ViewSonic Pro8400 Series VS13647 - Verifying Repair: Logo and Signal Tests

4.2 Verifying the Repair
After repairing projector (Dissembling and assembling projector), Repair center should verify
the quality of repaired unit.
(1) Check Logo
Check Logo is correct after power on projector.
(2) Signal test (Each I/O can functio n normally)
Connect all connector to the jacks one after the other to check whether each channel can
project normally.
I/O port Monitor In (VGA)
Test Equipment
Standard Pattern generator (Ex. Quantum data)
Signal format
1920*1080 60Hz
I/O port Video
Test Equipment
Standard Pattern generator (Ex. Quantum data) or DVD player
Signal format
NTSC
I/O port S-Video
Test Equipment
Standard Pattern generator or DVD player
Signal format
480i
I/O port USB
Confidential - Do Not Copy
ViewSonic Corporation
Pro8400
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