Thanks Chris.
I'm beginning to think my 5370B is heading towards a boat anchor.
We (as in all time-nut owners of 5370s) seriously need to research a
replacement part/circuit for the 7061/7062 parts.
Jim
On 22 December 2015 at 07:44, Christopher E. Brown wrote:
>
> You might want to re-scope
You might want to re-scope the start and stop channel outputs where they cross
A4 and
verify against the front panel labels.
The signal line crossing A4 that lines up with frontpanel start is start and
the one that
lines up with stop is stop.
I mention this because the A3 board is a carry ove
Oops yes! I looked up the wrong item. I meant A3U1 which is 5088-7061
Jim
On Sunday, 13 December 2015, Cok wrote:
> According to the partlist A4U1 and A4U2 seems to be TL072CP opamps.
>
>>
>> jim77...@gmail.com said:
>>
>>> I have gone through the troubleshooting process from the manual and it
Yes I've been through the process in the service manual with an
oscilloscope and the part number of the Schmitt trigger (apologies for the
auto-corrected spelling above) is TL072CP.
What I'm after is any "gotchas" or hints before I head down this path.
Jim Palfreyman
On 13 December 2015 at 18:
According to the partlist A4U1 and A4U2 seems to be TL072CP opamps.
jim77...@gmail.com said:
I have gone through the troubleshooting process from the manual and it seems
to point to A4U2 (Schmidt trigger) being faulty.
I'd put a scope on it to check.
Before I dive into this, does anyone have
jim77...@gmail.com said:
> I have gone through the troubleshooting process from the manual and it seems
> to point to A4U2 (Schmidt trigger) being faulty.
I'd put a scope on it to check.
> Before I dive into this, does anyone have any advice? Most important being
> the Schmidt trigger - where
Hi all,
My stop trigger has stopped working on my 5370B (a while back - just
getting around to fixing it).
I have gone through the troubleshooting process from the manual and it
seems to point to A4U2 (Schmidt trigger) being faulty.
Fixing this looks like a decent job of: sourcing a part, removi
