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NEC PC-Engine/SuperGrafx => PC Engine/SuperGrafx Discussion => Topic started by: Everblue on July 04, 2013, 05:53:40 PM

Title: White PC Engine: low volume problem
Post by: Everblue on July 04, 2013, 05:53:40 PM

I just bought a brand new old stock white PC Engine along with an AV Adapter for it as sold here:

http://www.otakus-store.net/en/nec-pc-engine/155-nec-rgb-av-box-for-nec-pc-engine-console.html

It works great but audio volume is around 40% too low, no distortion or anything....

Anyone knows if this is a case of the capacitors needing replacement, or audio from a white PCE's expansion port is too low? I have confirmed with the maker of the AV adapter that it doesn't come with an audio amp.

Any help is appreciated :)

Thanks!

Title: Re: White PC Engine: low volume problem
Post by: blueraven on July 04, 2013, 05:59:57 PM

My guess is that if your audio jack isn't dusty, and your AV cable isn't bad (which you may want to replace before trying the next step), you may have the capacitor problem that many of the units are affected with. Here is the tutorial on how to fix it, although the duo in question is not a PC Engine:

http://www.pcenginefx.com/forums/index.php?topic=960.0

Please check through this thread for the differences between the Duo and the PCE that you have.

Also, check the capacitor replacement chart.

Title: Re: White PC Engine: low volume problem
Post by: Everblue on July 04, 2013, 06:05:30 PM

Hi thanks....  Although there is no audio jack on a white pc engine. It only comes with an RF connector which I am not using.

Looking at the link it seems that the audio problems are related to CD-rom audio, but mine doesn't have a cdr-rom unit.

Title: Re: White PC Engine: low volume problem
Post by: blueraven on July 04, 2013, 06:14:10 PM

Sorry, I initially misread this post. It is a white PCE. Got it.

If the RF cable isn't bad, which I'm guessing its not, the two audio caps that control the sound are probably leaking or on their way out.
 
There are a few people here on this forum that can help you with the repair if you can't replace the capacitors yourself. I'm not taking repair work at the moment, but would suggest contacting chop5, BlueBMW or thesteve. I think Keith Courage also does repairs.

Title: Re: White PC Engine: low volume problem
Post by: Everblue on July 04, 2013, 06:17:26 PM

No problem at all. I was thinking the issue is bad caps, but then I found this:

 http://www.pcenginefx.com/forums/index.php?topic=13226.0;imode

Now I am really confused.