Flat screen on a 3000

[moominpapa]

I have an a3000 and I would like to use it with my pc's flat screen monitor that has the standard connector (VGA [D-sub 15pin]).  All I get is a message saying the "signal is out of range" on the monitor.
I assume this has something to do with the frequency of the a 3000 display, is there any way of changing this?

The a3000 works fine on some older crt monitors ive got lying around.  Is there a way to convert the output so i can display it on a tv or my old philips amiga monitor, with composite video in?

Thanks alot

[adonay]

some tft monitors are exstremly picky about the right hertz i have a cheap tft that do have problems with everything not 60 or 75 hertz and wont show annything below 800x640 and nothing above 1024x768 so you might just try to make a sharper screen mode that will most likely do the trick

[glitch]

You did flip the de-interlace switch beside the 15pin connector right?  As well, there is a tiny hole next to that containing a potentiometer to adjust the display timing.  Give that a few turns to the left or right when the monitor is plugged in.

Good luck!

[Zac67]

Adjusting the flicker fixer timing won't do the trick...
Are you running PAL? Then your TFT doesn't seem to sync down to 50 Hz.
Try running NTSC, that should work for most monitors (if it can display standard VGA) but you may have problems adjusting the borders correctly. And don't expect a 100% sharp picture as Amy won't take you to the TFT's native resolution...

[beller]

I'm using a Samsung 19" flat panel with my A3000.  Works dandy!  I'm using NTSC high-res.  I've also used the monitor with a scandouble and an A600 which worked fine. Tried the scandoubler with my  A1200 and it was out of sync (though I haven't tried it since I got the machine fully set-up.)

Some monitors work better than others it appears.

[icbrkr]

I'm using my A3000 w/Cybervision card on a 17" Acer TFT without issues.  I do know that the A1200's DBLNTSC mode syncs on it just fine.  Luckily with the card I can adjust to the default resolution (well.. close enough) so it doesn't look funky

[moominpapa]

It must just be my monitor, ive twiddled the nobs on the back of the 3000 and nothing has helped, though flicking the switch did cause a flicker on the monitor, no screen was displayed.
The monitor was a £100 special 18 months ago so its probably too basic.
Thanks for your help

[patrik]

@moominpapa:

Many TFTs need atleast a 31.5kHz/56Hz screenmode. If you run PAL you will get 31.5/50Hz and if you run NTSC you will get 31.5kHz/60Hz. So connect a working monitor to it, set workbench to run in NTSC and then connect your TFT.

Btw, after turning that little screw, the image can be rather distorted, as it is the adjustment for the internal flickerfixer. Ie, you might need to turn it a bit to get a good image again (preferably after the computer has warmed up).


/Patrik

[moominpapa]

Do i change the screen mode of the amiga by holding both buttons on startup and choosing the option?  Will the setting stay that way while i unplug the amiga and lug it back to my tft?
Thanks

[Zac67]

yes and yes - that should work, at least with the Workbench screen

[moominpapa]

Holding down both mouse buttons did not bring up the same menu as in the a1200.  I only got the boot options, not the chipset options.

So i bit the bullet and opened up the case (15 years old and the warranty seals were still intact) and found the jumper for the display (ntsc and pal).  I changed this to ntsc and now it works on my monitor completely in games and workbench, at several resolutions.

I am amazed at how much better the a3000 runs games.  At last wing commander is playable, all ive got to do now is install a  better hard disk.

Thanks for everyones help.

[Tomas]

So i bit the bullet and opened up the case (15 years old and the warranty seals were still intact) and found the jumper for the display (ntsc and pal). I changed this to ntsc and now it works on my monitor completely in games and workbench, at several resolutions.

Use that opportunity to check the battery as well.. Most batteries have started leaking by now, which sadly has killed quite a few Amigas.  :-(

I believe you can get replacement batteries for cheap and it should not require any advanced soldering skills.

[moominpapa]

I believe you can get replacement batteries for cheap and it should not require any advanced soldering skills.

I did notice the battery was slightly corroded and is a little bit leeky.  I will give that one some thought.

[tonyvdb]

Dont just give it some thought, if you do not replace it it will perminatly dammage your mb and you will not be able to repair it.
At the very least remove it compleatly for now (you dont need it unless you like the time and date to be right)