DAEWOO ELECTRONICS DPP-42A1GCSB, Service Manual

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[PDP42X3#### Module]
CONTENTS
Safety Precautions
Technical Feature
Formation and Specification of Module
1. Formation of Module
2. Information of Boards
3. Label information of Module
Adjustment
Trouble Shooting
1. Checking for No Picture
2. Hitch Diagnosis Following Display Condition
2-1. 1/2 of the screen doesn’t be shown
2-2. 1/4 of the screen doesn’t be shown
2-3. Screen doesn’t be shown as Data TCP
2-4. It is generated unusual pattern of Data TCP IC unit
2-5. Screen doesn’t be shown at all as Scan FPC
2-6. Regular stripe is generated at regular internal on the whole screen
2-7. Data copy is generated to stripe direction
2-8. The screen has one several vertical line
2-9. The screen has one or several horizontal line
2-10. Lightness of screen is wholly darken though there is input-signal-pattern
2-11. The screen displays other color partially on full white screen or happens Mis-discharge partially
on full black screen.
2-12. It doesn’t display a specified brightness at specified color
3. Checking for component damage
3-1. Y IPM(IC18) or Z IPM(IC2) damage
3-2. FET Ass’y(Y B/D : HS2) damage
3-3. SCAN IC(Y DRV B/D : IC1~10) damage
3-4. TCP damage
3-5. Crystal(CTRL B/D : X1) damage
Critical Components List
Records of Revision for Boards, Components and ROM DATA
* Annexing : Schematic Diagram