Clockport Expander A1200

[Retrofan]

Hi:
I was going to solder the clockport expander cables directly to the motherboard when I saw a related phipscube photo:

http://picasaweb.google.com/lrailton...82507359486194

Shoudn't the cables be soldered to pins 5 and 6 instead of 6 and 7?
Or perhaps is it only my Clockport rev A instead of his B one?
This is how it comes:

[Retrofan]

I don't have all day...
Do I undo something?

[FOL]

Originally Posted by Retrofan

Hi:
I was going to solder the clockport expander cables directly to the motherboard when I saw a related phipscube photo:

http://picasaweb.google.com/lrailton...82507359486194

Shoudn't the cables be soldered to pins 5 and 6 instead of 6 and 7?
Or perhaps it's only my Clockport rev A instead of his one B?
This is how it comes:

Arent they soldered to 36 and 34 in that pic?

Originally Posted by Retrofan

I don't have all day...
Do I undo something?

35 and 34 in this pic?

[Retrofan]

I'm not sure about pins numbers. I send a better photo:
http://img191.imageshack.us/img191/7491/abcd0002cx.jpg

Yesterday I had a similar "problem" with the cable of the fast ata: in a photo of fitzsteve it seemed it had to go to the 2º pin on the right, and it was the 3rd (as in the manual and as told in other forum). It seems you can't use only the photos as guide...

[FOL]

Originally Posted by Retrofan

I'm not sure about pins numbers. I send a better photo:
http://img191.imageshack.us/img191/7491/abcd0002cx.jpg

Yesterday I had a similar "problem" with the cable of the fast ata: in a photo of fitzsteve it seemed it had to go to the 2º pin on the right, and it was the 3rd (as in the manual and as told in other forum). It seems you can't use only the photos as guide...

Your pic looks like they are connected to 36 and 35. Can you take a closer pic of board straight on.

[Retrofan]

http://img195.imageshack.us/img195/1116/abcd0003q.jpg

http://img17.imageshack.us/img17/6575/abcd0004h.jpg

http://img217.imageshack.us/img217/8273/abcd0005f.jpg

[FOL]

Originally Posted by Retrofan

http://img195.imageshack.us/img195/1116/abcd0003q.jpg

http://img17.imageshack.us/img17/6575/abcd0004h.jpg

http://img217.imageshack.us/img217/8273/abcd0005f.jpg

Now that looks the same as the ROM socket in first post.
So your using Orange for Positive +?

Is there a link to this mod, not just pictures?

[Retrofan]

(Those photos are mines)
The best mod I've seen is that: the Phipscube's one:
http://eab.abime.net/showthread.php?...ghlight=A1200d

But the photos of his project aren't in the thread but here:
http://picasaweb.google.com/10692986...552/A1200Mods#

His clockport expander is rev B and mine is rev A. Perhaps they changed where the cables must go, as in my kickstart socket the clockport is clearly using different pins (the ones where I've solder mines in the mb).

I only find three possibilities: or he did a mistake, soldering them where they don't go (and he had luck that it worked) or it goes that way with his revision, but I'm not going to solder mines as he did if I don't find a good reason, or that the error is in my Clockport, that they didn't notice and changed pins to solder...

EDIT: Orange as positive? Do you have something against orange?
I'm using thinner rigid cables and I don't have black (neither red).

[FOL]

Originally Posted by Retrofan

(Those photos are mines)
The best mod I've seen is that: the Phipscube's one:
http://eab.abime.net/showthread.php?...ghlight=A1200d

But the photos of his project aren't in the tread but here:
http://picasaweb.google.com/10692986...552/A1200Mods#

His clockport expander is rev B and mine is rev A. Perhaps they changed where the cables must go, as in my kickstart support the clockport is clearly using different pins (the ones where I've solder mines in the mb).

I only find three possibilities: or he did a mistake, soldering them where they don't go (and he had luck that it worked) or it goes that way with his revision, but I'm not going to solder mines as he did if I don't find a good reason, or that the error is in my Clockport, that they didn't notice and changed pins to solder...

EDIT: Orange as positive? Do you have something against orange?
I'm using thinner rigid cables and I don't have black.

Rev should'nt matter.

Orange, I ment Positive as in Voltage, .

His mod is on 35 and 34 of the ROM socket.
Yours appear to be on 36 and 35.

[Retrofan]

Originally Posted by FOL

Rev should'nt matter.

Orange, I ment Positive as in Voltage, .

His mod is on 35 and 34 of the ROM socket.
Yours appear to be on 36 and 35.

Yes, that's what I'm saying. I've done just as in the rom socket that comes with the Clockport expander... What do I do? Can it be he did a mistake then or that my Clockport came wrong soldered (DJBase mistake)?

Orange is gonna be "red", positive. Still I haven't soldered them in the Clockport.

[phipscube]

Hi RetroFan

To line my wires up I basically plugged in the rom extender socket for the clockport expander and noted where the wires were connected, then simply desoldered them, fed them through the HDD holder hole and soldered them in the same places they had been on the socket. Are you sure you had the rom sockets in the correct place? there is one extra set of pins on the A1200 mainboard that shouldn't be used.

Look at this photo: -



can you see the spare unused pin on the rom socket near the oscillator? you have to be sure that you line up the clockport expander rom socket in the same place as the Amigas rom, this can be the difference between a and a

I've only just got back from holidays and my stuff is all over. Once I get the Miggy out (in the next few days) i'll be able to help more with exact pin numbers etc. But rest assured mine works with a Subway and a Delfina. I think the pins have to be the same for all revisions, AFAIK the only difference with the revisions is physical board layout. I don't think you can fluke the connections so just be careful, don't go rushing into anything...

[Retrofan]

Thanks for the answer.
Wow, yes what a mistake! YES you are true, although they are soldered on pins 5 and 6 (EDIT: from left to right) as the Clockport socket will use one less of each file on the mb, the ones to solder have to be 6 and 7 (from left to right)... I didn't realice.

I will solder them the right way when I get home.
Thanks so much. THREAD CLOSED, YUJU!

[FOL]

Originally Posted by Retrofan

Thanks for the answer.
Wow, yes what a mistake! YES you are true, although they are soldered on pins 5 and 6, as the Clockport socket will use one less of each file on the mb, the ones to solder have to be 6 and 7... I didn't realice.

I will solder them the right way when I get home.
Thanks so much. THREAD CLOSED, YUJU!

Remember, your counting back from 40. As the pinout reads from left down and then right up.


ROM SOCKET

1___ 40
2___ 39
3___ 38
etc___ etc

I say this as you keep saying pin 6 and 7, they are on the other side of the rom socket.

I would go with what phipscube said, with the working socket as it is, line it up and make a note.

[Retrofan]

Thanks. Got it:


Yes, I said that, but I'm referring counting from left to right. I said I didn't know about pin numbers... (now I do)

..."Line it up and make a note"... now it isn't necessary, I've got it in my head. It was just that I was seeing the clockport socket and comparing it with the mb pins, while the first has two pins less, just like the roms.

[FOL]

Originally Posted by Retrofan

Thanks. Got it:

That pic you posted is wrong. IDE cables are wired differently.

[Retrofan]

I don't understand. The photo of how I soldered them? YEs, now I know it's wrong, I've told that. I will solder them in the next pin, just like Phipscube did.
Perhaps you say the one in black&white?
Perhaps I will keep counting pins from left to right or viceversa...
BTW I will connect the cables to the lower part of the clockport board instead of in the upper side as he did:
http://picasaweb.google.com/10692986...05085972061810

[FOL]

Originally Posted by Retrofan

I don't understand. The photo of how I soldered them? YEs, now I know it's wrong, I've told that. I will solder them in the next pin, just like Phipscube did.
Perhaps you say the one in black&white?
Perhaps I will keep counting pins from left to right or viceversa...
BTW I will connect the cables to the lower part of the clockport board instead of in the upper side as he did:
http://picasaweb.google.com/10692986...05085972061810

Sorry,

I thought I might have confused things.
I was trying to explain this (See attached);

However you just remided me that the rom socket has two extra pins unused, .
So they would have to be considered when counting (i.e. ignore them).

[Retrofan]

Originally Posted by FOL

Sorry,

I thought I might have confused things.
I was trying to explain this (See attached);

However you just remided me that the rom socket has two extra pins unused, .
So they would have to be considered when counting (i.e. ignore them).

Ok, but then the pins in the Ide connector for the Hard drive, they aren't counted the same way? I mean, in the IDE connector, pin 39 is the second or the third looking in front of the Amiga of the file of the right, starting from the upper part? Because it seems 39 is the 3rd, and following your link it should be the second. -

[FOL]

Originally Posted by Retrofan

Ok, but then the pins in the Ide connector for the Hard drive, they aren't counted the same way?

Correct.

Look at what I posted and that ide picture, you can see then.

Rom, goes down one side and up the other.
IDE, goes across, up and down along the connector.

Its hard to explain.

[Retrofan]

Well, definitely I'm going mad... Ok, the cables go on the next pin, and when I've arrived home I've seen the photo of Phipscube and as he has the red cable on the left, I've thought I had mistaked that too, so I've soldered orange on the left (to be as red). The thing is that if you see my photo of the rom socket you will see it has black on the left.
I've thought that perhaps he changed the other side where it plugs on the Clockport, but no: http://picasaweb.google.com/10692986...05085972061810

And this is how it comes:


Ok, I won't have to desolder nothing, but to turn the connector so it'll keep ok.
This is what I have now:
http://img11.imageshack.us/img11/8725/abcd0007ba.jpg

And this is the connector I've done:
http://img574.imageshack.us/img574/3682/abcd0006f.jpg

What it seems to me is that now my orange is black (as it is in the original clockport rom socket), and that the black cable goes first from down to the clockport board. Phipscube has soldered them in the motherboard on the contrary (compared with the clockport socket photo) , but he keeps leaving black first on the clockport board.
Don't you see it?





EDIT: Just compare both photos in my first post and tell me if the color of the cables aren't on the contrary, and then see the photo showed in this post and compare it with the first link of this post of Phipscube's photo (they are connected exactly the same way to the clockport board)