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Offline Roger_STopic starter

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Amiga 2000 blurry screen
« on: May 24, 2008, 05:16:29 PM »
Hi all,

I received my A2000 today. I had to change the PSU due to fire hazard.

The original PSU has been swapped with an AT PSU. Was an easy job. All pins are connected except the TICK signal, wich should be fine as I don't use a FF or VGA card.

I swapped J300 from pin 12 to 23 (Jumper located above Paula)

I booted the A2000 but now find to see that I have a blurred screen, Workbench boots fine. I don know if it had the problem before as I didn't boot it with its original PSU.

The monitor works fine on my a1200 and is connected using the "scart" connector.

When I move the J300 back to 12 the miggy seems to keep rebooting in a loop, no FD activity.

Any ideas?

Regards

Roger
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #1 on: May 24, 2008, 10:59:25 PM »
Anyone?
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #2 on: May 24, 2008, 11:59:58 PM »
I could really need some help on this one.
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #3 on: May 26, 2008, 08:49:53 AM »
Do you mean the elco's around the Zorro Slots? They all seem to be fine.

Has the distortion something to do with my repairs?

Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #4 on: May 26, 2008, 11:22:20 AM »
I reseated all chips. I haven cleaned the port and the A1200 is using the same cable and monitor.

composite is gray and the screen is scrolling every 5 seconds.

I'll check the fuses if i can find any.
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #5 on: May 26, 2008, 02:02:55 PM »
http://img228.imageshack.us/my.php?image=img0426bs5.jpg

it is not the camera that is unfocused. The whole screen looks like this.

The compsosite screen scrolls every 5 seconds. It shouldn't be doing that.
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #6 on: May 26, 2008, 09:43:05 PM »
No jitter, as I mentioned the composite output is scrolling every 5 seconds, that doesn't seem to be right.

Also the monitor works fine with my A1200.
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #7 on: May 27, 2008, 08:27:23 AM »
I Have a Picasso II in my Amiga 1200. But as I changed the PSU from my 2000 I now have no TICK signal. No SD or VGA will work anymore.

Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #8 on: May 28, 2008, 09:46:39 AM »
Than it is not easy for me to test the functionality. I'll just exchange them with same type.

What if I would change all the video chipsets, like Agnus and denise, could that help?

@zac67, The jumper is set to 2-3, but I thought/read that no SD of VGA card would work anymore.
Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.
 

Offline Roger_STopic starter

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Re: Amiga 2000 blurry screen
« Reply #9 on: May 28, 2008, 10:40:12 PM »
OK, I'm going to try my picasso II and a different monitor that I can hook up to the RGB port.

Amiga 1200, Blizzard 1230IV 64Mb RAM, SCSI DVD player, 72Gb Wide Ultra HDD, 4GB CF ide HDD Amiga OS3.9.