MS-702 TWO-CHANNEL MAIN STATION
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unit is shipped with the headset audio limiter on. You can turn this feature on
or off by using a jumper located on the main circuit board.
Note: This adjustment should only be carried out by qualified service
personnel.
To turn the audio limiter on or off:
1. Please observe anti-static procedures. Circuit cards can be damaged by
static electricity. Please ground yourself and tools before touching any
circuit cards.
2. Disconnect the unit from AC mains electricity.
3. Remove the cover of the MS-702 by removing the eight Phillips screws.
4. Locate the three-pin jumper labeled “J3” on the center frontmost
portion of the circuit card.
5. A jumper plug is located over pins 2 and 3. This is the on setting.
6. Do one of the following to turn the audio headset limiter feature on or
off:
• To turn the feature on, place the jumper plug over pins 2 and 3.
• To turn the feature off, place the jumper plug over pins 1 and 2.
7. Replace the cover of the MS-702.
8. Connect the unit to AC mains electricity.
RE-SETTING PROGRAM INTERRUPT OPTIONS
When you set one of the front-panel Program ON-OFF-INTRPT switches to the
INTRPT position, any talk signal activated on that channel interrupts the
program audio during the talk signal.
You can change this option so that activating a call signal, rather than a talk
signal, interrupts the program audio for the duration of the signal. You do this by
re-setting an internal jumper on the station’s internal circuit board.
Note: This adjustment should only be carried out by qualified service
personnel.
To re-set the program interrupt option:
1. Please observe anti-static procedures. Circuit cards can be damaged by static
electricity. Please ground yourself and tools before touching any circuit cards.
2. Disconnect the unit from AC mains electricity.
3. Remove the cover of the MS-702 by removing the eight Phillips screws.
4. On the main circuit board, locate one of the following:
• For channel A: The JP5 three-pin jumper, located in the center of the
circuit board.
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