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So far I am looking at the HR Diemen model HR 7718 flyback transformer as a possible substitute part. I have zero experience in substituting a part like this and was wondering if anyone had some pointers or good links to read up on before I attempt to replace it with an unknown part? I came to this as a possible part by ohming out the pins on the defective flyback to get an idea how each winding was connected. I did find other 10 pin flybacks that were similar but they all had pin 3 tied to a winding that does not appear to be used on the existing part and is tied with pin 7 on the pcb. the following parts are ones that I have found but there may be others.
HR 7328
HR 7461
HR 8185
HR 8204
HR 8752
HR 8772
HR Dieman does not show resistances in its schematics but does show voltages going into and coming out of the windings. is their anyway to power on the TV without a flyback installed to get an idea at least what the primary input voltage is? The TV appears to have a 123V B+ but it appears to go through a 4.7 ohm 5 watt resistor before going to the primary, im guessing I can do some math to figure out what this resistor would drop the voltage down too, if need be? Forgive me if im a bit clueless here but I seemed to have learned some knowledge about electronics but skipped some of the important basics. Thanks!
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