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IFR-1900 Display suddenly inverted and reversed

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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SuperLid
New User
Posts: 2
Joined: Mon Nov 04, 2013 3:35 pm

IFR-1900 Display suddenly inverted and reversed

Postby SuperLid » Sun Feb 09, 2020 8:25 am

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 normal. I have seen and heard about this issue before. Anyone know cause and fix?

Thanks,

SL

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fineshot1
Posts: 1051
Joined: Wed Oct 12, 2005 5:13 am

Re: IFR-1900 Display suddenly inverted and reversed

Postby fineshot1 » Thu Feb 13, 2020 6:20 am

i have had this happen also and was told some where on the back of the TFT display are some configuration
jumpers that sometimes oxidize over a period of time. After I pulled off the jumpers and re-installed them
in the same place all came back to order with the display. Doing this excersize removes some of the oxidation
on these jumpers and cleans the connection. Hope this helps you and good luck

PS - The 1600 and 1900 with this TFT display suffer the same issue sometimes
fineshot1
NJ USA

jry
Posts: 413
Joined: Fri Feb 06, 2004 3:14 pm

Re: IFR-1900 Display suddenly inverted and reversed

Postby jry » Thu Feb 13, 2020 10:13 am

com-120c uses the same display setup as well.

Usually RTV the connectors as well to hold them in place.


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