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Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 21:41
by valfac
Now I have one resistor of 470R and a capacitor. I understand that I need remplace the resitor for another with a value of 68R and desolder the cap, is correct it? :D

On the other hand, yes I have sim with 9 ics, then I should desolder the parity ic..
exxos wrote: 17 Jul 2020 20:52 Internal blitter machine needs mods to booster...

https://www.exxosforum.co.uk/forum/viewt ... =20#p41514

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 21:42
by exxos
valfac wrote: 17 Jul 2020 21:41 Now I have one resistor of 470R and a capacitor. I understand that I need remplace the resitor for another with a value of 68R and desolder the cap, is correct it? :D
Correct.

valfac wrote: 17 Jul 2020 21:41 On the other hand, yes I have sim with 9 ics, then I should desolder the parity ic..
Yes, Parity simms malfunction in STE's.

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 22:24
by valfac
Capacitor retired and resistor changed for a SMD 100R (less value I have in SMS 0805), and now the Blitter works well! :D

Official diagnostic cartridge Blitter test is PASS!

Now is time of desolder the ram parity,s ic.

Thanks for your great help! @exxos

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 22:26
by exxos
valfac wrote: 17 Jul 2020 22:24 Official diagnostic cartridge Blitter test is PASS!
:bravo: :girldance: :cheer: :cheer:

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 22:46
by troed
valfac wrote: 17 Jul 2020 22:24 Capacitor retired and resistor changed for a SMD 100R (less value I have in SMS 0805), and now the Blitter works well! :D

Official diagnostic cartridge Blitter test is PASS!
Congratulations! That's a nicely performed step by step implementation of likely solutions resulting in success :D

/Troed

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 17 Jul 2020 22:56
by PhilC
:bravo: and a thread full of useful info.

Re: Atari STE v1 BOOSTER ic2 burned

Posted: 20 Jul 2020 21:25
by valfac
Thanks!

Soon I will do a new post in "members blog" with my Atari adventures and misadventures :D

Greetings,