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Electronics => Repair => Topic started by: ghorizo on February 10, 2020, 04:11:03 pm

Title: Help with Benq MP720p repair.
Post by: ghorizo on February 10, 2020, 04:11:03 pm

Hello! Taking another stab at trying to fix this projector on which I already replaced a couple of capacitors a while back.
Now the unit powers on but will only display black and white pixelated "static". It changes patterns a bit every reboot.

Anyone have any idea what could be the cause of the problem?

Title: Re: Help with Benq MP720p repair.
Post by: Haenk on February 10, 2020, 05:15:54 pm

Looks like you need to obtain and install a new mirror chip (DLP chip). This one is gone forever, probably due to overheating.
Disassemble until you uncover the chip - the failure should be visible.
Is the repair worth it? Not sure about that...

Title: Re: Help with Benq MP720p repair.
Post by: ghorizo on February 10, 2020, 06:15:33 pm

Sorry to question you but aren't DLP chip failures static? The pattern here is changing more or less every reboot.
The OSD menu is not working and neither any settings.