Troubleshooting - Sony KD-55X8 G Series Service Manual

Triage Chart
Before you make the service call...
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring all the boards and cables listed for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
5. Chart Colour Code
RED DOT: Most likely defective part
BLUE TRIANGLE: Secondary possible defective part
GREEN SQUARE: Tertiary possible defective part
BLACK TEXT: Board that may correct the symptom
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
Reference
2 3 4 5
B* Board
 
■
G* Board
(SL 55"/65"/ 
 ■
75"/85")
H* Board
LD* Board
 
(SLL 43"/49")
Speaker 
Tuner board
Wifi & BT
Module
V By One FFC

Tcon 
LCD Panel
■
Panel
(Communication
Power Power LD )
Problem
Audio BCM
Symptoms - no shutdown
Error log record only
TU_ AUD
TU_ TCO FRC FRC
DEM _ER
6 7 8 DEM N_E TC_ TC_I
OD_ R_I2
OD RR ERR 2C
I2C C
      
■
 ■

 


 ■
Panel
(Backlight
) TEMP 4KBE
SECTION 3

TROUBLESHOOTING

Video
No
Power - missing or distorted
TEM
No White Power LED
P_E EARC_ERR_ Stationary
& does not reponse No video One
colored lines
RR_ I2C
to remote (Dead of Inputs
or dots
Set)
I2C
    







CHASSIS:
Remote Network Audio
No video all Wireless
NO RF input No Remote No Audio
Inputs can't connect
    
 

 




■
■
SL
Smart Core Bluetooth (BT)
Bluetooth / One Step
Smart Core no LED (Set is
Remote (OSR) can't
still alive)
connect
 


18