Pioneer SX-6 Service-Handbuch - Seite 20
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11. ADJUSTMENTS
FM Tuner
°
Connect the FM signal generator (FM SG) to the FM ANTENNA
3002 terminal through a 3000
dummy antenna.
e
Set the AUTO/MANUAL
switch to the MANUAL
position, the FM (FUNCTION) switch to the ON
position and the MODE MONO (MUTE OFF) switch to the MONO (MUTE OFF) position.
(#1)
(#2)
Tune the FM SG to the SX-6.
Connect the FM multiplex stereo signal generator to the FM SG external modulator terminal. Set
the modulation to Main 1kHz/L+R/+67.5kHz deviation, Pilot 19kHz/+7.5kHz deviation.
FM SG(400Hz,+75kHz deviation)
Frequency
Level
SX-6
Frequency
display
Adjustment
point
Adjustment procedure
No
signal
87.50MHz
L5
7.2V DC between terminal no.7 and ground.
No
signal
108.00MHz
TC4
24V DC between terminal no.7 and ground.
Repeat steps 1 and 2 until both specifications are correct.
90.0MHz (*1)
60dB
90.00MHz
L1,L2,L3
106.0MHz (*1)
98.0MHz (*1)
98.000MHz
98.000MHz
60dB
106.00MHz
Repeat steps 4 and 5 until maximum sensitivity: i
98.00MHz
98.00MHz
98.00MHz
TC1,TC2,TC3
s attained.
T2 (DIST)
Repeat steps 8 and 9 until both requirement are satisfied.
Adjust until DC voltage between terminal no.46
and ground is maximum.
Adjust until DC voltage between terminal no.46
and ground is maximum.
Adjust until distortion at TAPE 1 REC terminal is minimum.
Set the MODE MONO switch to the STEREO position.
98.0MHz (*1)
60dB (not
modulation)
98.00MHz
VR2
Adjust signal at terminal no.11 to 19kHz (£100Hz).
98.0MHz (*1)
60dB
|
.
Set to stereo modulation (*2)
98.00MHz
T1
(within +90°)
Adjust until distortion at TAPE
1 REC
LorR
terminal is minimum.
98.0MHz (*1)
30
31dB
Set to stereo modulation (*2)
98.00MHz
VR1
Obtain a position just prior to activation of the
muting circuit and light up the STEREO
indicator.