[Motorola] Need FID for Mitrek T81JJA

[motorola@mailman.qth.net]

Great Help, Paul...  Thanks!

While you have da-book out :)
What are the levels of the; SW B+, B-, and the routing
for the SQUELCH and VOLUME lines ?  Chan Select is prob
same as Micor - (7/8/9/10) to GND to select, and PTT is
Hi-to-Lo to key ?

Is circuit "B" looking for an internal regulated voltage,
or same potential as "A" (eg A+ to B+, A- to B-) ?
A+ and B+ in the Micor are the same levels, iirc.

All I really need to do for now, until I get a cable
and remote head is verify operation with test leads.
(guess I'd better find a head and cable for this ;)

I have a spare TLN1096A-3 (from a Micor) with the pots
in it, if I have to provide a balanced resistance to
the SQUELCH and VOLUME lines.

I'm assuming (hate doing that), that the DET AUDIO, and
Discriminator Buffer Out on the Micor, are one in the same,
and used to feed the SQ and VOL controls.

On Sun, 24 Mar 2002, Paul Cavnar wrote:

> Hi Bruce -
> 
> The FIB pin-outs for the T81JJA are as follows:
> 
> 1)    MIC HI
> 2)    MIC LO
> 3)    SPKR HI
> 4)    SW B+
> 5)    SPKR LO
> 6)    B -
> 7)    F1 SEL
> 8)    F2 SEL
> 9)    F3 SEL
> 10)    F4 SEL
> 11)    DET AUDIO
> 12)    PTT HI
> 13)    PTT LO
> 14)    SQUELCH
> 15)    VOLUME
> 16)    AUDIO MUTE
> 17)    A - (GND)
> 18)    SPARE
> 19)    A + (BATT)
> 
> Pins numbers start on the upper right corner when looking
> at the connector from the pin side, and go counter-clockwise
> across the top, then to the bottom row from left to right.  The
> large pins in the center are 19=left, 18=center and 17=right.


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