NEC MultiSync FP1350 - 1 No Raster

7-2
1. NO RASTER
Remove the CN-K, measure the voltages at K1(220V), K2(14.5V), K4(-15.6V) and
CN-P P3(80.2V),P6(8.5V) on the SW/HV PWB (PWE-571)
NG
OK
Check H and V sync input.
NG
OK
Judge peculiar noise of HV generated at power SW or static electricity.
NG
OK
Measure the voltage at IC7F1 3 pin on the CRT PWB (PWE-567C).
NG
OK
Measure the voltage at TP-G2 on the CRT PWB (PWE-567C). Normally,
screen voltage is 700±5V.
CONTINUE
Check 220V line
Check 80.2V line
Check 14.5V line
Check -15.6V line
Check 8.5V line
Check SW REG. (see item 13 )
Is LED power
indicator green ?
Check PMS (see item 11)
Check HV operation
Check H OSC/DEF/HV circuit (see item 6)
Check 6.2V line
R7F5,IC7F1 and their ambient circuit failure
Check the screen voltage