Toa HF-250M, Operating Instructions Manual

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3. Internal speaker volume (L/H) adjustment
Select the internal speaker volume setting (L/H) that best suits the mounting location.
4. External speaker connection
If the internal speaker's volume is insufficient, refer to following procedure to connect an external speaker
(4-8
) to the station.
Open the case and cut jumper wire JP3 or R82, located at the upper left-hand corner of the printed
circuit (PC) board.
Note : Sound from an external speaker is not reproduced when the jumper JP3 or R82 is cut.
Remove the underside terminal cover and connect the speaker cable to the EXT. SP terminals.
Terminal cover
Speaker cable
External speaker terminals
Microphone sensitivity control
Speaker volume control
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