[sdiy] Arp Odyssey 2 dead PSU

[John Mahoney]

Transformer failure?

John


At 05:45 AM 11/29/2009, Antonio Tuzzi wrote:
>Dear SDIYers,
>
>suddenly my ARP ODYSSEY is dead...
>tested the PSU and is giving
>-60 V on the -15 V rail
>and 0V on the +15V rail
>
>OUCH!!!
>
>questions:
>I really don't understand how this could happen...
>anyway
>the 2 tantalum on the PSU board are ok
>
>1) do you think that something wrong happened to the boards A B and C
>powered at -60 and 0 ?
>
>2) Can I consider directly responsible the UA723 regulator ? (I hate
>the ARP PSU design!)
>
>
>thanks
>
>Antonio