Have you checked the position of all the jumpers on the storage board?, a lot of Ebay scopes come with them in diagnostic position.
My U2101 is pt no 234-0408-20 (Later version)
Pin 6/11 of U2101 -1.6V
Settings 1 Khz 1 Volt sinewave, CH1 0.5V Timebase 0.1mS
Pin 2/15 2v DC shifted 2V p/p square wave 4mS period (Dependent on T/B and flickering unless you toggle the onscreen display).
Pin 12/13 5.8VDC, no visible superimposed signal even at 2mV/cm on monitor scope unless CH1 input is overdriven.
I just happen to be working on a 2230, it will be back together shortly so if you need more info make it quick.
JC
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--- In TekScopes@..., "david_s5y" <david_s5@...> wrote:
I am trying to trouble shoot the missing storage traces. Does anyone have the DC voltage levels for Pin 6 and 11 of a working U2101 (MO36E). I am seeing +5.6 Volts which seems intuitively wrong give the 511 Ohm to -5 Volts.
For that matter with a 1Khz 1V sin wave applied to chan 1 set to .5 V per. What should I see on 2 and 15 and 12 and 13?
Thanks for your help!
David
