clh333
Active member
I acquired an SE about a month ago - first one I have owned - and recently posted here a question concerning printing from the SE. (I have a StyleWriter and couldn't make it work with the SE / OS 6.0. .
Since then I have been running tests on the machine and today ran Snooper 2.0, which diagnosed a problem with the serial port. The first pass tested the modem port, which failed at all speeds tested, but skipped the printer port as Apple Talk was on. I turned off Apple Talk and repeated the test: This time both ports failed.
I understand there is a Zilog Z8530 chip which controls both ports. I am assuming that is responsible for the problem. But before I dig out the board I would like to ask whether any other diagnostic test could be run to confirm the problem. Also, if anyone has a suggestion for how to approach the repair I would welcome their input. For example are any other related chips suspect?
Thanks for your replies.
-CH-
Since then I have been running tests on the machine and today ran Snooper 2.0, which diagnosed a problem with the serial port. The first pass tested the modem port, which failed at all speeds tested, but skipped the printer port as Apple Talk was on. I turned off Apple Talk and repeated the test: This time both ports failed.
I understand there is a Zilog Z8530 chip which controls both ports. I am assuming that is responsible for the problem. But before I dig out the board I would like to ask whether any other diagnostic test could be run to confirm the problem. Also, if anyone has a suggestion for how to approach the repair I would welcome their input. For example are any other related chips suspect?
Thanks for your replies.
-CH-