10. Alignment Procedure; English - Pioneer SX-1010 Service Manual

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10. ALIGNMENT PROCEDURE

10.

ENGLISH

ALIGNING THE FM SECTION
1010 Control Settings
1. SX-
Set the controls (knob and switches) of the SX- 1010 as follows:
POWER:
FUNCTION: FM
FM MUTING:
OFF
2. Connections between Test Equipment and the SX-
from an FM signal generator should be connected to the 300Q antenna terminals
. The output
of the SX- 1010.
. A distortion meter should be connected to the TAPE REC terminal jacks on the SX-
millivolt meter should be connected to the TAPE REC terminal jacks on the SX-
. An AC
in parallel with the distortion meter.
kHz.
3. Set both the FM signal generator and the SX- 1010 to indicate 98MHz.
4. Turn the FM signal generator output level down to minimum.
5. Turn the lower core and adjust so that the TUNING meter needle is centered.---r
6. Increase the FM signal generator output to 60dB
7. Turn the upper core and adjust so that the distortion is at a
Steps 4 ~ 7 above should be repeated
ment is obtained.
:~ 8
(1)
8. Set the FM signal generator output level to 10dB , modulated at 400Hz
kHz.
tion of :1:75
9. Adjust for maximum output at 90MHz.
10. Adjust for maximum output at 106MHz.
11. Adjust for maximum output at 90MHz.
12. Adjust for maximum output at
Steps 11 ~ 12 above should be repeated several times in succession
impmvomenti, ob',;ned.
several times in succession , until no significant improve-
" 0"
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c "
" 0)" "
106MHz.
0 &
e,f
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0 0
" "
1010
, modulated at 400Hz , with a deviation of
minimum.
aa""a
c Ie
0 "
c c
, with a frequency devia-
, until no further significant
i 0 0
r $
1 (
= 0
I010.
1010
:1:75
(Z)