Sony Bravia KDL-46BX450, Руководство по обучению обслуживанию

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KDL-40BX450/40BX451/46BX450/46BX451 7
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
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) <[ 20 ]>
DPMS <[ Off ]>
Low of HPD <[ 5 ]>
TVD_MCDONE_CNT <[ 20 ]>
Demo Special >>
Bypass AVI Info Detect <[ On ]>
Panel Selection <[ 13_FHD_SLCD_40 ]>
UART Selection No Log
SERIAL NUMBER EDIT
MODEL NAME EDIT
[</>]Set [Home] Exit
Service Mode
4. Then press to view the 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
Indicates
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
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.