Sony XBR-43X830C / XBR-49X830C / XBR-49X835C / XBR-49X837C / XBR-49X839C Service Manual ▷ View online
XBR-43X830C, 49X830C, 835C, 837C, 839C
97
TROUBLE SHOOTING
3-3-4. 3 Times Blinking (HDMI EQ Error)
3-time blinking
IC5212
BMFL/BMFW board
Check
VS GND impedance
of +1.0V_HDMI
at HDMI EQ side
(ex.C5335)
NG
Check
VS GND impedance
of EQ_+3.3V_MAIN
at HDMI EQ side
(ex.C5317)
NG
OK
OK
IC5212
Check
VS GND impedance
of +5V_BOSTON
at HDMI EQ side
(ex.C5351)
NG
IC5212
OK
Check
Voltage
of +1.0V_HDMI,
EQ_+3.3V_MAIN,
+5V_BOSTON
at HDMI EQ side
(ex.C5335, C5317,
and C5351, )
NG
Power,
DDCON
OK
Check
Frequency of X’tal
(X5202)
27MHz?
NG
X’tal or
around parts.
X5202,
R5478(100ohm),
R5368(1Mohm)
C5298(10pF)
C5297(12pF)
OK
Check
I2C_C bus signal.
at CL5259 and
CL5261.
NG
IC5212
Or IC1000
OK
IC1000
This 3 times blinking function for HDMI EQ
error has been disabled for the SW later
than PKG2173.
So, for the above applicable models, you
can Ignore this flow.
For those models with the SW before
PKG2073.
This 3 times blinking function for HDMI
EQ error has been enabled except for the
sets with the SW updated by OTA.
error has been disabled for the SW later
than PKG2173.
So, for the above applicable models, you
can Ignore this flow.
For those models with the SW before
PKG2073.
This 3 times blinking function for HDMI
EQ error has been enabled except for the
sets with the SW updated by OTA.
XBR-43X830C, 49X830C, 835C, 837C, 839C
98
TROUBLE SHOOTING
3-3-5. 5 Times Blinking (Panel Communication Error)
5-times blinking
Check
“+12.5V_TCON” at
CN9000
on the B-Board
Replace the Harness
Between G-Board
and B-Board
Replace
the V-By-One FFC
Change
B-Board
Change
Panel (T-con)
Harness is
suspicious
V-By-One FFC
is suspicious
B-Board is
suspicious
NG
OK
NG
Symptom
improvement
Symptom
improve
Symptom
improve
NG
NG
G-Board is
suspicious
Replace G-Board
NG
Panel (T-Con) is
suspicious
Symptom
improvement
OK
XBR-43X830C, 49X830C, 835C, 837C, 839C
99
TROUBLE SHOOTING
3-3-6. 6 Times Blinking (Backlight Error)
Harness /
Connection
broken
6-times blinking
Check a voltage of
BL_ERR_DET.
Check point is
JL9007
or
23pin of CN9000
on B*Board
Voltage ≥ 1.9 V
Symptom
Improvement
Harness
Change
harness
Change
B* board
B* Board
Harness /
Connection OK
No improvement
Voltage < 1.8 V
Panel
Change
Panel
Symptom
Improvement
No Improvement
Symptom
Improvement
LED driver or G* board
Change LD board or G* board.
No improvement
LD board/G board
Symptom
Improvement
Check
harness/connection
G*board to B*Board
or
LD board to B*Board
XBR-43X830C, 49X830C, 835C, 837C, 839C
100
TROUBLE SHOOTING
3-3-7. 7 Times Blinking (Temperature Error)
7-time blinking
B* Board NG
Yes
Panel
NG
Change B* Board,
and Aging a few
hours
Setting
circumstance is OK?
Temperature,
Ventilation, etc.
Set to another
location, etc.
No
Symptom
improvement
Check I2C_C bus
communication OK?
(check the next page)
Yes
No
Temp sensor
IC1400
I2C_C bus dumping or
Muffin check
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