Search found 4 matches

by SuperLid
Sun Feb 23, 2020 7:58 am
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR-1900 Display suddenly inverted and reversed
Replies: 6
Views: 10912

Re: IFR-1900 Display suddenly inverted and reversed

I found no configurable jumpers at all on the display. There is a large ribbon cable and a small ZIF header cable. I reseated both, and the display corrected. Not sure if it long term, time will tell.

Thanks to all that replied.
by SuperLid
Sat Feb 22, 2020 6:32 pm
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR-1900 Display suddenly inverted and reversed
Replies: 6
Views: 10912

Re: IFR-1900 Display suddenly inverted and reversed

It fixed itself and worked for a few weeks. It happened again today. I will have a look and see if I can find these jumpers and report my findings.

Thanks!
by SuperLid
Sun Feb 09, 2020 8:25 am
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR-1900 Display suddenly inverted and reversed
Replies: 6
Views: 10912

IFR-1900 Display suddenly inverted and reversed

Used it all day and shut it down normally. Next day, powered it up and the display came up upside down and a mirror image.

Tried the usual fixes...factory default reset, power cycling, let it sit a few hours disconnected from power. No go. Then many hours later, I turned it on and it went back to ...
by SuperLid
Fri Sep 07, 2018 2:55 am
Forum: Test Equipment & RF Equipment Alignment
Topic: IFR-1900 Receive IF Module
Replies: 3
Views: 10091

IFR-1900 Receive IF Module

I have an analyzer that exhibits low levels. The problem has been isolated to the RX IF block. With no schematics and no support from the manufacturer, I am on my own and going nowhere fast.

Anyone have experience troubleshooting this module at component level?

Thanks!

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