Transmitter Adiustments; Transmitting On Warc Bands - Kenwood TS-530S Instruction Manual

8
ADJUSTMENT OF ANT A N D M I X COILS
(RF UNIT)
The ANT and MIX coils are included in the coil pack unit.
Use the 25 kHz calibrator as a signal. Connect a 50R dummy
load to terminate the receiver input. Set the DRIVE control
to 12 o'clock. Adjust the ANT and MIX coils for maximum S
meter deflection. following the frequency table. Start with
the 1.8 MHz band and then proceed to other bands. To ad-
just the 10m band. use only 28.8 MHz in the 28.5 MHz
band.
8
ADJUSTMENT OF RECEIVE IF COILS
(RF AND I F UNITS)
Receive a marker signal using any frequency. Adjust the
DRIVE and the main tuning for maximum S meter deflec-
tion. Adjust T2 on the RF unit, L2, L5, L6, L7 and L10 on the
IF unit for maximum S meter indication. DO NOT adjust L8.
S METER ADJUSTMENT (IF UNIT)
Disconnect the antenna with the transceiver in receive
mode. Zero-point adjustment:
Adjust VR1 for meter pointer zero indication. If a standard
SIGNAL GENERATOR (SSG) is available, adjust VR2 so the S-
meter indicates "S-9". at 14.175 MHz for a 40 dB (50pV)
signal.
6.4 TRANSMITTER ADJUSTMENTS
TRANSMITTER NEUTRALIZATION
(See Internal View Bottom)
The TS-530s requires neutralization every time the final
tubes are changed.
Tune up the TS-530s into a 5 0 ohm dummy load at 28.5
MHz for CW operation as described in Section 4
.
Set the
SG switch to OFF and place a sensitive RF milli-voltmeter
across the dummy load. Flip the stand-by switch to SEND
and adjust TC1 (at the bottom of the final section) for a
minimum reading on the voltmeter. After the final section is
neutralized, flip the stand-by switch to REC and slide the SG
switch ON.
A receiver tuned to 28.5 MHz works very well for neutraliz-
ing if an RF voltmeter is not available. Instead of tuning for
a minimum voltage, tune for a minimum S-meter reading.
NOTE:
Since the drive tube operates into a fixed load (the finals) it
is not always necessary to replace this tube when replacing
the finals.
- - -
CAUTION:
Neutralization of the final section should be carried out with
the chassis shield in place. Dangerous high voltages are
present in the final section when the transceiver is turned
on. Use an insulated tool to make this adjustment.
8
TRANSMIT DRIVE COlL ADJUSTMENT
(RF UNIT)
The drive coils are part of the coil pack unit. Set the SG
switch on the rear panel to OFF and center the DRIVE con-
trol (12 o'clock). Set the METER switch to ALC and the
MODE switch to CW or TUNE.
With the standby switch in the SEND position. adjust the
drive coils for maximum ALC deflection for each band using
the same frequency and in the same order as for adjustment
of the ANT and MIX coils.
During adjustment, adjust the CAR control so there is just
enough injection to swing the ALC meter.
8
TRANSMIT I F COlL ADJUSTMENT (RF UNIT)
Using any frequency, place the transceiver in transmit mode
in the CW or TUNE position. Adjust T4 on the RF unit for
maximum ALC deflection.
8
CARRIER BALANCE ADJUSTMENT (IF UNIT)
With a 509 dummy load connected to the ANT terminal,
adjust for maximum output at 14.175 MHz. Reduce mic
gain to zero. Set the transceiver in LSB mode and adjust the
RF METER control on the rear panel for maximum
sensitivity. The RF meter will deflect if the carrier is unba-
lanced. To balance the carrier. alternately adjust trimmer
TC1 and trimpot VR4 until the meter indicates minimum.
Switch to USB mode and if the pointer deflects, readjust so
the pointer deflects equally for both LSB and USB.
8
ADJUSTMENT OF SIDE TONE LEVEL (AF UNIT)
Adjust VR 1 to your preference.
6.5 TRANSMITTING ON WARC BANDS
(Fig. 6-2)
As supplied, the TS-530s will receive but not transmit on
the 17, and
12
meter WARC bands. If transmit capability
is desired,
a
minor wiring change is required.
1. For
2
bands: Break the line between the RF unit
X44-1360-01, connector
#
6,
Pin
#
1 (TOF terminal)
and AF unit X49-1 150-00, connector #7, Pin # 4
(TOF terminal).
2. Or, for individual Bands: On the RF unit X44-1360-01:
Band Remove (or Cut) Part
1 8 MHz
24.5 M H z