Schematic for GP68 VHF

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n0wmh
Posts: 30
Joined: Wed Aug 25, 2004 11:01 am

Schematic for GP68 VHF

Post by n0wmh »

I want to eliminate the low battery beep, but keep the keypad beep - anyone have a schematic or know what I need to bridge to bypass the low battery signal?


Thanks!
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Tom in D.C.
Posts: 3859
Joined: Tue Sep 04, 2001 4:00 pm
What radios do you own?: Progreso soup can with CRT

GP68...

Post by Tom in D.C. »

According to the service manual, the only thing you can do with the
alert tone is to have it on or off, and the book says that this operation
affects ALL tones on the radio. It would seem that this on/off control
is in the firmware rather than board components.

Not an easy unit to set up, program, change, etc. under ANY
circumstances, which I why I used to have two of them but don't
any more.
Tom in D.C.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.
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Jim2121
Batboard $upporter
Posts: 881
Joined: Wed Dec 10, 2003 2:36 pm
What radios do you own?: A few! Most I sign out!

:

Post by Jim2121 »

you might? find something here: http://www.batlabs.com/gpman/top.html
before this link is gone.......
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n0wmh
Posts: 30
Joined: Wed Aug 25, 2004 11:01 am

Post by n0wmh »

Thanks for the replys. I was hoping there was a way to just by-pass the low battery detect circuitry and still keep the keypad beep.

If I ever find a schematic... why I’d bet there is a way! :)
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