Rear Panel Controls - Kenwood TS-820S Instruction Manual

3.2 REAR PAN EL CONTROLS
When the position of the AC Voltage Selector Switch is
changed. it is also necessary to change the power fuse for
120 volt operation a 6 ampere fuse, for 220 volt operation a
4 ampere fuse provided with the TS-820S should be used.
CD RFVOLT
Use the RF VOLT control to adjust the sensitivity of the RF
output function of the meter. Adjust it for a 2/3 scale rea-
ding during CW transmission.
@ AC VOLTAGE SELECT SWITCH
This slide switch switches the primary of the power transfor
mer to select 120 or 220 VAC operation.
@ COOLING FAN
This fan cools the RF amplifier section of the TS-820S to in-
sure reliable and efficient opera'tion.
C!~
POWER SUPPLY CONNECTOR
This 12-pin connector is used to connect an AC or DC power
source to the transceiver.
@ ANTENNA CONNECTOR
This SO-239 coax connector should be attached to a suita-
ble antenna for transmitting and receiving See Section 2.4
for a discussion of an appropriate antenna.
~2)
TRANSVERTER CONNECTOR
This 12 -pin connector is used to control an accessory VH F
transverter.
@ BIAS CONTROL
The BIAS control adjusts the bias voltage of the two
S2001A (6146B) amplifier tubes. Tuning the control clock-
wise increases the idling plate current of the tubes. Section
4 describes adjustment of ~he bias current.
@ SG SWITCH
The 5G slide switch controls the screen grid voltage o.n the
final tubes. For tuning or neutralizing the TS-8205 you can
set the switch to the OFF position Turn the switch back to
the ON position for normal operation The 5G voltage is on
when the switch is up and off when the switch is down.
@ X VERTER SWITCH
When VHF Transverter (TV-502S) is connected to the trans
ceiver, the selection of H F or VH F IS automatically accom
plished by setting the transverter switch to ON or OFF.
@ TRANSVERTER IN JACK
This is the RF input jack for input from a VHF transverter.
(j) TRANSVERTER OUT JACK
This is the low level RF output jack for use with a VHF trans.
verter
@ PHONE PATCH IN JACK
This is a phone patch input terminal for transmission of
SSTV or other line inputs.
\1~ PHONE PATCH OUT JACK
This is a line output terminal for phone patch or recording. It
is also used for connection to the input of FSK demodulator
SSTV.
@ GND (GROUND) LUG
To prevent accidental shocks from the chassis. as well as in-
terference. connect a good earth ground to this lug.
SPEAKER JACK
(~
@ FUSE
This fuse is a JAG. 4 amp fuse which protects the power
supply of the transmitter against short circuits. Never use a
higher amperage fuse than the one specified. An improper
one can cause extensive damage to the transmitter. When
the fuse blows out. try to determine the cause before repla-
cing it.
The receiver audio output can be connected through this
jack to the external 4 to 16 ohm speaker. The internal
speaker is disconnected when an external speaker is con-
nected
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