Be sure to align pin 1 with the socket and with the Dallas Semiconductor
Battery Backup and the memory chip and plug them into U15. My units do not
even have sockets installed in U16, but I suspect the two locations are pretty
much in parallel except for an address line to give the unit more ram, or to
use a smaller capacity ram chip and use two instead of the one.
I happen to have a unit down waiting for a new battery backup chip, and they
are hard to find. The jobbers have them but one wants a minimum order of $1000
and the other one I checked out wanted $88 for a minimum order. My units are
over 15 years old and well beyond the battery life of the Dallas Semiconductor
backup unit.
73 - Jim W5ZIT
rwjohn49 <[EMAIL PROTECTED]> wrote:
Thanks for the help. Need a little more clarification. I have never
used one of these before, so I don't want to blow it up. I have a
chip that is stacked....I suppose this is the one. I took it apart
and wouldn't you know it, I managed to turn the chip socket with the
smaller chip inside around, so I am not sure of its orientation. It
has a cut out on the small chip inside the socket. I suppose this
marks pin one.... and I would place the large chip with its dot in
the same direction. Now, I have an empty chip space. What socket
does it go into... U15 or U16....should have marked it....dumb. Sorry
for the bother, but a little bit of orientation will keep me from
blowing it up...
Thanks
ron
--- In Repeater-Builder@yahoogroups.com, "Maire-Radios" <maire-
[EMAIL PROTECTED]> wrote:
>
> take out the chip with the battery and unplug the chip from the
battery give it 3 mins or so and put it back should default.
>
>
> ----- Original Message -----
> From: rwjohn49
> To: Repeater-Builder@yahoogroups.com
> Sent: Saturday, November 03, 2007 9:11 PM
> Subject: [Repeater-Builder] zetron 38a
>
>
> Folks,
>
> I just got a Zetron 38A at a hamfest. Works fine in the repeater
but I
> have tried the password code and no results. It is listed in the
book
> as 12123#. Someone must have changed it... What do I do now? Can
it
> be set back to a factory default?
>
> thanks,
>
> ron
>
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