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Last day of January !! :)
Well, he made no mention of the display being bad , right !?
Better hope there is 5 Volts developed within, cause its NOT just a simple Three-Terminal Regulator !!!
The internal power is a custom SWITCHER......supply that converts the raw input at the rear and regenerates a highly stable five volts...... I do not recommend any of you guys attempting repair of that......very tricky, I know I've repaired enough of those little beasties to forwarn you....!
Mike Nelson <manicmaestro@...> wrote:
I had a similar thing happen, along with no display.
I'm suspecting the 5V regulator rather than the
battery. Would anyone know the callout (U-something or
Q-something)on the schematic, or whether it's a 7805
or what?
Hoping to revive it,
the manicmaestro
--- trip@... wrote:
> In particular, set parameters 17 and 41 as high as
> they will go and parameter
> 51 to zero.
>
> If that doesn't help, then worry about damaged
> hardware.
>
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