Search found 837 matches

by DJP126
Tue Jan 23, 2024 4:52 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001A started blowing 1.5A AC line fuse
Replies: 1
Views: 151

Re: R2001A started blowing 1.5A AC line fuse

Hello Jim, I may be the bearer of bad news but IIRC most of the time when the 1.5A fuse blows, it is usually the line input filter or the power transformer. Also, make sure the center contact of the line connector is grounded to the chassis.
by DJP126
Sat Dec 23, 2023 11:09 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001D
Replies: 1
Views: 500

Re: Motorola R2001D

Epson models MX80 through RX80. Must be 9 pin, dot matrix printer. Same with IBM models. Also must have serial interface, set to 9600 baud, no parity. I don't remember what other requirements there were (if any).
by DJP126
Sun Feb 21, 2021 7:19 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2600B/SP question
Replies: 4
Views: 6197

Re: R2600B/SP question

I used to work in Motorola's test equipment service depot and serviced all the monitors from the S1327 series to the R2600 series. That being said, I never saw an "SP" designation on any of the R2600s. Best guess is that it might have been used by development for testing new options. If so...
by DJP126
Thu Oct 15, 2020 5:26 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001A R2002C A2 scope cards exchange will work
Replies: 2
Views: 5573

Re: R2001A R2002C A2 scope cards exchange will work

They are, for the most part, the same board and will work. There are some minor engineering changes, hence the model number change from "A" to "B".
by DJP126
Mon Jun 29, 2020 2:56 pm
Forum: Software & Firmware Releases & Issues
Topic: USB Programming After Window 10 2004 Update
Replies: 2
Views: 7382

Re: USB Programming After Window 10 2004 Update

The 2004 update has been reported to cause problems with various programs that use comm ports. Supposedly Microsoft is working on it.
by DJP126
Fri Mar 20, 2020 3:24 pm
Forum: Radio Programming
Topic: Astro Saber programming help - video
Replies: 9
Views: 10231

Re: Astro Saber programming help - video

The RIB has a 5 V supply (78L05), a -5 V supply and 4 protect diodes on the Bus+ and Bus- lines. These are the usual failure points.
by DJP126
Sun Dec 22, 2019 7:44 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2600B - Will not power up / Need DC Cable Part No.
Replies: 5
Views: 7246

Re: R2600B - Will not power up / Need DC Cable Part No.

Alex, if you have a DC power connector from the old R2000 series, it's the same connector. Pins 1 & 2 are V+, pin 4 is V- and pin 3 is for charging the battery pack. Have a Merry Christmas.
by DJP126
Tue Nov 19, 2019 10:58 am
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001C problems - help gratefully received
Replies: 13
Views: 10956

Re: R2001C problems - help gratefully received

First, the oscillator module contains its own 9 volt supply to the oscillator. As soon as the unit is connected to a power source, voltage is applied to the oscillator. Second, your problems seem to be intermittent. If so, I suspect that the connectors from the front panel flex circuits to the mothe...
by DJP126
Sat Mar 09, 2019 6:50 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2660B Hangs when selecting Spectrum Analyzer Display
Replies: 2
Views: 5794

Re: R2660B Hangs when selecting Spectrum Analyzer Display

Try changing the spec. anal. display to 100Mhz/div. It's been a very long time since I've seen a 2660 but I seem to recall that it had an "extended" capability on the spectrum analyzer. When in that "extended" setting, the processor would slow down tremendously.
by DJP126
Wed Jun 13, 2018 7:15 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: COM 120B filter options syntax error
Replies: 6
Views: 7746

Re: COM 120B filter options syntax error

Just a WAG (Wild Ass Guess), did you try cal:eeprom:ifbw0:300 ?
by DJP126
Fri Feb 02, 2018 4:13 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Maxtrac RF Board Help Please
Replies: 1
Views: 2950

Re: Maxtrac RF Board Help Please

They are the same boards. Motorola changes the suffix of the model numbers when there are major changes to that unit. This might be due to component changes, feature or option additions or even major rewrites of system firmware. In this particular case, the changes between the "B" and &quo...
by DJP126
Sun Jul 30, 2017 7:00 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: So I bought a stack of Maxtrac's at my local junk show.
Replies: 7
Views: 4446

Re: So I bought a stack of Maxtrac's at my local junk show.

Sorry I can't help much with this, but I can offer some additional info for you. The RF board and Logic board numbers starting with 84D80.... are the factory part numbers for the raw circuit boards (no components installed). The "HLB" and "HLN" numbers are the numbers for the RF ...
by DJP126
Tue May 09, 2017 6:11 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2200A vs. R2200B - Whats the difference?
Replies: 12
Views: 4589

Re: R2200A vs. R2200B - Whats the difference?

Sounds decent to me. Keep in mind, the CRTs are NLA so keep the intensity down when not in use.
by DJP126
Mon May 08, 2017 8:37 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2200A vs. R2200B - Whats the difference?
Replies: 12
Views: 4589

Re: R2200A vs. R2200B - Whats the difference?

Whenever Motorola makes a suffix change, "A" to "B" to "C" etc. it is due to a "major" engineering change. This change may be for component & circuit changes (due to a component becoming NLA from the supplier), added features requiring a rewrite to firmwar...
by DJP126
Sat Apr 22, 2017 4:32 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2410A Service Manual needed
Replies: 2
Views: 2631

Re: R2410A Service Manual needed

Motorola never had a service manual for the R2400 series. What they provided was the R2200 service manual with addendums for the module differences between the R2200 & R2400. Also the service manual on repeater-builder is for the R2200A.
by DJP126
Fri Apr 14, 2017 12:28 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Can Spectrum Analyzer be added to a R2200b
Replies: 2
Views: 2481

Re: Can Spectrum Analyzer be added to a R2200b

Hi question Can one add a Spectrum Analyzer be added to a R2200B with an option card. I don't know so asking. If it is possible. Thanks. It can be done but not worth it. Although the R2200 and R2400 LOOK identical, the front panel and the RF I/O module are different. You would also have to get the ...
by DJP126
Thu Apr 06, 2017 2:29 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2400 Freq. Error
Replies: 5
Views: 3031

Re: R2400 Freq. Error

Yes it is. That "screw" is a dust cover so don't lose it.
by DJP126
Thu Apr 06, 2017 2:03 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R-2001A with a slash U
Replies: 2
Views: 2322

Re: Motorola R-2001A with a slash U

Sold as used after trade-in.
by DJP126
Thu Apr 06, 2017 2:02 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2100 LVPS differences
Replies: 6
Views: 3271

Re: R2100 LVPS differences

The /U in the model # signifies that the analyzer was traded in, repaired, calibrated and sold as used.
by DJP126
Sun Apr 02, 2017 10:31 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2400 Freq. Error
Replies: 5
Views: 3031

Re: R2400 Freq. Error

Is that .800 KHz error across the entire spectrum or does the error change by frequency band (Low band, high band, UHF, 800 MHz)? If it changes by band, the master oscillator could be off slightly. As for the fluctuations, you might be overdriving the receiver. Try adding some attenuation.
by DJP126
Sun Apr 02, 2017 10:17 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001D keypad jibberish
Replies: 2
Views: 2513

Re: R2001D keypad jibberish

I have to agree with Bernie, special function 79 should solve your problem. Bernie and I both worked on these analyzers for Motorola.
by DJP126
Tue Mar 28, 2017 8:41 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001C/HS will not power up.
Replies: 16
Views: 6083

Re: R2001C/HS will not power up.

You also might want to be sure that the three ribbon connectors are connected properly. Also your problem MIGHT be on the HVPS, there is a circuit that acts as a closed loop in the two supplies that, if bad, can cause your symptom.
by DJP126
Sun Mar 19, 2017 9:02 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001A operating manual
Replies: 2
Views: 2484

Re: Motorola R2001A operating manual

The service manual is also the operating manual.
by DJP126
Thu Mar 02, 2017 9:10 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001D Service Monitor
Replies: 10
Views: 11244

Re: R2001D Service Monitor

Sorry, my error. Spcl fctn 99 gives you firmware version. 79 is the NVM reset. Guess I AM getting old.
by DJP126
Thu Mar 02, 2017 8:19 am
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001D Service Monitor
Replies: 10
Views: 11244

Re: R2001D Service Monitor

Try re-setting the NVM using special function 99. To do this, press Both cursor arrows on the keypad at the same time, then the #9 twice.
by DJP126
Thu Feb 23, 2017 6:37 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2100 Service monitor BFO pot/sw
Replies: 2
Views: 2444

Re: R2100 Service monitor BFO pot/sw

IIRC the BFO control is a simple 5K pot, no switch to it. Motorola P/N 18-80346A14. Probably NLA.
by DJP126
Sat Feb 18, 2017 6:25 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: MSI takes a hit on Wall St.
Replies: 2
Views: 2882

Re: MSI takes a hit on Wall St.

Don't know what you are talking about. I see MSI closed at $70.31 up $0.65 or +0.83%. Also your link above shows an error.
by DJP126
Sun Jan 08, 2017 9:11 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2014 Alignment
Replies: 10
Views: 6689

Re: R2014 Alignment

Classified
by DJP126
Fri Jan 06, 2017 6:05 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2014 Alignment
Replies: 10
Views: 6689

Re: R2014 Alignment

Sorry but, I'm looking at the serial # sticker as I write this. https://drive.google.com/drive/folders/0B5n-f3Yxc7GBclhxdkt6TUw3OUU I used to work for Motorola in the Test Equipment Service Depot since before the first R-2001A was built to past the last of the R2000D series was sold, so believe me ...
by DJP126
Thu Jan 05, 2017 11:28 am
Forum: Test Equipment & RF Equipment Alignment
Topic: R2014 Alignment
Replies: 10
Views: 6689

Re: R2014 Alignment

Can anyone enlighten me on what the "I" in the model identifier "R2015DIHS" stands for or what this model does differently? There was no such designation. That model would have originally been....R-2015D/HS ....which would be the R2001D analyzer with the type 1 trunking option, ...
by DJP126
Thu Dec 22, 2016 2:44 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2014 Alignment
Replies: 10
Views: 6689

Re: R2014 Alignment

The repeater builder site has a pdf file on the R2000D series here.

http://www.repeater-builder.com/test-eq ... manual.pdf
by DJP126
Tue Dec 13, 2016 5:59 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2400A display
Replies: 6
Views: 3114

Re: R2400A display

Just an FYI for all but good to remember......Whenever a Motorola model number has a suffix change (A to B, B to C, etc.) there was a major design change, component change, firmware/software change or a combination f those changes. The ONLY exception that I have ever seen to this was when they chang...
by DJP126
Sun Dec 11, 2016 6:21 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2400A display
Replies: 6
Views: 3114

Re: R2400A display

Yes the R2400A uses the R2200B maintenance manual with a small supplement added. However NOTICE that it is the R2400A & R2200B and NOT the R2200A. IF you compare the R2200A manual and the R2200B manual, module to module, you WILL SEE MORE differences than you realize. For instance, the receiver ...
by DJP126
Sat Dec 10, 2016 6:21 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2400A display
Replies: 6
Views: 3114

Re: R2400A display

The bottom line on the right side display is missing many segments. This problem has been intermittent for a while. This time it looks like it will not correct its self. I have a R2200A that has some old age problems. Can some of the R2200 parts be moved to the R2400? If so which ones and what is i...
by DJP126
Sat Nov 19, 2016 4:08 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Motorola pager programming definition help
Replies: 2
Views: 3362

Re: Motorola pager programming definition help

N = numeric T = Tone only A = Alpha numeric
by DJP126
Thu Nov 03, 2016 7:36 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001A
Replies: 34
Views: 10503

Re: Motorola R2001A

Guys, you won't find a commercial # for the CRT as Motorola had it manufactured specifically for the R2000 series. No other piece of equipment uses that CRT. Also those "chopped" rotation coil wires you have, came from the factory on the "A", "B" and "C" serie...
by DJP126
Tue Nov 01, 2016 6:26 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001A
Replies: 34
Views: 10503

Re: Motorola R2001A

Lynn,

This should make things easier.

http://www.repeater-builder.com/test-eq ... 9e84-o.pdf
by DJP126
Mon Oct 31, 2016 10:01 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001A
Replies: 34
Views: 10503

Re: Motorola R2001A

I had a similar trace "fading" problem on my R2001B. A touch-up of the Intensity Limit and Intensity Balance pots on the A2 card fixed it right up. Unfortunately my unit is still suffering from almost unreadable (extremely dim) text but quite decent (bright and clear) swept traces. All co...
by DJP126
Wed Oct 26, 2016 3:25 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001A
Replies: 34
Views: 10503

Re: Motorola R2001A

Hello Lynn and welcome to the board. M name is Dave and I used to service the R2000 series for Motorola's test equipment depot. As for your spectrum analyzer problem, I think you are correct with your diagnosis, keep looking at the scope/dvm board. As for the rest of the problems, I think most of th...
by DJP126
Mon Sep 26, 2016 10:15 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2001C HVPS question
Replies: 3
Views: 2322

Re: R2001C HVPS question

That LM7812 on your HVPS is NOT a factory mod. What are the symptoms of your problem with the analyzer?
by DJP126
Mon Sep 26, 2016 10:10 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2002B service manual wanted
Replies: 3
Views: 2434

Re: Motorola R2002B service manual wanted

If by the Dev measurement you mean in receive mode, look at the rcvr alignment, if you mean generate mode that would be the rf synth or possibly the scope/DVM control board.
by DJP126
Thu Sep 22, 2016 1:22 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: SYSTEMS SABER Tinny Transmit Audio
Replies: 1
Views: 2332

Re: SYSTEMS SABER Tinny Transmit Audio

Try swapping out the VCO or power amp modules.
by DJP126
Wed Sep 14, 2016 6:16 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Avcom PSA-65A calibration Spectrun analyzer
Replies: 4
Views: 3594

Re: Avcom PSA-65A calibration Spectrun analyzer

That happens when you Lazarus a four year old thread.
by DJP126
Tue Aug 30, 2016 11:41 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001-series CRT Filament Voltage
Replies: 6
Views: 3222

Re: Motorola R2001-series CRT Filament Voltage

Dave: I remembered the questions I wanted to ask you. 1. My R2001B constantly sounds the alarm beep in Wideband monitor mode as soon as the squelch opens. The deviation alarm is set to 99.9 kHz. I tried setting it to 00.0 kHz and that makes it sound all the time. I can't seem to turn it off complet...
by DJP126
Wed Aug 17, 2016 1:08 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2001-series CRT Filament Voltage
Replies: 6
Views: 3222

Re: Motorola R2001-series CRT Filament Voltage

Per the R2001A maintainence manual, the filament is 6.3 VAC. As the same tube was used in all models, it should be the same for all.
by DJP126
Sun Jul 31, 2016 5:04 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Motorola R2680
Replies: 2
Views: 2788

Re: Motorola R2680

I would suspect a problem in the RF I/O.
by DJP126
Sun May 22, 2016 6:30 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: R2600CCBS question
Replies: 6
Views: 3366

Re: R2600CCBS question

The R2600 series stores two calibration tables for front end temperature compensation. That is why you saw the warning about 20 minutes after calibrating. At the service center after all repairs and calibrations were completed, we would shut the unit down to allow it to get "cold" When we ...
by DJP126
Tue May 03, 2016 1:20 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Minitor III/IV - Need help on how to modify Band Splits
Replies: 4
Views: 2439

Re: Minitor III/IV - Need help on how to modify Band Splits

Movig from 465 to 440 won't happen. That's way too far off. You need a different rcvr board in that pager.
by DJP126
Sun Jan 03, 2016 8:13 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Rib difference.
Replies: 4
Views: 3142

Re: Rib difference.

As far as I know, they are just different revisions with the 'E' being the newer one. If you ever want to sell one, shoot me a message. -AJ That is correct. Motorola would change the part number suffix when there was a major engineering change. The difference here was the "E" version has ...
by DJP126
Sat Nov 21, 2015 11:18 am
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: What was your first /\/\otorola radio?
Replies: 124
Views: 38473

Re: What was your first /\/\otorola radio?

Back in the 70's I had joined a local Civil Defense agency (today they call it FEMA). I purchased a portable (HT200) and mobile (Mocom 35). Later on I discovered that I was the factory tech that originally tested that Mocom 35!

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