Preparation; Adjustments - Kenwood TS-930S Instruction Manual

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GENERAL
When operated properly, the transceiver can give years of
service without requiring realignment. The information in
this section gives some general service procedures which
can
be accomplished
without sophisticated
test equip-
ment.
CLEANING
The knobs, front panel and cabinet of the TS-930S are like-
ly to become soiled after extended use. The knobs should
be removed from the transceiver and cleaned with a neutral
soap and warm
water. Use
a neutral soap
(not harsh
' chemicals) and damp cloth to clean the cabinet and front
panel.
8.1 PREPARATION
1. Removing the covers
Remove the eight screws which fasten the top and eight
screws from the bottom
case panel. The covers may be
lifted away.
Fig. 8-1 Removing cases
36
EL
2. Service position
Place the transceiver on its left side, with the final stage
up, for proper ventilation. :
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Fig. 8-2 Service position
8.2 ADJUSTMENTS
1. RV voltage adjustment (Signal unit)
Adjust the voltage to 16 V with VR-24.
2. RB voltage adjustment (Signal unit)
Adjust the voltage to 2.15 V with VR-25.
3. Supply voltage adjustment (Power Supply unit}
Adjust the voltage to 28.5 V with VR-1.
4. Digital display calibration
Connect the antenna, place the MODE switch to TUNE,
and Zero-Beat to WWYV at either 5, 10 or 15 MHz. Next,
turn the 100 kHz calibrator ON and the marker signal will
be superimposed
on the WWYV signal. If the calibrator is
also at Zero-Beat, adjustment is not necessary.
If the calibrator is not Zero-Beat with WWV, adjust the
Standard oscillator trimmer through the reference frequen-
cy adjustment access opening (on the side of the TS-930S)
so the two signals are again Zero-Beat. Repeat this pro-
cedure 2 or 3 times. This completes calibration of the
Digital Display. After calibration turn off the CAL switch.