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ZEROMATIC
FUN-CTION
TEST PROCEDURE
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-I~.,.J-:::.6
5 _
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6
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Discriminator Curve
(NFM)
(WFM)
(Zeromatic functions when OUTPUT is in "H" leveL)
0<e1<e3
e3<e1 <e2
e2<e1 <VCC
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OUTPUT (JC3 Pin No. 4)
L
H
L
(NFM
MOD.)
To adjust e1 voltage, receive signal in Manual mode, and set T13 to obtain 3.8 V (±O.1 V) at TP4.
It is convenient to use the National Weather Service signal for the adjustment.
(WFM MOD.)
To adjust e1 voltage, receive signa
I
in Manual mode and set T6 to obtain 3.8 V (±O.1 V) at TP3.
It is convenient to use the FM. TV. sound signal for the adjustment.
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