NEC MultiSync FP1350 - Page 117

7-5
CONTINUE 1 CONTINUE 2
OK
NG
1) Measure the video input at IC711 pins 6(R), 11(G) and 2(B) on
VIDEO PWB (PWE-567A). The voltage is approx. 0.78Vp-p.
2) Measure the clamp pulse input at IC711 pin 19 on VIDEO PWB
(PWE-567A). The voltage is approx. 4.2Vp-p.
3) Measure the voltage at IC711 pin 15 on VIDEO PWB (PWE-567A).
The voltage is approx. 3.9V
DC
.
4) Measure the voltage at IC711 pin 30 on VIDEO PWB (PWE-567A).
The voltage is approx. 2.3V
DC
.
5) Measure the voltage at IC711 pin 17 on VIDEO PWB (PWE-567A).
The voltage is approx. 5.0V
DC
.
1)-5) OK
2) NG
3) NG
4) NG
5) NG
1) NG
Measure the video output at IC731 pins 35(R), 30(G) and 27(B) on VIDEO
PWB (PWE-567A). The voltage is approx. 0.78Vp-p.
OK
NG
Measure the video input at IC731 pins 2(R), 5(G) and 7(B) [BNC] or pins
11(R), 13(G) and 16(B) [D-SUB] on VIDEO PWB (PWE-567A). The
voltage is approx. 0.7Vp-p.
CONTINUE 1 CONTINUE 2
Q711 R/G/B failure.
Check IC711 input
IC711 failure.
IC7A1 failure.
C773 or Q772 failure.
D713 failure.
LC768 failure.
Check IC731
output (VIDEO)
C711 R/G/B or C712R/G/B failure.
Check IC731
input (VIDEO)