No video on power up on A600

[Zetr0]

jbenam

I am wondering if its possible that your amiga could be an NTSC version and hence why its not working properly with your monitor.... hmmmmm

[jbenam]

jbenam

I am wondering if its possible that your amiga could be an NTSC version and hence why its not working properly with your monitor.... hmmmmm

It is an A600 made in the Philippines, and it is marked as an "A600 IT" on the bottom of it. Having bought it years ago in a country where the TV standard is PAL, it's probably a PAL one Also I'm pretty sure a lot of my past TVs were PAL only. Can't be certain of it, though.

BTW, I don't have CRT TVs or monitors anymore, but only LCD ones...
Maybe the Amigas have problems with LCDs I'm not aware of?

[Teho]

I know that my LCD monitor does not support standard PAL TV resolution anyway. If I try that in WinUAE and go fullscreen, my monitor just goes black. Could be your problem right there.

[jbenam]

I know that my LCD monitor does not support standard PAL TV resolution anyway. If I try that in WinUAE and go fullscreen, my monitor just goes black. Could be your problem right there.

Sadly, my multi-standard LCD does exactly the same. And during this week there's not a single shop opened which sells contact cleaner. Oh well, I believe I'll have to wait and then see what happens with a LOT of contact cleaner.

Thanks for the suggestion anyway

[Zetr0]

@jbenam

what make / model of LCD TV do you have? does it have an RGB SCART input as well as composite?

does it have a 15KHz VGA compatible input?

tap up the LCD TV model here and i can have a lookie around for you.

[jbenam]

@jbenam

what make / model of LCD TV do you have? does it have an RGB SCART input as well as composite?

does it have a 15KHz VGA compatible input?

tap up the LCD TV model here and i can have a lookie around for you.

Thanks, it's very kind of you. Yes, all of them have an RGB SCART and Composite.

I don't know about the VGA frequency, sadly :/

The last one I used was a Samsung SM225MW. When the A600 is powered on, it does a bit of something that looks like static on the screen and then nothing.

[jbenam]

Sorry for double-posting, but I've got some news.

I've got a hold of an old RGB-to-SCART cable... And with that, the Amiga works great. In the worst case, I'll have to build one and stick with SCART (even if I would REALLY prefer Composite...).

I even thought of buying another A600 motherboard, but seeing my Amiga only has a small issue (the component-out) it doesn't seem the case to do it.

I've tried to clean the contacts again and also resoldering some connections. Still nothing. What could ever be that makes the RGB cable work, but not the
Composite-out?

Another way to resolve this issue would be using the RGB port, and creating a D-Sub to Composite cable.
Is there a way to build a RGB-to-yellow composite? Someone knows where to find the necessary pinouts?

BTW, the yellow always-on DISK led was caused by a bridge created by the floppy drive on some ICs under it :P

Thanks again for your time and efforts