There's a 9 pin serial jack I think it is, on the upper right 
corner on the front panel, that must be the way in and out.  Jim 
WA6EKS

> ----- Original Message -----
>From: Steve Forst <[log in to unmask]
>To: [log in to unmask]
>Date sent: Tue, 12 Aug 2014 12:37:28 -0400
>Subject: Re: TS480 power output?

>You must be pretty brave.   I think the procedure is to use a jig  
that
>plugs into one of the front panel din jacks.  Whatever 
combination of
>pins are jumped or whatever with this jig will load the service
>firmware and the menus can be accessed.

>I'm not sure the voice works in this mode.  Also, I think some 
settings
>have no "default" and are  particular to each radio, so you would 
need
>to note any settings so you can return to them if needed after a 
change.
>   End of the process is to reinstall operational firmware and do 
a full
>reset, so you should have backed up all your  menus and memories 
first
>so they can be reloaded later.

>A google search can probably kick up some info on all of this.   
Kenwood
>tries to dissuade  folks from  tweaking with this stuff.

>73, Steve KW3A






>On 8/12/2014 12:11 PM, Eric Oyen wrote:
>> I have a question (and kenwood seems reticent to answer it).  
How can I =
>> gain access to the service menu on the radio? I know there is 
one (its =
>> mentioned in the service manual) but there isn't any described 
method in =
>> said manual for entering it.

>> -eric

>> On Aug 12, 2014, at 7:33 AM, Steve Dresser wrote:

>>> Well, I wouldn't make a 20-minute transmission running full 
power, bu=3D=

>>> t that isn't likely to happen on 10 meters.
>>> =20
>>> Steve
>>> =20
>>> =20
>>> ----- Original Message -----
>>> =3D46rom: Don Breda <[log in to unmask]
>>> ,to3 [log in to unmask]
>>> Date: Tuesday, August 12, 2014 7:46
>>> Subject: Re: TS480 power output?
>>> =20
>>>> =20
>>>> =20
>>>> Ok I was probably wrong but I thought it wasn't good to run 100 
wat=3D
>>> ts on
>>>> fm since its carrier on all the time unlike sideband or cw.  
Thought=3D
>>> the
>>>> final chip wouldn't tolerate that  for very long.
>>>> =3D20
>>>> Thanks for clarification.
>>>> =3D20
>>>> Don
>>>> =3D20
>>>> =3D20
>>>> =3D97=3D20
>>>> Don Breda <[log in to unmask]