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and right ChanI181s will carry the same signal.
l'loving S9 to
"mic 2" position, SVli-tch8S microphones connected to terminals
3 and 4 into the channell pre3.mps.
The function of 812, the
mono'-stcrco switch, remains the salla with microphone
3
feeding
both 1uft and right char.ne1s (vlhen 812 i.s placed i.n th0 "mono"
position).
Refcrence to the fUilctiona.l block diagram, drawing
842 3492 001, wi 11 hGlp clarify these; functions.
Channel 1
microphones should be located in the same studio as the speakurs
that are connected to mute when the channell lever sivitch is
operated.
Channel 1 microphone connections are mdde to terminal block 1
as follol'JS·-
-
1
1
2
2
Left
Flight
Left
Right
Terminal
11'.
2A
31'.
4A
IB
2B
3B
4B
The microphone inputs are balanced 150 ohm and the external
circuit should not be grounded.
(See Instruction Book for the preamps for informa bion on chang·-
ing the impedance to 30/50 ohms.)
(See section on GHOUNDIIlG
CI.2CUIIJ.'S fo!'
in~:tallation
techniql}8S ,_)
It is important in stGreo broadcasting that the left and right
p:r'ogram sources b3 ir.:. th8 correct 'Dhase Vii tll each other to
maintain proper sound persp8ctivu.- This fact must be taken
into account when connecting in.Quts 'to the stereo console ..
Color codi.ng of I'licrojJhone cables or connector pin numb8ring
should be noted and the same lead connectecl fro];! each micro--
phone to the cor'I'c;sponding ter::ninal on TBI in each channel.
Microphone arrangements for channel 2 are the same as for
chann8l 1.
;3witching fUIlcti.ons of S10 and 813 are the same
as 89 and 812 r8sp8ctively, as 8xplained 8.bove.
Th8 fune·-
tional diagram drawing 8
L
+2 3492 001, shows these fUl1cti.ons.
Channel 2 microphones shoU:ld
be
in the same studio as the
speakers conn8cted to mute when the channel 2 lover key is
operat8d.
Microphone cor.nections to channel 2 are as f0110Vls-,
6/26/62
3
3
4
4
LGft
Right
Left
Right
Terlu
i
119.l Block 1
5A
61'.
7A
8.11.
5B
6B
7B
8B
The Executive
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