08 November 2008, 22:05 | #1 |
PSPUAE DEV
|
A600 PiggyBack Mod (Pr0n for zetr0, the perv)
Here's my attempt at the piggyback mod.
First, I bent the legs, so they gripped tightly to the original ic's. Then I used flux on all the pins, then heated the new ic legs and added the solder at the point of the joint. Worked great, even with a big soldering iron. This method enabled me to solder the legs in between as the ic's are so close together. |
08 November 2008, 22:08 | #2 |
Amibay Senior Staff
Join Date: Feb 2008
Location: Cardiff / Wales
Posts: 1,302
|
@FOL
Sterling work my friend, like the legs bent under & soldered...First class. It does work though doesn't it,, you didn't say BTW Thanks for the sat night pr0n...... TC |
08 November 2008, 22:11 | #3 |
PSPUAE DEV
|
Now, when putting it back together, I hit a problem. The Floppy drive had a screw that pushed up against the pins of the piggyback ic's. Simple answer was to remove the screw and add some engineers tape to stop any metal shorting out.
|
08 November 2008, 22:12 | #4 |
PSPUAE DEV
|
Oh, they were pre-bent and wires added by zetr0, . Saved me the hastle of doing it, . Thanks zetr0.
|
08 November 2008, 22:50 | #5 |
Zone Friend
Join Date: Feb 2006
Location: Hertfordshire
Posts: 688
|
Nice one FOL
Can you tell me which pins were not soldered / bent underneath? I've got the chips with wires (from Zetty also), but not sure as what not to solder. Pins numbers are foreign to me. A few simple arrows on your pics would help me out. Regards |
08 November 2008, 23:45 | #6 | |
PSPUAE DEV
|
Quote:
I just had a search around the eab, and I cant find it now, lol. |
|
08 November 2008, 23:50 | #7 |
PSPUAE DEV
|
It DID work for awhile. Then refused to boot, think I had some other problems causing it though. As when I bought the A600, the guy didnt pack it properly, so it was hammered by the PSU (heavy type and 2 floppy boxes) in the post (good ol royal mail, lol). I ended up removing the mod and it still was playing up, then it seemed to kick into life and work.
|
09 November 2008, 03:15 | #8 |
Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
|
@FOL
this is GREAT!!!! I reall am impressed, nice work m8. I have really been wanting to put up a proper how to, but have completely run out of time. I truely thank you FOL for doing this. The first time i did this mod, I fried two chips with the Floppy Drive!!! soon sorted that out with the Black Tape method. |
30 November 2008, 16:57 | #9 |
Zone Friend
Join Date: Feb 2006
Location: Hertfordshire
Posts: 688
|
I'm wanting to have a go at this mod today but.. I'm confusing myself!
See pic of chip donated by Zetr0. Are the bent pins with wires soldered on the correct side? They contradict the pictures of FOL's mod. When both chips are compared with the indent at the top the wires are attached at different sides of each chip. Also, where is pin one located? Please use my pic as a reference. Many thanks. |
30 November 2008, 17:21 | #10 |
Global Caturator
Join Date: Aug 2004
Location: Porando
Age: 43
Posts: 6,108
|
Sometimes I really wonder Z, if you're The Black Master Technician WiZard0 of EAB or just a silly kid who got his first soldering iron for christmas
|
30 November 2008, 18:42 | #11 | |
PSPUAE DEV
|
Quote:
It should be the other side, as yours is showing pins 8 and 9 bent over. Should be 28 and 29. I have the diagram in work, let me look tommorow and I will post exactly which pins it should be. With this type of i.c., they normal mark the front with a bevel. Once you know which is the front, you can lay the ic down and turn it so the bevel is at the top. Then you go from top left pin (pin 1) down, once you reach the last leg on the left, you then continue counting up from bottom right. They may also have a circle (normally called pip) in the top left corner (pin 1). I have come across flat pack (surface mount) ic's with no bevel and 2 pips in each corner. It can get confusing, I have put 2 ic's in the wrong way round in the past due to that, . I learnt the hard way about not marking which way round they went before removing the ic's I was replacing, . Last edited by FOL; 30 November 2008 at 18:55. |
|
01 December 2008, 00:10 | #12 |
Zone Friend
Join Date: Feb 2006
Location: Hertfordshire
Posts: 688
|
Thanks for the clarification FOL . I knew something wasn't correct. Just needed confirmation.
I'm going to try the 'A1K' method in which pins 11, 12, 15 & 30 are left free (as per Merlin's translation). I will solder the remaining pins should this not prove succsessful. Fingers crossed and update to follow... Last edited by Magno Boots; 01 December 2008 at 22:15. |
01 December 2008, 01:01 | #13 | |
PSPUAE DEV
|
Quote:
|
|
01 December 2008, 03:02 | #14 |
Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
|
@MagnoBoots
Ahhh!!!! good catch..... I have no reason or exscuse for that, I am humbly sorry about it, do you need another set ? |
01 December 2008, 03:08 | #15 |
Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
|
@MagnoBoots
Pins 11.12,15 and 30 are NC on the chips, athough I would suggest welding them down to avoid any floating pins / currents to be honest. |
01 December 2008, 04:00 | #16 |
Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
|
okay, so suffering from a little more insomnia than normal.
I finally gor round to making, atleast an easy to follow diagram that should compliment the HOW-TO FOL has put here firstly lets look at the chip pinout now lets look at this inline and connections to the motherboard In the Above, position E152 is actualy the signal side of R152, its very important to make sure you are on the correct side of the component otherwise you will ust ground the signal and nothing will happen. anyway I do hope it helps, as with anything of late, please double check, although I do check, I am prone to make errors, I suppose it proves I am human after all... maybe.... I would like to thank FOL for an absolutely excellent How-To, the guys at A1k for making it happen, Merlin for translating it and amiga.resource for the image i have included here. |
01 December 2008, 04:08 | #17 | |
Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
|
Quote:
LOL, infact i think I suffer from focus fail my friend, iF I repeat something more than twice, I thinks its systemic to my genetic code to fail on the 3rd attempt!!!! the above is a technical way of saying I suffer from blonde moments!!!! |
|
01 December 2008, 19:35 | #18 | |
PSPUAE DEV
|
Quote:
Still got to paypal you, I keep forgetting, . |
|
01 December 2008, 21:24 | #19 | |
Global Caturator
Join Date: Aug 2004
Location: Porando
Age: 43
Posts: 6,108
|
Quote:
Personally I love that one, used to make me win in some random games |
|
01 December 2008, 22:31 | #20 |
Zone Friend
Join Date: Feb 2006
Location: Hertfordshire
Posts: 688
|
Zetr0,
Thankyou for the offer of a replacement, but I need to get that iron out and get some practice in! May I assure you that my post was not to embarrass you in any way and I apologise if it has done so. I needed confirmation of which chip was incorrectly wired as FOL stated that his attempt was once working / now not working. Your sketch is exactly what is needed to carry out this mod . Magno |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Chain & Zetr0 Pr0n | Loedown | support.Hardware | 10 | 27 September 2010 13:19 |
Little amateur pr0n for Zetr0 | ferix | Hardware pics | 19 | 24 February 2010 01:00 |
A600 2mb piggyback mod - help needed! | UberFreak | support.Hardware | 7 | 28 September 2009 15:04 |
Hardware Pr0n for zetr0 and all :p | BinoX | Hardware pics | 39 | 25 January 2009 14:33 |
Hardware pr0n for Zetr0 ;-) | ratterpat | Hardware pics | 25 | 09 November 2008 04:19 |
|
|