Pioneer SX-303/KC Service-Handbuch - Seite 16

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12. ADJUSTMENTS
FM Tuner Section
Check that the dial pointer indicates a starting point.
Connect the SIGNAL meter between terminal no. 1 of complex assembly and the ground.
In principle, no adjustment should be made on FM tracking. (See page 21, if necessary.)
Set the FM switch to ON and connect terminal no. 6 to the ground.
om 3G
Positi
f
Adjustment
Step
(400Hz, +75kHz deviation)
leila
ctiae
eee
Adjustment procedure
-
dial pointer
point
Frequency
Level
a:
98MHz
66dB
98MHz
T1
Set the output
of the REC
OUT
terminal to the maximum
value.
rl
I
AU
t t
3.
98MHz2
66dB
98MHz
TM
Adjust the output of the REC
OUT
terminal
distortion
to
the minimum
tevel.
Disconnect terminal no. 6 from the ground.
98MHz
|
66dB
Not modulated
VR3
T6
98MHz
66dB
(within
Minimize
the distortion
of the REC
OUT
terminal
signal.
* Stereo modulation
+90° )
NOTE:
Connect the MPX SG to the FM SG external modulator terminal and set the modulation of Main (1kHz, L+R) +67.5kHz
deviation, Pilot
(19kHz) £7.5kHz deviation.
Adjustment points in brackets are
for SX-303L (Low Wave) only.
Fig. 11-1
Adjustment points
2O