Q303 PSU problem?

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13-Jan-2019 06:06 PM

Frank

Frank

Posts: 36

Hi all,

I have revisioned my Q303 with the Dada boards and see the following behaviour. I have made a current limiter with a 60V lamp in the 220V life lead. When I turn on the amp the lamp is lighting up and I meassure 1.9V between pins 1 and 9 on both driver boards. What is my prime suspect?

Thanks,

Frank

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14-Jan-2019 08:06 PM

Frank

Frank

Posts: 36

I disconnected 12 from the PSU and still the lamp lights up. I meassured 0V between 12 and 15 but that is logical I guess. Is my TR3 the main suspect? Or what else?

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15-Jan-2019 02:28 AM

EJP

EJP

Posts: 1544

We can't diagnose problems via this forum.
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