Sony XBR-55X900H Service Manual page 60

2020/06/27 06:31:32 (GMT+09:00)
4.0 No Picture
BM5S Board OLED Model
No Picture
Got Any Normal
Display?
Yes
Refer to other part:
Video, Tuner, HDMI
Panel
(T-CON)
SECTION 1
T R O U B L E S H O O T I N G
No
Check Smart Core
Behavior
(Blinking)
Yes
Refer to self diagnosis
Part(flow 2.x)
NG
Replace
the main Board
Symptom
improvement
Main board NG
SECTION 2 SECTION 3
S E C T I O N 3
No
Refer to the flow 1.0
and check the power
supply problem
Yes
Power supply problem
Check around IC413 on BM5S.
Check
FE_PANEL_PWR_ON(CL445)
BL_ON(CL446)
No
AC_DET_FE_OR_BE(CL447)
EVDD_DET(CL448)
are voltage >3V ?
and
TCON_INT_ERR(CL449)
is voltage < 0.5V ?
Yes
Change
IC413
SECTION 4
Replace
No
the V by One FFC
Harness
(CN6800,CN6801@BM5S)
Symptom
improvement
V by One FFC
Harness
No
TCON_24_ON(CL451)
TCON_12_ON(CL452)
are voltage >3V ?
(T-CON)
SECTION 5 SECTION 6
NG
Check
And
Yes
Panel
60
SYS SET