Looking for the schematics for this board - its an offshoot of some Chinese board but branded for Coast to Coast entertainment
I think I narrowed down the issue I am having with the claw to a op comparator that drives a photo transistor, this seems to provide the ground used with a DPDT relay
I am in the process of trying to diagram some of the board, if no one has the schematic i'll probably post what I have traced so far
pun84
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Last Activity: 11-10-2022, 10:56 PM
Joined: 04-11-2011
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Re: Arcade games and bad caps...
About those ENHANCE psu's in the Megatouch EVO's
You've gotta be careful with them because, even when recapped and the fan replaced.. i've had the TL494 PWM chip fail on me, or parts associated with the circuit.. and the power supply starts putting out about 10+VDC on the +5 line.. and around 30V on the +12 output...
Fried a couple hard drives and touchscreens... not sure why the overcurrent protection circuit wouldn't kick in.. -
Re: Brown/whitish looking stuff appearing around my work.
Yeah, those fatter/wider traces require a lot more heat..Leave a comment:
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