16 Jun
2006
16 Jun
'06
3:56 a.m.
On 6/16/06, Roy J. Tellason <rtellason at verizon.net> wrote:
Occasional as in "sometimes the machine is dead because of a fried
DRAM", not "sometimes a hot DRAM is fried".
-ethan
On Thursday 15 June 2006 09:43 pm, Ethan Dicks wrote:
True enough. It's mostly useful for debugging keyboard and joystick
ports (6526s)
(unless you happen to have a C-64 diagnostic
cartridge and cable
harness, a tool sometimes used by C= dealers for debugging _mostly_
dead machines).
I have that setup, and it really doesn't do all that much, and surely
doesn't work on most all of the machines that I have encountered that gave
the "blank screen" symptom. We got it because we were a c= "factory service
center" at the time. I still have it someplace, but have no idea where it
is and am not too worried about finding it. :-)
I have a couple myself that I got from a defunct C= service center.
If any of the
DRAMs feel _really_ hot (too hot to keep your finger on),
that's a symptom of fried RAM, an occasional cause of inertness.
Occasional?