Jeffrey,
The uncal lights and x5 lights are still on. The uncal lights should turn off when you go to the detent position which you will feel. As others have said, the switch could be dirty making the light come on even though it is in teh detent position. Set triggering to a-c or d-c. Set the source switch, lower right corner, to int. Set the v/div switch to .2 or .5V/div and 1ms/div for horiz.. That should get the trace on the screen.
Having two A versions as well as the 453/A and 454, I know there are a number of resistors that are underrated in wattage that caused problems in mine. The 454A has ones that are lower power rated than is being dissipated, especially in the horizontal section. You could very well have resistors that are well out of tolerance or open. Clean the pins and sockets of the transistors. That will cause problems like you are seeing. If you want a list of parts I changed in mine, I will send it.
Mark
