Hello all: Having replaced the PSU (ref. 2465B Power Supply Precautions) have just powered on, J119 voltages perfect, test have some issues eg TEST 05 FAIL 42, but basically working.
Had no trigger, trigger lever stuck at -435 mV, CH 3 unstable vertical,
With Iso Alchol injected in the trigger lev pot, the trigger was improved on NORM only, NO trig on AUTO/LVL and AUTO.
U500 Trigger hybrid pressing the HS makes the AUTO/LVL and AUTO work!
QUESTIONS: I have never touched a Hybrid on 2465B.
what is the safe procedure to remove the HS, clean contacts, and replace?
Use contact cleaner or just IOS alcohol? (do not have DeOxit handy)
How to prevent cracking due to wrong HS position or torque?
MANY THANKS
Jon
Jean-Paul