Tuner Section - Sony CFD-S35CP Service Manual

TUNER SECTION

[AM/MW]
Setting:
Function: RADIO
Band: AM or MW or LW
Put the loop
AM/MW RF signal
antenna close to
generator
the set.
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
[FM]
Setting:
Function: RADIO
BAND button: FM
TUNER board
FM RF signal
TP-ANT(JW2)
generator
0.01 µ F
75 kHz frequency
deviation by 1 kHz
TUNER board
signal
TP (GND)
Output level:
as low as possible
TUNER board
TP (CV)
TP (GND)
• Repeat the procedures in each adjustment several times, and
the tracking adjustments should be finally done by the trimmer
capacitors.
• Remove FM antenna in FM adjustment.
0 dB=1 µV
level meter
32 Ω
+
set
–
i jack (J321)
level meter
32 Ω
+
set
–
i jack (J321)
digital voltmeter
100 k Ω
AM/MW IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
AM FREQUENCY COVERAGE ADJUSTMENT
(EA, KR, MX, SP, TH model)
Adjustment Part Frequency Display
L4 531 kHz
Confirmation 1,611 kHz
AM TRACKING ADJUSTMENT (EA, KR, MX, SP, TH model)
Adjust for a maximum reading on level meter
L3
CT3
MW FREQUENCY COVERAGE CONFIRMATION
(CET, RU model)
Frequency Display
531 kHz
1,611 kHz
MW TRACKING ADJUSTMENT (CET, RU model)
Adjust for a maximum reading on level meter
L3-1
CT3
LW FREQUENCY COVERAGE ADJUSTMENT (CET, RU model)
Adjustment Part Frequency Display
Confirmation 153 kHz
L4 279 kHz
LW TRACKING ADJUSTMENT (CET, RU model)
Adjust for a maximum reading on level meter
L3-2
CT5
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
T2
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display
L2 108 MHz
Confirmation 87.5 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
CT1
Adjustment and Connecting Location:
TUNER board (See page 16)
• Abbreviation
CET : East European and CSI model.
EA : Saudi Arabia model.
KR : Korean model.
MX : Mexican model.
RU : Russian model.
SP : Singapore model.
TH : Thai model.
CFD-S35CP
450 kHz
Reading on Digital Voltmeter
1.0 ± 0.05 V
4.8 ± 0.7 V
621 kHz
1,404 kHz
Reading on Digital Voltmeter
0.9 ± 0.4 V
5.2 ± 0.5 V
621 kHz
1,404 kHz
Reading on Digital Voltmeter
0.6 ± 0.05 V
5.3 ± 0.5 V
162 kHz
261 kHz
10.7 MHz
Reading on Digital Voltmeter
3.0 ± 0.2 V
1.3 ± 0.3 V
87.5 MHz
108 MHz
15