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When connecting the optional HM-174 WATERPROOF
SPEAKER-MICROPHONE, HM-175GPS GPS WATERPROOF
SPEAKER-MICROPHONE or PC-1799 DATA COMMUNICATION
CABLE, OPC-1797 CONNECTION CABLE to the [DATA/SP/MIC]
jack, follow the procedure below.
• Connecting to the [DATA/SP/MIC] jack
q Remove the rubber cap. from the [DATA/SP/MIC] jack.
w Set the connector's fl at face and the [DATA/SP/MIC] jack's
flat face to same direction, (Verifing square mark) then
insert it tighten.
e Rotate fix screw clockwise tighten to fix the connected
cable.
• Disconnecting from the [DATA/SP/MIC] jack
q Rotate fix screw counter-clockwise to loose the con-
nected cable.
w Disconnect the cable from the [DATA/SP/MIC] jack.
e Put the rubber cap tighten to the [DATA/SP/MIC] jack..
■ Connecting to the [DATA/SP/MIC] jack
CAUTION!:
Turn power OFF the transceiver before connecting/
disconnecting cable to/from the [DATA/SP/MIC] jack..
Rubber cap
[DATA/SP/MIC] jack
[DATA/SP/MIC] jack (Upside view)
Flat face
Triangular mark
Connector (Side view)
Flat face
Triangular mark
Rotate the fix screw tighten.
No Sound from the inside
speaker when connecting
OPC-1797.