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5-6 Horizotal Line
5-7 No Picture (Sound OK)
1
Check the Brightness, Contrast and Color adjustments
2. Check: AV Picture
3. See Signal Block Diagram
5-8 No Sound (Picture OK)
1. Check the Volume adjustment level.
2. Check AV Video
3. See Signal Block Diagram
Samsung Electronics
IC301(LA7845)
1# 13.5V, 6# 18V
Output?
Yes
Check IC301
Check/Replace Speaker
#2 Vertical wave
output?
Yes
D301,DZ302
DZ303,DZ304,DZ305
DZ306 check?
Yes
Replace IC301(LA7845)
No
Check/Replace
R425,R424,
D401,D402
No
IC301 #2 vertial
wave input check
No
Replace
Troubleshooting
5-5
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