GAI-Tronics 12504-009 Front Panel Control Replacement for EZ Page Intercom - Manual (Page 3)

Pub. 42003-177A
M ODEL 12504-009 EZ P AGE F RONT P ANEL C ONTROLS R EPLACEMENT K IT Page: 3 of 3
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3. Insert the new speaker volume/on-off switch (R1/SW1) through the heatsink plate and through the
front cover. Ensure that the associated anti-rotation pin is properly inserted into the amplifier heatsink
plate’s locking notch and the attached wires are positioned towards the fuse holder. Refer to Figure 1
and Figure 2.
4. Place the new smaller sealing nut over
the speaker volume/on-off switch’s
shaft and lightly tighten against the
front cover.
5. Ensure that the new Listen/Talk
switch’s supplied hex nut is screwed
tightly against the switch body.
6. Install the supplied anti-rotation ring
(locking tab towards heatsink plate)
onto the Listen/Talk switch’s mounting
threads.
7. Insert the new Listen/Talk switch
through the heatsink plate and front cover.
(Position the bat handle towards the L
ISTEN position as indicated on the front panel label.
8. Place the new sealing nut over the bat handle and tighten against the front cover.
9. Tighten the speaker volume
on/off switch’s sealing nut
against the front cover.
10. Reconnect the P3 connector to
the PCBA.
11. Carefully reinsert the front
panel assembly into the unit’s
housing. Use caution to not
pinch any wires between the
front cover and the housing.
12. Reinstall the six front cover
screws and tighten securely.
13. With the new speaker volume on-off switch fully counterclockwise, attach the new knob. Position the
knob’s white dot adjacent to the off dot on the front panel label and retighten both set screws using the
hex allen wrench.
14. Reapply power and check for proper operation.
Figure 2. Speaker Volume/On-off Switch Assembly
Figure 3. Listen/Talk Switch Assembly Diagram