ViewSonic VLCDS23722-1W Service Manual page 15

J3 , +12V
DPWBN5396T8---B
INPUT
Debug Procedure
YES
NO Does the screen
Display?
Solution with
No display
(2)
NO Display
ok ?
Lost some
YES
NO
Loss of
bits
YES
RGB??
of RGB??
CHK R7(R ),
R5(G),R3(B)
NO
YES
CHK
CHK
U5 pin 33~36
LP2 ~ LP3
(PUSH KEY SWITCH)
ViewSonic Corporation
VE500-1
12
Confidential – Do Not Copy