Service manual

6-5 ABNORMAL HORIZONTAL DEFLECTION
1. ABNORMAL HORIZONTAL WIDTH OF VIDEO
NG
OK
CHECK THE RELATIVE
CHECK THE
CIRCUIT OF
READJUST H
-
WIDTH
OF Q404, Q405, &
CHECK THE HV
CHECK FBT B+
CRT ABOUT 25.5KV
ABOUT 65V AT
2. ABNORMAL HORIZONTAL VIDEO CENTER
RELATIVE CIRCUIT
CHECK IC401 PIN 29
3. ABNORMAL HORIZONTAL LINEARITY
CHECK L401, Q426, Q428,Q431
24.5KV
19
ViewSonic Corporation Confidential
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Do Not Copy E70-11