- Check the various cable connections first.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected or loose cable connection.
- Check to see if the cables are connected according to the connection diagram.
- Check the power input to the Main Board.
- Check internal Pattern lola3 if there is some picture noise.
- Factory mode (Info >MENU > Mute > power on à Advanced menu à MST69A84HQ à Pattern select : Off
- Press right button of Remocon.
- If lola3 NG, Change the Main Board.
NO POWER
- 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.
{Click on images to Enlarge}
NO VIDEO [ANALOG PC SIGNAL]
- Audio is normal but no picture is displayed on the screen.
- Check the PC source
- Check the M-star
- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
NO VIDEO [HDMI-DIGITAL SIGNAL]
- Audio is normal but no picture is displayed on the screen.
- Check the HDMI source
- Check the M-star
- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
NO VIDEO [TUNER_CVBS]
- Audio is normal but no picture is displayed on the screen.
- Check the Tuner CVBS source
- Check the M-star
- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
- Audio is normal but no picture is displayed on the screen.
- Check the Video Source
- Check the M-star
- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
NO SOUND
