SAMSUNG LA32C450 - LA26C450 - LA22C450 - HOW TO ENTER SERVICE MODE - TROUBLESHOOTING

LA22C450E1 - LA26C450E1 - LA32C450E1 _SAMSUNG LCD TV - Service Mode_Troubleshooting

HOW TO ENTER SERVICE MODE 

> Turn the power off and set to stand-by mode
> Press the remote buttons in this order to turn the set on.
> The set turns on and enters service mode. This may take approximately 20 seconds.
> Press the Power button to exit and store data in memory.  - If you fail to enter service mode, repeat steps 1 and 2 above.

Initial SERVICE MODE DISPLAY State

How to enter the hidden factory mode.
a. into the factory mode
b. move the tap to Advanced
c. key input : 0 + 0 + 0 + 0 ** hidden menu : Advanced.

Buttons operations within Service Mode

Direction Keys UP/DN - Item Selection by Moving the Cursor

Direction Keys L/R - Data Increase / Decrease for the Selected Item

Source - Cycles through the active input source that are connected to the unit.

FAULTS & CHECKS

No Power (SX1)

The LEDs on the front panel do not work when connecting the power cord.   The SMPS relay does not work when connecting the power cord.   The units appear to be dead.

The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
* Check the internal cable connection status inside the unit.
* Check the fuses of each part.
* Check the output voltage of SMPS.
* Replace the Main Board.

Audio is normal but no picture is displayed on the screen.

* Check the PC source.  Check the IC1102(SX1).

* Check the HDMI source.  Check the IC1102(SX1) , Check the HDMI switch.

* Check the Tuner CVBS source
* Check the M-star
* Check the Video Source

Video is normal but there is no sound.

* When the speaker connectors are disconnected or damaged.
* When the sound processing part of the Main Board is not functioning.
* Speaker defect.

No Power (X4)

The LEDs on the front panel do not work when connecting the power cord.  The SMPS relay does not work when connecting the power cord.  The units appear to be dead.

The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
* In this case, check the following:
* Check the internal cable connection status inside the unit.
* Check the fuses of each part.
* Check the output voltage of SMPS.
* Replace the Main Board.

No Video_Analog PC signal (X4)

Audio is normal but no picture is displayed on the screen.

* Check the PC source
* Check the Arsenal, Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

No video_HDMI1, 2, 3, 4 - Digital signal (X4)

Check the HDMI source.
Check the HDMI switch, Check the Chelsea.

No Video_Tuner - CVBS (X4)

Check the Tuner CVBS source.
Check the Tuner, Check the Chelsea.

No Video_Video CVBS (X4)

Audio is normal but no picture is displayed on the screen.

* Check the Video CVBS source
* Check the Chelsea.
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

No Video_Component (X4)

Check the Component source
Check the Chelsea.

No Sound (X4)

Video is normal / when the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect.