Yaesu FT-101E User Manual

Adjust the DELAY control VR2 for suitable release
time.
4. CW SIDETONE LEVEL ADJUSTMENT
CW sidetone level may be adjusted by rotating TONE-
level potentiometer (VR4) located on PB-1315A.
5. CARRIER BALANCE
The transceiver should be allowed to reach operating
temperature before making the carrier balance adjust-
ment.
Tune-up the transceiver for SSB operation using an
antenna or dummy load. Turn the MIC GAIN control
fully counterclockwise to remove all audio from the
modulator stage.
With the MODE switch set to either the LSB/USB
positions, turn the “MOX-PTT-VOX” switch to the
MOX position and adjust the carrier balance controls
(VR1 and TCl) on Pp-1184A for minimum PO meter
reading.
A more exacting balance may be obtained by tuning
a receiver, having an S-meter, to the transmitted fre-
quency. Adjust the balance controls for minimum S-meter
reading while switching the MODE switch back and
forth between the two sideband positions to obtain
good carrier suppression for both sidebands.
6. ALC LEVEL ADJUSTMENT (EE/EX model)
The ALC meter will require adjustment if when. the
METER switch on the front panel is set to the ALC
position, the mode switch to USB, the “ MOX-PTT-VOX”
switch to MOX and the microphone gain to zero the
ALC meter does not read 5. To adjust the meter, set
the controls as follows:
MODE epectiiedeiientinien coaetee USB
MIC’ GAIN uectacaiceecsectanichatee Fully CCW
MOX-PTT-VOX ooo. eeeeeeeeeteees MOXx
If the meter reads other than .5 on the bottom scale,
adjust the ALC control VR2 on PB-1184A for a meter
indication of .5. Return the “MOX-PTT-VOX” switch
to the PTT position.
For
the
E
model,
please
refer
to
the
following
RF
processor
adjustment.
7. RF PROCESSOR
Set the controls and switches as follows:
MODE _ SSB (either LSB or USB)
HEATER OFF
METER ALC
PROCESS OFF
MIC GAIN Fully CCW position
BAND Any Band
Set the operation switch to MOX position and
adjust a potentiometer VR2 until the meter
indicates exactly full scale without any modula-
tion.
Connect the 1 kHz audio signal generator output
of 10 mV to the MIC input. Adjust the MIC GAIN
control until the audio input voltage becomes
30 mV at the gate of Q1, 2SK19GR. Peak T1 and
T3 for maximum audio output at the output coil
of T3. Set the VR1 for 30 mV output at T3.
Set the RF PROCESSOR switch to ON position
and peak T2 for a maximum output.
8. VOLTAGE REGULATOR ADJUSTMENT
Connect a VTVM DC probe between pin 13 of MJ6
(PB-1314A) and ground. Adjust VOLT potentiometer
VR3 for exactly 6 Volt reading on VTVM.
9. CLARIFIER ADJUSTMENT
The frequencies coincide at CLARIFIER contro! OFF and
0 position in the receive mode. If not, adjust potentio-
meter VR4 located near the clarifier control potentio-
meter under the main chassis.
Transmit and receiver frequencies coincide at CLARIFIER
control
OFF
position.
If
not,
adjust
ZERO
potentiometer
VR4 on PB-1314A
10. BIAS ADJUSTMENT
The final amplifier bias must be checked to insure
linearity and normal operating plate dissipation for the
final tubes. Adjust the BIAS control VR2 on PB-1314A
as follows; Set the transceiver to the receive mode
and allow the transceiver to reach operating tempera-
ture.
Set MODE switch to USB, METER switch to IC and
the “ MOX-PTT-VOX ” switch to MOX position for trans-
mit condition. The meter will indicate PA plate current.
Idle plate current is 60 mA if the bias is correct. If

Yaesu FT-101E Specifications

General

Brand	Yaesu
Model	FT-101E
Category	Transceiver
Language	English