Megasound Adlib clone problem \ VOGONS

Megasound Adlib clone problem

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First post, by The Serpent Rider

Posted on 2018-02-01, 15:04

The Serpent Rider Offline

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One of my lucky (or unlucky) finds. It appears to be missing two huge capacitors (desoldered?), but apart from that looks good. Card is properly initialized by OS and games, but I can't get any sound from it. Is it missing capacitors problem or something else? Does anyone know their nominals?

The attachment Megasound Adlib clone 1.jpg is no longer available

The attachment Megasound Adlib clone 2.jpg is no longer available

Last edited by The Serpent Rider on 2018-02-01, 16:17. Edited 1 time in total.

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Reply 1 of 2, by Rawit

Posted on 2018-02-01, 15:35

Rawit Offline

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Probably the missing caps. You should ask this guy on YouTube: https://www.youtube.com/watch?v=oo_ky1CRCcU about the caps.

YouTube

Reply 2 of 2, by Tiido

Posted on 2018-02-01, 20:18

Tiido Offline

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Those capacitors are DC offset removal caps on final output from the amplifier chip. The larger the capacitance the better bass response will be if used with passive speakers. 16V or higher for voltage and 220µF and higher for capacitance, with bigger is better for capacitance (but pay attention to physical dimensions).

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