Mitsubishi Electric 1786FD2 Service Manual page 80

MEA 1786FD2 CRT Monitor Service Guide
4. No Raster
CHECK
POWER SUPPLY
CHECK
POWER SAVING
CKT
OK
REPLACE
NG
LED LIGHT
YES
CHECK
Q302
NG
OK
CHECK STEP-UP CKT
Q312, D318
OK
CHECK
POWER SUPPLY
NO RASTER
NO
CHECK FR705
=45V
NG
REPLACE
NG
Trouble Shooting
HV ABNORMAL
M103 CONNECTOR
YES
LOOSE. (ON V/B)
CHECK G1 VOLTAGE
G1 = 0 VDC
CHECK IC201
(TDA4856)
5