Sony KDL-43W755C / KDL-43W756C / KDL-43W800C / KDL-43W805C / KDL-43W807C / KDL-43W808C / KDL-43W809C / KDL-50W755C / KDL-50W756C / KDL-50W800C / KDL-50W805C / KDL-50W807C / KDL-50W808C / KDL-50W809C / KDL-55W755C / KDL-55W756C / KDL-55W800C / KDL-55W805C / KDL Service Manual ▷ View online
Status
White Center
LED
Side RGB LED Side Amber
LED
Remarks
Power O ff
( by power saving switch off and
*1)
Off
Off
Off
*1 power switch off (by side
key)
Power O n
White
Off
Off
STBY/i.LINK STBY/PC STBY
( by remote c ontrol of f only )
Off
Off
Off
Picture Off
White looping White one shot
Off
Device C onnection
White
Cyan on e s hot
Off
Power ON Animation
White
White one shot
Off
Sleep T imer/On
Timer/Reminder/REC T imer/Photo
Frame
( Power On )
White
Amber
One shot ->
Lit*2
Off
*2 One Shot is only user
action.
On Timer/Reminder/REC Timer
( Deep Standby )
Off
Off
Amber
After 5 minutes, side amber
LED On
Self Diagnosis
Off
Red
Blinking
Off
The number of LED blinking
indicates c ause of failure
( refer to Led Error / Triage
chart)
Aging mode
White
Green Blinking
Off
Blinking:0.5sec On / 0.5sec
Off
Software U pdating
white blinking white blinking
off
Software Updating f inish
White
Blue lit
off
Test Reset
White
white blinking
Amber
blinking
Error of panel ID
White
Green / Amber
Blinking
Off
Blinking:0.5sec On / 0.5sec
Off
REC (SCART REC & HDD
REC/LIVE PAUSE) [AEP/J only]
White
Red(Pink)
One shot ->
Lit*2
Off
*2 One Shot is only user
action.
ePOP/
Shop Illumination
White
Cyan l oop
Off
One shot Center White when
feature c hange
9
Self Diagnostic Function
2-4. Standby LED Error Display
2-2. LED Display Control
When safety shutdown occurs, Standby LED display reports the cause by using the lightning
patterns as indicated below
.
3.0sec
3.0sec
0.5sec
0.5sec
Example: T he figure above s hows LED display when SHUTDOWN is caused by Audio
Error. It repeats flashing for a specified number of times in 0.5sec/cycle and has a 3 seconds
interval of lighting off. Please note that a 3 seconds interval of lighting off is fixed regardless of abnormal s tate types.
2-3. LED Pattern
Smart
Core RED
LED
blinking
count
Detection Items
Board Error Item
2x
Main 19.5V overvoltage [MAIN_POWE]
* This failure is not saved
* This failure is not saved
Power Adapter
BMX Board Error
3x
Main 5.0V failure [DC_ALERT]
BMX Board Error
Audio amp. protection [AUD_ERR]
BMX Board Error
Speaker
Tuner or demodulator I2C NACK [TU_DEMOD]
BMX Board Error
5x
Panel ID EEPROM I2C No ACK (Also panel
power failure is a suspect) [P_ID_ERR]
-
detect at startup sequence only
Panel module
Tcon board
BMX Board Error
-FRC device I2C No ACK [FRCTC_I2C]
-FRC device Initialization failure [FRCTC_I2C]
-detect at startup sequence only
Tcon board
6x
LED driver [BACKLIGHT]
LED driver (LD) board
7x
Over temperature protection [TEMP_ERR]
Temp. sensor I2C NACK [TEMP_ERR]
Temp. sensor I2C NACK [TEMP_ERR]
BMX Board Error
Remarks For 3x blinking :
Tuner error don’t have Red LED blinking indication.
2-5. Triage Chart
Self Diagnostic Function
10
Secondary possible defective part
Not Applicable
Not Applicable
Most likely defective part
Reference
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
No
Power
Video
- missing or distorted
Remote Network
Audio
Skype
Smart
Core
Bluetooth
(BT)
2
3
4
5
6
7
8
9
10
No White
Power
LED &
does not
response
to remote
(Dead
Set)
Stationary
coloured
lines or
dots
No
video
One of
Inputs
No
video
all
Inputs
No
Remote
Wireless
can't
connect
No Audio
Skype
Can't Work
Smart
Core no
LED (Set
is still
alive)
Bluetooth /
One Step
Remote
(OSR) can't
connect
B* Board
G* Board
H* Board
Speaker
Wifi & BT
Module
LD Board
LVDS FFC
Tcon
LCD Panel
Problem
Power Power LD
Panel
(Tcon)
Panel
(Backlight) TEMP
Soft-
ware Emitter
Audio
FAN
(N/A)
Local
I2C
Size
B* Board
G* Board
H* Board
43”
BMX
Not applicable HSC3_S_M
50”
BMX
Not applicable HSC3_S_M
55”
BMX
Not applicable HSC3_S_M
11
3-1. NO POWER
SECTION 3
TROUBLESHOOTING
Troubleshooting
3-1-1 No Power – LD Board
No Power
Check Fuse
F1000
B* Board
OK
NG: DC Voltage is 0V
DC/DC converter check
NO POWER: MUFFIN
Check 19.5V_SS
JL1000
MOSFET Q1003
broken
NG: DC Voltage is 0V
Check connection
harness
CN4001
OK
OK
Symptoms
Symptoms
Check DIODE
D1001
DIODE D1001
broken
NG: Diode are shorted
FUSE F1000
broken
OK
Check Fuse
12V DDCON
F9104
OK
FUSE F9104
broken
NG: DC Voltage is 0V
Size
B* Board
G* Board
H* Board
43”
BMX
Not applicable HSC3_S_M
50”
BMX
Not applicable HSC3_S_M
55”
BMX
Not applicable HSC3_S_M
12
Troubleshooting
Board Name
Board PWB (A side)
Detail
LDB1
(XMDT 43,
XMAT 43)
F1000
D1001
JL1000
CN4001
F9104
LDB2
(XMDT 50,
XMAT 50)
F1000
D1001
JL1000
CN4001
F9104
JL1000
F1000
CN4001
F1000
Details
CN4001
JL1000
D1001
Details
D1001
F9104
F9104
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