Yaesu FT-857 series, Техническое дополнение

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Alignment
LCD Contrast Alignment
1. Connect a DC voltmeter (High Impedance) to TP4027
on the PANEL Unit.
2. Adjust VR4001 for an indication of –2.54 V (±0.02
V) on the voltmeter.
Software Menu Alignment
The antenna jacks should be connected to a dummy load
(in cases where transmission is involved) or the signal
generator (in the case of reception). General alignment
conditions are as follows unless otherwise noted.
AF
-gain knob: Center
RF -gain knob: Fully clockwise
SQL
: Fully counterclockwise
ATT / IPO / CTCSS / DCS : Off
AGC
: Auto
Output power : Max
Break-in
: On,
CW Keyer : Off
VOX
: Off
Press and hold in three Multi Function Keys ([
A
], [
B
],
[
C
]) simultaneously and turn on the transceiver while hold-
ing them in; the alignment menu will then be activated
(you will hear a “diddle-diddle-diddle” opening tone se-
quence to confirm that the alignment menu has been acti-
vated).
In the alignment procedures, each alignment parameter is
selected by rotating the main
DIAL
knob. Each Align-
ment item is then selected by rotating the SELECT knob.
To store the alignment parameters when you are satisfied
with the adjustment, press the [
FUNC
] key for longer than
a one second.
VR4001 TP4027
PANEL Unit Alignment Points