[amsat-bb] Re: LVB 5400 rotor control problem

Stephen E. Belter seb at wintek.com
Tue May 21 18:17:38 PDT 2013


You will get better answers from other people on the list, but a couple of
things come to mind:

1.  Do the meters still work on the Yaesu G5400B control box?  If so, the
potentiometers and wiring between the Yaesu control box and the rotors are
probably OK.  If not, check for broken or corroded control cable wires and

2.  If the meters work, then check the wiring and connections between the
Yaesu box and the LVB tracker.

3.  The next thing to worry about after connections is the 5-volt
regulator and analog outputs from the Yaesu that give the position to the
LVB Tracker.

Check the above, then let us know what you find.

73, Steve N9IP
Steve Belter, seb at wintek.com

On 5/21/13 8:43 PM, "John Price" <n4qwf1 at gmail.com> wrote:

>Well after working for a very long time without issues my LVB and Yaesu
>control box have stop talking. The rotor box works perfect with the rotor
>but the LVB display does not indicate any movement. It just sets at 179
> "Az" and "0" El. The switches on the LVB will move the rotor but no
>display movement on the LVB. Anyone got any idea what might be going on
>Thank << John
>N4QWF Amateur Radio Operator
>Formerly KC4AHW  VK3FEZ
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