Then just change out the 8 pin EEProm from one into the other for your channels, there also is some code here which tells the programmer what radio it is. Or you can be 'leet and put in a socket as well so you can brute force program the EEProm without the KPT-50 or software.
There are shorting pins on the front panels control chip to determine if the board is for a base or repeater so jump it accordingly if you get a base stations board and remove the extra components you don't need like the channel knob. Refer to the TKR-720 schematic that is bouncing around the net for information about the front panel board.
On 1/27/06, Jim B. <[EMAIL PROTECTED]> wrote:
[EMAIL PROTECTED] wrote:
> Well, it was worth a try.
>
> The RF Deck came out of a TKR 620 desk-top repeater. Unfortunately, the
> front panel and other items were lost when the owner scrapped it out for
> the power supply present in the Desk-Top repeater that the TK-722R came
> out of; as well as the boards I described.
>
> Sorry these parts from the Desk-top repeater weren't the ones you need.
>
> I don't know if the "R" in TK-722R designated repeater, or if every
> TK-722 mobile has the "R" designator. The one I have is RF Deck only;
> no front panel. The whole thing may have been a "Franken-Radio" made
> from genuine used parts. :)
>
> If I am able to finally retrieve the front panel from the desk-top
> repeater these components came from, I will drop you a line.
>
> David
> KD4NUE
Let me see if I can straithen out some of this.
There is no such thing as a TKR-620. The TKB-620 is a low band base
station of the same type as the TKB-720 and 820.
The 'R' in TKR indicated repeater. 'B' indicates base station. A base
cannot be converted into a repeater. The Repeater adds a second VCO and
synthesizer to allow full duplex.
The first number indicates band. A TK-6xx is low band, a TK-7xx is high
band, a TK-8xx is UHF, a TK-9x0 is 800 Mhz, and a TK-9x1 is 900 Mhz.
This applies to mobiles.
The newest commercial radios from Kenwood have four numbers instead of
three, but still follow the same basic format.
The TK-722 is a trunk-mount version of the TK-720 *mobile*. Parts from
it could possibly be used to repair a TKB-720 base, and maybe a few can
used in TKR-720 as well.
I don't really think the 'R' on the end of TK-722R means much of anything.
One of our other techs here just installed a TK-802R in a vehicle
yesterday. Just a trunk mount TK-801...
Finding a place to mount everything in a Chevy Trailblazer was fun though...
--
Jim Barbour
WD8CHL
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