Wednesday, January 28, 2015

SHARP LC-32LE240M - LC-32LE340M SERVICE MODE AND POWER SUPPLY TROUBLE SHOOTING


SERVICE MODE AND AND TROUBLESHOOTING 

ADJUSTMENT PROCEDURE
 Entering and cancel the service process mode
1) While holding down the TV/VIDEO and Volume DOWN keys at the same time, plug in the AC cord to turn on the power. (“K” standing for inspection process mode is displayed on the upper left position of the screen.)
2) Press the Channel DOWN and Volume DOWN keys at the same time. (The adjustment process mode screen appears.)
3) To cancel it, turn off the power using the Power switch or remote control

Key operations
CH ( UP ) CH ( /DOWN) Changing channel (UP/DOWN)
VOL (+ / –) VOL (+ / –) Changing volume (UP/DOWN)
Cursor ( UP/DOWN ) —————— Turning a page (PREVIOUS/NEXT)
Cursor (LEFT /RIGHT ) —————— Changing a selected line setting (+10/-10)
TV/VIDEO button on remote controller TV/VIDEO button--------- Input source switching (toggle switching) (TV-DAV-1/SAV-1 
 AV-2  COMPONENT  HDMI  PC)
ENTER TO ENTER

Software upgrading
1) Plug off the LCD TV.
2) Insert the USB device to the USB terminal at the LCD TV.
(Make sure that the latest software is installed in the USB device).
3) Hold the LCD TV power key and plug on the LCD TV.
4) LCD TV is on and detecting the USB device.
5) A few seconds later, the software upgrading will start automatically.
6) Let the process running & entering verification.
7) Software is successfully installed when the following appears at the end of the process.

8) Plug off the LCD TV and plug ON again as usual.9) LCD TV is running with the latest software.
Public Mode
There are the following ways to quit the public mode setup screen.
# Turn off “PUBLIC MODE” in the adjustment process mode. (*) 
 This way alone is not for quitting the setup screen, but for quitting the mode by
itself.
# Turn off the power with the “POWER” key. ( * )
# Select “EXECUTE”.( * )

No power (front LED failure to light up) or no startup (front LED failure to turn from red to green)
Are the wire harnesses and other cables properly connected in
the set?


NO
Reconnect the wire harnesses and other cables properly in the
set.

YES


Is there the AC_CTRL and PNL_POWER signal input at pins
(126) and (127) of IC3301?


NO
Check the AC_CTRL signal line PNL_POWER signal line.

YES


Are the DC/DC converter outputs and the output voltages along
the control lines as specified?


NO
Check the DC/DC converters and the control lines. Replace
defective parts as required.
1) M+5.6V (IC9603)
2) D+1.26V (IC9605)
3) D+5V (IC9610)
4) T+5V (IC9612)
5) D+3.3V (IC9608)
6) D+1.8V (IC9609)
7) D+2.5V (IC9611)