Samsung DP14LS Service Manual page 27

6 Troubleshooting
6-2-2 (b) Suspend Mode (H sync: OK, V sync: No)
Make sure that H sync is OK and V sync is
not. (Signal cable should be connected)
Is LED blinking? (0.5 sec toggle)
No
Are there 0V on IC201's Pin 5 (sus)
and 5V on IC201's Pin 6 (off)?
Yes
+12 V Off?
Yes
Done
6-2-2 (c) Stand-by Mode (H sync: No, V sync: OK)
Make sure that H sync is not and V sync is
OK. (Signal cable should be connected)
Is LED blinking? (0.5 sec toggle)
No
Are there 5V on IC201's Pin 5 (sus)
and 0V on IC201's Pin 6 (off)?
Yes
Is high voltage On?
Yes
Video Mute?
Yes
Done
6-8
Yes
Is OP201 OK?
Check and replace IC201.
No
Check and replace IC201.
No
Check and replace Q605 ~ Q608.
Yes
Is OP201 OK?
Check and replace IC201.
No
Check and replace IC201.
No
Refer to 6-2-3 No Raster and
6-2-12 High Voltage Failure.
No
Refer to 6-2-16 No Video and
6-2-13 I
Yes
No
Yes
No
2
C Failure.
Check and replace
OP201.
Check and replace
OP201.
DP14L*/DP15L*