Read Sony KDL-32EX720 / KDL-32EX723 / KDL-40EX720 / KDL-40EX723 / KDL-46EX720 / KDL-46EX723 / KDL-55EX720 / KDL-55EX723 Service Manual online
KDL-32EX720/32EX723/40EX720/40EX723/46EX720/46EX723/55EX720/55EX723 D-7
APPENDIX D - TRIAGE SHEETS
Before you make the service call…
1. Confirm the symptom from the customer.
Chassis:
AZ2F
2. Select that symptom from the chart.
3. Bring
ONLY THE MOST LIKELY PART
for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
RED DOT: Most likely defective part
LAST UPDATED:
6/2/2011
No
Power
Remote
Audio
2
3
4
No Backlight
4
Momentary
Backlight
5
6
*7
8
10
No Green
Power LED
(Dead Set)
No video
Whole
Screen
Distortion
Isolated
area
Distortion
No 3D
Double
images on
3D
No
Remote
No Audio
REF #
BATV BOARD
▲
▲
▲
▲
255
G6 BOARD
▲
256
G8 Board
251
HLR2 BOARD
153
HEM2 BOARD
151
LD Board
152
Service Bulletin
See Reference
Library
Software Update
See Reference
Library
TCON Board
See LCD
Panel
Manual
LCD Panel
302
Problem
POWER
AUDIO/
POWER
BACK-LIGHT
BACK-LIGHT
TCON
CONV
TEMP
WDT
IR
SYNC
Sony
KDL55EX720
Technical Triage Summary Sheet
Reference
5. Chart Color Code
BLUE TRIANGLE: Secondary possible defective part
* ONLY IF 7X SHUTDOWN OCCURS IMMEDIATLEY
Video
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
FIGURE APPENDIX D-7. KDL-55EX720 MODELS ONLY
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