Sony KDL-22CX520 Service Manual page 19

Self Diagnostic Function
3-4. NO PICTURE
3-4- . (HFR Model Only)
* Not applicable for these model
No Picture
Press HOME Key.
OSD displayed?
Yes
B* Board
Change G* Board
Symptom
improvement
G* Board
No
OK
Check the G*- LD*
Harness
Symptom
NG
improvement
Harness
NG
LCD Panel
(T‐con, LD*)
Replace
NG
the B-Tcon, Tcon-LD*
FFC FFC
Symptom
improvement
B‐Tcon, Tcon‐LD*
FFC
-18-
KDL- 22, 32, 40, 46 CX520
KDL-32, 40, 46 CX523
NG
Change B* Board
B* Board
RM-GD020, RM-CD013
RM-GD020