Sony KDL-32EX425 / KDL-32EX525 / KDL-40EX525 / KDL-46EX525 Service Manual ▷ View online
KDL-32EX425/32EX525/40EX525/46EX525 27
SECTION 4 - TROUBLESHOOTING
DIAGNOSTIC CODE DESCRIPTIONS
The Diagnostic Table provides an overview of the number of times the Standby LED blinks and the possible location.
Diagnostic Item
Diagnostic Item
Description
Number of times
Standby LED
blinks
Possible Location
MAIN_POWER
Main Power Error
2
GE2 (Power) Board (KDL-32EX425/32EX525 ONLY)
GE3 (Power) Board (KDL-40EX525/46EX525 ONLY)
DC_ALERT
DC Regulator/Audio Error
AUD_PROT
Audio Error Detection
BALANCER
Balancer Error
4
BATV Board
TCON ERR
TCON Error
P_ID_ERR
Panel ID NVM Error
BACKLITE
Backlight Error
6
BATV Board
TEMP_ERR
Temperature Error
7
Ventilation
BATV Board
103 HOST_WDT Watch Dog Timer Notification
8
Service Bulletin (See Appendix Section)
Software Update
3
BATV Board
5
TCON Control MT Board
FIGURE 4-3. DIAGNOSTIC TABLE
NOTE: To provide information to customers regarding how to use their TV, features or FAQs, refer the customer to the imanual on their TV.
KDL-32EX425/32EX525/40EX525/46EX525 28
SECTION 4 - TROUBLESHOOTING
VIEWING THE SELF CHECK DIAGNOSTIC HISTORY
It is possible to bring up past occurrences of a failure for confirmation
on the Self Check diagnostic history screen. This feature is useful for
failures which are intermittent or when the customer is not sure what
is causing the television to shut down.
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander
within a second of each other:
3.
DISPLAY
Channel
5
Volume
-
POWER
* NOTE: This differs from accessing Service Adjustments Mode
(Volume +)
Total operation time by hour (MAX:65535)
Boot count (MAX:65535)
Panel operation time by hour (MAX:65535)
Total operation time by hour (MAX:65535)
Boot count (MAX:65535)
Panel operation time by hour (MAX:65535)
-------------- -------------- -------------- 01
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
002 MAIN_POWE
003 DC_ALERT
003 AUD_PROT
004 BALANCER
005 HFR_ERR
005 P_ID_ERR
12345-00333-06789
12345
-
00333
-
06789
-
-
-------------- -------------- -------------- 00
006 VLED
-------------- -------------- -------------- 00
005 TCON_ERR
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
006 BACKLITE
007 TEMP_ERR
010 EMITTER
-------------- -------------- -------------- 00
007 FAN_ERR
-------------- -------------- -------------- 00
012 IA
-------------- -------------- -------------- 00
SELF CHECK
StandBy LED Flash Count
Diagnostic Item
Diagnostic Item
Error Count
(00-99)
-------------- -------------- -------------- 00
-------------- -------------- -------------- 00
101 VPC_WDT
-------------- -------------- -------------- 00
102 MEPS_WDT
-------------- -------------- -------------- 00
103 HOST_WDT
-------------- -------------- -------------- 00
104 STBY_WDT
-------------- -------------- -------------- 00
000 RGB_SEN
000 RESERVED
000 RESERVED
FIGURE 4-4. SAMPLE SELF CHECK DIAGNOSIS PAGE
CLEARING THE SELF CHECK DIAGNOSTIC LIST
Since the diagnostic results displayed on the screen are not
automatically cleared, always check the self-diagnostic screen after
you have completed the repairs to be sure you have cleared the
result display to “0”.
1. To clear the Error history and Error count
press
8
0
.
RESETTING THE LCD PANEL OPERATING HOURS
The 3 sets of numbers displayed on the lower left corner of the screen
indicates the total accumulated operating hours of the television and
the operating hours of the LCD panel. Total operating hours is on the
left, boot count in the center and panel hours in the right group (The
center numbers are not used.)
1. To clear the LCD Panel operating hours of the LCD
Panel after replacing the panel, press
7
0
.
EXITING THE SELF CHECK DIAGNOSTIC SCREEN
1. To exit the Self Diagnostic screen, turn off the power to
the TV by pressing the
POWER
button on the remote
or the
POWER
button on the TV.
KDL-32EX425/32EX525/40EX525/46EX525 29
SECTION 5 - FLOW CHARTS AND DIAGRAMS
OVERVIEW
The following flow charts provide information to determine what repair parts to order based on the TV error.
DIAGNOSING THE ERROR
Use the Overall Flowchart to determine which flowchart to review to find a solution.
START
Does the Power Led
stay on when the
TV is switched on ?
Is the Standby Led
blinking?
Is the Picture and
Sound OK?
END
See
No Power
See
Standby LED Blinking
See
No Picture or No Sound
Is the network
connection OK?
See
Network Not Connecting
No
Yes
Yes
No
Yes
Do the buttons
on the TV & Remote
Commander work
properly?
See
TV/Remote Commander
Buttons Not Working
No
No
Yes
No
Yes
No
See
Skype Accessory
Not Working
No
Is the Skype
functioning OK?
Yes
FIGURE 5-1. OVERALL FLOWCHART
KDL-32EX425/32EX525/40EX525/46EX525 30
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO POWER
No Power
Check STBY 3.3V
at 10 pin of CN6001
on the B* Board
Harness
G* Board
Replace Harness
Between G* Board and
B* Board
B* Board
NG
OK
NG
OK
FIGURE 5-2. NO POWER
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