Thanks all, but the links suggested did not have any
schematics, manuals, etc. (www.tenma.com just
redirects to an MCM site with info and price, etc.)

BUT! I called Tenma (actually MCM who sells this
made-in-Taiwan special) and they referred me to
Sypris, who do their warranty maintenance.

There a fine young lady copied the schematic and
emailed it to me. What a surprise, real customer
service, albeit in a round about fashion.

I am ready to jump on that low intensity problem now.

Again, thanks to all and if any one needs this schematic,
just let me know.

phil


Help! (again)

I bought a semi-working Tenma model 72-6602 oscilloscope
and it showed up without a manual (or any documentation.)

Does anyone have a schematic or manual or any docs for
this unit? Google choked on this one...

etc. . .