Shipmate RS8100 VHF

[Franz Eckert]

Hi there.

One of my friends have suddenly got this weird problem with his VHF unit.
Every time he switces it on (after being of without power or anything) it
starts up with
INT, 1W and two small || in the display where the numbers are suppsoed to
be, the || are halfsize of what 11 would look like.
He is unable to change channel, and unable to make it go to 25 w, it is like
it has gone beserk or something.
He thinks he may have pushed some button compination that provoked this
state.
Does anybody have a clue?

Wkr
Franz

 

[Franz Eckert]

Franz, you can download a manual here:

http://www.simradusa.net/index.php?option=com_docman&task=search_result
Simrad, Inc

There is sometimes a RESET function that resets the microprocessor, and
that may solve the problem. It would probably be mentioned in the manual.

Good luck.

Chuck

Thanx for the idear Chuck. But i should have mentioned that i already have
downloadet the manual, and that there is no mention of a reset function. But
my idears are going exactly trhe same way as yours, so hopefully somebody in
here knows a way to trigger that VHF out of it's loop.


Wkr Franz

 

[Peter Bennett]

Hi there.

One of my friends have suddenly got this weird problem with his VHF unit.
Every time he switces it on (after being of without power or anything) it
starts up with
INT, 1W and two small || in the display where the numbers are suppsoed to
be, the || are halfsize of what 11 would look like.
He is unable to change channel, and unable to make it go to 25 w, it is like
it has gone beserk or something.
He thinks he may have pushed some button compination that provoked this
state.
Does anybody have a clue?

I had an Icom radio that started doing some very strange things,
something like that. The problem was a dead memory backup battery.

 

[Bruce in Alaska]

Hi there.

One of my friends have suddenly got this weird problem with his VHF unit.
Every time he switces it on (after being of without power or anything) it
starts up with
INT, 1W and two small || in the display where the numbers are suppsoed to
be, the || are halfsize of what 11 would look like.
He is unable to change channel, and unable to make it go to 25 w, it is like
it has gone beserk or something.
He thinks he may have pushed some button compination that provoked this
state.
Does anybody have a clue?

Wkr
Franz

A lot of these type radios have a "PLL out of Lock" line that inputs to
the MPU, to cause just such an indication, and inhibit the radio from
operation untill such time as the PLL comes back into Lock. This should
be documented in the Tech Manual for the radio in question.

Bruce in alaska

 

[Franz Eckert]

Hi Bruce.

Let's see if i get this right. What you mean to say is that the MPU (Master
unit) does not really see that a handset is mounted?
And therefore reacts like it does?. Remember English is not my native
language, allthough i think i do pretty well

Wkr
Franz

 

[Franz Eckert]

Hi Peter.

Simple and straight, offcourse, i will get my friend to change the battery
in any case, just to be sure.
Yoy are right, a dead battery can cause havoc in any computer enveroment.
Will try, and return.

Wkr
Franz

 

[Bruce in Alaska]

Hi Bruce.

Let's see if i get this right. What you mean to say is that the MPU (Master
unit) does not really see that a handset is mounted?
And therefore reacts like it does?. Remember English is not my native
language, allthough i think i do pretty well

Wkr
Franz

No, what I am saying is that, in the design of most, if not all modern
VHF Radios, when the PLL (Phase Locked Loop) goes out of lock, there is
an "Out of Lock" Indicator line input to the MPU (MicroProcessor Unit)
that tells it that the PLL is out of Lock. The programing in the MPU,
then INHIBITS ANY Transmissions from that radio, causes the display to
indicate that there is a problem with the radio, and keeps the radio in
this condition, UNTILL the PLL comes back into the Locked condition.
All this will be documented in the TECH Manual for the radio. This is a
design feature that keeps the radio from transmitting when the frequency
is undetermined, and giving the operator an indication that something is
wrong with the radio. The PLL is the Oscillator that determines the
frequency of the radio, and when it goes "Out of Lock" the frequency of
the radio is undetermined. This design feature keeps your broken radio
from interfering with all other radios in the same frequency band, (Vhf)
untill the internal problem is resolved. (PLL comes back into Lock)

Bruce in alaska

 

[Franz Eckert]

Right Bruce.

This time i read you loud and clear

So, i have to find a way to get it back into sync, or rather get my hands on
the tech manual.
This is probably going to be a rather difficult job. Simrad has been bought
up, and i called the Danish department, and they just say that they do not
support this unit anymore. Sucks!!!
But there must be a copy of the tech manual somewhere in this great world.

Would you happen to know some company that (just maybe) would give a hand
with such a manual??

Wkr
Franz

 

[Franz Eckert]

Hi again.

To follow up on this story. My pal has just decided to buy a new vhf radio.
Some technician told him exactly the same story that you just told me. But
he is very fond of his good old Shipmate, so he would very much like it to
be repaired. But who has thoose files??????
I have access to a programmer, so i could probably write the eprom.
Maybe Shipmate would send the file, as it is no more supported??

Wkr
Franz

 

[Franz]

Hi Salvador.

I just can't seem to get a hold on you, are you anywhere outthere??