19 Apr
2005
19 Apr
'05
9:58 p.m.
On Tue, 19 Apr 2005, Mark Davidson wrote:
My big question is how to
remove the front or side panels. I know the front panels should "pop off",
but I tried pulling one or two and they are on tight.
PULL HARD!
3) Pull out the drive and check the heads... and pray
they locked the heads
down; once that's verified, I'd unlock them
Buy some lintfree swabs, 99% alcohol and clean 'em anyways. I
found it simply easier to remove the big metal cover from the
drive, loosen the screws holding down the plastic cover of the
heads, slide it back 1" (without otherwise removing it) and
getting a good clean shot at inspection and cleaning.
At least my 6070 has a toggle switch inside, on the servo board,
that disables the head servos; DISABLE, power the drive up switch
to RUN and let it purge for an hour; this is recommended in the
service docs. The platters will spin, brush cycle runs, air pumps,
presumably flings off all the dust.
4) Apply power individually to the units (tape, CPU,
disk). Make sure they
power up ok.
Most peripherals are pretty much stanalone; the tape drives will
mount, BOT, rewind, etc with the CPU off. It helps.
Suggestions are most welcome... it's been years
since I worked with one of
these beasts. I'm only a "semi" hardware guy... I can do some checking,
but
I don't have a lot of diagnostic experience with these machines.
I'm OK with hardware but I'm no DG expert. This is my only
minicomputer. Bruce Ray knows a lot though. I assume you've seen
www.simulogics.com...