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My IC-756 (non PRO) has developed the dreaded blue screen syndrome.
Has anyone had to replace their screen recently? I have trawled the internet with very limited success, until today. There is an interesting discussion on QRZ forums where a number of amateurs are using graphic displays from Winstar and New Haven. These displays while not a direct drop in replacement, seem to be providing the answer to a problem that has been going on from when these sets were near new.
The QRZ topic can be found here: <!-- m --><a class="postlink" href="https://forums.qrz.com/index.php?threads/ic-756-non-pro-display-update-project.494437/">https://forums.qrz.com/index.php?thread ... ct.494437/</a><!-- m -->
I would be interested in hearing from anyone who has completed the screen replacement using one of these displays.
73
Ron
VK4BVI
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Ron
Check out
http://www.pa7fa.nl/PA7FA/Introduction.html as I suspect they used the display below.....
According to
https://www.youtube.com/watch?v=_XYL4ePBqhI
ICOM 756 no PRO. LCD tuning replacement
LCD typ; - WINSTAR WG 320240 TMI -TZ -. SP9QQ 73!
Make sure you visit :
Info ---
http://sp-hm.pl/thread-902.html -----
Data sheet PDF :
http://sp-hm.pl/attachment.php?aid=3427
and it just so happens that there is an Aussie supplier that might be able to help:
http://www.crestcomponents.com.au/wg3202...-p-76.html
Certainly worth a phone call..
73 Doug VK4ADC
Doug VK4ADC @ QG62LG51
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Doug
Thanks for the reply.
I have sent an email to Crest, just waiting on a reply. Did see the forum thread you linked, my translation was very loose English, but enough to make sense of it.
73
Ron
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Rockby Electronics has this on special for the next few days:
Their part number 41062:
https://www.rockby.com.au/catresultsSql_...k_no=41062
Large Graphic 320x240 LED Backlit LCD
Device:WG320240C-TMI-TZ
Vdd-Vss:5V
Function: Graphic LCD 320x 240 Dots
* SED 1335 Controller + SRAM
* STN Transmissive Negative,Blue
Backlight : LED-,White
Size(LHD): 154 x 120 x15.6
View Area(mm):120.14 x 92.14
Manufacturer:Winstar
Stock No:41062 Large Graphic 320x240 LED Backlit LCD
1 off $15.000 + P/P
At this price it is probably worthwhile grabbing one to try.....
Doug VK4ADC @ QG62LG51
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Thanks for the link.
I did order the version without the on-board controller, same as that being used by other amateurs who have successfully replaced their screens. Some U.S. amateurs have used a model made by New Haven with success.
I purposely ordered the version without the controller, as I am not across the black magic of LCD graphic displays and associated dark arts. :?
Ron
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I know this is a long shot but....
I am in the process on changing the screen in my IC-756, and I need to replace 2 flat flexible cables being -
The cable from the sub logic board to the main unit, and the flexible cable from the main board to the display unit. Both have suspect connection pads.
Does anyone know of the availability of these cables, or know someone who may be dismantling IC756?
Cheers
Ron
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Hello all
Well the screen replacement went....ok.
While reassembling the unit I have had an 'oh sh!t' moment. It appears I have taken out the CMOS graphic controller chip.
The screen hhas the blue background raster, with a white square (as is normal), but no other information.
Are there any kind hearted folk out there that maybe able to assist in replacing the 100 pin SMD chip? Please.
I can obtain another chip (no thanks to Icom), but removing and resoldering this chip is way above my capabilities.
Any help would be very much appreciated.
Contact can be made through the forum or at 'my callsign'@wia.org.au
Thanks
Ron
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Ron
Oooooooooooooooooooooooooooooooops ! (That means a big oops
)
Power on while partially reassembling ??
Most of the people with solder rework stations may be able to help, me also if you can't find someone closer, though I haven't done up around the 100 pin variety. (and I should have mentioned: steady hands...)
Doug
Doug VK4ADC @ QG62LG51
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I had almost forgotten that I started this thread.
So here is the update in a nutshell.
Radio is back in the shack and working like a new one!
Had the chip replaced by a company in Bowen Hills who repair studio and broadcast equipment.
Screen replaced after some mucking around, and works perfectly.
One happy camper
.
Case closed.
Cheers
Ron
VK4BVI
