Yaesu VX-8DR/E, Service Manual

Page: 12 / 118

12 VX-8R/E and VX-8DR/E Technical Supplement
Alignment
Tight Squelch Adjustment (TIGH SQL)
Ì
Connect the test equipment as shown in Figure 2: RX
Alignment Setup.
Ì
Rotate the DIAL knob to select the Alignment Menu
" TIGH SQL ".
Ì
Set the RF Signal Generator output to 52.100 MHz, at a
level of +4 dBµ, ±3.5 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 read the Squelch Tight
level.
Ì
Press the [
V/M
] button (the " " icon will disappear on
the display).
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 " NFM " icon.
Ì
Set the RF Signal Generator output to 52.100 MHz, at a
level of -7 dBµ, ±3.5 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 FM S-Meter
S-1 level.
Press the [
V/M
] button (the " " icon will disappear on
the display).
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 " NFM " icon.
Ì
Set the RF Signal Generator output to 52.100 MHz, at a
level of +20 dBµ, ±3.5 kHz deviation with a 1 kHz au-
dio 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 FM S-Meter
Full Scale level.
Ì
Press the [
V/M
] button (the " " icon will disappear on
the display).
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 52.100 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 read 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 52.100 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 read 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 appear on the display).