Check your unit. There are apparently two different setups for the horizontal oscillator/HV section. One version has the oscillator and flyback all one one board, which is located under the shielded HV box. Mine was different and I think the later rev. The oscillator section was on one board, with the flyback/HV portion being a separate board which was under the shielded HV box. The fuse was on the oscillator board. If you have to do any repairs to the HV supply you’ll have to check and possibly reset the CRT high volts. The value is written on your flyback and that procedure is also in the SM. Bear in mind, it’s around 4KV so it can kill you dead.?
