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DVD
SYMPTOM
DVD PART
1) No Power
2) No Picture
3) No Sound
4) Sound no good
5) Can not read DISC
6) No key function
7) No remote control function
Remark: Upgrade the firmware step: 1. Rename the file name to "MTK.BIN";
CAUSE
& Power source is not correct.
The positive and negative does not
match the unit.
& Power button defective.
& Defective triode U7.
& Defective U10 (24C02N).
& Defective U5.
& Defective IC MTK1389E.
& Defective U14 (C4558).
& Defective U1 (14053).
& Defective U2.
& Defective U14.
& Defective U18.
& PICK-up Laser is defective.
& Defective IC MTK1389E.
& Defective REMOTE.
& Key is Defective.
2. change the CDs name to "MEDIATEK"
3. copy the upgrade firmware file to CDs
4. Playback the CDs and according to cue on upgrade
-8-
REMEDY
& Replace power source.
& Change the position of
positive and negative.
& Replace power button.
& Replace U7.
& Replace U10 (24C02N).
& Replace U5.
& Replace IC MTK1389E.
& Replace U14 (C4558).
& Replace U1 (14053).
& Replace U2.
& Replace U14.
& Replace U18.
& Replace pick up.
& Replace IC MTK1389E.
& Replace REMOTE.
& Replace keys.
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