Hi all

My Amigas have really f me off. One has dodgy gfx and booting issues. The one that was working has now lost sound. if I turn my amp up full I can just about hear it. Guess I be looking for a cheap a1200 on ebay or if anyone has one for a good price let me know. Nobody local to me to get it repaired.

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A1200 ACA1232 128MB Indivison MkIICr
Elbox empty Power Tower
RPi3 Emulating C64 ZX Atari PS BBC
Wii with Amiga emulation
Vampire v4 SA

@g01df1sh

No sound issues are usually because of capasitors.

@utri007

Half Amiga I have got the one with iffy gfx working. Booting issue was user error trying to boot a OS3.9 2.5" ide hard drive with 3.0 roms installed doh. Changed them for the one's from the Amiga with no sound so now I have sound but have faint lines down the screen I'm using a rgb adapter on a Benq monitor.

see link for image of bad gfx

http://mendit4u.webs.com/apps/photos/photo?photoid=204096308

its more noticeable on black backgrounds

Last edited by g01df1sh on 31-May-2017 at 08:54 PM.
Last edited by g01df1sh on 31-May-2017 at 08:40 PM.

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A1200 ACA1232 128MB Indivison MkIICr
Elbox empty Power Tower
RPi3 Emulating C64 ZX Atari PS BBC
Wii with Amiga emulation
Vampire v4 SA

@g01df1sh

Recap them. One of my 1200s (my beloved, the one I bought in 1993 or so) has dodgy sound that crackles and is quiet. I'm 100% certain it would be fixed by recapping. I seem to remember reading that the caps in the 1200 are especially prone to failing.

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Blog

@Aslak3

Might try one of the re cappers on eBay. Can anyone recommend a good guy

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A1200 ACA1232 128MB Indivison MkIICr
Elbox empty Power Tower
RPi3 Emulating C64 ZX Atari PS BBC
Wii with Amiga emulation
Vampire v4 SA

@g01df1sh

I hade same problem, in the end it turns out that problems was fixable from monitor settings. Pixel clock?? I don't remember.

Do you have timing fixes made? Capasitors changed?

@g01df1sh
Rossel Crowell part of the Nwag (north west amiga group, yes were still going!) offers recapping

https://www.facebook.com/russell.cowell.52?fref=ufi

Last edited by amigang on 31-May-2017 at 09:52 PM.

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AmigaNG, YouTube, LeaveReality Studio

@utri007

Not sure if timing fixes have been done caps most likely not. I brought them of ebay so dont know the history.

_________________
A1200 ACA1232 128MB Indivison MkIICr
Elbox empty Power Tower
RPi3 Emulating C64 ZX Atari PS BBC
Wii with Amiga emulation
Vampire v4 SA

@g01df1sh
Rule 1. Consider any electrolytic caps in regularly used equipment dead after 15 years old and replace them. Especially true in hot power supplys.

Rule 2. Re-read Rule 1. :)

The exception being those really large ones in power supplies, they can last twice as long.

If DIY, then be careful not to damage traces. Youtube has good how-tos

Good luck!

Plaz

@g01df1sh

Well, if you are going to ship them after all, you might as well send them to me.

@g01df1sh

Just over a week ago my Picasso IV went on the blink. No signal to monitor. Still need to plug my A4000 into a TV to check it out.