INSTALLING MESSAGE ANNOUNCEMENT OPTION CARD (SPCH0x)
The kit includes the following items:-
1 X MESSAGE PCB (SPCH01 VER 1.2)
1 X 6 WAY HE14 CABLE ASSEMBLY
4 X 18mm TYPE 4 PCB PILLAR
4 X M3x6mm BRASS MACHINE SCREW
4 X M3 SHAKEPROOF WASHER
4 X M3 FULL NUT
ENSURE THAT THE DC POWER IS OFF
BEFORE WORK COMMENCES
Identify the four holes in the INTERCOM MAIN
PCB through which the new PCB pillars will be
mounted. These are shown in black squares on
the adjacent drawing.
One at a time
, place a
shakeproof washer on an M3 screw, insert the
screw through one of the holes, from the BACK of
this PCB.
Screw a new 18mm PCB Pillar on to this screw
(do not fit any extra nuts or washers) and tighten
(the shakeproof washer will prevent the screw
turning when the pillar is tightened). Repeat for
the remaining 3 pillars.
Place the speech PCB on to the new pillars, in
the orientation shown in the drawing. Place an
M3 plain washer on to the 4 studs which now
protrude through the speech PCB and screw an
M3 full nut on to each.
Connect the 6 way HE14 cable between the new
speech PCB and the main intercom PCB below.
NOTE : These plugs are polarised and will
only fit snugly in the correct orientation! PLEASE TAKE CARE!
When installation is complete, adjust the control on the MAIN intercom PCB marked "R13"
(MESSAGE GAIN) to fully anti-clockwise. Apply power to the system. Press the call
button, and the message will begin to play. Adjust the preset control on the SPEECH PCB
marked "OUTPUT" until the volume level of the message is correct and balances with the
speech from the control centre.
NOTE : Adjusting the preset control on the SPEECH PCB may interact with the overall
volume output, so these two controls should be adjusted to give optimum balance.
Finally, adjust the control on the MAIN intercom PCB marked "R19" (OUTPUT LEVEL) to
give the required overall output level to the speaker.
DOCUMENT NUMBER AV102SS/OEM/01 REVISION 6.1 1st August 2006 Page
15
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