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Old 17th May 2020, 10:27 pm   #57
staticmind
Tetrode
 
Join Date: Sep 2019
Location: Aalborg, Denmark
Posts: 97
Default Re: B&O Capri 606 TV (17") restoration

Hmm, there's something I don't get at ALL about the schematic and the voltages they show at the PCL84 pins.

For example Vg2= 145V, but this SHOULD equal the b+ voltage rail, as there is no dropping resistors as with EF80 in the image IF section.
As mentioned by PortugalTV, my b+ voltage rail is low, due to the selenium rectifier (maybe).
So why do they write 145V on the schematic, when it should be 180V? I don't get it.
Also according to https://frank.pocnet.net/sheets/030/p/PCL84.pdf there is no data for Vg2 below 170V. I'm really confused now.

Is the low (out of range) Vg2 the reason why Va equals the b+ voltage?
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