![background image](http://html1.mh-extra.com/html/viewsonic/ve175-2/ve175-2_service-manual_1021021020.webp)
6.3. NO
DISPLAY
Power key
work ok
Y
Check
DVDD_3.3
N
Check
I103
H/V sync
on pin 54,55
of I101
Check
pin 10,12 of I108
N
Y
Check R124
Check R.G.B. in
DATA
Check R.G.B.
input
N
Check
key-pad
Y
N
Check
P983
N
refer to
no power
Y
Check
pin 3,4 of P104
N
Replace
I101
Y
Check
I/O cable
N
Check
FPCLK,FPDE,
PFVS,PFHS
Y
Check
X101
N
Check R158 high
Check Q104
N
Y
Check R156
Voltage Range
Check Q101
N
Y
Invertor unit
failed
Replace
Y
Y
!
!
ViewSonic Corporation
17
Confidential
– Do Not Copy
VE175/b-2