Triage Chart - Sony KD-43XE7 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 Color 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 4
B* Board
  
G* Board
  
H* Board
Speaker

Wifi Module
LD* Board

VBO FFC
Tcon/Source

Board
LCD Panel

Power Power LD
Problem
Audio
No
Power
No White Power
LED & does not
5 6
reponse to
remote (Dead
Set)
  
 
 


 
Panel
(Communicatio Panel
n) (Backlight)
Video
Remote
- missing or distorted
Stationary
No video
colored No video No
One of
lines or all Inputs Remote
Inputs
dots
   


 
 
 
Network Audio Smart Core
Wireless Smart Core no LED
No Audio
can't connect (Set is still alive)
 





16