BenQ PE8700 service manual Connector board trouble shooting guide, Ok?

4. Connector board trouble shooting guide.

S-video is OK?

Composite is OK?

Component is OK?

DVI- A is

OK?

DVI-D (HDCP)is OK?

YPbPr is OK?

BNC-PC is OK?

J6 12V output?

No

No

No

No

No

No

No

Check L14,L17

Check U5

Check U10

Check L13

Check U5

Check U10

Check L15,L16,L18

Check U10

Check L28,,L29,L31,L32,L33 Check U17

Check U18 DDC

Check U17

Check L2,L3,L4

Check U2

Check U7

Check L2,L3,L4,L5,L6 Check U2,U3,U4

Check F1

Check Q2

Check L24

Check Q3

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