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- Path: mn5.swip.net!usenet
- From: Torbjorn.Aronsson@mailbox.swipnet.se (Torbj÷rn Aronsson)
- Newsgroups: comp.sys.amiga.networking
- Subject: Re: 8520 circuts
- Date: 25 Jan 1996 23:11:59 GMT
- Organization: -
- Message-ID: <1321.6598T1271T1413@mailbox.swipnet.se>
- References: <1092.6595T1228T1829@mailbox.swipnet.se> <4e1vs5$lar@erinews.ericsson.se>
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- On 23-Jan-96 07:40:05, Linus Nielsen wrote in comp.sys.amiga.networking about Re: 8520 circuts.
-
- LN> The 8 data bits of the parallel port and the _STROBE goes to one 8520 and
- LN> _ACK, BUSY, POUT and SEL goes to the other. If one of the _ACK, BUSY, POU
- LN> SEL pins is broken the printer might work but not ParNet, as ParNet proba
- LN> changes the direction of these pins.
-
- LN> You could always try to swap the two 8520's and see if other problems sho
-
- LN> I don't know what Amiga model you have, but on my A500 the 8520's are cal
- LN> and U8. If you swap the chips and you get problems with the step motor or
- LN> disk I/O errors, then it is probably U7 that is broken. If you get proble
- LN> disk changes or with the power LED, then U8 is your problem.
-
- LN> Just some guesses looking at the A500 schematics, but worth a try.
-
- Hi!
-
- I have just replaced one of the 8520 and it still wont work, so i'll guess that
- i have to check my other (A2OOO) out to see if it's the problem.
-
- I have a A3OOO and as i just told you a A2OOO!
-
- Thanks for your reply!
-
-
- Regards
-
-
- Torbjorn.Aronsson@mailbox.swipnet.se
-
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