Yaesu VX-8DR/E, Service Manual

Page: 15 / 118

15 VX-8R/E and VX-8DR/E Technical Supplement
Alignment
Wide FM S-Meter S-1 Adjustment (S1 LEVEL)
Ì
Connect the test equipment as shown in Figure 2: RX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" S1 LEVEL " with " WFM " icon.
Ì
Set the RF Signal Generator output to 145.100 MHz, at
a level of 0 dBµ, ±20 kHz deviation with a 1 kHz audio
tone.
Ì
Press the [
V/M
] button (the " " icon will appear on the
display).
Ì
Press the [
F/W
] key two times to store the Wide FM S-
Meter S-1 level.
Ì
Press the [
V/M
] button (the " " icon will disappear on
the display).
Wide FM S-Meter Full-Scale Adjustment (S9 LEVEL)
Ì
Connect the test equipment as shown in Figure 2: RX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" S9 LEVEL " with " WFM " icon.
Ì
Set the RF Signal Generator output to 145.100 MHz, at
a level of +20 dBµ, ±20 kHz deviation with a 1 kHz
audio tone.
Ì
Press the [
V/M
] button (the " " icon will appear on the
display).
Ì
Press the [
F/W
] key two times to store the Wide FM S-
Meter Full Scale level.
Ì
Press the [
V/M
] button (the " " icon will disappear on
the display).
TX Power (HI) Adjustment (HI POWER)
Ì
Connect the test equipment as shown in Figure 1: TX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" HI POWER ".
Ì
Press the [
V/M
] button (the " " icon will appear on the
display).
Ì
Press the PTT switch to transmit and rotate the DIAL
knob so that the Power Meter setting is 5.0 W (±0.1
W).
Ì
Release the PTT switch, then press the [
V/M
] button
(the " " icon will disappear on the display).
TX Power (L3) Adjustment (L3 POWER)
Ì
Connect the test equipment as shown in Figure 1: TX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
"L3 POWER".
Ì
Press the [
V/M
] button (the " " icon will appear on the
display).
Ì
Press the PTT switch to transmit and rotate the DIAL
knob so that the Power Meter setting is 2.5 W (±0.1
W).
Ì
Release the PTT switch, then press the [
V/M
] button
(the " " icon will disappear on the display).
TX Power (L2) Adjustment (L2 POWER)
Ì
Connect the test equipment as shown in Figure 1: TX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" L2 POWER ".
Ì
Press the [
V/M
] button (the " " icon will appear on the
display).
Ì
Press the PTT switch to transmit and rotate the DIAL
knob so that the Power Meter setting is 1.0 W (±0.1
W).
Ì
Release the PTT switch, then press the [
V/M
] button
(the " " icon will disappear on the display).
TX Power (L1) Adjustment (L1 POWER)
Ì
Connect the test equipment as shown in Figure 1: TX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" L1 POWER ".
Press the [
V/M
] button (the " " icon will appear on
the display).
Ì
Press the PTT switch to transmit and rotate the DIAL
knob so that the Power Meter setting is 50 mW (+30
mW/ -20 mW) (VX-8E Type: 0.2W±0.05W).
Ì
Release the PTT switch, then press the [
V/M
] button
(the " " icon will disappear on the display).