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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: kisaku on October 24, 2015, 11:58:51 PM

Title: pc engine DUO reads ONLY music d
Post by: kisaku on October 24, 2015, 11:58:51 PM
Hello!
My pc engine DUO is reading very well only music cd..when i insert a game it starts to spin but LOAD ERROR. Music cd audio is very clean... Caps problem?
Thanks.
Title: Re: pc engine DUO reads ONLY music d
Post by: MNKyDeth on October 25, 2015, 01:25:48 AM
If the "TurboDuo" or "PC Engine Duo" has not had it's caps replaced there is a good chance that is at least part of the problem if not all of it. From what I have seen even after replacing caps the cd-rom usually will still need some adjustment even if minor.

Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on October 25, 2015, 03:07:59 AM
If the "TurboDuo" or "PC Engine Duo" has not had it's caps replaced there is a good chance that is at least part of the problem if not all of it. From what I have seen even after replacing caps the cd-rom usually will still need some adjustment even if minor.



I tried to adjust pots but nothing so i think it can be caps problem.
What caps should i change?
Title: Re: pc engine DUO reads ONLY music d
Post by: Bernie on October 25, 2015, 03:09:04 AM
Change all of them.  Seriously, if you are gonna open it and change one cap, may as well change them all, especially on these systems.  Any of the tech guys here will tell ya that.  :) 
Title: Re: pc engine DUO reads ONLY music d
Post by: GohanX on October 25, 2015, 04:35:36 AM
Most of the tech guys would agree that if the caps have never been changed do all of them anyway.
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on October 25, 2015, 07:14:52 AM
But... if i change all caps (my repair man wants 30 euro) and then doesn't work? :)
Title: Re: pc engine DUO reads ONLY music d
Post by: schweaty on October 25, 2015, 08:25:03 AM
30 euro is a good price for a cap job.  U should get it done no matter what.  It will probably need pot adjustment after the recap
Title: Re: pc engine DUO reads ONLY music d
Post by: wilykat on October 26, 2015, 04:01:47 PM
Yeah go for that recap job. Also if the person is experienced in Duo repair, he can probably adjust the pots to get it working right for you.
Title: Re: pc engine DUO reads ONLY music d
Post by: Keith Courage on October 26, 2015, 05:11:47 PM
if audio cds play absolutely perfectly but game discs will not then there is most likely another issue than the caps.

How well do the music discs read? any audio skips?

are you testing with real game discs or cdrs?

Yes, caps are a good idea, but if music CDs play absolutely fine but games will not, then there is a different problem.
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on October 28, 2015, 08:55:02 PM
if audio cds play absolutely perfectly but game discs will not then there is most likely another issue than the caps.

How well do the music discs read? any audio skips?

are you testing with real game discs or cdrs?

Yes, caps are a good idea, but if music CDs play absolutely fine but games will not, then there is a different problem.

yes music cd plays perfectly.
I tested it with original pce cd games.
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on November 03, 2015, 04:11:54 AM
maybe motherboard problem?
Title: Re: pc engine DUO reads ONLY music d
Post by: thesteve on November 03, 2015, 04:51:55 AM
i have rarely had an issue with the traces cause it to incorrectly select the tracks
it would play fine in order, but directly entering a track number would play the wrong track

i also had 1 that the cd level and time displayed was glitchy (also traces)

in both cases the cd music played fine, but games didnt load
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on November 04, 2015, 05:45:40 AM
i have rarely had an issue with the traces cause it to incorrectly select the tracks
it would play fine in order, but directly entering a track number would play the wrong track

i also had 1 that the cd level and time displayed was glitchy (also traces)

in both cases the cd music played fine, but games didnt load

So, changing caps will be the right thing to do? ;)
Title: Re: pc engine DUO reads ONLY music d
Post by: thesteve on November 04, 2015, 06:23:30 AM
Likely not yet
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on November 04, 2015, 09:02:05 AM
Likely not yet

What should i do?
Trash it? :)
Title: Re: pc engine DUO reads ONLY music d
Post by: thesteve on November 04, 2015, 10:22:59 AM
no, its fixable either way
it does need the caps done, just i expect it to still have the CD issue after recap
so i would normally fix it first, but either way
Title: Re: pc engine DUO reads ONLY music d
Post by: kisaku on November 04, 2015, 07:00:55 PM
changing cd drive?
Title: Re: pc engine DUO reads ONLY music d
Post by: thesteve on November 05, 2015, 02:34:17 AM
If it's reading audio the drive works
Just has a problem in the data path