KDL-32BX359 - Sony TV Service Manual (repair manual). Page 15

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KDL-32BX359 7
SECTION 2 - TROUBLESHOOTING
VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the error that 
occurred. This is helpful in confirming past occurrences of an error and for 
determining if an error is intermittent when the customer is not sure what 
is causing the television to shut down. If the screen displays a “0”, no error 
has occurred.
You must got into 
Service Mode to access the Self Check menu.
1.  TV must be in Standby mode.
2.  Press the following buttons on the 
Remote Commander within a 
second of each other: 
DISPLAY  
 Channel  5  
 Volume  +  
  POWER
3.  To access the Self diagnosis history page, press   until 
Self 
diagnosis history is highlighted.
Sound Adjustment
>>
Wide Band Tuning
>>
Range Scan…
>>
Self diagnosis history
>>
Status Information…
>>
LVDS Spectrum(%0)
<[
50
]>
Panel Selection
<[
T315XW04_V3
]>
SERIAL NUMBER EDIT
8000001
MODEL NAME EDIT
KDL-32BX359
[</>]Set [Menu] Exit 
Service Mode
4.  Then press   to view 
Self Check screen.
Back
<<
002 MAIN_ POWER
001
003 AUDIO_PROT
000
003 DC_ALERT1
000
0
0
0
R
E
C
N
A
L
A
B
4
0
0
0
0
0
R
R
E
_
N
O
C
T
5
0
0
005 PANEL_POWE
000
0
0
0
E
T
I
L
K
C
A
B
6
0
0
0
0
0
R
R
E
_
P
M
E
T
7
0
0
00150
00075 
00030
[Menu] Exit
SELF CHECK
Indicates
an error 
has occurred
Indicates
no error 
has occurred
SAMPLE SELF CHECK DIAGNOSIS PAGE
2X Blink - Main Power Error
A loss of REG12V from the power supply triggers this protect event. The 
usual cause is a failure of the main switching supply. In some instances, 
excessive loading on the secondary supply lines can cause the switching 
regulator to stop or fail again, if a replacement board is installed.
3X Blink- DC Regulator/Audio Error
The REG 5V and D3.3V source originating on the Main Board is monitored 
for  low-voltage  conditions  by  the  CPU. A  failure  causing  a  3X  shutdown 
requires replacing the Main Board.
4X Blink – Balancer Error
NOT USED IN THIS MODEL SERIES.
5X Blink - TCON Error/Panel Error
The 5X blink protection mode indicates a communications error with the 
timing control circuits (TCON Board) has occurred. If the TCON Board is 
available for replacement, replace it, if not, replace the LCD Panel Assembly. 
In rare cases a loose or defective LVDS Cable could also be the cause.
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