Well I thought I was sending it off group 8^)
Anyway my personal experience is that that schematic matched my 3801
pretty close
Dave
On 4/21/2019 9:19 PM, Artek Manuals wrote:
Richard
somebody (on this group?� .. five or more years ago?) reverse
engineered the DC to DC power supply/converter . I have sent you a
copy of that via private email
Dave
[email protected]
On 4/21/2019 12:04 PM, RICHARD GOLDING via time-nuts wrote:
Hi, can any one tell me where I can find the schematic for the Z3801a
Power supply board?
My Z8301a now refuses to start up. All the pico fuses are intact and
there is obvious signs of overheating/damge.
There is a connection between the power input +ve supply and both the
DC/DC converters but there is no connection betweenthe -ve and DC/DC
converters - hence no output voltages anywhere!
I remember reading on the forum that there is a pre-regulator between
the Power input and DC/DC converters, so I'm guessing�that is where
the problem lies, but without a schematic it's going to be hard to
locate a fault.
Any help appreciated
73
Richard G3VZG
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Dave
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www.ArtekManuals.com
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