Realistic PRO-2004 - Zeromatic Function Test Procedure

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ZEROMATIC FUN-CTION TEST PROCEDURE
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Ica
~1--...J...=.6 5 _
6
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ICS
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IC6
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Discriminator Curve
(NFM)
(WFM)
(Zeromatic functions when OUTPUT is in "H" leveL)
O<e1<e3 e3<e1<e2
e2<e1 <VCC
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.OUTPUT lIC3 Pin No.4)
L
H
L
(NFM MOD.)
To adjust el voltage, receive signal in Manual mode, and set T13 to obtain 3.8 V (±O.l V) at TP4.
. It
is convenient to use the National Weather Service signal for the adjustment.
(WFM MOD.)
To adjust e1 voltage, receive signal in Manual mode and set T6 to obtain 3.8 V (±O.l V) at TP3.
It
is convenient to use the FM. TV. sound signal for the adjustment.
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