ViewSonic Pro8400 Series VS13647 Service Manual page 32

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Signal Troubleshooting
Computer
No Signal
Check
Source
OK
Check
Cable
OK
Check
Output signal
ViewSonic Corporation
NG
Turn on
Source
NG
Replace
Cable
NG
Replace
Main board
29
Video
No Signal
NG
Check
Source
OK
NG
Check
Cable
OK
NG
Check
Main board
Confidential - Do Not Copy
Turn on
Source
Replace
Cable
Replace
Main board
Pro8400

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