I have a long, poorly-copied equivalents list that
covers most of them.
Other s I have found out by seeing chips marked with both numbers. HP
service manuals which include component-level info are another useful
source.
Ok, then I've a request for you... ;-))
What about to scan the list and put it on a web site? It could be
unbelievable usefull to who is trying to repair a hp unit.
I didn't find these info anywhere on the internet.
Is it too long to do?
But having looked at the board, I don't think there
is a -ve supply.
As my supposition.
I have now found it, unscrewed the cover and pulled out
the controller
board. More info a little later.
Thank you.
I would be suprised, alas, if it contains scheamtics
:-(. Most later HP
computer product service manaulas are, alas, boardswapper guides.
Yes, I know. I don't hope to find schematics, but the missing procedure to
check the read frequency oscillator is a good starting point, also to
recalibrate it.
Roberto