No Video - NEC MultiSync FE700 Serviceanleitung

4. NO VIDEO

NO VIDEO
OK
CHECK
SCREEN CONTROL
CLOCKWISE
OK
CHECK
U201 PIN 5, 8, 11
SIGNAL LEVEL
OK
CHECK
U201 PIN 18, 20, 23
SIGNAL LEVEL
OK
CHECK
U203 PIN 1, 3, 5
SIGNAL LEVEL
OK
CHECK
CATHODE VIDEO
LEVEL
OK
PROBLEM IN CRT
NG
NG
PROBLEM IN U201
NG
U201 12V VOLTAGE
OR U201 FAILIURE
PROBLEM IN U203
NG
12V, 80V VOLTAGE
NG
7- 5
REFER TO
"NO RASTER"
ON PAGE
TROUBLE IN
R/G/B SIGNAL,
SIGNAL CABLE
CLAMP(PIN 15),
OR U203 FAILURE
PROBLEM IN
R220, R240, R260