XBR-55X900B - Sony TV Service Manual (repair manual). Page 21

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XBR-55X900B 17
SECTION 3 - REPAIR INFORMATION
12.  Clear the 
Self Check screen.
a.  Press 
POWER
 to exit 
Service Mode.
b.  Press the following buttons on the 
Remote Commander within 
 
1 second of each other:
       
DISPLAY
 
 
Channel
 
5
 
 
Volume
 
-
 
Power 
I/0
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
Error Count
c.  To clear the error history and error count press 
8
 
 
0
.
d.  Press 
POWER
 to exit the 
Self Check screen.
13.  Cycle AC Power (Unplug and plug AC Cord from the outlet).
REPLACING THE K BOARD
1.  Locate and disconnect connectors from K Board, then remove all screws 
and lift to detach.
K Board
K Board
2.  Install the new K Board, screws and connectors.
REPLACING THE POWER SUPPLY BOARD
1.  Remove the Stopper, PSU screw and lift to detach from 
Power Supply Board.
2.  Disconnect connectors then remove all screws and lift as shown 
the Power Supply Board to detach.
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