Samsung LW17E34C 5 Troubleshooting
5 Troubleshooting
5-1 No Power
Does proper DC 14 V appear at DC jack connected to CN12?
Yes
Does proper DC 5 V appear at Pin 2 of IC11?
Yes
Does proper DC 14V
Does proper DC 3.3 V appear at
Does proper DC 2.5 V appear at Pin 4 of IC109 and IC17?
Yes
Check IC23.
No
Check SMPS PCB and adapter.
No
Check IC11.
No
Check IC11.
No
Check IC14.
No
Check IC109 and IC17.
LW15E33C/LW17E34C |
5-1 |
5 Troubleshooting
5-2 No Video (PC Signal)
Power indicator is green.
Yes
Does the signal appear at IC134, IC135, IC136 of R, G, B input?
Yes
Does the clock pulse
Does the clock pulse appear at output of <RA35~RA39, RA310>15”
Does the clock pulse appear at output of <R611~R620>15” <R611~R620, R61~R69, R610>17”?
Yes
Replace LCD panel.
No
Check CN11.
No
Check X21 and related circuit of X21.
No
Check related circuit of IC32.
No |
Replace <R611~R620>15” |
<R611~R620, R61~R69, R610>17”.
5-2 |
LW15E33C/LW17E34C |
Loading...