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25 April 2020, 15:58
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#61 |
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Registered User
Join Date: May 2019
Location: Manchester UK
Posts: 137
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Nice work buddy..
Now I have my A570 fully functional ..it makes sense to upgrade it imo.. And the possiblity of adding external scsi intrigues me. Somewhere in my retro pile I have a suitable 25 pin to Centronics lead ...and an external scsi caddy .. The only issue I can see is that the only scsi hard drive I have is an 80 pin 9gb drive ..which I would have to use with an 80 pin to 50 pin adapter..and hope the A500 can handle such a large drive. |
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25 April 2020, 17:50
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#62 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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sorry, my english is very poor
how have you solved? i have 2 a570 with problem and need tips |
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25 April 2020, 17:50
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#63 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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double post
Last edited by cpiac64; 26 April 2020 at 16:57. |
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25 April 2020, 20:36
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#64 |
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Registered User
Join Date: May 2019
Location: Manchester UK
Posts: 137
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I'm sure help might be more likely ..If you explain the problems you are having ?
When it comes to faulty units ...one size does not fit all.. ?? |
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26 April 2020, 16:59
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#65 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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black screen both, but if use cd-rom from first on second, work
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26 April 2020, 20:55
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#66 | |
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Registered User
Join Date: May 2019
Location: Manchester UK
Posts: 137
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Quote:
It does sound like you may have similar issues to what I had .. My first thought is PSU .. If you have a spare PSU ...I'd try that .. The PSU from A600 A1200 and A500 are basically the same as the A570 power supply .. So Try another ...If this solves you problems ..then opening it up and replacing ALL electrolytic capacitors may well help. BUT ..you do this at your own risk. Success will depend on your skill level with a soldering iron ..and basic uderstanding of working with electronics. NEVER attempt repairs to high voltage equipment without disconnection and a good wait period to allow capacitors to discharge. You say you have 2 x A570 with the same problem.. This I find too much of a coincidence ...but IF you use the same power supply for both units ..then that is the common denominator I think. good luck.. VS Last edited by Vipersan; 27 April 2020 at 10:34. |
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27 April 2020, 10:55
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#67 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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thanks for the tips
i am electrician, i repair commodore/amiga since 1990 i use one psu original for a500 and one meanwell for a570 now remove and verify the 7407 and recap |
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27 April 2020, 13:13
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#68 | |
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Registered User
Join Date: May 2019
Location: Manchester UK
Posts: 137
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Quote:
I wasn't trying to insult your capabilities my friend .. Just covering my back ..as this is a public forum..  Good luck ... I hope you get a good result. rgds VS |
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06 June 2020, 00:19
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#69 |
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Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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found 74ls07 dead
don't reset when i estract the caddy |
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