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Author Topic: Compserv Scandoubler II  (Read 1310 times)

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Offline AmigazTopic starter

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Compserv Scandoubler II
« on: March 01, 2009, 01:06:50 PM »
Have noticed my Compserv Scandoubler II in my A4000T has quite a lot of flickering pixels in all modes
I noticed it has an adjustable thingie which you can turn with a flatblade screwdriver
Does anyone know if it has the same function as the adjustment screw on the Amiga 3000 scandoubler?  

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Amiga 4000T - A3640 '040
Amiga 4000 - CS MKIII
Amiga 1200 - Blizzard 1230 MKIV
Amiga 1200 - Stock
Amiga CD32 - TF360
A bunch of ol' A500's
 

Offline Mugo

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Re: Compserv Scandoubler II
« Reply #1 on: March 01, 2009, 02:11:49 PM »
Yes, it's a variable capacitor.
It's there to adjust the oscilator frequency, so you can compensate the kind of image imperfections that you described.
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Offline keropi

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Re: Compserv Scandoubler II
« Reply #2 on: March 01, 2009, 03:43:50 PM »
I had one too long time ago... never got it working 100%... I also remember some pink flickering pixels... luckily the smaller v1 Arxon works perfect, no screws no fiddling!
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Offline AmigazTopic starter

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Re: Compserv Scandoubler II
« Reply #3 on: March 01, 2009, 04:12:23 PM »
The weird thing is that it worked flawlessly when I had it in my Micronik A4000T
Must be some other timings in this real A4000T that's causing my small problems..
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Amiga 4000T - A3640 '040
Amiga 4000 - CS MKIII
Amiga 1200 - Blizzard 1230 MKIV
Amiga 1200 - Stock
Amiga CD32 - TF360
A bunch of ol' A500's
 

Offline AmigazTopic starter

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Re: Compserv Scandoubler II
« Reply #4 on: March 04, 2009, 08:03:31 PM »
Problem solved!

Moved jumper JP1 according to the manual http://amiga.resource.cx/manual/Scandoubler-II.pdf
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Amiga 4000T - A3640 '040
Amiga 4000 - CS MKIII
Amiga 1200 - Blizzard 1230 MKIV
Amiga 1200 - Stock
Amiga CD32 - TF360
A bunch of ol' A500's
 
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