[Yaesu] re: FT-301D FSK key polarity reverse

[Fred, N1DEC]

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Hi Sonny.=0D
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Looked at my manual on this also. The main schematic doesn't show=0D
the switch circuit. The main schematic shows a PB-1556B.=0D
It looks like it was added on PB-1556E version, which is shown on a=0D
addendum sheet in the manual.=0D
I haven't looked at my rig yet but I would guess I have the E model being=
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I have the addendum sheet.=0D
Which model board do you have? If it doesn't have a Q208 or a Q2007 then=0D
its an older model board and you would have to add 3 diodes, a switch, an=
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a npn transistor to make the inverter circuit. Let me know and I'll send =
you
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scan of the PB-1556E schematic sheet.=0D
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Fred=0D
N1dec=0D
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