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TG/PCE Repair/Mod Discussion / Re: PC engine burning smell + green/white/ blue screen
« Last post by Tengugurl on Today at 07:27:44 AM »Hi there!
Leaving it plugged in for a matter of seconds.
No chip is getting hot. (Felt the RAM, Felt the GPU/CPU) and nothing.
Checked the power rail getting a solid 5v off the 7805 and everything down stream is receiving 5v+ correct.
The PSU is a 9v unregulated NEC PSU that came with the console. It's pushing out 13v center negative but the step down is taking place correctly downstream.
It smells awfully and it is frying Hucards now
I bought a backup PC Engine and sure enough I put a Hucard into the damaged one it fries it and it gives me a white screen on the Good PC Engine. (not going to try that in fear of it spreading to my good console lol)
I've seen a few videos online and I am really thinking I need to logic probe this bad boy and replace a component.
Idk.. caps look good but it's not posting so I am thinking graphics arent being sent to the HUc6260 idk..
Sucks!
Leaving it plugged in for a matter of seconds.
No chip is getting hot. (Felt the RAM, Felt the GPU/CPU) and nothing.
Checked the power rail getting a solid 5v off the 7805 and everything down stream is receiving 5v+ correct.
The PSU is a 9v unregulated NEC PSU that came with the console. It's pushing out 13v center negative but the step down is taking place correctly downstream.
It smells awfully and it is frying Hucards now
I bought a backup PC Engine and sure enough I put a Hucard into the damaged one it fries it and it gives me a white screen on the Good PC Engine. (not going to try that in fear of it spreading to my good console lol)
I've seen a few videos online and I am really thinking I need to logic probe this bad boy and replace a component.
Idk.. caps look good but it's not posting so I am thinking graphics arent being sent to the HUc6260 idk..
Sucks!