My A1200D Project

[delshay]

system uptime its not a Blizzard card,there are some good and bad points.

http://amigaworld.net/modules/newbb/...orum=14#599895

[phipscube]

@Steve, aye all that modding I did way back last July... the start of this crazy beast I sometimes look at it and think "how did I do that?"

@Retrofan, you only really need to give the floppy port the links if you use a BPPC and definately if you have a BVPPC connected to it, just to beef up the voltage levels. If you're only running an ACA then no need to run lines, just take straight from the PSU power connector. If you want to run a few things off the PSU connector and have the ability to add and take away as you please then see Marios' awesome Custom A1200 D, he has a connector block along the back of his A1200 that he can easily add connections to: -

http://eab.abime.net/showthread.php?t=51540

@delshay, sorry mate, I really don't see the point in leaving a system running for such a long time. Its interesting to see the Amigaone was running so long, but why do this?

[phipscube]

Here's some more stuff!

PSU.... what a PITA! I've bought 2 mATX units, one cheapo, one expensive (was a seasonic 350W) none of these worked. I ended up pulling 3 full atx PSUs from old work pcs to do some tests and all but 1 failed on +5V. The one that passed and booted my machine reset when ever I put a CD in the drive! so the only PSU's that work are my old trusty ATX and the APOWER. Well I decided to stick with my old trusty ATX and give Ziggy my APOWER (as it was getting very hot).

I also decided to put the A1200 aside for a bit and get Ziggy's A600 up and running properly with VGA out and fully loaded HDD with WHDLoad and games.

I was sat happily loading up Zig's A600 and after about an hour I noticed something....... The APOWER was getting hot!!? almost as hot as with my A1200, "this isn't right" I thought. So I took it out of the plastic casing, and it was then running ALOT cooler. I did the same with my A1200 and again it ran alot cooler than before (a bit hotter than with Zigs A600, but not stupid hot) I don't know why I didn't think of that before! So I decided to give something a try, put the APOWER in the original PSU I got off Steve a bit ago instead of an mATX PSU. So here is how I did it: -



Here's The PSU in all its original glory.




Inside the original supply.




I need to cut these wires out.





The supply sans board, I took a quick note of the voltages for each coloured wire. bear in mind that the colours can be different so if you plan to do this, double check the levels with a meter before you start wiring up.






I had to do some trimming





I hot glued a 12V Fan in the top.





Here's the APOWER out of its case.





Wiring up to the Power lead and switch.





Quick check it all fits ok.







The APOWER fits onto 2 of the original mounts with a small amount of grinding on the board.





Mounted a block terminal for attaching the DC lines.





With all the lines connected.

[phipscube]

Full view of the supply all in with the fan over the top.





I made a small PWM fan controller to bring the fan noise down to whisper quiet.





And there she is with all assembled.... who could guess it has a small beast in there?!

I actually did this mod about 3 weeks ago, and since then its been running both my A1200 and Ziggys A600 when i've been working on it. And its not getting hot at all, its ultra cool and ultra quiet now, even in these hot days we are having at the moment in Denmark!

On a note of heat, my A1200 seems to be handling the high early summer temps at the moment. Its getting generally 2 degrees or so hotter than before on the CPU's and BV but i'm still not running it any more than 2 hours at a time.

Ok, I bought some more things too: -



A Lyra II 1200, I'm gonna try and force this into the old girl to allow external keyboard connection. So i'll be totally ripping off Marios' awesome mod, I hope you don't mind mate




A close up of the beaut, the jumper at the top there allows PC or real Amiga keyboard connection, i'll put a switch under the back lip a bit like the manual video swich to choose between these and plonk some wires on that jumper header.





And finally for now, I bought a 320GB PATA drive, yes its a bit OTT, but i'm a bit of a to the maxx kinda guy so figured why not!

I see that OS 4.1 Classic is finally imminent so will plump for that when its out and see how it runs clean on this drive and keep the 80Gig one loaded as it is for now as a backup.

Oh! I also redid my custom 3.9 roms and simply put the old SCSI device from the original OS 3.1 roms for now until Cosmos' betas are sorted. I didn't try PFS3 yet, but want to get started on the 320GB drive now on the 3.9 Partition. the 80GB drive will be my fallback (as its set up to easily change my ROMS should I need to) and build the 320GB up with all the cool chit.

What else? Oh yeah, I want to put my DVD drive through a regulator connected to the +12V line to try and take a small bit of fluctuation off the +5V rail.

Anyway, thanks for looking!

[seuden]

Simply stunning stuff in this thread!!

[phipscube]

Thanks seuden!

Well here's my latest stuff: -



So there is the keyboard controller the Lyra II has to sit on.





And i'm gonna take out the Video phono plug and place the PS2 plug there instead.




Hmmm... this needs modding!




EEK! Best not remove the connector then




Didn't say anything about soldering wires underneath voiding warranties did it?





The level of destruction needed to take one Video phono connector off.





There it is!




Out you pop me lad!




This is just an experimental 12V to 5V mod I made for the DVD drive. It didn't work so well, the drive wouldn't spin up a disk on a warm reset properly so I eneded up taking it out after the Lyra II mod.




There is the Lyra II in place.





But I realised I have to move the wires as they get in the way of the IDE Fix Express.




bit of tape to insulate.

[phipscube]

On goes the Indi and IDE Fix.




I Took the board out again to solder on the PS2 connector. same methods I used to hold on the Audio mixer, basically soldered the body of the connector to the metal sheilding.





There we go, nice and flush. I had to heat and move the connector a few times to get it in the right place.




Testing the fitting with an Amiga keyboard (well a CDTV keyboard with a CD32 Adapter).




And with a PS2 PC keyboard, both plug in snugly.




Sliding the board back in... ooo, it JUST fits!




1 mm to spare underneath.




Roughly drawing where the wires go on the PS2 connector.




And soldered on.




Here's the switch I have connected to the keyboard selector jumper. Shorted = PC keyboard, open = Amiga Keyboard.







From underneath the lip.




Another one of those wide shots of all the sh*t in my A1200, how it still works baffles me!




The Lyra II just nesting quite tightly in there!




Added some stickers to be sure, don't want to forget and plug the wrong type of KB in!

[phipscube]

Did the same for my manual override switch on my Auto Video Switcher. Not as dangerous, but still good to have




The keyboard works!




CDTV Keyboard with a CD32 (A4000) adapter

So thats the Lyra II in! And it helped very much already not havign to keep the original keyboard in when needing to do tests (I was doing some tests with the clock port adapter lastnight, swapping ports)

I'm gonna plug in the 320GB HDD next, load up a vanilla OS, and get some partitions going on it

Thanks for looking!

[mfilos]

Awesome and Epic as always my dear friend!
PS2 will come handy for sure for your continuous mods \o/ (At least it helped tonz in mine)

/respect

[fitzsteve]

Hey Les, how much to send you my A1200 for this complete modding service?

[Retrofan]

Incredible...

[FOL]

That is one insane miggy, .

[phipscube]

Thanks Marios I'm sorry for copying your awesome mod, but I loved the idea so much, I wish i'd thought of it earlier in my own A1200! the amount of times i've nearly thrown my keyboard out the window, HAHA!

OOOOo.... about a million squillion billion dollaz steve mate! to be honest i've lost track of how much this crazy beast has cost me!

Thanks Fernando

Its is quite insane isn't it FOL? I look inside and its like WOAH! How did it get so crazy? But I have tried to make it so that when the lid goes on it still has the simple original look

[Jope]

Originally Posted by phipscube

Added some stickers to be sure, don't want to forget and plug the wrong type of KB in!

It's just a protocol difference, won't fry anything..

[phipscube]

Ah ok, thanks for the info Jope I could see the KB pins are the same, but didn't know the consequences of having the switch in the wrong place.

[Retrofan]

Hey Phipscube you have to tell which camera (megapixels) are you using for all this great/incredible pictures.
EDIT: I've been looking cameras while I was replacing the main Tv in my home... Ooooh!!! A 42" LED LG with 3D for 799€....
Well... Off topic, but... Are they getting 16 Megapixels by now with them (cameras)?

[Supamax]

Incredible work, phipscube!

What about the PWM speed regulator? Did you project it yourself or did you use a ready-made scheme?

I would need a PWM regulator for my 8mm/Super 8 modified projector... (of course the motor to be speed regulated is much more powerful than a small vent)

[phipscube]

@Retrofan, I use my phone! Its a Sony Ericsson Vivaz, set at 6M pixel widescreen format. So nothing ultra special.

@Supamax, I used a circuit I found here: -

http://www.overclockers.com/forums/s...67&postcount=2

(Its also earlier in the thread, but to save you searching).

I'm not sure it would be powerful enough to drive the motor in your projector, put it this way, the circuit here can deal with around 3x 12V fans comfortably, but any more and its starting to push it. I'd say no more than 1 Amp. But this circuit may give you some ideas at least

[Supamax]

Originally Posted by phipscube

http://www.overclockers.com/forums/s...67&postcount=2

[...] this circuit may give you some ideas at least

Thanks!

[phipscube]

Its been a while, and i've been away from the Amiga for a few months, but I have started messing around with the old A1200 Beast again. Whilst using her I found I wanted to see some kind of activity LED's for my NIC and DVD drives so I added a few: -



I drilled a 2.5mm hole into the side near the Delfina Mic + Line sockets so I can see when my NIC is active.




The LED is a flat top so its flush with the casing. I chose Yellow because when its off you can't notice it so much and I wanted a colour that matches the original top access LEDs.

Here's the LED for the DVD: -





This is the NIC LED flashing away when active: -




And the DVD LED: -




I've got OS 4.1 Classic loaded on the machine now and can get all hardware working except the Delfina. I got it to work with scratchy sound output when I blacklisted certain files in the JIT emulation but the whole system was so flakey and crashtastic that I decided to roll back to an earlier backup and just quit trying and hope that one day a proper official driver will be made.