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MFJ-8621 Data Radio Recrystalling

Solution
to install new crystals in your 8621 do the following:
1. remove 8621 cabinet lid (one screw on each side).
2. locate and remove the existing transmit crystal (Y3) from its socket.
3. carefully plug the new transmit crystal in its place.
4. lolocate and remove the existing receive crystal (Y2) from its socket.
5. carefully plug the new receive crystal in its place.
6. for future reference, label your pull-out crystals for operating frequency and store them in a safe place.  anytime you install new crystals, you must readjust L4 and L6 for exact frequency calibration on the new channel.  do not attempt to operate your radio until this calibration procedure has been completed.
Article details
Article ID: 95
Company: MFJ
Date added: 2017-01-12 14:57:06
Views: 19

 
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