Re: Req: Help with a sick IIC !!!

[Jan <jankro@vip.fi>]

Yes, I tried three different disk drives,and I tested the boot floppies
on my 2E.
On PRODOS I get "Unable to load PRODOS" and on DOS33, I�ll get the Hex
or assembler message.
I know that the chips are soldered, I removed each one and replaced them
with a socket and a chip. (I did it on two boards ;-) ).
After this, I�ll got one working as far as to getting the PRODOS welcome
screen and then it jus freezes and does not go as far as cursor
appearing, and the disk stops. After c control+reset if I try to enter a
command, all I get is a beep+sybtax error (yes, I have caps on).
Jan

Phoenyx wrote:

> Hi Jan
>
> > I�m not sure about the self test, but if it is open+closed
> > apple+control+reset, the following happens: no text, just graphics
> > that keep repeating. On the other IIC, I hear tick, tick, tick....
> > How long should I wait for the test to complete?
>
> The graphics is standard on the 2c tests. On mine, it displayed
> several screens then stopped on a text screen. I think the later
> models actually displayed a text message if ok. If yours showed
> more than one screen, it should be ok, but you may still want to
> try a ram tester.
>
> One thing to note, this test does not check the floppy drive. Your
> problem may be related to a misaligned floppy or dirty head. But you
> said you tried another drive so we go back to the floppy disk. In
> this case you need to test the disk on a known Apple II system.
>
> As for changing the ram, I think that is soldered to the
> motherboard. Not a job to take lightly.
>
> --
>
> Cheers and best wishes,
> Phoenyx
>
> Have you fed your Apple today?
>
> Phoenyx's Pages are back online...
>
> It seems the ZIP.TO link was down for a while.
> It is now working again. This is the preferred
> link to my site. You may also use the direct link.
>
> http://zip.to/Phoenyx_A2
> http://www.tinyangeldesigns.com/Apple2