Abnormal Horizontal Deflection - Philips 107B7 Service Manual

17" CDT Color Monitor

7-5. Abnormal Horizontal Deflection

1.Abnormal Horizontal Width Of Video
READJUST H-WIDTH FUNCTION
CHECK FBT B+ VOLTAGE
ABOUT 62V AT FH=31KHz
CHECK THE HV OF
CRT ABOUT 25KV
2.Abnormal Horizontal Linearity
CHECK L401, Q426, Q420, Q427
AND IC101 PIN9, 10,11
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NG
OK
NG
OK
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CHECK THE RELATIVE CIRCUIT
OFQ406
CHECK THE RELATIVE
CIRCUIT OF SMPS.
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107B7