My Tek 2445 oscilloscope displays the following on-screen error codes on each startup.
"CT Test 86 Fail 02" "CT Test 87 Fail 04"
I assume CT refers to the "confidence tests". Meaning the scope will operate after the "A/B Menu" button is pushed.
I referred to the service manual, but could not correlate the above numbers with the table shown on page 6-11. There is no reference to numbers like 86 and 87.
Can someone with experience on this great piece of gear please throw me a line. It's my all-time favorite scope and I would hate to loose it.
Jim Damon