convert old tv pda to power sources

MisterBill2

Joined Jan 23, 2018
17,736
Without having the actual circuit it is very difficult, probably impossible, to give more than a random guess.
In a TV switcher power supply there is some portion active whenever mains power is connected. Then a control signal from either an actual switch, or a remote control receiver initiates a power supply startup sequence.
So without a circuit schematic diagram you have a collection of parts in a PCB, nothing more.
Unless some TV service professional recognizes the circuit board and has the correct information. THAT is not me.
 

MisterBill2

Joined Jan 23, 2018
17,736
This is not even close to a full schematic of the power supply. I see what might be the power transistor but not much of the control circuit connections. I see only one of the four opto isolators mentioned, and none of the controls.
 
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