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PC Engine issue

Started by blackevilweredragon, September 05, 2007, 06:25:31 PM

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blackevilweredragon

After I finally found the cartridge to go with that trash-found PC Engine to use the CD-ROM, I got snatcher..

Everything works great, but I noticed something.  Whenever the CD-ROM drive loads (laser moving), the picture has horizontal bands on the screen...

I checked the ground, they seem fine..

l_oliveira

Bad capacitors either on the power supply or the voltage regulators (PC-Engine uses linear regulators like 7805 and 7809).
Probably they ran dry due to aging. Replacing them will fix the system.