MP-Man PDV-TY995, Руководство по обслуживанию

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TROUBLESHOOTING
SYMPTOM CAUSE REMEDY
DVD PART
1) No Power Power source is not correct.
The positive and negative does
not match the unit.
Power button defective.
Defective triode U31,U32
Defective U29
Replace power source.
Charge the position of positive
and negative.
Replace power button.
Replace U31,U32(cd4060)
Replace IC 74595
2) No Picture Defective U30 (24C16N).
Defective U35.
Defective IC (U34,CT219).
Replace U30 (24C16N).
Replace U35(SDRAM).
Replace IC CT219.
3) No Sound Defective U23
Defective U28
Defective U29
Replace IC (C4558).
Replace IC (TDA2822)
Replace IC 74595
4) Sound no good Defective U23 (C4558).
Defective U28 (TDA2822)
Replace U23 (C4558).
Replace U28 (TDA2822)
5) Can not read DISC Defective U37(CD5954).
PICK-up Laser is defective.
Defective U34 (CT219).
Replace U37 (CD5954)
Replace pick up.
Replace U34 (CT219)
6) No remote control function Defective IR1.
Key is Defective.
Defective MONITOR U11
ReplaceIR1.
Replace keys.
Replace IC 25LV512
7
）
Can not read CARD Defective J19
Defective U43
Defective U34 (CT219).
Replace J19
Replace IC AU6332
Replace U34 (CT219)
8
）
Can not read USB1 Defective USB1
Defective U43
Defective U34 (CT219).
Replace USB1
Replace IC AU6332
Replace U34 (CT219)