Author Topic: Duo-R Audio error [Solved!]  (Read 1989 times)

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #15 on: February 16, 2017, 12:01:06 PM »
Yeah, this whole issue is pretty dang strange. It sure would seem like it would be a lens reading issue, just strange that it's the same across different CD-Rs and that god awful fart noise, so weird! :) I'm gonna write Steve, will report back if we ever figure it out.

thesteve

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Re: Duo-R Audio error
« Reply #16 on: February 16, 2017, 09:22:52 PM »
Bad address on pcm ram is possible, and has been seen a few times
Test with YS3
just let it loop and watch for scrambled frames
That game has no pcm, but uses the pcm ram as a buffer for some images

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #17 on: February 17, 2017, 04:19:13 AM »
Bad address on pcm ram is possible, and has been seen a few times
Test with YS3
just let it loop and watch for scrambled frames
That game has no pcm, but uses the pcm ram as a buffer for some images

Bingo. Got some hugely scrambled frames.

Is that chip something that can be replaced, or does this mean this duo is toast?

thesteve

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Re: Duo-R Audio error
« Reply #18 on: February 17, 2017, 05:35:40 AM »
Could be a bad ram chip, bad D91317GD or open Trace
In most cases it's the trace

ChuChu Flamingo

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Re: Duo-R Audio error
« Reply #19 on: February 17, 2017, 06:39:41 AM »
I like how it made the creaking noise even more grating on Rondo.

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #20 on: February 17, 2017, 08:08:32 AM »

Could be a bad ram chip, bad D91317GD or open Trace
In most cases it's the trace

Well, if it's an open trace I imagine it's another cheap fix like the last duo, but if it's an IC, then it's not fixable without a donor console, yeah?

thesteve

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Re: Duo-R Audio error
« Reply #21 on: February 17, 2017, 09:01:25 AM »
Depending on which chip, I have the ram

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #22 on: February 17, 2017, 12:12:55 PM »
Oh, nice. Okay, sounds like this one is heading over to you soon. :)

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #23 on: February 17, 2017, 08:16:50 PM »
Check this out: https://drive.google.com/file/d/0B-QiXcgEfSdxUkdCcTRfeXdvbkk/view?usp=sharing

Any chance this has anything to do with it? Right next to the hucard slot, some cracking. My suspicion is it's unrelated and probably not doing anything, but I don't know a lot. :D

thesteve

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Re: Duo-R Audio error
« Reply #24 on: February 18, 2017, 12:25:23 PM »
good chance of that being the issue

SignOfZeta

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Re: Duo-R Audio error
« Reply #25 on: February 18, 2017, 12:52:19 PM »
Dang, yeah, either way that isn't good. 

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #26 on: February 18, 2017, 12:53:48 PM »
Crack—mild or not—in the motherboard definitely isn't good, but wasn't sure how bad it was. It only appears right there, doesn't seem very deep, and I don't see anything on the other side... That being said, do you still think this is a good possibility to repair, or would you advise me just returning it (it was sold as "tested" and in working shape), as I'm sure I can get a full refund.

SignOfZeta

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Re: Duo-R Audio error
« Reply #27 on: February 18, 2017, 05:23:53 PM »
Personally, shipping things is more of a PITA than fixing this so I'd just keep it. If you aren't in that same situation then by all means return it. 

The way I look at old game systems is that they are guaranteed to break and as a community we are the the ones keeping all pie plates spinning. If you don't fix it the next guy will, and that's if the thing doesn't get scrapped.

that1crzywhtguy

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Re: Duo-R Audio error
« Reply #28 on: February 18, 2017, 07:14:04 PM »
If I knew how to fix it, I would! :)

Unfortunately, I'm pretty damn good at soldering, and know basic multimeter stuff, but that's about where my skills end. I'm not terribly concerned about the pain of shipping it back to them, but I either ship it to steve, or back to them, so either way I'm shipping it somewhere.

I did get a great deal on the console, but I bought it to region mod and sell. Where I was weighing things is trying to factor in repair costs in my profit margin. As I said, I got it for very cheap, and they did offer me a partial refund for the issue...But, now that I see a crack in the board, I'm not convinced this will be cheap to repair (I hope it still might). What I don't want, is to end up with a console that's unrepairable, and no way to get my money back.

Unless Steve thinks this is still likely to be repaired fairly inexpensively (under $65ish bucks), I'm just gonna send it back to them.

Keith Courage

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Re: Duo-R Audio error
« Reply #29 on: February 18, 2017, 11:36:16 PM »
If nothing under the board looks cracked trace wise then the upper part there would be very easy to repair. Just scrape off some of the green coating with a small flat head screw driver or sand paper, then solder bridge across the cracks. Maybe post a picture here of what it looks like on the under side of the board as well.