3 Jun
2013
3 Jun
'13
5:19 p.m.
On Jun 3, 2013, Tony Duell wrote:
I didn;'t reverse-engineer the 85 because the
service manual is already
avaialble. It's called the 'assembly level' service manual, but it does
include full scheamtics (but no step-by-step comonnet level
troubelshooting).
I didn't realize that, I'd never read through all the war to the rear! There are
nice wave form and
voltages indicated at various points in the circuits, which should make troubleshooting
easier.
4 Jun
4 Jun
1:01 p.m.
On Jun 3, 2013, Tony Duell wrote:
'Never judge a book by its cover' (and 'NEver judge a service manual by
its title').
More seriously, I tend to read every avaialbe bit of docuemtation for the
hardware I am working on. Even boardswapper guides can contain useful
infroamtion -- perhaps pinouts od all the internal conenctors (which at
least will tie some signals down.
I didn;'t reverse-engineer the 85 because the
service manual is already
avaialble. It's called the 'assembly level' service manual, but it does
include full scheamtics (but no step-by-step comonnet level
troubelshooting).
I didn't realize that, I'd never read through all the war to the rear! There are nice wave form and
voltages indicated at various points in the circuits, which should
make troubleshooting easier.
At lest the PSU doesn't cotnain any custom silicon, and this certianly
sounds like a PSU problem.
-tony
4219
days inactive
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