Sony KDL-48W7 C Series, Service Manual

Page: 9 / 193

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: The figure above shows 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 state types.
2-3. LED Pattern
Smart
Core RED
LED
blinking
count
Detection Items Board Error Item
2x
Main 19.5V failure [MAIN_POWE]
* This failure is not saved

Power Adapter

BAXL Board
3x
Main 5.0/3.3/1.0 failure [DC_ALERT]
* 5.0/1.0V failures are not saved.

BAXL Board
Audio amp. protection [AUD_ERR]

BAXL Board

Speaker
HDMI equalizer/switch I2C NACK [HDMI_EQ]
* There is Temp. sensor on the same I2C bus

BAXL Board
Tuner or demodulator I2C NACK [TU_DEMOD]

BAXL Board

Tuner Board
AFE device I2C NACK [AFE_I2C]

BAXL Board

Tuner Board
AFE device SPI NACK [AFE_SPI] * only for AEP,CH

BAXL Board

Tuner Board
4x
LED driver failure [LD_ERR]

LED driver (LD) board

Panel Module
LED voltage error [VLED]
5x
Panel ID EEPROM I2C NACK (Also panel power failure is a
suspect)
[P_ID_ERR]
(*detect at startup sequence only)

Panel module

Tcon board

G** Board

BAXL Board
6x Backlight failure [BACKLIGHT]

LED driver (LD) board
7x
Over temperature protection [TEMP_ERR]
Temp. sensor I2C NACK [TEMP_ERR]

BAXL Board
8x
Software Error (Also the main board’s memory or CAM module is a
suspect)

BAXL Board
9x Tuner board error [TU_BOARD]

Tuner Board
Status
White Center
LED
(applicable for
HSC2 only)
Side RGB LED
Side Amber
LED
Remarks
Power Off
( by power saving switch off and *1)
Off Off Off
*1 power switch off (by side
key)
Power On White Off Off
STBY/i.LINK STBY/PC STBY
( by remote control off only )
Off Off Off
Skype Call Receive White White one shot Off
Picture Off White looping White one shot Off
Device Connection White Cyan one shot Off
Power ON Animation White White one shot Off
Sleep Timer/On
Timer/Reminder/REC Timer/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
Failure Off
Red
Blinking
Off
The number of LED blinking
indicates cause of failure
( refer to Led Error / Triage
chart)
Aging mode White Green Blinking Off Blinking:0.5sec On / 0.5sec Off
End of Aging mode White Green Blinking Off Blinking:3sec On / 3sec Off
Software Updating white blinking white blinking off
Software Updating finish White Blue lit off
Test Reset White white blinking
Amber
blinking
Error of panel ID White Green Blinking
Amber
Blinking
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 loop Off
Size
B** Board Type
G** Board Type
H**
Board
Type
Tuner Board
America/
Asia/Europe
Japan
32”
BAXL
Not applicable HSC3 TUS TUW
40”
BAXL
Not applicable HSC3 TUS TUW
48”
BAXL
Not applicable HSC3 TUS TUW