[time-nuts] Z3801 Power Supply Schematic?

[Artek Manuals]

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
manuals at artekmanuals.com



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
Manuals at ArtekManuals.com
www.ArtekManuals.com




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