[NTLK] eMate 300 board repair DZ1

[Michael Sheflin]

Why not send a picture of the component?

Best,
Michael

On Mon, Apr 19, 2021, 3:49 PM Brad Myhal <bradmyhal at gmail.com> wrote:

> Hello all.
> I just picked up an eMate 300 which will run off its battery fine, but is
> in need of repair because it was ran off of a non original power supply.
> On the board there is a component marked DZ1 right next to the power input
> that got very hot and is fried.  I am assuming it is a zener diode
> to regulate the input voltage, it has markings on it "721 KV"  Can anyone
> tell me the value of this component for sure?  Does anyone have a schematic
> of the board?  I have a good suspicion that this is the only damage and if
> I know what value this zener is I could fix it.
> Thanks in advance.
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