Abnormal Horizontal Deflection - ViewSonic Q51 series Service Manual

6.5 ABNORMAL HORIZONTAL DEFLECTION

1.ABNORMAL HORIZONTAL WIDTH OF VIDEO
READJUST H-WIDTH FUNCTION
CHECK THE FBT B+ VOLTAGE
ABOUT 85V AT FH=31KHZ
CHECK THE HV OF CRT ABOUT
23.5KV
2. ABNORMAL HORIZONTAL VIDEO CENTER
CHECK IC401 PIN26-30 RELATIVE
CIRCUIT
3. ABNORMAL HORIZONTAL LINEARITY
CHECK L401, Q410, AND IC101 PIN 31
OK NG
NG
OK
CHECK THE RELATIVE CIRCUIT
OF Q404 Q405 Q406
CHECK THE RELATIVE CIRCUIT
OF SMPS.
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