exxos's Atari, Amiga & retro forum

Glad to see it works great again !

HigashiJun wrote: 19 Mar 2026 22:26 Glad to see it works great again !

Me too, I was quite sad to see the corrupted screen, especially after the cap replacements. I know for standard caps in the lower cost ranges that a -20% low reading is not uncommon and often acceptable, but here clearly it needs something much tighter tolerance wise in the video circuit, and to be fair it was 23% off.

Yesterday, I saw on a local website related to PC Engine repairs that almost all video failures are due to bad capacitors.

HigashiJun wrote: 20 Mar 2026 09:43 Yesterday, I saw on a local website related to PC Engine repairs that almost all video failures are due to bad capacitors.

I had just registered on a PC Engine site to get help, but then I replaced the cap and all was well in the world again...

I also asked Co-Pilot and its answer was that 90-95% of video failures are down to bad caps, so that pans out.

I have been testing the PC Engine Duo this morning and I have to say that since I put in a better cap, the image is so much improved, so getting properly specced decent caps for the video circuit seems to be a necessity.

Good to hear that.

:thumbup:

HigashiJun wrote: 20 Mar 2026 11:50 Good to hear that.

:thumbup:

It's one of my favourite consoles, I was honestly a bit sad when the screen was playing up, so very pleased its sorted.

I've seen you can get an RGB or hdmi adapter for them but mine seems fine from composite.

PhilC wrote: 20 Mar 2026 13:22 I've seen you can get an RGB or hdmi adapter for them but mine seems fine from composite.

Yeah, the video IC does seem to push out RGB signals but they don't get to the video socket, that only ever sees composite, however is is one of the cleanest composite signals I've seen and looks great, bright and clourful.