A690 CD-ROM for the A500 - ROM? - Page 2

frantic · 14 June 2007, 21:57

Jope: thanks a lot! I will try this. However, I'll be away for two weeks, so it will take some time, but by then I will get back for sure.

Thanks for making things clearer.

//FTC

alexh · 15 June 2007, 00:11

The battery is for some sort of NVRAM, possibly for settings or save games.

Paul_s · 15 June 2007, 00:12

Hope you get her back up and running again. Wonder how many units they made with the earlier board/690 branding... nice for the collection anyway

jimbo100 · 31 August 2007, 14:46

Quote:

Originally Posted by frantic

Alexh: Sorry if I am dumb now, but... As I understood things, the ROM in the A690 I have is a battery backed up one, and now gone. Hard to read the ROM contents then. That's why I am looking for someone being able to read out the A570 ROM (which I do not have).

Did you get this working?

frantic · 31 August 2007, 18:32

Unfortunately not, but only because I haven't had the time to get into it. Vacation over and blah blah..

(Anyway, I suspect the logical conclusion then is that it is broken in some way, since people here pointed out that a drained battery was not a plausible explanation. ..and I'm no good at fixing hardware stuff.)

Anyway, thanks for showing interest in this issue.

Amiga-Digital · 08 September 2007, 01:08

HI

i can help ypu with the data of the epromm that are use in the A690 cd-drive
i have sell myn A690 drive but for that i sell it i have read the eprom and save it to myn harddrive if you need the bin file leave a mail to me i can send it to you , Cheers

gold94 · 02 February 2021, 08:51

Quote:

Originally Posted by Amiga-Digital

HI

i can help ypu with the data of the epromm that are use in the A690 cd-drive
i have sell myn A690 drive but for that i sell it i have read the eprom and save it to myn harddrive if you need the bin file leave a mail to me i can send it to you , Cheers

Hello, I know resuming a discussion from 2007 is not easy, but I have no choice. Do you still have the A690 ROM image file? because I have an A690 with a possibly corrupt eprom.

alexh · 02 February 2021, 11:16

The A690 is just an A570 with a different badge and there are lots of dumps of the EPROM from the A570. Don't forget to dump yours first or use a different EPROM

gold94 · 02 February 2021, 13:14

Quote:

Originally Posted by alexh

The A690 is just an A570 with a different badge and there are lots of dumps of the EPROM from the A570. Don't forget to dump yours first or use a different EPROM

thank you for your answer I will try to find a ROM image of A570

gold94 · 03 February 2021, 14:22

Quote:

Originally Posted by alexh

The A690 is just an A570 with a different badge and there are lots of dumps of the EPROM from the A570. Don't forget to dump yours first or use a different EPROM

hi,

I come back to you, because I find tons of Amiga kickstarts the CDTV and CD32 ROMs, but nothing on the A570 or A690, would you have a link where I could find this.

Thierry

alexh · 04 February 2021, 20:56

It is against forum rules to tell you where to get it from without paying for it as it is still under license and you can still buy a license for the data from Cloanto today.

Here is there list of all ROMs Cloanto license :

https://cloanto.com/amiga/roms/

This is the one you want :

Code:

A-570 Extended ROM (v. 2.30)	May 1992	02.030	ROM	391298-01

If you do find the data you want to burn it to a single 16-bit 27C400 EPROM (or equivalent) you cannot use CDTV ROMs as they use two 8-bit ROMs

Because there was only one ROM for A570 and it is a MASK ROM (and they almost never go wrong) no-one sells EPROMs for the A570/A690 because there is absolutely zero demand.

As I said previously in this thread. The battery does NOT power the ROM and it cannot loose it's contents if the battery dies. I very much doubt you have a broken ROM. There is a very slim chance as early A690's had UV EPROMs they can loose their contents if exposed to sunlight but very unusual.

Once you have the data I am sure anyone selling Kickstart ROMs can make you one. Choose someone local as they may need to make two attempts (byte swap)

gold94 · 05 February 2021, 15:11

Hello, Thank you for your answer, yes indeed I do not think that the eprom is a problem, I think more about a problem of PCB because of the damage of the battery but I have checked everything and I do not understand why it works well except the screen with the CDTV logo which remains a black screen.

alexh · 17 March 2021, 00:02

I've posted what is believed to be the ROM of A690 in the Zone. I can't confirm it really is, just that it prints 2.0 (rather than 2.7 or 2.30 of A570).

04 February 2021, 20:56	#31
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,342	It is against forum rules to tell you where to get it from without paying for it as it is still under license and you can still buy a license for the data from Cloanto today. Here is there list of all ROMs Cloanto license : https://cloanto.com/amiga/roms/ This is the one you want : Code: A-570 Extended ROM (v. 2.30) May 1992 02.030 ROM 391298-01 If you do find the data you want to burn it to a single 16-bit 27C400 EPROM (or equivalent) you cannot use CDTV ROMs as they use two 8-bit ROMs Because there was only one ROM for A570 and it is a MASK ROM (and they almost never go wrong) no-one sells EPROMs for the A570/A690 because there is absolutely zero demand. As I said previously in this thread. The battery does NOT power the ROM and it cannot loose it's contents if the battery dies. I very much doubt you have a broken ROM. There is a very slim chance as early A690's had UV EPROMs they can loose their contents if exposed to sunlight but very unusual. Once you have the data I am sure anyone selling Kickstart ROMs can make you one. Choose someone local as they may need to make two attempts (byte swap) Last edited by alexh; 04 February 2021 at 21:08.

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14 June 2007, 21:57	#21
frantic Registered User Join Date: Feb 2007 Location: Lund / Sweden Posts: 19	Jope: thanks a lot! I will try this. However, I'll be away for two weeks, so it will take some time, but by then I will get back for sure. Thanks for making things clearer. //FTC

15 June 2007, 00:11	#22
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,342	The battery is for some sort of NVRAM, possibly for settings or save games.

15 June 2007, 00:12	#23
Paul_s Registered User Join Date: Nov 2006 Location: Amigaville Age: 46 Posts: 3,334	Hope you get her back up and running again. Wonder how many units they made with the earlier board/690 branding... nice for the collection anyway

31 August 2007, 18:32	#25
frantic Registered User Join Date: Feb 2007 Location: Lund / Sweden Posts: 19	Unfortunately not, but only because I haven't had the time to get into it. Vacation over and blah blah.. (Anyway, I suspect the logical conclusion then is that it is broken in some way, since people here pointed out that a drained battery was not a plausible explanation. ..and I'm no good at fixing hardware stuff.) Anyway, thanks for showing interest in this issue.

08 September 2007, 01:08	#26
Amiga-Digital Registered User Join Date: Sep 2007 Location: Deventer/Netherlands Age: 53 Posts: 103	HI i can help ypu with the data of the epromm that are use in the A690 cd-drive i have sell myn A690 drive but for that i sell it i have read the eprom and save it to myn harddrive if you need the bin file leave a mail to me i can send it to you , Cheers

02 February 2021, 11:16	#28
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,342	The A690 is just an A570 with a different badge and there are lots of dumps of the EPROM from the A570. Don't forget to dump yours first or use a different EPROM

05 February 2021, 15:11	#32
gold94 Registered User Join Date: Sep 2020 Location: france Posts: 6	Hello, Thank you for your answer, yes indeed I do not think that the eprom is a problem, I think more about a problem of PCB because of the damage of the battery but I have checked everything and I do not understand why it works well except the screen with the CDTV logo which remains a black screen.

17 March 2021, 00:02	#33
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,342	I've posted what is believed to be the ROM of A690 in the Zone. I can't confirm it really is, just that it prints 2.0 (rather than 2.7 or 2.30 of A570).

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