Read Sony CDX-4170R Service Manual online
– 21 –
FM Noise Focus Adjustment
Setting :
D-BASS switch : OFF
SOURCE button : FM
SOURCE button : FM
Carrier frequency : 98.00 MHz
Output level
Output level
: 60 dB (1 mV)
Mode
: stereo
Modulation
: 1 kHz, 75 kHz deviation (100%)
Procedure :
1. Tune the 98.00 MHz.
2. The then output level is supposing that (A) dB.
3. Adjust with the volume RV3 on TU101 so that the output level is
1. Tune the 98.00 MHz.
2. The then output level is supposing that (A) dB.
3. Adjust with the volume RV3 on TU101 so that the output level is
(A) – 30
±
1 dB then signal generator input set to – 20 dB.
Adjustment Location : See page 22.
Carrier frequency : 98.00 MHz
Output level
Output level
: 35 dB (56.2
µ
V)
Mode
: mono
Modulation
: no modulation
Procedure :
1. Set to the test mode. (See page 20.)
2. Push the SOURCE button and set to FM.
1. Set to the test mode. (See page 20.)
2. Push the SOURCE button and set to FM.
Display
FM RDS S-Meter Adjustment
Setting :
D-BASS switch : OFF
SOURCE button : FM
SOURCE button : FM
3. Push the preset 6 button.
4. Adjust RV101 so that the display indication is “160”.
4. Adjust RV101 so that the display indication is “160”.
Display
Specification : Display indication : 158 to 162.
Adjustment Location : See page 22.
FM Stereo Separation Adjustment
Setting :
D-BASS switch : OFF
SOURCE button : FM
SOURCE button : FM
FM stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
R-CH
L-CH
Adjust RV4 on TU101 for
minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV4 on TU101 for
minimum reading.
L-CH stereo separation : A – B
R-CH stereo separation : C – D
The separations of both channels should be equal.
R-CH stereo separation : C – D
The separations of both channels should be equal.
Specification : Separation more than 28 dB
Adjustment Location : See page 22.
Carrier frequency : 98.00 MHz
Output level
Output level
: 70 dB (3.2 mV)
Mode
: stereo
Modulation
: main : 1 kHz, 20 kHz deviation (26.5%)
sub : 1 kHz, 20 kHz deviation (26.5%)
19 kHz pilot : 7.5 kHz deviation (10%)
19 kHz pilot : 7.5 kHz deviation (10%)
Procedure :
FM RF signal
generator
0.01
µ
F
antenna
terminal
terminal
set
LINE OUT REAR
10 k
Ω
level meter
FM RF signal
generator
0.01
µ
F
antenna
terminal
terminal
set
LINE OUT REAR
10 k
Ω
level meter
FM RF signal
generator
0.01
µ
F
antenna
terminal
terminal
set
INTRO
REG
INTRO
REG
Click on the first or last page to see other CDX-4170R service manuals if exist.