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Author Topic: WTT: Have NTSC A1000, want PAL A1000!  (Read 1745 times)

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Offline Zac67

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Re: WTT: Have NTSC A1000, want PAL A1000!
« on: March 27, 2009, 07:05:38 PM »
simple PAL mod:
- PAL Agnus
- stepup transformer

more sophisticated:
- 220V PSU
- PAL RF modulator (if required)

complete (for genlock/A2024 compatibility):
- 28.375 MHz clock generator

A PLCC Agnus (square) from an A500 or A2000 rev 4.1+ does NOT fit, only a DIP type (lengthy) from A1000 or A2000 rev 4.0.

There's no way to switch the OCS Agnus by software; you can at best 'emulate' PAL for full software compatibility but will never see the lower part.
 

Offline Zac67

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Re: WTT: Have NTSC A1000, want PAL A1000!
« Reply #1 on: March 27, 2009, 09:01:41 PM »
I've got a mostly dead A2000 rev 4.0 that might donate its Agnus if you're in dire need. :-)
 

Offline Zac67

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Re: WTT: Have NTSC A1000, want PAL A1000!
« Reply #2 on: April 08, 2009, 09:18:47 PM »
OK,

got it out and verified that's it's actually a 8367. Since the machine is pretty dead (at least the PSU) I've got no idea whether the Agnus is still alive.
If I manage I'll package it securely tomorrow - don't think I can cram it into a 1.25€ envelope, so that probably makes it 3€ for postage to UK. I'll keep you posted.  :-)

Funny episode: that A2000 I rescued over ten years ago out of the trash container and after testing it briefly (pretty much dead) it got stored away. Just today when I opened it I found a warranty sticker from the shop I worked for until 15 years ago - with my mark on it. Obviously that machine had once been repaired by me... :lol:
 

Offline Zac67

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Re: WTT: Have NTSC A1000, want PAL A1000!
« Reply #3 on: April 25, 2009, 10:50:58 PM »
Money was extremely tight back in those days while studying. Working as a technican enhanced that quite a bit - to a point when I quit studying and started working full time. Working with this really was fun at that time as long as you got the spare parts (monitors and printer parts were always a bit difficult) - today it's next to impossible; I've somewhat mastered SMD but BGAs are far beyond me...

BTT:
:-( RTC has nothing to do with video out...
Is there any floppy activity? Just no video? Any display from the monitor whether sync's coming in?