A600 color bands on composite problem

Amiga1992 · 23 October 2013, 21:27

I can't seem to find the thread related to color banding on A600s related to the PCMCIA port and its fix. Anybody has it?

Anyway, it turns out my ACA620 accelerator was faulty and I just received its replacement. Everything is running fine, however I get these lines of color but they happen EVEN if I have the PCMCIA device unplugged. Could it be related to any of my other hardware (sampler or MIDI Interface) or the ACA620 itself?

Amiga1992 · 23 October 2013, 21:34

Here's a video of the issue. I unplugged EVERYTHING from the A600 except the mouse and joystick and it's still doing it. You can see it flash at the opening screen and then constantly on the play screen.

[ Show youtube player ]

(and confirmed tested on RGB connection with no problems)

cpiac64 · 23 October 2013, 22:29

change scart cable or monitor tv for verify

Amiga1992 · 24 October 2013, 00:13

That's not it. There is a problem with some A600s and PCMCIA ports. Something needs to be changed for them to not give this problem on composite video. If you don't know the problem, please don't take wild guesses.

Someone in this forum found this and found a fix, I just can't find the thread.

The odd thing is, though, that I thought was related to the PCMCIA access, and now the machine is giving out the problem even with nothing on the PCMCIA port.

[edit]
Found the problem, jim,bob fixed it:
http://eab.abime.net/showthread.php?t=27703&page=2
Post #24.

Now, it seems this is not just related to the PCMCIA port.
Also: my machine is a REV 1.3 motherbaord and not 1.5. So I presume this bug came from factory. But why did I never notice it until now? To be fair, I used that machine most of its life through RGB so maybe it's that.

roy bates · 24 October 2013, 10:37

whats the area around he cxa1145m look like on yours?

have you noticed the lines appear when the disk is being accessed or no?

alexh · 24 October 2013, 11:01

This happens on all of my v1.3 A600's. As said there is a missing hot-fix. But I just use an RGB cable instead.

Amiga1992 · 24 October 2013, 13:58

So I am guessing I never realized this because I used this mostly on an RGB monitor.
Here's how it looks after d0pefish cleaned it up:

Clearly NO fix! I'll have to do this! I need composite for my tiny gig monitor.
I Just thought this happened ONLY on PCMCIA access. I guess I was wrong.

Thanks guys!

23 October 2013, 21:27	#1
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	A600 color bands on composite problem I can't seem to find the thread related to color banding on A600s related to the PCMCIA port and its fix. Anybody has it? Anyway, it turns out my ACA620 accelerator was faulty and I just received its replacement. Everything is running fine, however I get these lines of color but they happen EVEN if I have the PCMCIA device unplugged. Could it be related to any of my other hardware (sampler or MIDI Interface) or the ACA620 itself?

24 October 2013, 00:13	#4
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	That's not it. There is a problem with some A600s and PCMCIA ports. Something needs to be changed for them to not give this problem on composite video. If you don't know the problem, please don't take wild guesses. Someone in this forum found this and found a fix, I just can't find the thread. The odd thing is, though, that I thought was related to the PCMCIA access, and now the machine is giving out the problem even with nothing on the PCMCIA port. [edit] Found the problem, jim,bob fixed it: http://eab.abime.net/showthread.php?t=27703&page=2 Post #24. Now, it seems this is not just related to the PCMCIA port. Also: my machine is a REV 1.3 motherbaord and not 1.5. So I presume this bug came from factory. But why did I never notice it until now? To be fair, I used that machine most of its life through RGB so maybe it's that. Last edited by Amiga1992; 24 October 2013 at 00:18.

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23 October 2013, 21:34	#2
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	Here's a video of the issue. I unplugged EVERYTHING from the A600 except the mouse and joystick and it's still doing it. You can see it flash at the opening screen and then constantly on the play screen. [ Show youtube player ] (and confirmed tested on RGB connection with no problems) Last edited by Amiga1992; 23 October 2013 at 21:52.

23 October 2013, 22:29	#3
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	change scart cable or monitor tv for verify

24 October 2013, 10:37	#5
roy bates Registered User Join Date: Apr 2011 Location: birmingham Age: 55 Posts: 2,827	whats the area around he cxa1145m look like on yours? have you noticed the lines appear when the disk is being accessed or no?

24 October 2013, 11:01	#6
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	This happens on all of my v1.3 A600's. As said there is a missing hot-fix. But I just use an RGB cable instead.

24 October 2013, 13:58	#7
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,645	So I am guessing I never realized this because I used this mostly on an RGB monitor. Here's how it looks after d0pefish cleaned it up: Clearly NO fix! I'll have to do this! I need composite for my tiny gig monitor. I Just thought this happened ONLY on PCMCIA access. I guess I was wrong. Thanks guys!

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