Yaesu FT-5100, Technical Supplement

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Servicing
FTS-22
Tone Squelch Unit Installation
The FTS-22 includes an encoder and de­
coder for 38 BIA standard subaudible
CTCSS
tones, programmable from the front panel of
the FT-5100. It provides silent monitoring of
busy channels when activated by the EN­
Code/DECode Tone Squelch function. Tone
squelch operation on both channels or bands
requires only one FTS-22. See the
Operation
chapter of the Operating Manual for func­
tional details.
D
Disconnect the power cable, and turn the
set upside-down. Referring to Figure 1, re­
move the six screws affixing the bottom
cover, and remove the cover.
Figure 1.
D
Referring to Figure 2, locate unused 12-pin
connector JSOOS inside the front panel.
D Peel the covering from one side of the dou­
ble-sided tape provided with the FTS-22
and stick it on the top of the VCO housing
just behind J5005.
D Note in Figure 3 how the FTS-22 cable
routes over the top of the board. Plug the
FTS-22 cable into J5005. Then peel the cov­
ering from the exposed side of the tape, and
press the FTS-22 onto it.
D
The factory adjusts the output tone level
(VRl on the FTS-22) for the proper devia­
tion, so it should require no further adjust­
ment.
D
Replace the bottom cover removed in the
first step.
Figure 2.
Figure 3.
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FT- 5100 Technical Supplement