KDL-40HX750, KDL-46HX750, KDL-46HX751, KDL-55HX750, KDL-55HX751 - Sony TV Service Manual (repair manual). Page 52

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KDL-40HX750/46HX750/46HX751/55HX750/55HX751 43
SECTION 5 - UPDATES AND ADJUSTMENTS
RESETTING THE TV TO FACTORY CONDITION USING 
SERVICE MODE
1.  Take the TV out of deep Standby mode by pressing
POWER
to 
turn on the TV.
2.  Press 
POWER
to turn the TV back off.
3.  Press the following buttons on the Remote Commander within a
second of each other:
 
DISPLAY
 
Channel
5
 
 Volume 
+
 
 
POWER
4.  If necessary, press
JUMP
 or 
OPTIONS
to go to DIGITAL menu.
5.  Press the following buttons on the Remote Commander within a
second of each other:
 
    MUTING
  0
.
SERVICE changes to green RST.
RST executes the command and displays EXE.
EXE-RST displays green, then red indicating the TV is writing the
data.
6.  When the process is complete the green SERVICE text displays
and the LED display as shown below:
 
 
TIMER   
 Standby 
   POWER
7.  Cycle AC Power  
(Unplug and plug AC Cord from the AC Outlet).
The set restarts and displays the Initial Setup screen.  
This may take several minutes.
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