Kenwood TM-281A Adjustment Mode

[jaugu...@verizon.net]

Hi,

I am aware of a ham-radio NG. Unfortunately due to extremely low
activity, I am posting this message here.

Does anyone know the procedure to access the adjustment mode
menu on my Kenwood 2M TM-281A transceiver? This is the menu
that allows you to adjust the power lever, deviation, etc.

Thank You in advance, John N3AOF

PS, I was unable to locate a service manual on the internet, unless
I pay for one.

[Adrian C]

According to the following, it's similar to the previous TM-271A

http://www.eham.net/ehamforum/smf/index.php?topic=78074.0

And there is a 271A Yahoo users group covering the 281A.

https://groups.yahoo.com/neo/groups/tm271a/info

TM-271A service manual here
http://www.repeater-builder.com/kenwood/pdfs/tm-271a-svc-man.pdf


--
Adrian C

[Jeff Liebermann]

On Sun, 17 Aug 2014 12:52:06 -0400, jaugu...@verizon.net wrote:

> I am aware of a ham-radio NG. Unfortunately due to extremely low
>activity, I am posting this message here.
>
> Does anyone know the procedure to access the adjustment mode
>menu on my Kenwood 2M TM-281A transceiver? This is the menu
>that allows you to adjust the power lever, deviation, etc.

There's very little available for the TM-281a because the TM-271a is
almost identical, except for a difference of 5 watts in Pout. Why
Kenwood would need two almost identical models is an open question
that was discussed in the Yahoo Kenwood group in the past.

For adjustment mode, see instructions at:
<http://www.repeater-builder.com/kenwood/pdfs/tm-271a-adjustments.pdf>
Good luck.

--
Jeff Liebermann je...@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

[Michael Black]

On Sun, 17 Aug 2014, jaugu...@verizon.net wrote:

> Hi,
>
> I am aware of a ham-radio NG. Unfortunately due to extremely low
> activity, I am posting this message here.
>

Did you try, or just assume?

People are still posting their ads where they don't belong, so unless you
unless you actually post, you don't know that someone won't jump out of
the woodwork and have an answer.

Michael

[jaugu...@verizon.net]

<SNIP>

>
>According to the following, it's similar to the previous TM-271A
>
>http://www.eham.net/ehamforum/smf/index.php?topic=78074.0
>
>And there is a 271A Yahoo users group covering the 281A.
>
>https://groups.yahoo.com/neo/groups/tm271a/info
>
>TM-271A service manual here
>http://www.repeater-builder.com/kenwood/pdfs/tm-271a-svc-man.pdf

Hi,
I forgot to say in my post that I downloaded the TM-271A SM.
Unfortunately. the circuit board is much different than the TM-281A.
In the TM-271A, there is a place on the PCB where you use a tweezers or other
to short to "points", then turn on the power to enter adjustment mode..

Thanks again for your replies, John N3AOF

[jaugu...@verizon.net]

Hi Michael,

Before I posted here, I downloaded all the headers in the ham-radio NG.
I don't remember how many, but the total number was very small.

However, you made a good point. I will also post there.

John N3AOF

[jaugu...@verizon.net]

On Sun, 17 Aug 2014 10:31:15 -0700, Jeff Liebermann <je...@cruzio.com> wrote:

>On Sun, 17 Aug 2014 12:52:06 -0400, jaugu...@verizon.net wrote:
>
>> I am aware of a ham-radio NG. Unfortunately due to extremely low
>>activity, I am posting this message here.
>>
>> Does anyone know the procedure to access the adjustment mode
>>menu on my Kenwood 2M TM-281A transceiver? This is the menu
>>that allows you to adjust the power lever, deviation, etc.
>
>There's very little available for the TM-281a because the TM-271a is
>almost identical, except for a difference of 5 watts in Pout. Why
>Kenwood would need two almost identical models is an open question
>that was discussed in the Yahoo Kenwood group in the past.
>
>For adjustment mode, see instructions at:
><http://www.repeater-builder.com/kenwood/pdfs/tm-271a-adjustments.pdf>
>Good luck.

Hi Jeff,

Although I downloaded the SM for the TM271A, I decided to use the
link you provided. By golly, this is a different procedure than what I found
in the SM!

I will give that a try in a day or two after I finish some other
projects I am working on.

Again, Thanks, John N3AOF

[Wymsey]

On Sun, 17 Aug 2014 12:52:06 -0400, jaugustine wrote:

> I am aware of a ham-radio NG. Unfortunately due to extremely low
> activity, I am posting this message here.

There's a Kenwood Yahoo group, I own a TS480SAT which has it's own Yahoo
group - there may be one for your radio.


Charlie.



--
M0WYM
Sales @ radiowymsey
http://stores.ebay.co.uk/Sales-At-Radio-Wymsey/

[jaugu...@verizon.net]

>>
>>For adjustment mode, see instructions at:
>><http://www.repeater-builder.com/kenwood/pdfs/tm-271a-adjustments.pdf>
>>Good luck.
>
>Hi Jeff,
>
> Although I downloaded the SM for the TM271A, I decided to use the
>link you provided. By golly, this is a different procedure than what I found
>in the SM!
>
> I will give that a try in a day or two after I finish some other
>projects I am working on.
>
> Again, Thanks, John N3AOF

Hi Jeff,

OOOPS,

I took a quick look at that adjustment page via the link you provided,
and jumped to the wrong conclusion.

The front panel keys are used in making the adjustments, NOT
for getting into adjustment mode.

It is the same as the TM271A SM I downloaded.

There is a BIG difference between the PCB in the TM271A and TM281A,
and you have to access a certain place on the PCB in order to get the
radio into "adjustment mode".

Thanks for trying, John N3AOF

[log...@gmail.com]

I have a copy of the adjustment for the TM 281 a
Please email me for a copy

n1...@live.com

[ermark...@gmail.com]

Hi sir...how to set or program a 15watts in tm 281a?

[pf...@aol.com]

On Tuesday, January 23, 2018 at 8:37:35 PM UTC-5, ermark...@gmail.com wrote:
> Hi sir...how to set or program a 15watts in tm 281a?

Nearly three years gone.