Troubleshooting - Sony KD-43X7 F 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
BLACK TEXT: Board that may correct the symptom
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
Reference
2 3
B* Board
 
G* Board
 
H* Board
Speaker

Wifi Module
LD* Board

VBO FFC
Tcon/Source
Board
LCD Panel
Problem Power Power
Audio

TROUBLESHOOTING

4 5 6
  
 
 

 
  
Panel Panel
LD (Communication) (Backlight)
SECTION 3
Video
No
Power - missing or distorted
No White Power
Stationary
LED & does not No video
colored No video
reponse to One of
lines or all Inputs
remote (Dead Inputs
dots
Set)
  





Remote Network
Wireless
No Remote
can't connect
  





Audio Smart Core
Smart Core no LED
No Audio
(Set is still alive)
 



14
SYS SET