Cyrix200+ wrote:I had a 'MHz display' with one segment not working (the middle horizontal one in the left digit so a commonly used one). I finally had enough to order at Mouser with free shipping, so the first thing I did when that arrived was to solder in the new display:
But the board would not power up at all. No spinning PSU fan and POST card voltage LED for 5V (or was it the 12V one? I don't remember) was the only thing to light up. The culprit was found very quickly. Desoldered it and now the board seems to work just fine. Need to find a replacement for it, and the > 20 other ones on the board. Are eBay/AliExpress tantalums reliable?
Exciting 😀 Surely some basic low ESR capacitors should be a suitable replacement? Also in my experience and what I've seen so far, it's only the ones around the PSU that appear to have trouble usually, so why not wait til the next one goes pop? At least they're easy to spot 😁
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Back in March (which for some odd reason I had thought was March 2018, but no, thankfully it was March 2019) I got hold of this oddball SAA1099 clone card that a good PCB designer in Russia (pcbsale-ru) put together.
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I had been afraid to run it because there was so little info and I know little about electronics and could find little about putting this together.
A few weeks ago I found This Thread by "Tronix", the guy that originally put together the SAA1099 reproduction board. His most recent posts he bought the same board and worked out that fitting a small voltage regulator would clean up the output significantly.
I fitted that to my card this evening and finally had a go with it. It sounds great! 😁
Worked first time, although I did cheat a little bit because I also put together the Snark Barker, so I have already had some experience with the GameBlaster-esque soundcards, this sounds a bit better though.
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