Search found 12 matches

by ka3yan
Thu Mar 16, 2017 12:28 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

The only thing aside from burn-in, is a missing line of display at the top. This isn't a big deal, but you did mention "any shorts". I'm not sure what's causing the missing line, but I assumed it was a problem where the display is joined to the PCB. Thanks for the info on Capetronics. I'll...
by ka3yan
Wed Mar 08, 2017 11:51 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

So no one thinks I'm ungrateful, I did speak to KE7JFF offline. Still no joy finding an inexpensive non-burned in screen, but he thinks he might have a lead.

I'm still looking for any manuals for the COM-120B.
by ka3yan
Wed Mar 08, 2017 11:45 am
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR COM-120B Generator Mode Problem
Replies: 28
Views: 9292

Re: IFR COM-120B Generator Mode Problem

Thanks fellows. I've ordered the part from China for around $70 US. I probably won't see it for a month, so I went ahead and put the COM-120B back together and have been running from DC power. Great piece of test equipment by the way. I'd love to have the SSB filter, but I'm pretty darn happy with t...
by ka3yan
Sat Mar 04, 2017 3:45 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR COM-120B Generator Mode Problem
Replies: 28
Views: 9292

Re: IFR COM-120B Generator Mode Problem

I'm curious if the Vicor VI-262-EU DC-DC converter is a common failure mode for the COM-120B PSU? I have a relatively new (to me) COM-120B that I purchased from eBay. Of course everything worked for about an hour and then the AC went out. The unit powers on fine from the 12VDC input as well as from ...
by ka3yan
Thu Feb 23, 2017 9:33 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

I know there's been talk of the Planar EL display in the COM-120B. Is there any replacement available? Also, what is the exact part number for the display? I saw someone mention the EL569.400 for the COM-120A, but I don't know if that's the same for the COM-120B. I'm also curious about how to backup...
by ka3yan
Mon Jan 09, 2017 8:16 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

So I have some rather bad news about the PTA in my 1600S. The main detector diode is fractured at one end: https://drive.google.com/open?id=0B8S3fKBEkXskb1o3ZTVfNmNTN0E Sorry that it appears upside down. You can see one end (connected to an axial resistor) is slanted. Strangely the diode appears to ...
by ka3yan
Tue Jan 03, 2017 7:47 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

Thanks jry. I'll follow your instructions and report back.

Brad
by ka3yan
Mon Jan 02, 2017 8:38 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

Here is a photo of inside the PTA: https://drive.google.com/open?id=0B8S3fKBEkXskb0R4aGhMWUV6bm8 And the lid: https://drive.google.com/open?id=0B8S3fKBEkXskMFhEaEdIOFR2eUU There are no electrolytic caps, so I don't know where the corrosion would come from. Also, the PTA is sealed. I did reflow the s...
by ka3yan
Fri Dec 30, 2016 4:59 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

jry, thank you for the feedback on the upgrade kit for changing out the CRT to LCD. If Cobham has the kits, they're reserved for TS-4317 spares and not available to the consumer. Cobham flatly stated that they no longer support the 1600S in any way. So my next dilemma is that it appears my Power Ter...
by ka3yan
Fri Dec 23, 2016 11:04 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

So at work we have two of the TS-4317 test sets. This is the military version of the IFR 1600S. One of them has an LCD display and one has a CRT display. Has anyone here successfully integrated an LCD display in the 1600S? If yes, what model display was used and was there anything special that neede...
by ka3yan
Thu Dec 22, 2016 8:58 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

Wowbagger, et al., I have an opportunity to purchase an IFR 1600S at a fair price ($900 + shipping), but it has a failure of #17 on the self test: Analyzer Level. Any idea what may cause this failure and if it could be fixed with a calibration of the instrument? I know that Cobham doesn't support th...
by ka3yan
Wed Dec 21, 2016 7:18 am
Forum: Test Equipment & RF Equipment Alignment
Topic: Aeroflex (IFR) Questions
Replies: 629
Views: 308120

Re: Aeroflex (IFR) Questions

4. Where can I get EasySpan/EasySweep software from? Since it's an option, do I have to pay for it? From sales, and yes. (point of interest: Not long ago I helped them do the needed code archeology to dig those files up.) I just contacted Cobham and was told by Lori C. that they no longer support t...

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