Amiga External Flicker Fixer on Amiga 4000?

[miggy]

Hi all,

Just a quick query.  I own an Amiga flicker fixer that use to be sold by Amigakit (http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=414).

I have tried this on a number of Amiga 4000 computers but it does not seem to work.  It does not produce a picture.  Yet on the product information it states that it will work on a 4000 model.

Has anyone else experienced this before?

[miggy]

Did you plug this adapter in while the computer was on??
The amiga 23 pin video is NOT hot plug device.
 
I have used several versions of this type of adapter, still work after all these years.
Maybe try again plug everything together with out power (if you're lucky)...
after a few moments warm up, it might come back up. The one I got from SoftHut took a couple of minutes to sync well.

Yes it was plugged in whilst computer was OFF.  

I must admit I remember seeing a version of the plug on the internet that was made for the 1200 only but looks the same.  Is it possible that this one is not for the 4000?  I did buy it second-hand.

[miggy]

I've just plugged it in now and turned machine on.  Both the lights on the flicker fixer are operational with the green (FF-Mode) light flickering.  The message on my LCD is "input not supported."  I will wait a few minutes and see how it goes.  

It usually works straight away with my 1200 even with this LCD.

Thank you for all your input and support so far Really much appreciated that we have such a nice community

[miggy]

I can report that I left it on for quite some time but did not show any picture.  Unsure why.

[miggy]

Thank you all again for your help and input

I do not have a VGA monitor at the moment to test it on.  I remember I use to own quite a few and some of them did not work on the A4000.  And these are the Commodore branded one's.  As I recall there may have been only a few models that work with the 4000?

I have given it some turns but it only says (FF-Mode) and (Bypass) on the unit so I didn't think that turning it will cause a picture to appear, rather an adjustment to an already existing picture.  Also I have turned it quite a number of times and it appears to keep turning reaching no end.

I am just booting it up without the hard drive connected so it should just be going to the bootup purple screen.  It's a PAL model.

Thanks everyone again, there are some really switched on people here!

[miggy]

When you suggest boot with no startup sequence are you just referring to booting to the usual startup purple screen with the floppy disk?

Thanks for inviting me along, I'm actually in Australia

[miggy]

No I can't SACC-guy, the screen is just blank - the 4000 has a hard-drive but I did not plug it in just so I  could see whether boot screen shows up.  From memory this hard-drive does not work anyway.

Maybe I do have a flicker fixer only?  I do not know actually but it seems to work well on all other amiga models.

[miggy]

Yes it works on the 1200.

Again, I think maybe I need to keep moving that adjustment screw and see.  The screw unit just needs some soldering work as it is held with some electrical tape.  So it is hard to keep adjusting it.

The 4000 has worked with an old school monitor.  I have also tried this flicker fixer unit on other 4000's and still it does not work.

[miggy]

I have attached a pic of the unit.  Is it a scandoubler also?