Hi knowledge team,
I acquired recently two 1061 meters, the second powers up but on hold whilst i work on the first meter.
The first had dried popped caps on the power supply which have all been replaced +-15 and 5VDC. I also found after checking on BB M31 was faulty, which I replaced with a TLC81 device be it DIL and in a socket on extended legs and the backup battery was totally flat which has been replaced.
I started to try and calibrate / check voltages as the manual states but I've noticed that when the HI LO input sockets are not connected together the meter starts to show voltage on the display , this increase to several 100V. After reading allot on line I've re-seated all chips, cleaned with acetone all DC and I/P relays. The fault is still there , the voltage does refer to zero when the I/P is shorted again so its a drift issue.
Other issues which may be connected, [I don't have cal keys] so I shorted out the switch , the CAL display at the front doesn't illuminate but illuminates if I do a TEST.
Also after doing a TEST , I have ERROR 5,6,7 then pass.
Before trying to work out what may be wrong I was just wondering if any one else had experience this problems and what may be causing them.
Any support will be most welcome.