Fixing HP 3000 model 37 PSU

aswood at t-online.de aswood at t-online.de
Mon Sep 26 10:10:24 CDT 2016


So no good experiences with the brokers in China?

> Am 26.09.2016 um 17:02 schrieb Rik Bos <hp-fix at xs4all.nl>:
> 
> Some time ago I acquired a HP 3000/37 micro, it has a faulty psu.
> 
> One of the mosfet controlling the power transistor BUX48 was shorted an blew
> up the whole power stage.
> 
> Getting new fet's and power transistor wasn't the problem, but the regulator
> IC also has blown.
> 
> The regulator IC is marked CC3896F made by SB and also has this number
> '3713045', the only info I can find on the net is provided by the known IC
> brokers from China.
> 
> I'd like to get this box running again, so I'm looking for the IC or a
> replacement PSU which is an ITT PEC 3945 P/N 6064265.
> 
> Any other info about it like diagrams and datasheets about the CC3896F are
> also welcome.
> 
> 
> 
> Thanks,
> 
> -Rik
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