My son can hear the monitor whine, but it otherwise seems dead. We were able to find a composite video output to try an external monitor but the syncing is a mess. Any advice of what to try next? Should I get over my fear of working on CRTs?

0:00 Preview
0:14 Introduction
0:46 Keyboard LEDs
1:07 Internal inspection
2:11 Video connection
3:36 Checking voltages
4:33 CPU clock
5:24 Video signals
7:33 Contrast knob
8:59 12V regulator
10:11 Composite video
11:14 Qume card