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Motorola R2001A Reboot when switching functions

This forum exists for the purposes for discussing service monitors (This includes but is not limited to Motorola, HP, Aeroflex, GD, etc). Additional topics allowed include test procedures, interpretation of test results, where to find information about specific tests, antenna VSWR, return loss testing, duplexer and filter alignment, etc.

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cahighwayman22
Posts: 193
Joined: Sun Jul 20, 2008 11:43 am

Motorola R2001A Reboot when switching functions

Postby cahighwayman22 » Tue Sep 12, 2017 8:12 am

I have an R2001A/HS that everytime I switch from Monitor to Pwr Monitor mode or Generate Mode (or vice versa) the monitor reboots. It acts as if it's not detecting when the RF module switches, or it has a corrupted processor.

Any thoughts or ideas?

-Trevor

Audiotron
New User
Posts: 41
Joined: Wed Apr 05, 2017 5:51 am

Re: Motorola R2001A Reboot when switching functions

Postby Audiotron » Mon Sep 18, 2017 5:40 am

Hi ,

It makes me think that to a deficiency in some line of feeding mainly of the + 5V !!

cahighwayman22
Posts: 193
Joined: Sun Jul 20, 2008 11:43 am

Re: Motorola R2001A Reboot when switching functions

Postby cahighwayman22 » Wed Sep 20, 2017 9:16 am

Problem was the over current pot on the LVPS was misadjusted.

Now another problem cropped up...the Deviation bar graph, wattmeter bar graph, and RF level display doesn't show any movement. The RF level pot does work, and changes the RF level from the A11 Module, just doesn't display it. The Level stays at 0mv, -28dbm.

Any thoughts or ideas?

-Trevor

Audiotron
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Posts: 41
Joined: Wed Apr 05, 2017 5:51 am

Re: Motorola R2001A Reboot when switching functions

Postby Audiotron » Fri Sep 22, 2017 12:17 pm

Hi Trevor ,

I already got this fault on the K101 Relay,

cahighwayman22
Posts: 193
Joined: Sun Jul 20, 2008 11:43 am

Re: Motorola R2001A Reboot when switching functions

Postby cahighwayman22 » Mon Sep 25, 2017 10:21 am

K101 Relay, on which board/Module?

-Trevor

Audiotron
New User
Posts: 41
Joined: Wed Apr 05, 2017 5:51 am

Re: Motorola R2001A Reboot when switching functions

Postby Audiotron » Mon Sep 25, 2017 5:17 pm

in A11 Module !!

cahighwayman22
Posts: 193
Joined: Sun Jul 20, 2008 11:43 am

Re: Motorola R2001A Reboot when switching functions

Postby cahighwayman22 » Thu Oct 05, 2017 2:02 pm

No, that's not it.

The problem is in the A3 Scope/DVM Board. The switching signals from the processor aren't getting to the A3 board to switch the bargraphs off and on.

Do you have a spare A3 board?

-Trevor

Audiotron
New User
Posts: 41
Joined: Wed Apr 05, 2017 5:51 am

Re: Motorola R2001A Reboot when switching functions

Postby Audiotron » Thu Oct 05, 2017 7:40 pm

OK ,
I was thinking you were having RF level reading problems

Audiotron
New User
Posts: 41
Joined: Wed Apr 05, 2017 5:51 am

Re: Motorola R2001A Reboot when switching functions

Postby Audiotron » Fri Oct 06, 2017 6:19 am

Hi ,

Unfortunately I have not, I already had some of these units for sale, but I had nothing left of them ... tried ebay ?


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