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  1. G

    Help identifying a coil on Nanao MS9 board

    Awesome, thanks for the info and recommendation. I'll post what I've found there and see what info I can get.
  2. G

    Help identifying a coil on Nanao MS9 board

    I put a load on B+ using a 40W light bulb and got nothing, no light and meter reads 0V. If I connect the light to the primary side it lights up and I get a reading. So I guess the transformer is bad? I'm guessing this is a custom built transformer so I'm not going to find a drop in replacement...
  3. G

    Help identifying a coil on Nanao MS9 board

    I have no load on B+, do I need one? FWIW even when I had pin 2 soldered in I still got 0V on B+. The transformer has 2 different windings on the secondary side, so even with no load on the high voltage winding (75/117V) for the flyback I would expect there to be voltage on the low voltage...
  4. G

    Help identifying a coil on Nanao MS9 board

    So I ended up just wrapping the coil with shrink tube and putting it back in. I finished replacing all capacitors except for C911 (the big on the primary side) since it's on order atm. I connected everything back up but the monitor still does not turn on. I checked B+ voltage and was getting 0v...
  5. G

    Help identifying a coil on Nanao MS9 board

    Yup that's the exact manual I was looking at. Those secondary numbers I assume are something you could get from the manufacturer of the arcade cabinet the manual was for, but fat chance of that happening now. I tried to look up how I could measure the inductance of this thing but couldn't find...
  6. G

    Help identifying a coil on Nanao MS9 board

    I have a Nanao MS9 board I pulled off the CRT in an Astro City cabinet that I am trying to repair. There is some sort of coil at position L504 that is falling apart and I want to replace it, but I haven't been able to find anything online based on the part number "623A1 R". I found some old...
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