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Old 28 September 2018, 09:13   #41
Mr.Flibble
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Just waiting on some fresh components before I make a start
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Old 13 October 2018, 21:51   #42
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http://www.hertell.nu/webfiles/ReAmiga1200Rev12.zip

Rev 1.2: At composite 0ohm jumpers. R62 NTSC Location was connected to ground and should ACTUALLT be connected to
RGB port (23pin) pin 15. no idea why this fuckup was. Corrected here.. so earlier versions of board
and if you want composite/svideo in NTSC middle pad of R62 shold be connected to RGB Pin 15 instead of a
jumper. PAL Is not affected

IF using a VideoDAC that requires a Zenerdiode, I have now connected the R215 Correctly (was wrong on older
versions not connected to +5V. so you must put a 1K resistor here if that DAC is used. on older rev.
you need to connect the 1K resistor on RIGHT pad of C215 and to +5V (like top pin of D233A)

Added Kickstartswitch functionality,. if you are using 27C800 proms. you can program one bank with one
kickstart and the other bank with another. if R6A (bottom side of board) is set to ENA. the jumper can
select the active bank. High/low with moving a jumper or a switch. (or a pic controller of your choise)
if R6A is set to DIS, the A18 signal is handled as on any Amiga.
to make some kind of PIC for this controlled by joystick fire or mouse left. FIR0 and FIR1 have been equipped
with a TH hole for soldering a wire there.

On older rev. you needed to do a slight solderblob at the pads close to U10 (between it and the FPU location)
this is now a trace. Trace is visible so if you need another "strange" budgie configuration, just cut that
trace and do your stuff.
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Old 20 October 2018, 13:26   #43
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Have you had any feedback about your clone PCB yet?
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Old 20 October 2018, 17:16   #44
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well I still have to see someoe who soldered their board but yes I get alot of positive comments..

and well maybe 1 or 2 that say "Better to repair the existing board"
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Old 20 October 2018, 18:19   #45
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Alright, I just wondered if you'd had anyone confirm that they work as I saw some on Ebay.
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Old 20 October 2018, 19:01   #46
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I was wondering if you'd seen this Chucky http://www.amigaclub.be/projects/amiga1200plus
I wonder why he moved the ram onto a daughter board?
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Old 20 October 2018, 23:53   #47
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yes. I have some talks with him.

daughterboard.. well. devboard so.. I should also do that
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Old 21 October 2018, 00:34   #48
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Quote:
Originally Posted by Chucky View Post
IT IS TIME!
The ReAmiga 1200 Rev 1.0


http://wordpress.hertell.nu/?p=587


Help with componentlocation: http://www.hertell.nu/locator/locator.php?project=r1200
Chucky, I am in awe !
Beautiful work !
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Old 23 October 2018, 20:16   #49
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Added an important note to my post about ReAmiga 1200:

If you are moving from a 2B board, first of all. you need new memorymodules.

BUT you also need to reprogram the GAL. you need to have the 1D.x code for XU9 location not the XU1 location GAL (same physical place but different name) code is in the R1200 archive.


http://wordpress.hertell.nu/?p=618
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Old 27 November 2018, 15:48   #50
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What filters are you using for the power? they aren't mentioned in the BOM.
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Old 30 November 2018, 08:44   #51
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As I did this as a replacement pcb to move components from a bad 1200 to this. I have not really checked that out.
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Old 30 November 2018, 19:57   #52
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Ah ok no worries. It's just your latest article says you are using NOS parts so I wondered what you were using.

Does anyone know any suitable substitutes for the originals?

All I can find about the original ones are this. TDK ZBF503AR-00TA?

It appears the boards used either a single coil or 2 small/2 large ferrite beads but you used 4 of the same size in your article? I suppose that's the same as the single coil.

Last edited by Mick; 03 December 2018 at 23:57.
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Old 25 December 2018, 22:44   #53
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http://wordpress.hertell.nu/?p=710

Did a Errata post. read this before soldering.
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Old 26 December 2018, 22:12   #54
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Did a Build-guide for the ReAmiga:

http://wordpress.hertell.nu/?p=712
http://wordpress.hertell.nu/?p=735
http://wordpress.hertell.nu/?p=750
http://wordpress.hertell.nu/?p=781
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Old 23 February 2019, 11:29   #55
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Quote:
Originally Posted by Chucky View Post
IT IS TIME!
The ReAmiga 1200 Rev 1.0

http://wordpress.hertell.nu/?p=587

Help with componentlocation: http://www.hertell.nu/locator/locator.php?project=r1200
Hi Chucky,

I've just came across this thread and your website, I'd like to say a huge thanks for the work you've done, there's a lot for me to read through, I really appreciate how detailed and well explained your documentation is.

Thanks
Casper
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Old 25 February 2019, 21:08   #56
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Quote:
Originally Posted by AJCopland View Post
I was wondering if you'd seen this Chucky http://www.amigaclub.be/projects/amiga1200plus
I wonder why he moved the ram onto a daughter board?
Wow, another one?
Man, that Amiga Reloaded from IC sure looks less and less likely.
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Old 25 February 2019, 21:18   #57
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Amiga 1200plus..
let me say like this: www.amiga34.de -> Amiga34 -> Aussteller point 10.

and go figure..
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Old 14 August 2019, 22:14   #58
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Rev 1.4 – 74LS166 Pin 6 and 8 should be connected to Ground!
Also made changes:
Moved some traces being close to edge and vias, some boardhouses had issues with this.
Added headers close to 0Ohm resistors for audio, so you can skip the 0Ohn resisors and do own “mixing” if wanted.
Moved onboard leds some, so they will not short to a diskdrive. Also added headers for leds if mounted in a Tower.
At powerconnector, added pads for a ferritebead, so if using a round powerconnector the N/C pin can be used for ground. (NOT for use on square connector)
At A500 keyboard connector, exluded the extra HDD signal for the key. if wanted, you add a 1Ohm resistor at back to enable function.
Removed 3 0Ohm resistors at alice. (made them onboard instead)













http://www.hertell.nu/webfiles/ReAmiga1200Rev14.zip
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Old 15 August 2019, 13:01   #59
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Nice work Chucky, good to see you still working on it
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Old 16 August 2019, 15:43   #60
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Good to see progress.
But now I do not know if I should assembly my Re-Amiga 1200 v1.2, or wait for newer revisions
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