[TenTec] Scout Frequency Error
jones_winston at bellsouth.net
Sat Dec 22 20:47:09 EST 2018
I have Ten Tec 555 Scout with a frequency display that reads 100 Hz high on all bands.
Looking at the schematic of the counter logic board, I notice a trimmer cap (4-20 pf) in parallel with the 4.0 MHz crystal in the microprocessor circuit. It is labeled C3 on a pictoral of the board.
Is this the control I would adjust to bring the counter readout to the correct frequency?
If so, could this by accomplished by adjusting it to zero beat while tuned a known frequency, such as WWV at 10 MHz?
I’m not familiar with logic circuits, so wondering if it’s a simple adjustment or something that needs to be done by a technician in a well-equipped shop?
Any help would be appreciated.
73, Winston K4CWQ
Sent from my iPhone
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