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You will require a #1 Philips screwdriver to install the VGS-1 or SO-3 TCXO. You will also need a soldering iron (approx. 30 watts) to install the SO-3 TCXO.

Switch OFF the transceiver power and unplug the DC power cable before performing any installations.

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When installing the optional VGS-1 or SO-3 TCXO, remove the bottom case of the transceiver:

1Remove the 10 screws.

2Lift off the bottom case.

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1Remove the shield cover (4 screws).

2There are 5 rubber cushions in the VGS-1 package. Use the 2 rubber cushions shown below (20 x 30 x 2 mm and 21 x 21 x 2.5 mm) and attach them to the VGS-1.

• The remaining cushions are not used.

3Plug the VGS-1 into the VGS-1 connector of the PC board, pressing down on the top of the VGS-1 until secure.

4Replace the shield cover and tighten the 4 screws.

5Replace the bottom case (10 screws).

Note: After installation, you can adjust the VGS-1 playback and voice guide volume by selecting Menu Nos. 05 and 06.

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