Daewoo DPP-42A1LCSB, Service Manual

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[PDP42V7#### Module]
CONTENTS
Ⅰ. Safety Precautions/Technical Feature
Ⅱ.
Formation and Specification of Module
Ⅲ. Adjustment
Ⅳ.
Trouble Shooting
1. Checking for No Picture
2. Hitch Diagnosis Following Display Condition
2-1. All or 1/2 of the screen doesn’t be shown
2-2. Screen doesn’t be shown as Data TCP
2-3. It is generated unusual pattern of Data TCP IC unit
2-4. Regular Stripe is generated about the quantity of one Data TCP IC or more
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. One or more stripe is generated on the screen
2-9. One or more horizontal line is generated on screen
2-10. Lightness of screen is wholly darken though there is input-signal-pattern
2-11. Different color is shown partially during full-white-screen or electric discharge is generated
during full-black-screen
2-12. Some lightness of some color doesn’t not generated well
3. Checking for component damage
3-1. Y IPM(IC15) or Z IPM(IC2) damage
3-2. Pass Top FET(Y B/D: HS2) damage
3-3. FET Ass’y(Y B/D: HS1) damage
3-4. SCAN IC(Y DRV B/D: IC1~8) damage
3-5. TCP damage
3-6. Crystal(CTRL B/D: X1) damage
4. Shift breakdown component compatibility consideration
4-1. Scan IC follows in application, compatibility of Y DRV Top, Bottom B/D
Ⅴ.
Block Diagram
Ⅵ. Safety Components List
Ⅶ.
Records of Revision for Boards, Components and ROM DATA
* Annexing : Schematic Diagram