[time-nuts] Z3801

[Connie Marshall]

Great info Nigel!!! I will go ahead and try to get the necessary voltages
with external supplies to see if the mother board is functional then if so,
I will try to fix/rebuild the PSU module.

Connie
k5cm

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
Behalf Of GandalfG8 at aol.com
Sent: Friday, April 11, 2008 12:35 PM
To: time-nuts at febo.com
Subject: Re: [time-nuts] Z3801



In a message dated 11/04/2008 17:57:31 GMT Daylight Time,
connie.marshall at suddenlink.net writes:

Looks  like my HP-Z3801 got zapped in the lighting storm last night. The
Voltage  Converter Assembly appears to be bad. Not yet sure if it got the
mother  board also. Are there schematics out there, and can you get
replacement  parts for the DC to DC converter package. I have searched the
K8CU pages  and of course have the user manual.  Would it be possible to
supply  the 5/15/-15 volts from and external supply or would that have an
adverse  effect on the performance of the oven and  oscillator.



------------------------
Hi Connie

I'm sorry to hear your bad news, let's hope it didn't get the motherboard
too:-(

I've been looking for a spare PSU module for quite a while now  without
success.
I did think of just building a separate PSU but was a bit wary as  the outer
oven controller is on the power module and I wasn't sure what  that
involved.
However, I recently came across this web page, which you  might find
useful...

_http://homepage.sunrise.ch/mysunrise/shegnauer/Z3801A/Power%20Supply/z3801a
_p
ower_supply.htm_
(http://homepage.sunrise.ch/mysunrise/shegnauer/Z3801A/Power%20Supply/z3801a
_power_supply.htm)

regards

Nigel
GM8PZR




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