Sony KDL-40EX520 Service Manual page 78

Before you make the service call...
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring
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
Reference
BATV BOARD
GE3A BOARD
HLR2 BOARD
TCON Board
LCD Panel
Problem
POWER
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523
Sony KDL40EX521
ONLY THE MOST LIKELY PART
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
2 3 4 5 6
   

 


AUDIO/ BACK- BACK-
POWER LIGHT TCON LIGHT
FIGURE APPENDIX B-7. KDL-40EX521 MODELS ONLY
APPENDIX B - TRIAGE SHEETS
Technical Triage Summary Sheet
for that symptom.
No
Power
Green LED Blinking No Green
Constantly ON/OFF Power LED
Cycling (Dead Set)
*7
▲




TEMP
Chassis:
LAST UPDATED:
Video Remote
Whole Isolated
No
No video Screen area
Remote
Distortion Distortion
  
 
▲ ▲

 
* ONLY IF 7X SHUTDOWN OCCURS IMMEDIATLEY
AZ2F
4/12/2011
Audio
REF #
No Audio

151
101
153
N/A
202
B-7