Sony KDL-32EX421 / KDL-32EX520 / KDL-32EX521 / KDL-32EX523 / KDL-40EX520 / KDL-40EX521 / KDL-40EX523 / KDL-46EX520 / KDL-46EX521 / KDL-46EX523 Service Manual ▷ View online
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523 C-2
APPENDIX C - REPLACING THE LCD PANEL
4. Placing one hand between the LCD Panel and the
bezel, gently start to lift the panel away from the bezel.
Lift up by
holding the
portion of
the panel.
DO NOT
hold onto
the LCD cells
5. Continue the process until the panel is removed from
the bezel.
Lift slowly
removing
one section
at a time.
REATTACHING THE LCD PANEL ONTO
THE BEZEL
The double-sided tape used to adhere the LCD Panel to the Bezel
should be replace whenever the panel or the
bezel
is replaced.
1. Place the replacement bezel face down on a soft cloth.
2. Ensure that all of the original tape has been removed
from the LCD panel and the bezel.
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523 C-3
APPENDIX C - REPLACING THE LCD PANEL
3. Using the following illustrations, place the double-sided
tape onto the bezel.
32”
32” MODELS USE 2 PIECES
40”
40” MODELS USE 2 PIECES
46”
46” MODELS USE 3 PIECES
4. Place the top of the LCD Panel onto the bezel.
a. Adjust the right and left side so the panel fits
securely onto the bezel.
b. Slowly place the bottom of the panel within the
bezel.
a
b
5. Ensure the panel is securely placed inside the bezel.
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523 D-1
APPENDIX D - TRIAGE SHEETS
The following Triage documents are for general reference purposes. To access the most recent version of theTriage documents for the models
listed in this manual, login into the Sony Authorized Servicer Portal at
www.sony.com/asp
.
KDL-32EX421/32EX423 ONLY
Before you make the service call…
1. Confirm the symptom from the customer.
Chassis:
AZ2F
2. Select that symptom from the chart.
3. Bring
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:
6/9/2011
Remote Audio
2
3
4
5
6
*7
8
Green LED
Constant ON
No Green
Power LED
(Dead Set)
No video
Whole
Screen
Distortion
Isolated
area
Distortion
No
Remote
No Audio
REF #
BATV BOARD
▲
▲
151
GE2A BOARD
101
HLR2 BOARD
153
Service Bulletin
(See Appendix Section)
Software Update
TCON Board
▲
▲
N/A
LCD Panel
202
Problem
POWER
AUDIO/
POWER
BACK-
LIGHT
TCON
BACK-
LIGHT
TEMP
WDT
Sony
KDL32EX421
Technical Triage Summary Sheet
Reference
5. Chart Color Code
BLUE TRIANGLE: Secondary possible defective part
Video
No
Power
* ONLY IF 7X SHUTDOWN OCCURS IMMEDIATLEY
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
See
Reference
Library
FIGURE APPENDIX B-1. KDL-32EX421 MODELS ONLY
KDL-32EX421/32EX423/32EX520/32EX521/32EX523/40EX520/40EX521/40EX523/46EX520/46EX521/46EX523 D-2
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
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:
6/9/2011
WIRELESS
LAN
Remote Audio
2
3
4
5
6
*7
8
Green LED
Constant ON
No Green
Power LED
(Dead Set)
No video
Whole
Screen
Distortion
Isolated
area
Distortion
Not Working
No
Remote
No Audio
REF #
BATV BOARD
▲
▲
151
GE2A BOARD
101
HLR2 BOARD
153
Wireless LAN Card
106
Service Bulletin
(See Appendix Section)
Software Update
TCON Board
▲
▲
N/A
LCD Panel
202
Problem
POWER
AUDIO/
POWER
BACK-
LIGHT
TCON
BACK-
LIGHT
TEMP
WDT
Sony
KDL32EX423
Technical Triage Summary Sheet
Reference
5. Chart Color Code
BLUE TRIANGLE: Secondary possible defective part
Video
No
Power
* ONLY IF 7X SHUTDOWN OCCURS IMMEDIATLEY
See Reference
Library
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
FIGURE APPENDIX B-2. KDL-32EX423 MODELS ONLY
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