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17
6-5 ABNORMAL HORIZONTAL DEFLECTION
1. ABNORMAL HORIZONTAL WIDTH OF VIDEO
NG
OK
CHECK THE RELATIVE CIRCUIT
OF Q404, Q405, & Q406
CHECK THE RELATIVE
CIRCUIT OF SMPS.
READJUST H-WIDTH FUNCTION
CHECK THE HV OF
CRT ABOUT 24.5KV
CHECK FBT B+ VOLTAGE
ABOUT 62V AT FH=31KHz
2. ABNORMAL HORIZONTAL VIDEO CENTER
RELATIVE CIRCUIT
CHECK IC401 PIN 4, 7
3. ABNORMAL HORIZONTAL LINEARITY
AND IC101 PIN 36, 40
CHECK L401,Q426,Q428
Summary of Contents for P774B-2NT Series
Page 21: ...20 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY...
Page 39: ...38 10 IC BLOCK DIAGRAM IC401 STV9118 IC101 NT6865...
Page 40: ...39 IC102 24LC08...
Page 41: ...40 IC601 STV9302A IC801 NT6812K...
Page 42: ...41 IC802 LM2476 IC901 STR G5643D...
Page 43: ...42 11 PCB LAYOUT 11 1 MAIN PCB LAYOUT...
Page 44: ...43 11 2 CRT BOARD LAYOUT...