Amiga 500 Rev6A from NTSC to PAL

chapas · 12 May 2014, 00:38

Hello,
i got a NTSC Amiga 500 Rev.6A here in Europe.

What do i need to change to make it PAL? Apart from the 110V PSU, the crystal/oscillator, AGNUS? Anything else?

Does it worth the change?

The Agnus is burnt, i have replaced with a PAL Agnus and it's image it's OK. Shall i get a NTCS Agnus chip?

Thanks,
Chapas

alexh · 12 May 2014, 01:45

Depends if you want to make it work with an NTSC TV or just run at 60hz.

If it is the latter then just one solder / jumper JP4. If you connect via A520 to a TV you'll get black and white picture.

If is is the former you have to do quite a bit of work, change crystals etc.

Jope · 12 May 2014, 20:52

The main crystal + the jumper JP4 should be enough for a Rev6 A500.

chapas · 13 May 2014, 13:24

Thanks for both answers.

What do i need to do with JP4?

alexh · 14 May 2014, 12:35

In one position the Agnus is PAL in the other in it NTSC.

chapas · 15 May 2014, 00:04

Checked the service manual for JP4, thanks for your help.

By the way (please don't answer: "use a AT/ATX PSU"), any idea how to convert the PSU from 110V to 220V?

Supamax · 15 May 2014, 00:22

Quote:

Originally Posted by chapas

any idea how to convert the PSU from 110V to 220V?

I don't think it's possible. You would need to change the coils.
It would be easier to buy an Amiga's 220V (european) PSU from eBay...

prowler · 15 May 2014, 00:28

Quote:

Originally Posted by chapas

By the way, any idea how to convert the PSU from 110V to 220V?

You will need a step-down transformer or variac to make use of that 110V PSU.

chapas · 15 May 2014, 11:53

Quote:

Originally Posted by prowler

You will need a step-down transformer or variac to make use of that 110V PSU.

yes that would work too.

What I mean is inside modifications, like transformer replacement.

12 May 2014, 00:38	#1
chapas Registered User Join Date: Sep 2012 Location: Lisbon/Portugal Posts: 17	Amiga 500 Rev6A from NTSC to PAL Hello, i got a NTSC Amiga 500 Rev.6A here in Europe. What do i need to change to make it PAL? Apart from the 110V PSU, the crystal/oscillator, AGNUS? Anything else? Does it worth the change? The Agnus is burnt, i have replaced with a PAL Agnus and it's image it's OK. Shall i get a NTCS Agnus chip? Thanks, Chapas

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12 May 2014, 01:45	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,350	Depends if you want to make it work with an NTSC TV or just run at 60hz. If it is the latter then just one solder / jumper JP4. If you connect via A520 to a TV you'll get black and white picture. If is is the former you have to do quite a bit of work, change crystals etc.

12 May 2014, 20:52	#3
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,862	The main crystal + the jumper JP4 should be enough for a Rev6 A500.

13 May 2014, 13:24	#4
chapas Registered User Join Date: Sep 2012 Location: Lisbon/Portugal Posts: 17	Thanks for both answers. What do i need to do with JP4?

14 May 2014, 12:35	#5
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,350	In one position the Agnus is PAL in the other in it NTSC.

15 May 2014, 00:04	#6
chapas Registered User Join Date: Sep 2012 Location: Lisbon/Portugal Posts: 17	Checked the service manual for JP4, thanks for your help. By the way (please don't answer: "use a AT/ATX PSU"), any idea how to convert the PSU from 110V to 220V?

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