48
4.0 No Picture
No Picture
Got Any Normal
Display?
No
Yes
Check Smart Core
Behavior
(Blinking)
Yes
Refer to self diagnosis
Part(flow 2.x)
Refer to other part:
Video, Tuner, HDMI
Refer to the flow 1.0
and check the power
supply problem
Yes
Power supply problem
No
Replace
the V by One FFC
Harness
(CN6800,CN6801)
V by One FFC
Harness
Symptom
improvement
NG
No
Replace
the Main Board
Main board NG
Symptom
improvement
Panel
(T-CON)
NG
Check
TCON_24_ON(CL451)
And
TCON_12_ON(CL452)
are voltage >3V ?
Yes
Panel
(T-CON)
Check FE_PANEL_PWR_ON
(CL445) BL_ON(CL446)
AC_DET_FE_OR_BE(CL447)
EVDD_DET(CL448)
are voltage >3V ?
And TCON_INT_ERR(CL449)
is voltage < 0.5V ?
Yes
Change
IC413
No
No
Check around IC413 on BM5S21.
T R O U B L E S H O O T I N G
SAFETY NOTES
SELF DIAGNOSTIC FUNCTION
TROUBLESHOOTING
SERVICE ADJUSTMENT
DIAGRAM
HANDLING GUIDE
48
SYS SET
2021/02/04 23:38:48 (GMT+09:00)