Sony KDL-55HX827 Service Manual ▷ View online
KDL-55HX827 31
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
Probable Location
MAIN_POWER
Main Power Error
2
G6 Board
DC_ALERT
DC Regulator/Audio Error
AUD_PROT
Audio Error Detection
BALANCER
Balancer Error
4
LCD Panel
TCON ERR
TCON Error
P_ID_ERR
Panel ID NVM Error
BACKLITE
Backlight Error
6
G7 Board
TEMP_ERR
Temperature Error
7
Ventilation
BATL Board
103 HOST_WDT
Watch Dog Timer Notification
8
Service Bulletin (See Appendix Section)
Software Update
Emitter Error
10
HEM2 Board
3
BATL Board
5
TCON Control MT Board
FIGURE 4-3. DIAGNOSTIC TABLE
KDL-55HX827 32
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:
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 4-3. 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 TCON tconDiagnostic screen, turn off
the power to the TV by pressing the
POWER
button on
the remote or the
POWER
button on the TV.
KDL-55HX827 33
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.
KDL-55HX827 34
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO POWER
REG12V
AC_OFF_DET
GND
BL_ERR
1
2
4
7
2
4
7
POWER_ON
TCON_ON
BL_ERR
AC_OFF_DET
1
6
7
8
6
7
8
GND
AU_GND
STBY3.3V
AU_12V
9
10
11, 13
12, 14
12, 14
GND
TCON_12V
REG_12V
REG_12V
15
16, 18
20, 22
24, 26
20, 22
24, 26
AC IN (N)
AC IN (H)
AC IN (N)
AC OUT (N)
AC IN (H)
AC OUT (H)
1
2
2
1
3
5
7
3
5
7
CN6102
CN6151
TCON_12V
AUDIO_GND
REG_12V
REG_12V_GND
1
2, 3
4, 5
6, 7
4, 5
6, 7
AUDIO_12V
STBY3.3V
8, 9
10
GND
POWER_ON
TCON_ON
BL_ERR
1
3
7
8
3
7
8
AC_OFF_DET
9
CN6002
CN6001
ENERGY
SAVING
SWITCH
BATL
G6
CN6003
CN6002
PFC_OUT
2
PFC_GND
1
PRI_GND
2
PRI_VCC
1
1
2
4
7
2
4
7
CN6501
CN6502
CN6701
2
1
2
1
CN6600
CN6601
VLED_VCC
GL_CTRL
VLED_GND
LD_ERR
1~4
6~10
11
13
13
LED_ON
14
G7
TO LD
BOARD
FIGURE 5-1. POWER SUPPLY DIAGRAM
Click on the first or last page to see other KDL-55HX827 service manuals if exist.