Welcome, Guest. Please login or register.

Author Topic: Need help at component level - A1200 Paula  (Read 3206 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Dr_RighteousTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 1345
    • Show all replies
Need help at component level - A1200 Paula
« on: August 29, 2003, 10:33:33 AM »
As I've mentioned before, I have a couple of A1200 boards I'm trying to get running.

The one board I have that boots at all seems to have a problem stemming from Paula... FDD unrecognized, DF0:?????? on the WB desktop...

Paula is getting quite warm in a short period of time... A few minutes later, black (sometimes messed up) screen, system locks.

I've checked the voltages with a DVM, and everything looks fine as far as that goes, so my guess is it's Paula herself.

My question is twofold:

1. Does anyone know an inexpensive method of extracting and replacing the 13x13 PLCC?

2. Will the A1200 run without Paula, if I were to just cut it off the board for the time being? (Obviously I'd lose FDD, Mouse/Joystick and Audio... But I can get by with a serial mouse and maybe get a Catweasel)
- Doc

A4000D, A3640 OC-36.3MHz, custom tower, Mediator A4000D. Diamond Banshee 16M, Indivision AGA 4000, GVP HC+8.

Mac Mini 1.5GHz, that might run MorphOS someday, when the fools who own it come to the realization that 30 minutes just isn\'t enough time to play with it enough to decide whether or not you like it enough to cough up $200.

 - Someone please design SOME kind of DIY accelerator for the A4000. :D -
 

Offline Dr_RighteousTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 1345
    • Show all replies
Re: Need help at component level - A1200 Paula
« Reply #1 on: September 01, 2003, 09:37:06 AM »
@Castellen
Thank you for the serious response...

I would love to get my hands on some SMD equipment, alas I haven't the funds at the moment.

I think what I'll try is cutting the legs off with my Dremel and desoldering them one-by-one... Then solder in a 52 pin PLCC socket.

I'll definately have a look at the CIA's tho... I didn't even think about checking them out while I was at it.

On slight tangent... I ran across this method of creating a hot air pencil, as opposed to the "flame-thrower" approach... It sounds feasable. Any thoughts?
- Doc

A4000D, A3640 OC-36.3MHz, custom tower, Mediator A4000D. Diamond Banshee 16M, Indivision AGA 4000, GVP HC+8.

Mac Mini 1.5GHz, that might run MorphOS someday, when the fools who own it come to the realization that 30 minutes just isn\'t enough time to play with it enough to decide whether or not you like it enough to cough up $200.

 - Someone please design SOME kind of DIY accelerator for the A4000. :D -
 

Offline Dr_RighteousTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 1345
    • Show all replies
Re: Need help at component level - A1200 Paula
« Reply #2 on: September 01, 2003, 11:36:16 AM »
Dental pick? Did you use the iron to heat the pick or just pull the leads up off the board?
- Doc

A4000D, A3640 OC-36.3MHz, custom tower, Mediator A4000D. Diamond Banshee 16M, Indivision AGA 4000, GVP HC+8.

Mac Mini 1.5GHz, that might run MorphOS someday, when the fools who own it come to the realization that 30 minutes just isn\'t enough time to play with it enough to decide whether or not you like it enough to cough up $200.

 - Someone please design SOME kind of DIY accelerator for the A4000. :D -