lazenbleep Posted May 11, 2018 Report Share Posted May 11, 2018 Hi! Long time no speak. So, I plugged in my Sammich after a 3 year break (I know, I'm sorry), and there's an issue. There is only some odd low level sounds. At one point I actually heard something like the SID, but it disappeared. On opening up the box I found that the SIDS are REALLY hot when powered, like they burn to the touch. Any ideas, or starting points for investigation? It's a pair of 8580's, 1A linear PSU, and it was working before. The mods are the potentiometer mods to A0-A4. Many thanks! Quote Link to comment Share on other sites More sharing options...
gerald.wert Posted May 11, 2018 Report Share Posted May 11, 2018 What are your voltages at the regulators and at the vcc on the pic and at the 8580? I would make sure you have your voltages set properly. You can test with the sids out so you do not burn them. If the voltage is low you may have a short or have a bad solder or bad component somewhere to find. Maybe you are using the wrong power supply as well. That could be causing a lot of extra heat if the regulators have to dissipate a higher voltage as heat. Quote Link to comment Share on other sites More sharing options...
gerald.wert Posted May 11, 2018 Report Share Posted May 11, 2018 http://www.midibox.org/dokuwiki/lib/exe/fetch.php?media=projects:sammichSID_build_guide_v1_0.zip There is a good picture in the build guide of what voltages should be where. Quote Link to comment Share on other sites More sharing options...
lazenbleep Posted May 11, 2018 Author Report Share Posted May 11, 2018 Fantastic, thanks for your help, I'll do some testing and report back! Cheers Quote Link to comment Share on other sites More sharing options...
lazenbleep Posted May 19 Author Report Share Posted May 19 OK apologies, that took a little while. 6 years and 3 children later, I'm back. So Voltages match the build guide, with the exception that 12V reads as 10.86. the guide suggested this would be ok. Any ideas? Thank you! Quote Link to comment Share on other sites More sharing options...
Sgw32 Posted September 18 Report Share Posted September 18 On 5/19/2024 at 1:06 PM, lazenbleep said: OK apologies, that took a little while. 6 years and 3 children later, I'm back. So Voltages match the build guide, with the exception that 12V reads as 10.86. the guide suggested this would be ok. Any ideas? Thank you! Try to replace sids with cheaper alternatives like swinsid Quote Link to comment Share on other sites More sharing options...
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