Yaesu FT-757GX II, Техническое дополнение

Страница: 24 / 70

LPF Unit: Directional CM Coupler Balance
Set the METER switch to PO and the rear panel
FWD-REV switch to REV. Set the transceiver to
the CW mode, and transmit a 14 MHz carrier into
the dummy load. Adjust TC3001 for minimum
deflection on the meter.
I'-
N
N
...,
0
...
0
...
0
0
0
0
PA
Unit: Idling Current
Remove the jumper shown in the following figure,
and connect the DC milliammeter (500 mA range)
in place of the jumper. With the transceiver set to
an SSB mode and with no audio applied to the
transmitter, close the PTT line and adjust VR6001
for 250 mA (± 100 mA) on the ammeter. Replace
the jumper after the adjustment. For the
FT-757SX, adjust VR7001 for 150 mA (±50 mA).
'<:I'
N � N
0 0 0
0
0
0 0 0
,.,
tCl tel tCl
cr f- cr
cr
PA Unit
'
�
�
0
0
0
0
0
0
�
�
�
cr ..., cr
0
0
�
f-
0
0
�
cr
0
0
�
...,
- 2 1 -