Namco System 256 Run But No Sound No Image wtf

PCB problems and fixes
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chacal
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Namco System 256 Run But No Sound No Image wtf

Post by chacal »

Hello :) Hello :)
::
I have a problem with a motherboard namco system 256

I have no beep sound of the bios at startup. :wtf:

The I / O indicator lights flash the drive shows the playback activity of the game.

There is a switching that is done on the screen but it remains black. :(

The dvd player continues to play the games & the flashing lights always with nothing on the screen.

If I turn the volume knob to the highest I hear very low the music of the game.

What electronic parts has to be damaged? :cry:

VGA chip, Sound chip DEad ?

IDE RIBBON NEW & Jumper config 246+/256 OK

Thank you for your help
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leonardoliveira
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Re: Namco System 256 Run But No Sound No Image wtf

Post by leonardoliveira »

Video and audio circuits in the board will need 12V to operate properly. Board will power on with just 5V but you will have no image/sound.


Check if there's 12V reaching the insides of the board...
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chacal
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Re: Namco System 256 Run But No Sound No Image wtf

Post by chacal »

:D
But I can test which element on the motherboard to know :( ?
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leonardoliveira
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Re: Namco System 256 Run But No Sound No Image wtf

Post by leonardoliveira »

Without electronics knowledge all you can test/check is if there is voltage in the board.
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