Advertisement
Power indicator is green.
Does the B+ output
voltage appear at the
secondary side of T601?
Yes
Does the output
6 | pulse appear at the
pin 21 of 1C401?
No
Check 10401.
Check 0501,0503 and 0505.
Does the pulse appear at
the emitter of 0503?
Does the pulse appear at
Ey
_sithe drain of 0505?
Check horizontal deflection
output part.
Power indicator is orange.
3] Does the pulse appear at
the gate of D505?
Check 0501, 0503 and Q505.
Does H/V sync pulse
appear at pins 27
and 29 of 1C201?
No
Check signal cable connection
and the signal sources.
Check MICOM and 1C201.
Yes
Does H/V sync output
appear at pins 26
and 30 of 1C201?
Check IC401.
Samsung Electronics SyncMaster 15GLi
§ Troubleshooting
WAVE FORMS
No
Check the power
supply circuits.
qe ee
ALLL
9-3
Advertisement
