Revision B • 7/00
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4
5 Maintenance & Alignment
Circuit Board Removal
To remove the circuit board from the faceplate:
1.
Unplug all faders, pots and switchboards,
as applicable.
2.
Remove the Assignment switchboard sup-
port screws.
3.
Remove the circuit board mounting screws.
4.
Separate the circuit board from the faceplate.
Reassemble in reverse fashion, ensuring that
the switchboard buttons and connectors protrude
through the faceplate without binding.
SIM Circuit Card Removal
1.
If necessary, remove the circuit board from
the faceplate per the previous instructions.
2.
Using antistatic material, set the circuit
board trace side down.
3.
Press out on the two metal switchboard lock-
ing clips while lightly pressing on the bot-
tom of the circuit card. The board tilts out
of the locking clips toward the switch or
component side.
4.
Lift and remove the SIM card from the SIM
socket.
SIM Circuit Card Installation
1.
Using antistatic material, set the circuit
board trace side down.
2.
Insert the SIM card with the edge contacts
inserted into the SIM socket at about a 45º
angle, with the switches/components angled
down. The board is keyed so it will only
mount in the correct orientation.
3.
Press the circuit card into the socket while
moving it to a vertical position. The locking
clips will snap and hold the board in place.
When correctly positioned, the circuit card will
be vertical to the circuit board and the two SIM
socket alignment tabs will be set into matching
holes on the SIM card.
On/Off or Talkback Switchboard Removal
1.
Remove the circuit board from the faceplate,
per previous instructions.
2.
Remove the #1 Phillips screws, lock wash-
ers and washers from the switchboard to re-
move it from the faceplate. There are two
screws on the Talkback switchboard and
four screws on the On/Off switchboard.
3.
Unplug the flat wire cable from the switch-
board connector. Note its orientation.
Optional “B” Logic Interface Installation
1.
Using antistatic material, set the module
with its circuit board trace side down.
2.
Position the “B” Logic card’s 24-pin logic
connector into the faceplate opening at an
angle in order to insert the card’s P1 con-
nector into the circuit board connector pins.
When properly mounted, the two 24-pin
logic connectors will be physically aligned.
MONITOR MODULE
The Monitor module has two circuit boards on
one faceplate. Prior to removing the Monitor mod-
ule, unplug the headphones from the module and
turn off the external amplifiers for the Control
Room and Studio monitors and headphones. This
prevents possible transient noise damage to the
loudspeakers and headphones.
The Monitor 1 circuit board must be removed
in order to remove the Monitor 2 circuit board.
All of the faceplate components—pots, headphone
jack, Talkback mic, and the Monitor 2 circuit
board, plug into the Monitor 1 board.
AirWave uses sealed pots that do not require
“cleaning.” If it becomes necessary to replace a
pot, remove the Monitor 1 circuit board from the
faceplate by unplugging all cabling and removing
the three mounting screws. Remove the colored
end cap from the knob by prying it loose. Use the
70-44 Sifam Knob Removal Tool to loosen the lock
