Service manual

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59!
2. No Display on Screen (Screen is black, LED is off)
-
Check
Check that C202 positive is at 5V. ( FIG 2.)
Check that the voltage level of CN100 is
approximately 12V
Check CN301 pin1
is12V, pin5 is 5V
IC100 failure
FB100, FB101
failure
F100 or power board failure
YES NO
YES NO
YES NO
Inverter failure
Check IC400
Pin 114 failure
YES NO
ViewSonic Corporation
Confidential – Do Not Copy VX700-3
Is screen black?