Service manual

Page 22
MD 1772LB (B1770NSL/T)
MEDION
6-2 OSD Abnormal
Put on
I502
Replace them
No
Check I502
missing?
Check R530,
R532, R531
OK?
OSD Abnormal
Yes
No
No
Replace it
Yes
Yes
Check JP806, L504,
L505 OK?
Replace I502