Yaesu VX-7R, Service Manual

14

Squelch Preset Threshold

 (

THLD SQL

)

H

 Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the 

V/M

 button, then press the

MON/F

 button twice. Press the 

V/M

 button, then rotate

the 

DIAL

 to select the next setting.

Squelch Preset Tight

 (

TIGH SQL

)

H

 Adjust the generator level to –4.0 dBµ, then press the 

V/M

button, then press the 

MON/F

 button twice. Press the 

V/M

button, then rotate the 

DIAL

 to select the next setting.

S-Meter S-1 Adjustment

 (

S1 LEVEL

)

H

 Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the 

V/M

 button, then

press the 

MON/F

 button twice. Press the 

V/M

 button, then

rotate the 

DIAL

 to select the next setting.

S-Meter Full-Scale Adjustment

 (

S9 LEVEL

)

H

 Adjust the generator level to +19 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the 

V/M

 button, then

press the 

MON/F

 button twice. Press the 

V/M

 button, then

rotate the 

DIAL

 to select the next setting.

Wide-FM S-Meter S-1 Adjustment

 (

S1 LEVEL

)

H

 Adjust the generator level to 0 dBµ (1 kHz tone @ ±20

kHz deviation), then press the 

V/M

 button, then press

the 

MON/F

 button twice. Press the 

V/M

 button, then ro-

tate the 

DIAL

 to select the next setting.

Wide-FM S-Meter Full-Scale Adjustment

 (

S9 LEVEL

)

H

 Adjust the generator level to +20 dBµ (1 kHz tone @ ±20

kHz deviation), then press the 

V/M

 button, then press

the 

MON/F

 button twice. Press the 

V/M

 button, then ro-

tate the 

DIAL

 to select the next setting.

The alignment frequency will now be automatically set

to 50.000 MHz.

High TX Power Adjustment

 (

HI POWER

)

H

 Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the 

DIAL

, then press the 

V/M

 but-

ton. Rotate the 

DIAL

 to select the next setting.

L3 Tx Power Adjustment

 (

L3 POWER

)

H

 Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the 

DIAL

, then press the 

V/M

 but-

ton. Rotate the 

DIAL

 to select the next setting.

L2 Tx Power Adjustment

 (

L2 POWER

)

H

 Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the 

DIAL

, then press the 

V/M

 but-

ton. Rotate the 

DIAL

 to select the next setting.

L1 Tx Power Adjustment

 (

L1 POWER

)

H

 Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the 

DIAL

, then press the 

V/M

button. Rotate the 

DIAL

 to select the next setting.

TX Deviation Adjustment 

(

MAX DEV

)

H

 Inject a 1 kHz audio tone at a level of 50mV (rms) to the

MIC jack. Press the 

V/M

 button, then transmit and adjust

the deviation for4.5 kHz (±0.2 kHz) (USA Version: (4.2
±0.2 kHz)) by rotating the 

DIAL

, then press the 

V/M

 but-

ton. Rotate the 

DIAL

 to select the next setting.

AM Modulation 

(

AM MOD

)

H

 Inject a 1 kHz audio tone at a level of 100 mV (rms) to

the MIC jack. Press the 

V/M

 button, then transmit and

adjust the modulation for 60% (±10%) by rotating the

DIAL

, then press and hold in the 

MON/F

 button for one

second.

CTCSS Tx Deviation Adjustment 

(

TN 67.0

)

H

 Press the 

V/M

 button, then transmit and adjust the de-

viation for 0.6 kHz (+0.05/-0.1 kHz) by rotating the 

DIAL

,

then press the 

V/M

 button. Rotate the 

DIAL

 to select the

next setting.

CTCSS Tx Deviation Adjustment 

(

TN 167.9

)

H

 Press the 

V/M

 button, then transmit and adjust the de-

viation for 0.6 kHz (+0.05/-0.1 kHz) by rotating the 

DIAL

,

then press the 

V/M

 button. Rotate the 

DIAL

 to select the

next setting.

CTCSS Tx Deviation Adjustment 

(

TN 254.1

)

H

 Press the 

V/M

 button, then transmit and adjust the de-

viation for 0.6 kHz (+0.05/-0.1 kHz) by rotating the 

DIAL

,

then press the 

V/M

 button. Rotate the 

DIAL

 to select the

next setting.

DCS Tx Deviation Adjustment 

(

DCS DEV

)

H

 Press the 

V/M

 button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the 

DIAL

, then

press the 

V/M

 button. Rotate the 

DIAL

 to select the next

setting.

Press the 

MON/F

button to activate the TX Power and

Deviation alignment routine.

The alignment frequency will automatically be set to

54.000 MHz.

High TX Power Adjustment

 (

HI POWER

)

H

 Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the 

DIAL

, then press the 

V/M

 but-

ton. Rotate the 

DIAL

 to select the next setting.

Alignment