– 19 –
FM Stereo Separation Adjustment (Wide)
Setting:
[SOURCE] button : FM
[SHIFT] button : ON (light up SET UP and
PLAY MODE)
Preset [4] (PLAY MODE)
n [5] (n) buttons : WIDE mode
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 24 dB
Adjustment Location: See page 22.
FM Stereo
Level meter Level meter
signal generator
connection reading (dB)
output channel
L-CH L-CH A
B
R-CH L-CH Adjust RV3 on TUX10
for minimum reading.
R-CH R-CH C
D
L-CH R-CH Adjust RV3 on TUX10
for minimum reading.
TUNER SECTION
0 dB=1 µV
Cautions during repair
When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.
Note: Adjust the tuner section in the sequence shown below.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment (Wide)
3. FM Stereo Separation Adjustment (Narrow)
4. FM RDS S-Meter Adjustment
5. MW Auto Scan/Stop Level Adjustment
FM Auto Scan/Stop Level Adjustment
Setting:
[SOURCE] button : FM
Procedure:
1. Set to the test mode. (See page 18)
2. Push the [SOURCE] button and set to FM.
Display
3. Push the preset [3] button.
Display
4. Adjust with the volume RV2 on TUX10 so that the “FM” indi-
cation turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that
put out light “0” indication and adjustment.
Display
Adjustment Location: See page 22.
set
antenna jack
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level : 22 dB (12.6
µ
V)
Mode : mono
Modulation : 1 kHz, 22.5 kHz deviation (30%
FM RF signal
generator
Carrier frequency : 98.00 MHz
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main: 1 kHz, 33.75 kHz deviation (45%)
sub : 1 kHz, 33.75 kHz deviation (45%)
: 19 kHz pilot: 7.5 kHz deviation (10%)
0.01
µ
F
set
antenna jack
+
–
LINE OUT REAR jack
(CN780)
level meter
10 k
Ω
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