I continue to try and repair a CRT TV. The set's main SMPS is a discrete, self oscillating design. The set powers up for a few seconds and then shuts down; I think the Micon controller chip releases the AC relay. The B+ open circuit voltage is 139V (ie disconnected from the horizontal output). When a 60W bulb is substituted as a load for the 'horizontal', the voltage is zero, not a glimmer from the bulb. How can the B+ power up the set, albeit briefly, but not light the bulb? Is there a problem with a simple resistive load? Is it possible that the horizontal stage is essential to the operation of the SMPS? Any thoughts please?
BobH