replace Main Board Front Board Check U1 for damages and check if the parts behind it experience cold welding, missing welding, short circuit, interruption or missing parts, if any, correct it If none of the above steps works, replace Front Board.
  • Page 20 missing parts. If none of the above steps works, replace Main Board or update new F/W. T72 No play or system breakdown after system setting Main Board Check U8 and U10 parts for missing welding, cold welding or replace U12. If none of the above steps works, replace Main Board or update new F/W.
  • Page 22 MEPG BOARD...

  • Page 31: Front Board

    FRONT BOARD...

  • Page 42: Amp Board

    AMP BOARD...