1982 Zenith System 3 Problems

[zeno]

You need to find if this is a start problem or something else.
If the set does not start properly there is a resistor on the
small PCB (2 K IIRC) that will burn. Start process is....

The little board turns on & supplies a pulse to the hoz drive
This is the separate wire with plug.

The HV comes up.

A secondary B+ voltage is developed off the FBT & runs the horz osc IC.

The little board gets turned off & set runs.

If it does not start the set tries to run off the little board. It then burns
the resistor & sometimes transistors.

73 Zeno