Sony KDL-46HX800 / KDL-55HX800 Service Manual ▷ View online
KDL-46/55HX800(CH)
29
TROUBLE SHOOTING
4) 5 times blinkings (T-con Error)
5 times Blinkings
Check PANEL_VCC
at JL3806
on the BAL Board
G6B Board
Between G6B to Panel
harness check
(a)
LVDS Harness
check
Panel (T-con)
change
BAL Board
Harness
LVDS Harness
Panel (T-con)
about 5V ： 22” Model
about 12V : ex. 22” Model
about 12V : ex. 22” Model
(a) exclude 60Hz Panel Model
NG
OK
NG
OK
NG
NG
OK
OK
KDL-46/55HX800(CH)
30
TROUBLE SHOOTING
5) 6 times blinkings (Backlight Error)
6 times Blinkings
Check the harness
between the T-con board
and the LED driver board
Harness
Change G6B board
Check FFC connection
between the LED driver
Board and the light source
(inside the panel module)
Change the LED
driver board (Panel)
LED Driver Board
(Panel)
G6B Board
FFC Connection
Light Source
(inside Panel Module)
NG
OK
OK
NG
NG
OK
NG
OK
KDL-46/55HX800(CH)
31
TROUBLE SHOOTING
6) 7 times blinkings (Temperature Error or RGB sensor I2C Error)
7 times Blinkings
Setting circumstance
is OK?
Temperature,
Ventilation, etc.
Harness BAL to HLR
Set to another
Location, etc.
Change the harness
between BAL board
to HLR board
NO
NG
YES
OK
Change HLR board
Change BAL Board,
and Aging a few hours
RGB Sensor
Problem
*
OK
BAL Board
OK
Panel
* On Self Check Display
000:RGB_SEN -> No count
007:TEMP_ERR -> Increment
007:TEMP_ERR -> Increment
KDL-46/55HX800(CH)
32
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Press HOME Key
XMB (Menu) displayed?
Replace
the LVDS harness
G6B Board
Check the harness
No
Change BAL board
Change G6B board
BAL Board
Harness
Harness
(LVDS)
(LVDS)
BAL Board
LCD Panel
(T-con, LED Driver)
Yes
OK
NG
NG
OK
NG
OK
NG
OK
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