Sentinel 400 No High Voltage

[Rudy18d]

Thanks Timmy. I already double checked the work I did on the capacitors, I will check again though. I was planning on dropping in the 1n4007 diodes to replace the selenium rectifiers once I was sure the unit worked, and the CRT was good. I have a universal CRT tester but not one for the 14 pin 7JP4.

@fumplet, the 400 I have has no fuse in line. I did see in the documentation it suggests that as an upgrade for the earlier models like this one.

Question, since the tuner chassis has AC and B+, could I not just inject 115v into the center tap of the voltage doubler in the video chassis to test the rest of the unit and see if HV even comes up?

Thanks,
Rudy