Sony KDL-55W900A Service Manual ▷ View online
KDL-55W900A 2
BOARD LAYOUT
TCON
POWER SUPPLY
BOARD (G1B)
MAIN BOARD
(BA2S)
SWITCH
UNIT
SMART CORE
BLOCK
HSC BOARD
WLAN
MODULE
BLUETOOTH
MODULE
HIR BOARD
SECTION 1 - SPECIFICATIONS AND LAYOUTS
KDL-55W900A
SMART CORE BLOCK
KDL-55W900A 3
SECTION 1 - SPECIFICATIONS AND LAYOUTS
WIRE DRESSING
KDL-55W900A
SMART CORE BLOCK
KDL-55W900A 4
DIAGNOSING THE ERROR
Before servicing the Television:
1. Verify the TV has the symptom the customer indicated.
2. Check to see if the latest Software is installed.
a. If not, install the latest version.
3. Determine the replacement part required.
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.
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. Press
POWER
to turn on the TV and then turn it off again.
2. Press the following buttons on the
Remote Commander within 1
second of each other:
DISPLAY
Channel
5
Volume
-
POWER
NOTE:
This differs from accessing Service Adjustments Mode (Volume +).
SECTION 2 - TROUBLESHOOTING
Self Diagnosis
Supported model
SELF CHECK
000 RESERVED
--------------------- --------------------- --------------------- 00
000 RESERVED
--------------------- --------------------- --------------------- 00
002 MAIN_POWE --------------------- --------------------- --------------------- 00
003 DC_ALERT
--------------------- --------------------- --------------------- 00
003 AUD_PROT
--------------------- --------------------- --------------------- 00
003 HDMI_EQ
--------------------- --------------------- --------------------- 00
003 TU_DEMOD
--------------------- --------------------- --------------------- 00
004 VLED
--------------------- --------------------- --------------------- 00
004 LD_ERR
--------------------- --------------------- --------------------- 00
005 HFR_ERR
--------------------- --------------------- --------------------- 00
005 TCON_ERR
120123132522 120123113645 --------------------- 02
005 P_ID-ERR
--------------------- --------------------- --------------------- 00
006 BACKLITE
--------------------- --------------------- --------------------- 00
007 TEMP_ERR
--------------------- --------------------- --------------------- 00
007 FAN_ERR
--------------------- --------------------- --------------------- 00
010 EMITTER
--------------------- --------------------- --------------------- 00
101 VPC_WDT
--------------------- --------------------- --------------------- 00
102 MEPS_WDT
--------------------- --------------------- --------------------- 00
103 HOST_WDT
--------------------- --------------------- --------------------- 00
104 STBY_WDT
--------------------- --------------------- --------------------- 00
00345 000333 06789
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)
StandBy LED
Blink Count
Diagnosis
Item
Date and Time Display*
Error Count
(00-99)
*Format of Error History = YYMMDDhhmmss example 120123132522= Jan 23, 2012 13:25:22 (1:25:22PM)
NOTE: date and time must be set for this to work
SAMPLE SELF CHECK DIAGNOSIS PAGE
KDL-55W900A 5
SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
1. Confirm the symptom from the customer.
Red Dot: (Primary) Most likely defective part.
2. Select that symptom from the chart.
Blue Triangle: (Secondary) Possible defective part.
3. Bring the primary component listed for that symptom.
5. Chart Color Code.
LAN
Power
Audio
2X 3X 4X 5X 6X
7X
8X
No
WIFI
Dead set
No
Video
Whole
Screen
Distortion
Isolated
Area
Distortion
No Audio
MAIN BOARD
*
▲ ▲
▲
▲
POWER SUPPLY
LCD Panel
TCON
▲
▲
SERVICE BULLETIN
▲
SOFWARE UPDATE
WLAN
Video
Protection Modes
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board
* Immediate Shutdown After Power ON & 7X
*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN
REFERENCE LIBRARY DATABASE FOR CORRECT
REPLACEMENT PARTS BASED ON SERIAL NUMBER.
REFERENCE LIBRARY DATABASE FOR CORRECT
REPLACEMENT PARTS BASED ON SERIAL NUMBER.
To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Servicer Portal at
http://www.sony.com/asp
.
Click on the first or last page to see other KDL-55W900A service manuals if exist.