timsmith@oasys.dt.navy.mil (Timothy Smith) (05/14/91)
Configuration: Mac Plus w/ original 800k floppy drive and external
hard disk.
Symptoms: First noted problem when system began repeatedly restarting.
Shut down when I noticed a curl of smoke coming out of the vents
above the analog board.
Since then, I've bought Pina's _Macintosh Repair Secrets_, and tried
checking voltages, resistances, looking for scorch marks etc. The
behaviour doesn't seem to be covered in the book: when the voltage
is turned low enough to avoid the flub-flub-flub sound made by the
the overvoltage protection circuit, the disc drive repeatedly (about
3-4 times a second) tries to eject a disc.
Blank screen, no startup bong.
Does anyone have any suggestions about what is wrong, or what it'll
take to fix it?
--
--- Tim Smith --- timsmith@dtoa1.dt.navy.mil ---- (301)227-1611 ---
--- Code 1522, David Taylor Research Center, Bethesda, MD 20084 ---
---------- I don't get paid enough to speak for the Navy. ----------