Service manual

31
SECTION 4
G2 = 400 to 650 V
(Do not clockwise turn the
Screen VR to extreme )
No Raster
High Voltage exist
Replace
T101(FBT)
I301 Pin3
HUNLOCK HIGH ?
P410 CONNECTION
proper ?
TO SECTION 6 : Horiz.
Line, No Vert. output
TO SECTION 5 : Vert.
line, No Horiz. output
YES
No
YES
NO
YES
Check IIC bus
from Pin27,28 of
IA01 to
IA02,I301,I901
Check IA01 and its
peripheral CKT
NO
NO
Replace IA01
ViewSonic Corporation
Confidential – Do Not Copy
P90f-1