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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: ltpitt on April 25, 2017, 09:46:01 PM

Title: [Pc Engine GT] [Audio] Is it possible to improve it?
Post by: ltpitt on April 25, 2017, 09:46:01 PM

Hi all!

My beloved Pc Engine GT craves more fiddling  :-({|=

I love its audio and I was thinking if it is possible to make it more crystal clear.

I hear a constant hum noise, can it be improved?

I've read about ferrites, seems like they are a very cheap way to filter out high frequency noise in your circuit.

My electronic abilities are very limited, can I ask your help / idea / suggestion in how to implement this?

Should I solder ferrite to the audio jack?

Maybe ferrites are a wrong idea, do you suggest anything else?

Thanks :)

Title: Re: [Pc Engine GT] [Audio] Is it possible to improve it?
Post by: Keith Courage on April 27, 2017, 04:30:01 PM

The hum noise can sometime be caused by using a junk power supply or low powered batteries. I've never really tried anything besides changing caps to improve audio quality on one.

Title: Re: [Pc Engine GT] [Audio] Is it possible to improve it?
Post by: Winniez on April 28, 2017, 10:53:01 AM

If its more noticeable when bright colours are shown it might be bad shielding in the cable aswell.

Edit:Sorry I posted hastily, didn't notice you were talking about the GT, just ignore my post.