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 Post subject: Re: Bending Raster in Pilot TV-37
PostPosted: Jul Sat 24, 2021 1:18 am 
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Joined: May Mon 24, 2021 3:33 pm
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Location: Chapel Hill NC
C2 (80 uF) is the input cap. If you increase it, you might want to make sure that the 10 resistors in (M4 pin 3) and out (R85) of the 35W4 are in good shape and the right value. The increased initial inrush current to the larger cap will stress those (and the 35W4 they protect) a little more.

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Mark Nelson
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 Post subject: Re: Bending Raster in Pilot TV-37
PostPosted: Jul Sun 25, 2021 11:45 pm 
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Joined: Oct Sun 04, 2015 5:50 pm
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Location: Raleigh, NC 27675
Thanks, Mark. The 10 ohm element in the ballast is good because the latter's been rebuilt with power resistors. Interestingly, R85 wasn't present in my TV. According to the Sams, that was "Not used in all models." Any value in adding that resistor?

Dave


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 Post subject: Re: Bending Raster in Pilot TV-37
PostPosted: Jul Mon 26, 2021 1:28 am 
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Joined: May Mon 24, 2021 3:33 pm
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Location: Chapel Hill NC
If it wasn't used regularly I guess it could be left out OK. In that location in the circuit, it may have been included as a sort of poor man's fuse in case of a short in the B-.

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