Fm S-Meter S-1 Adjustment (S1 Level); Fm S-Meter Full-Scale Adjustment (S9 Level); Wide Fm S-Meter S-1 Adjustment (S1 Level) - Yaesu VX-8R/E Service Manual

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).
12

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).
VX-8R/E and VX-8DR/E Technical Supplement