[DSP-10] Continuing troubleshooting

[Scott]

Not familiar with the schematics, but I would say the +10T would go to 
+10V when switched to TX mode.  If you have 0V, is there a 10V regulator 
(perhaps 7810?) that could be bad.  If so, is there voltage at the input 
to the regulator?  If there is and no output, it could be a bad 
regulator IC or the +10T line shorted to ground.  If you have a link to 
the schematic, send it to me and I'll take a look.

N0EDV
Scott


On 4-12-2013 21:02, Perry Ogletree wrote:
> ??????????????????????????????????????????
> -----Original Message-----
> In tx mode, the +10T line is zero.
> ??????????????????????????????????????????
>
> Isn't the +10T line supposed to be +10 volts IN transmit, not 0 volts.  As I
> recall, that line was the power for the PA chain. That would explain your
> low power readings!
>
> Perry - K4PWO
>
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