Sony KD-49X7 D Series Service Manual page 65

LED BLINKING: 5x (Panel Communication Error)
BM2+DPA
5-times blinking
Check
"+12.5V_TCON" at
R5243
on DPA
OK
Symptom
Replace the Harness
improve
Between G Board
and DPS
NG
Replace
the V-By-One FFC
NG
NG OK
Replace G Board
G Board suspicious
NG
Harness is
suspicious
Symptom
improve
V-By-One FFC
is suspicious
TV Business Division
NG
Change
Panel (T-con)
Symptom
improvement
Panel (T-Con) is
suspicious
65
NG
BM2 board
Change
suspicious
DPA board
Symptom
improvement
DPA board is
suspicious
65