Wesmar SS590 SERIES, Руководство по установке и эксплуатации

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SS590
Page IV-3
WESMAR
2.0 PREAMP ADJUSTMENT
The following adjustments can be accomplished
by using the tune LED light located between the
two terminal strips on the Hoist/Preamp board
or by using a volt meter. VOM or DVM.
2.1 Tune Light Method
Adjust the NEAR and FAR gain controls on the
front panel until the tune light glows on the
Hoist/Preamp board,
Adjust L1, L2, L8 for maximum
brightness. Repeat this adjustment. NEAR
and FAR gain controls may need
to
be
reduced
to
keep the light circuit from
saturating.
2.2 Volt Meter Method
Connect the positive lead of a VOM to TP1
or DVM
to
TP2. Use terminal 14 as ground.
Adjust L1, L2, L3 for maximum deflection
or
voltage reading. Repeat this
adjustment. NEAR and FAR gain controls
may need to be reduced to keep the
monitoring circuit from saturating.
3.0 RECEIVER ADJUSTMENT
Follow the same procedure used for the
transmitter, above, to adjust the receiver.
Proceed by adjusting first T5, L6, and then L7.
Remember to lower Near and Far Gain on
the front panel when the target becomes
red.
Since steps 2 and 3 will affect the trans-
mitter adjustment, Steps 1 through 3
should be repeated again at least once for
best performance.
4.0
TVG OFFSET
4.1 Set both NEAR and FAR gain
to
minimum
NG 0 and FG 0.