9. Troubleshooting
Treat problems according to the information given in the table below� If
problems still persist, call your dealer for service�
The problems described below are not always caused by malfunctions�
Check the MultiBoard again before having the MultiBoard serviced�
Problem Possible solution
Remote control
out of order
•Check whether there is an object between remote control and
MultiBoard receiver�
•Check whether the batteries polarities in remote control are right�
•Check whether the batteries are drained�
The unit
shuts down
automatically
•Sleeping mode setting�
•Check whether there is a sudden power failure�
•Check for signal to system and control�
PC mode
Out of signal
•Check display setting�
•Check the resolution�
•Adjust the Hs & Vs (synchronization) in the menu�
Background
streaking
•Choose auto adjustment�
•Adjust clock and phase�
False color
•Check the VGA�
•Setup the chroma, brightness and contrast�
Unsupport
format
•Choose auto adjustment�
•Setup the clock and phase�
Touch Function
Touch function
void
•Check driver is installed correctly�
•Reinstall the driver�
Not allow to
touch
•Check the settings and set it again�
•Reinstall the driver�
•Check whether the touch pen is working properly�
Video not working properly
No picture/No
sound
•Check POWER status�
•Check the signal cable�
•Check the internal PC�
Picture trembles
•Check the signal cable�
•Check if there are other electronics interrupting the signal�
9
PMB554H847,707,657_QSG_ EN_no TV.indd 32 2013/10/15 14:29:07
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