Question about InFocus Office Equipment & Supplies
Possible that the noise you seen( Video noise) is ccoming from the DVD player.
Most often the connecctingg RCA cabbles can be have poor shield orr damaged wires. So connect them tight with the ground tight. If the noise appears reverse the plug of the DVD after switching off.
If the fault wont clear, try to use another device on this port to confirm( another DVD player will be good.)
If the fault disappears then the noise is coming from the power supply of your player --possible failure of filter capacitorrs in the power supply,producing transcient voltage.
However if the other DVD also gives this noise, try to ground the projector, if there is no result then it is possible that the Video input socket has a ground failure in the board.( hope there is no issue with the PC)
If there is fault with all connections to the projector then it is possible that the board are not grounded or there is failure in power filtering. Check on power supply.
Hope these tips help you to make the tests.
Posted on Aug 29, 2010
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Posted on Jan 02, 2017
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