I use a 750VA continuous 1500VA peak iso xformer.
I modified it so the input and output grounds are not connected (so the chassis of the TV can be grounded or floating, useful for making measurements with a grounded scope.)
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I've seen 240V isolation transformers with "power tool" ratings, if they're the same thing. (The power tool rating is an intermittent load, about 50% duty cycle.)
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You do need to test Voltages on the primary side such as PFC Voltage booster, the STBY Primary side drive circuit, the Inverter (for PS/INVERTER COMBO) drive ciruits, etc.
You do need to test Voltages on the primary side such as PFC Voltage booster, the STBY Primary side drive circuit, the Inverter (for PS/INVERTER COMBO) drive ciruits, etc.
That's what I said ,but you normally use a multimeter to test those voltages
but you need a CRO for xysus boards etc ,in this case a isolation transformer is not required.
You could run 3 or 4, or more, of those in parallel, should cover just about any tv's power needs.
When I was about 16 and extremely short on funds (IE, had to beg for money from my parents) I bought 10 35VA 120/12 volt surplus transformers from All Electronics. Wired all the primaries in parallel, and all the secondaries in series. Made a nice 350 watt isolation transformer for like $20 bucks. Still have it today, though I don't get to use it too often anymore.
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