Pioneer SX-205 Service Manual - Page 18

Adjustments

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SX-305RDS, SX-205RDS 4. ADJUSTMENTS ADJUSTMENT OF MW TUNER SECTION • Set the FM/AM selector to AM (MW) BAND. • Connect the wiring as shown in Fig. 1-1. Step No. Adjustment Title TUNED IND. 1 Lighting Level Check AM SG (400Hz, 30% Mod.) Frequency Level (kHz) (dBµV/m) Reception Frequency ALdojucsattmioennt Display Specifications 999 Less than 65 999 kHz Less than 65 dBµV/m. In case out of standard, cut the R164. ADJUSTMENT OF FM TUNER SECTION • Set the FM/AM selector to FM BAND. • Connect the wiring as shown in Fig. 1-1. Step No. Adjustment Title FM SG (1kHz, ±75kHz dev.) Frequency (MHz) Level (dBµV) Reception Frequency Display Adjustment Location Specifications 1 Center Adjustment 98 Adjust so that the DC voltage of R151's both ends becomes 0V±50mV. 60 98.0 MHz L151 R151 VI V = 0±50mV DC VOLTMETER Front-end 2 Sensitivity Check 98 Less than 14 98.0 MHz Less than 14 dBµV. Stereo 3 Separation 89 Check 60 89.0 MHz Less than 23 dB. In case out of standard, cut the 8157. 4 TUNED IND. Lighting Level 98 18 (±3 dB) 98.0 MHz VR151 18 dBµV±3 dB. Adjust so that the indicator of TUNED IND. starts to light up. Note: • Make indicator adjustments in order of AM -• FM. 60cm Loop antenna AM SG MPX SG Center Center AM antenna terminal FM SG PRODUCT .41 FM 750 antenna terminal / DC voltmeter Fig. 1-1. AM and FM Adjustment Wiring Diagram 30

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SX-305R
DS,
SX-205RDS
4.
ADJUSTMENTS
ADJUSTMENT
OF
MW
TUNER
SECTION
•
Set
the
FM/AM
selector
to
AM
(MW)
BAND.
•
Connect
the
wiring
as
shown
in
Fig.
1-1.
Step
No.
Adjustment
Title
AM
SG
(400Hz,
30%
Mod.)
Reception
Frequency
Display
Adjustment
Location
Specifications
Frequency
(kHz)
Level
(dBμV/m)
1
TUNED
IND.
Lighting
Level
Check
999
Less
than
65
999
kHz
Less
than
65
dBμV/m.
In
case
out
of
standard,
cut
the
R164.
ADJUSTMENT
OF
FM
TUNER
SECTION
•
Set
the
FM/AM
selector
to
FM
BAND.
•
Connect
the
wiring
as
shown
in
Fig.
1-1.
Step
No.
Adjustment
Title
FM
SG
(1
kHz,
±75kHz
dev.)
Reception
Frequency
Display
Adjustment
Location
Specifications
Frequency
(MHz)
Level
(dBμV)
1
Center
Adjustment
98
60
98.0
MHz
L151
Adjust
so
that
the
DC
voltage
of
R151's
both
ends
becomes
0V±50mV.
R151
VI
V
=
0±50mV
DC
VOLTMETER
2
Front-end
Sensitivity
Check
98
Less
than
14
98.0
MHz
Less
than
14
dBμV.
3
Stereo
Separation
Check
89
60
89.0
MHz
Less
than
23
dB.
In
case
out
of
standard,
cut
the
8157.
4
TUNED
IND.
Lighting
Level
98
18
(±3
dB)
98.0
MHz
VR151
18
dBμV±3
dB.
Adjust
so
that
the
indicator
of
TUNED
IND.
starts
to
light
up.
Note:
•
Make
indicator
adjustments
in
order
of
AM
-•
FM.
60cm
Loop
antenna
AM
antenna
terminal
.41
AM
SG
Center
Center
MPX
SG
FM
SG
PRODUCT
DC
voltmeter
FM
750
/
antenna
terminal
Fig.
1-1.
AM
and
FM
Adjustment
Wiring
Diagram
30