Interesting, these roms are mine's:
http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Solartron_7061_ROMs.zip
I have also a problem with statistics,
seem that the standard deviation calculation is
wrong:
http://www.febo.com/pipermail/volt-nuts/2012-April/001793.html
If you have time to test yours for this I would be grateful.
Another thing is that on mine SP1 and SP2 on floating board are both
open circuit.
Fabio.
"J. L. Trantham" <jlt...@att.net> ha scritto:
Fabio,
Thanks for the link to the pictures. I never seem to remember eevblog when
it comes to looking for stuff.
Your pictures show that your Earthy board is completely different from mine
in the area of 'B101'. You have no place for B101. Also, your Floating
board is different in that you have the 'CA' firmware and 28 pin EPROM's. I
wonder if anyone has modified my 'version' of the Floating board to use 28
pin EPROM's and if there would be any utility to doing this.
I did not get a message directly from you (that I recognized at least).
I'll try to send you one directly to make sure we can 'establish
communications'.
Joe
-----Original Message-----
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:14 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Here are some pics of the mine, only one battery:
http://www.eevblog.com/forum/product-reviews-photos-and-discussion/solartron
-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" <jlt...@att.net> ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
1. Does anyone have a 7061 with this battery and resistor installed?
2. If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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