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KDL-40EX645/46EX641/46EX645/50EX645/55EX645 8
SECTION 2 - TROUBLESHOOTING
VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the number of
times the error 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.
1. TV must be in Standby mode.
2. Press the following buttons on the
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)
<[
25
]>
DPMS
<[
Off
]>
Low of HPD
<[
5
]>
TVD_MCDONE_CNT
<[
20
]>
Demo Special
>>
Bypass AVI Info Detect
<[
On
]>
Panel Selection
<[
V500HK1-LS5
]>
UART Selection
No Log
SERIAL NUMBER EDIT
5000004
MODEL NAME EDIT
KDL-50EX65
[</>]Set [Home] Exit
Service Mode
4. Then press to view
Self Check screen.
Back
<<
002
MAIN_ POWER
001
003
AUDIO_PROT
000
003
DC_ALERT1
000
004
BALANCER
000
005
TCON_ERR
000
005
PANEL_POWE
000
006
BACKLITE
000
007
TEMP_ERR
000
00150
00075
00007
[Menu] Exit
SELF CHECK
Indicates
no error
has
occurred
no error
has
occurred
Indicates
an error
has
occurred
an 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
The 4X error code is only used on models incorporating local dimming LED
4X Blink – Balancer Error
The 4X error code is only used on models incorporating local dimming LED
backlighting. If a failure occurs on the LD Board or one of the LED’s fails in
the panel the TV will shut down and display this diagnostic code.
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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