English Amiga Board - View Single Post - AMIGA 1200 Timing Fix- PLEASE HELP!! (pictures attached)

Hache · 11 April 2013, 13:34

Hi all!
First of all, sorry for my bad english. I'll do my best for you to understand me:

My ACA1232 card I bought some moths ago, works ok but I have timing fix issues on my Amiga 1200.

My Motherboard is Rev.1D4 and I'll get the components (ferrite beads, etc) from Ebay, since in my country I can't find them in any shop. So I'll give you some EBAY links to see if It's ok what I should buy.

Here are attached some photos (my apologyze for the bad quality). I will be grateful if you can tell me step by step what changes should I do. If I say something is wrong, please correct me.

1) E121R and E122R need to be changed to 60ohm Ferrite Beads.
This is clear and please tell me if they're ok to buy:
http://www.ebay.com/itm/BLM21PG600SN...item1e78ac59ad

2) E121C and E122C need to be added (22pf), if not already.
This is clear too, and I'll buy these:
http://www.ebay.com/itm/SMD-SMT-0805...item4605d027f1

3) E125C, E125R,E125C and E123R.

Ok. Here, when I made the first timing fix, I made it following a bad instruction from a web page. In this instruction you have to remove E125C and E123C and that was wrong.
Now with this correct timing fix I realize that one of them should be present, but I lost them. How could I replace these? Could you please send me a picture or an EBAY link in order to buy the correct component?

Well, I think that's it. THANK YOU if you can help me.

These timing fix issues are giving me a big headache.

If I'm missing something, please let me know.

Thank you so much!!!

Hernán.

11 April 2013, 13:34	#1
Hache Registered User Join Date: Jan 2013 Location: Buenos Aires, Argentina Posts: 257	AMIGA 1200 Timing Fix- PLEASE HELP!! (pictures attached) Hi all! First of all, sorry for my bad english. I'll do my best for you to understand me: My ACA1232 card I bought some moths ago, works ok but I have timing fix issues on my Amiga 1200. My Motherboard is Rev.1D4 and I'll get the components (ferrite beads, etc) from Ebay, since in my country I can't find them in any shop. So I'll give you some EBAY links to see if It's ok what I should buy. Here are attached some photos (my apologyze for the bad quality). I will be grateful if you can tell me step by step what changes should I do. If I say something is wrong, please correct me. 1) E121R and E122R need to be changed to 60ohm Ferrite Beads. This is clear and please tell me if they're ok to buy: http://www.ebay.com/itm/BLM21PG600SN...item1e78ac59ad 2) E121C and E122C need to be added (22pf), if not already. This is clear too, and I'll buy these: http://www.ebay.com/itm/SMD-SMT-0805...item4605d027f1 3) E125C, E125R,E125C and E123R. Ok. Here, when I made the first timing fix, I made it following a bad instruction from a web page. In this instruction you have to remove E125C and E123C and that was wrong. Now with this correct timing fix I realize that one of them should be present, but I lost them. How could I replace these? Could you please send me a picture or an EBAY link in order to buy the correct component? Well, I think that's it. THANK YOU if you can help me. These timing fix issues are giving me a big headache. If I'm missing something, please let me know. Thank you so much!!! Hernán. Last edited by Hache; 11 April 2013 at 13:47.