Thanks, there a lot of questions. I will try to answer them all:
- There is a little arrow indicating pin 1, my question was on the order of the pins (clockwise, counter clockwise) I discover that they go in order 1 on top, 2 on the bottom, 3 on top next to 1, etc. And you are correct is very easy to get signals there.
- I made notes on the signal of J521 on my working 2465 and compare them with the broken scope, they match. I was hoping for a signal that did not show on the connector indicating that I had a short on that pin but no luck.
- All the lights in the front panel lights up as supposed to. When you move the coupling selection leaver up and down, the 1Meg, ground, cd, 50ohm, the corresponding light is lit but there is no clicking of the relays. All the other lights are find. The only thing that I notice last night, before I was going to bed, is that the A/B trigger, shows "run" but it doesn't stay on the B trigger, did not check if the behavior is the same on the good scope.
- The only time that the scope has not passed the self test is when I have taken one of the hybrids to check the voltages inside the socket. Once the hybrid is back in place doesn't complaint at all. It does not click the relay on the first startup.
I was reading and deciphering the functioning of the relays and it is not very complicated, my suspicion is that somewhere I'm loosing signals on the main board. This evening I'm going to check all the voltages to all the chips on the main board to make sure that there are all working. I will do the same with data lines, making sure that they are connected to where the control board connects.