Re: Bought these (retro) hardware today

Posted on Today, 09:12

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

to3cutter wrote on Today, 09:04: I went on recycling facility to throw away some old pc cases...came home with my new baby...🥰 Curious to know why you throw them away? They cost a fortune on eBay.

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Re: Smoke coming from PAS16

Posted on Today, 04:00

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Thermalwrong wrote on Yesterday, 23:49: Congratulations 😀 It sounds great from that video, both FM and digital audio! I thought for sure that thing was toast since the other popped PAS16 I saw had the main chip burned as well. Yeah I thought she was gone. Especially after the bang. Was shocked when …

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Re: Smoke coming from PAS16

Posted on Today, 03:59

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Cool. Glad you got it working. I have 3 of these cards myself, so far no issues with them. Fingers crossed though as they have have lots of tanties on them as you've noticed. :) I think you should be fine. The problem with this card is that it had never been used. It was practically new old stock. …

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Re: What retro activity did you get up to today?

Posted on Yesterday, 06:56

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Never saw a cr2032 leak. Like, ever. Aside from looking ugly that seems like a reasonable mod to me.. Very very old ones can. They can become nasty https://www.vogons.org/viewtopic.php?t=36424&start=280. I got rid of them on all my Roland devices. One had started leaking but hadn't done any damage …

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Re: What retro activity did you get up to today?

Posted on Yesterday, 05:09

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ubiq wrote on 2024-05-30, 18:20: I desoldered the mosfet, and jammed the necroware VRM output voltage down a couple specific jumper headers. It works! 👍 Very impressive. Well done!

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Re: Smoke coming from PAS16

Posted on Yesterday, 04:53

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

That's actually a good idea, because if that fails, you can be quite sure there is another fault on the card. It seems the CS4216 is in fact only used for recording and playback of digitized sound, but it is not used as mixer. The FM music and the digital sound produced by the CS4216 will be mixed …

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Re: What retro activity did you get up to today?

Posted on Yesterday, 04:37

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My Yamaha MU80 arrived today. Not happy with the eBay seller. They cut the metal leg holding the old battery to the PCB then wrapped some electrical tape around it. They then soldered some wires to the PCB and a CR2032 battery holder (wrong vertical one) and used electrical tape to hold that against …

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Re: PCI IO bracket for Voodoo 3 AGP - pls help me find one !

Posted on 2024-05-30, 11:50

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There was someone on this forum making proper metal brackets for all sorts of cards. I’m sure there was a Voodoo 3 one. Unfortunately I can’t find their post.

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Re: X2GS SE - GS Sound Preset Switchable?

Posted on 2024-05-30, 02:12

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Found the answer here Re: X2GS : Waveblaster board with dual soundbank support, official Dream/Roland licensed GS bank

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X2GS SE - GS Sound Preset Switchable?

Posted on 2024-05-30, 00:17

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Apologies if this has been answered before, I couldn't find a post with this exact question. I was thinking of getting a X2GS SE, when ordering you can choose between "Default Dream Present" and "SC55 Appiah4 v4.5" for the GS Sound Preset. I read that the GS Sound Preset is 16mbyte read only. Does …

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Re: Smoke coming from PAS16

Posted on 2024-05-25, 09:20

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by zuldan

in Marvin \ Sound

in Marvin \ Sound

As you have confirmed that VA and VD are not shorted on the card (both by measuring the resistance and by finding vastly different voltages on VA and VD without the CS4216 installed), you should also check whether VA and VD are shorted on the CS4216. If that's also not the case, possibly everything …

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Re: Smoke coming from PAS16

Posted on 2024-05-25, 06:56

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

The low voltage on VA is bad. There might be two reasons for it: Either VA is generated from +12V, and you need to also supply +12V to get a good VA supply, or something is shorted on VA. Of course, both could be true at the same time. Looking at the whole card, I identify VR2 as 7805 regulator. …

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Re: S3 Gx2 memory expansion

Posted on 2024-05-23, 01:33

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by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anonymous Coward wrote on 2024-05-23, 00:50: I own a Winfast S680 with the module. Do you need photos of it? Yes,please post pictures of the module front and back. Thank you!

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Re: Bought these (retro) hardware today

Posted on 2024-05-22, 08:08

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

to3cutter wrote on 2024-05-22, 06:58: Masejoer wrote on 2024-05-21, 05:07: One of my most exciting purchases in the last couple of years. How much you pay for it? If it's not a secret... Pricing is on their website

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Re: S3 Gx2 memory expansion

Posted on 2024-05-21, 08:51

by

by zuldan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The module you are after looks similar to this here https://www.ebay.com/itm/256385754547? This is the ATI 4Mb SGRAM module, no idea if itll work in your GX2 but it might, finding the S3 version is a bitch and its usually either listed as a Compaq or HP part as they made a ton of S3 GX2 cards. That …

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:51

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Please check whether both VA and VD actually reach 5V with the CS4216 still removed. You can do this by injecting 5V into the ISA 5V contacts as you already did when you found that the CS4216 got too hot, no need to test that in system. VD is 4.96v and VA is 2.2v I'd also like to point out that the …

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:33

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

Some acetone should quickly tell us if the chip is fake or not, quick dab of acetone on the IC markings and wipe it off. If the markings stay and dont get removed or faded then its a good chance the IC is real, would still need some testing to verify its working though. They passed the acetone test …

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:31

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by zuldan

in Marvin \ Sound

in Marvin \ Sound

If I'm unsure whether a chip might be fake, I like to plausibilize the chip by testing the ESD diodes in them: Use a meter in diode test mode, red lead to the appropriate ground connection, black lead to a signal pin. On many pins, you will get a reading betwenn 0.3 and .7 volts. Pins with similar …

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:25

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by zuldan

in Marvin \ Sound

in Marvin \ Sound

Looking at the PCB photo, I see all of these pins connecting somewhere using wide traces . This is a hint that these pins are intended to be connected directly to GND or Vcc. It is common to use wider traces for power rails, and just make every trace wide that is connected to a power rail. Taking a …

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:24

by

by zuldan

in Marvin \ Sound

in Marvin \ Sound

It does sound like the chip is operating in the wrong mode, with one or more of the multi-function pins operating as outputs when they're intended to be input only. But that's probably just a symptom of VCC being almost shorted to GND; I'd say there's still more bad caps to be found. That is true. …

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