Keithley 2000+2015 THD

[Rick]

Hello,
 
I have two flawn Keithley multimeters:2000 and 2015THD. For the 2015THD I would need the content of the two memories of 27C020 ( U156 , U157 version B07 ). It starts when I put the memories from 2000 but i don't think it is working in the normal parameters...where could I find the memory content? I am willing to trade the Keithley 2000. For the Keithley 2000 I have found the following errors when I run an internal test:
101.2
101.3
200.1
200.2
201.1
201.2
300.1
301.1
301.2
302.1
302.2
303.1
303.2
304.1
400.2
401.2
402.2
403.2
500.1
500.2
600.1
600.2
601.2
Do you think that there is a possibility for reparing the Keithley 2000? Maybe with a scheme...but I didn't find one! I could really use some advise from more experienced peers in the field!
 
Thank you very much!

Costas

I have exactly the same errors as you.
I have not measured anything yet.
May be the same problem?
My Keithley 2000 shows overrange and does not measure anything at all: volts, amps or resistances
I shall let it run a few hours to see if I observe the behaviour mentioned by Michl.
Besides that in
Ohm 2: it shows overflow or 0.0117 Ohm
Ohm4: overflow then a continuously switching relay sound with 0.087959 displayed
freq: 0.0 mHz
ACI: overflow
DCI: 0.20660 A
ACV: overflow
DCV: 10.506 V and as you change the range, the decimal point moves backward or forward.
in auto mode DCV: 10.5557 or overflow

[LEER333]

try to replace AD

[kloetpatra]

after more than 10 years he probably had the time to replace every component