TS-480 and 8 Volt jumper

[IZ4MJP]

While I was doing the configuration of new Remote Rig 1258 MKII V7 Setup (for a TS-480) reading the latest version of the user manual I noticed that a "new 8Volt pin jumper" is present on pin 7 in the Control Side Unit

I own a RemoteRig 1258 MKII V4 bought in 2012 that I use (without ever having a problem) with my first TS-480 SAT (Jumper configuration Type 1)
In the 2012 version of the User Manual there is no mention about the 8 Volt Jumper on PIN 7 so, in 2012, I had not placed the jumper.

The question is: should i place the 8v jumper on the new setup?
What function does it have?

Thank you and season greetings.

73, IZ4MJP
Franco

[dj0qn]

Franco,

As far as I can remember, there was always the 8/9 volt jumper (JMP-2). At least when I installed my
first TS-480 using RemoteRig in 2010, I set that jumper.

The old manual has it for sure. If you look at the TS-480 installation section, you will find it along with the
other jumpers and red straps in the matrix box.

The current manual has this explanation on page 23:
The purpose is to provide more voltage for the control panel. The current manual explains it well on page 23:
"5: Control-RRC only: JMP-2 is placed near the back of the RRC next to the RESET button. JMP-2
is used to select if the DC-power to the front panels should be 8 or 9 V. With the strap in
place it will be 8V, which fits all ICOM radios. Without the strap the voltage will be 9V, which
fits Kenwood TS-480 and RC-2000 panels that need 9V for the back-lighter."

However, if you feel that it has been working fine till now, I see no reason to change it.

73,
Mitch DJ0QN / K7DX

[IZ4MJP]

Mitch,
Thank you for the answer.
Sorry but i was referring to the strapping area (two rows of 9 holes). I kept copy of every release of the User Manual since 2010.

In the Rev. 25 - 2012 May 29 at page 167 there is no mention of the 8V strap in the Aux/Mic Configuration table (see attached picture). In the same table JUMP 2 (8/9volt Jumper) is set to 0 (not in place).

In the Rev. 28 - 2013 Feb 02 at page 176 you can find mention of the 8V strap in the Aux/Mic Configuration table (see attached picture). In the same table JUMP 2 (8/9volt Jumper) is set to 1 (In place).

So my RemoteRig Setup (HW V4) has been done following the Rev 25 instructions.

Now that a I have a new Set of RemoteRig (HW v7) i looked at the latest user manual revision A38 - 2017 feb 27 and the config table is the same of Rev. 28.

JUMP 2 has always been set as 0 (not in place) in my first set of RemoteRig (HW v4). Yesterday I tried booth the positions and the only result was a greater or lesser brightness of the display.

One last observation: at page 23 of the latest U.M. at the point 5 is written:
5:
Control-RRC only: JMP-2 is placed near the back of the RRC next to the RESET button. JMP-2 is used to select if the DC-power to the front panels should be 8 or 9 V. With the strap in place it will be 8V, which fits all ICOM radios. Without the strap the voltage will be 9V, which fits Kenwood TS-480 and RC-2000 panels that need 9V for the back-lighter.[/b]

At page 185 in the Configuration Type 1 table the JUMP 2 is suggested set to 1 (in place).
I think is a typo but I'd like to know from Mike which of the two settings would be better to use.

The same for the 8V strap (grey cable in the table) in the strapping area.

73, IZ4MJP