Item
FM
IF/RF
Stereo
Distortion
Muting
Level
Step
1
2
3
Connection
of instrument
Fig.1
Fig.2
FM SG
output
98.1MHz
1kHz 75kHz devi.
65dBf ( 60dB)
98.1MHz
Ext. mod.
98.1MHz
19.2dBf
( 14dB )
Stereo modu-
lator output
Channel L
or R 1kHz
Fig.1
Tuning
frequency
98.1MHz
Output
indicator
DC voltmeter
AC voltmeter
Distortion
analyzer
Oscilloscope
or
TUNING
indicator
Adjustment
point
L101
IFT on the
front end
L102
IFT on the
front end
R111
Adjust
for
Maximum
Minimum
Minimum
Signal output
or
light on
Remarks
FM MUTE/MODE
switch:ON/STEREO
Repeat the steps 1
and 3 until no
further adjustment
is necessary.
Distortion
analyzer
98.1MHz
98.1MHz
2. FM Adjustment
Preparation
Input
FM mono: 1kHz,75kHz
FM stereo: 1kHz,67.5kHz
Pilot signal: 19kHz,7.5kHz devi.
ADJUSTMENT PROCEDURES
T-405TX
75
ANT.
TERMINAL
OUTPUT
TERMINAL
UNIT
DISTORTION
METER
OSCILLOSCOPE
or
AC VOLTMETER
TP101
DC
VOLTMETER
<Fig.1>
<Fig.2>
STEREO
SIGNAL
MODULATOR
FM SIGNAL
GENERATOR
75
ANT.
TERMINAL
UNIT
DISTORTION
METER
OSCILLOSCOPE
or
AC VOLTMETER
OUTPUT
TERMINAL
FM SIGNAL
GENERATOR
ADJUSTMENT POINT
