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I have a TS520S here that has a 27mhz crystal on the Aux position and covers 27.000 - 27.500 which I assume was a very common mod. I want to remove the 27mhz xtal as it is illegal over here in Australia and for the life of me, I cant find the aux position crystal location. I searched the service manual and it indicates that it should be on board x44-1160 but I cant see any added xtals on there. If you have any insight to where the aux crystal position is on the TS520S, it would be a great time saver.
My direct email is and would love to hear from you or anyone who has any clues to why I am going blind. haha
Cheers
Brenton
VK3CM

[G. Beat]

Kenwood TS-520S Owner's Manual
http://www.kg6haf.com/downloads/520S_manual.pdf

PAGE 25 -- Block Diagram for this transceiver.
NOTE Table 2 for MET Frequencies

PAGE 28 -- Schematic duagram of the RF Board (Figure 16)
NOTE that X44-1160-00 (Oscillator Coil Unit) is the Sub-assembly with these oscillator crystals (including AUX)

Kenwood TS-520S Service Manual
PAGE 16 of this manual shows the X-Ray of PC board and parts layout. NOTE: Crystal and Required Coil location.
http://www.kg6haf.com/downloads/520S_Service.pdf

WARC conversion or AUX usage, not really practical with 520/820 models -- that's why 530/830 exist !!