This brings up
another point. If you do component-level repair, then a
single replacement board might act as donor to repair more than one
machine [...]
Yeah, I have considered that too. Being lazy, I would probably opt
for swapping out a board with a bad component before I would try to
I'm lazy too, which is one reason I replace componments and not boards.
It's less effort to find a replacement chip (in a box near my workbench)
than to find the replacement board (if I have it, it'll probably involve
moving several other machines to get to it...)
repair/replace the individual component. For
instance, I have some
spare Lilith boards, including one marked "bad", but given that boards
It saddens me that anyone would conasider board-swapping a machine as
beautiful as that.
for these machines are so rare, I am not going to
chuck the board
marked "bad" in case it comes in handy for a future repair.
Reminds me of one of my HP9910s. It had clearly been owned by a
board-swapper, and it had been the donor for spare boards. Fortunately,
the defective boards were not thrown out, they were stuck in this
machine. Some of the boards had a cross drwan on them...
When I got it, there were daults on 3 of the 4 CPU boards, all 3 of the
memory control boards (fortunately the ROM and RAM boards themselves were
fine), the display board and the keyboard encoder. And yes, I did track
them all down in the end....
-tony