Yaesu VX-8DR/E, Service Manual

Page: 19 / 118

19 VX-8R/E and VX-8DR/E Technical Supplement
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 435.100 MHz, at
a level of +3 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 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 435.100 MHz, at
a level of -7 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
S-1 level.
Ì
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 435.100 MHz, at
a level of +20 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
Full Scale level.
Ì
Press the [
V/M
] button (the " " icon will disappear on
the display).
NOTICE
: Do not touch the following Alignment Menus:
"PLL REF"
" S1 LEVEL " with " WFM " icon
" S9 LEVEL " with " WFM " icon.
" HI POWER "
" L3 POWER "
" L2 POWER "
" L1 POWER "
" MAX DEV "
" HI POWER "
" 100.0Hz "
" DCS 023 "
Alignment