81
INSTALLING OPTIONS
You will require a #1 Philips screwdriver to install the
VGS-1. To install the YF-107 IF filter(s) and/ or SO-3
TCXO, you will also need a soldering iron (approx.
30 watts).

REMOVING THE TOP COVER

When installing the optional VGS-1, YF-107 IF filters
or SO-3 TCXO, remove the top cover of the
transceiver:
1Remove the 8 screws.
PADDLE KEY
EXT.SP DATA REMOTE
COM
MIC PANEL
OPTION FILTER2
OPTION FILTER1
2Lift off the top cover.

VGS-1 VOICE GUIDE & STORAGE UNIT

SWITCH OFF THE POWER AND UNPLUG THE DC POWER
CABLE BEFORE BEGINNING INSTALLATION.
1Remove the top case (8 screws) {above}.
2Loosen the 4 screws to remove the shield cover.
PADDLE KEY
EXT.SP DATA REMOTE
COM
MIC PANEL
TCXO
OPTION
OPTION FILTER2
OPTION FILTER1
3There are 5 rubber cushions in the VGS-1
package. Use the 2 rubber cushions shown below
and attach them to the VGS-1. The remaining
cushions are not used.
4Plug the VGS-1 into the VGS-1 connector of the
PC board, pressing down on the top of the VGS-1
until secure.
PADDLE KEY
EXT.SPDA
TA REMOTE
COM
MIC PANEL
TCXO
OPTION
OPTION FILTER2
OPTION FILTER1
5Replace the shield cover and tighten the 4 screws.
6Replace the top case (8 screws).
Note:
After the installation, you can adjust the VGS-1 playback
volume by selecting Menu Nos. 14 and 15.

YF-107C/ CN/ SN IF FILTERS AND SO-3 TCXO

SWITCH OFF THE POWER AND UNPLUG THE DC POWER
CABLE BEFORE BEGINNING INSTALLATION.
Three different types of IF filters (YF-107C,
YF-107CN, and YF-107SN) are available for the
TS-480 transceiver. You can install a maximum of 2
IF filters in the transceiver. Refer to page 90 for the
bandwidth information on each filter. As for the SO-3
option improves the transceiver frequency stability to
±0.5 ppm.
1Remove the top case (8 screws).
2Locate the filter and TCXO PCB and loosen the
3 screws.
PADDLE KEY
EXT.SP DATA REMOTE
COM
MIC PANEL
OPTION FILTER2
OPTION FILTER1
TCXO
OPTION
3Unlatch the connectors by pressing the connector
tabs upwards.
PADDLE KEY
EXT.SP DATA REMOTE
COM
MIC PANEL
OPTION FILTER2
OPTION FILTER1
OPTION FILTER2
OPTION FILTER1
TCXO
OPTION
TCXO
OPTION
4Insert the IF filter(s) and/ or SO-3 TCXO.
OPTION FILTER2
OPTION FILTER1
TCXO
OPTION
VGS-1 connector
VGS-1 connector
VGS-1
IF filter/ TCXO PCB
SO-3
Calibration hole
Secondary IF filter Primary IF filter