Onkyo TX-7230 - Adjustment Procedures; FM Section Adjustments

ADJUSTMENT PROCEDURES
FM section
Connection
Stereo
modu-
Turning
dial
‘oer
:
.
fe
[|
—
|
—
FM
RF
2
107.9
MHz
1
kHz,
75
kHz
devi.
Fig. 2
Maxi
necessary
to
AC
voltmeter
RF
piers
adjust.
output
FM
IF
2
Fig.
2
P : mi :
vo
|
fe
Primary coil
R215 19 kHz + 10 Hz
PTE Ste
Distortion analyzer IF
2
107.9 MHz
99.0 MHz DC voltmeter Muting switch : off
Repeat the steps 1
and 2 until no
99.0 MHz
1
kHz,
75
kHz
devi.
65
dBf
(60
dB)
L102
.
99.0
MHz
Distortion
analyzer
|
Secondary
further
adjust-
coil
ment
is
necessary
99.0 MHz
1 kHz, 75 kHz devi.
65 dBf (60 dB)
Frequency counter Muting switch: no
99.0 MHz
65 dBf (60 dB)
Ext. modulation
Distortion
99.0
MHz
99.0 MHz
65 dBf (60 dB)
Ext. modulation
Lch.
1
kHz
R
ch.
AC
voltmeter
Signal output
Maximum and
same separation
Separation
R ch. 1 kHz L ch. AC voltmeter
99.0 MHz
17.2 dBf (12 dB)
1 kHz, 75 kHz devi.
99.0 MHz
Oscilloscope R120
Muting switch:
on
99.0 MHz
16.2 dBf (11 dB)
1 kHz, 75 kHz devi.
No output
OUTPUT
Terminal
terminal
OUTPUT
XT.
mode
antenna
OUTPUT
terminal
E
termina! terminal
FM
signal
AC
FM
signal
Distortion
Stereo
:
AC
generator
voltmeter
generator
analyzer
modulator
voltmeter
:
antenna
antenna
terminal
terminal
terminat
T
Terminal
erminals
a
vt
Ti
Tp2)
|
TR2
TP.4
Digital
OC
DC
Frequency
Distortion
voltmeter
Oscilloscope
counter
voltmeter
analyzer
(tig.
1)
(fig.
2)
(fig.
3)
AM section
eee : AM SG : | re Tuned | Output Adjustment +... for | Remarks |
—
*
N
No
.e)
oO