Tuner Section - Sony CFD-S03CP Service Manual

CFD-S03CP/S03CPL
Ver. 1.2

TUNER SECTION

0 dB = 1 µV
[AM (MW/LW)]
Setting:
Function: RADIO/BAND/AUTO PRESET
Band: MW or LW
Put the loop
AM 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/AUTO PRESET
BAND button: FM
MAIN board
FM RF signal
TP ANT2 (JW231, 232)
generator
0.01 µ F
75 kHz frequency
deviation by 1 kHz
signal
Output level:
as low as possible
• Connecting Digital Voltmeter (FM, MW and LW)
MAIN board
100 k Ω
TP (VT)
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.
14
level meter
32 Ω
+
set
–
i jack (J321)
level meter
32 Ω
+
set
–
i jack (J321)
digital voltmeter
AM (MW/LW) IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
LW FREQUENCY COVERAGE ADJUSTMENT (AEP)
Adjustment Part Frequency Display
L3 279 kHz
Confirmation 153 kHz
LW TRACKING ADJUSTMENT (AEP)
Adjust for a maximum reading on level meter
ANT1-2
CT5
MW FREQUENCY COVERAGE ADJUSTMENT (AEP)
Adjustment Part Frequency Display
Confirmation 531 kHz
Confirmation 1,611 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
(EXCEPT CND, AEP, E92, MX)
Adjustment Part Frequency Display
L3 531 kHz
Confirmation 1,611 kHz
MW FREQUENCY COVERAGE ADJUSTMENT (CND, E92, MX)
Adjustment Part Frequency Display
L3 530 kHz
Confirmation 1,710 kHz
MW TRACKING ADJUSTMENT (EXCEPT CND, E92, MX)
Adjust for a maximum reading on level meter
ANT1-1
CT3
MW TRACKING ADJUSTMENT (CND, E92, MX)
Adjust for a maximum reading on level meter
ANT1-1
CT3
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
L6
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:
MAIN board (See page 15)
• Abbreviation
CND : Canadian model
E92 : AC 120V area in E model
MX : Mexican model
450 kHz
Reading on Digital Voltmeter
5.3 ± 0.5 V
0.6 ± 0.05 V
162 kHz
261 kHz
Reading on Digital Voltmeter
0.9 ± 0.2 V
5.5 ± 0.5 V
Reading on Digital Voltmeter
0.8 ± 0.05 V
5.0 ± 0.5 V
Reading on Digital Voltmeter
0.8 ± 0.5 V
5.8 ± 0.05 V
621 kHz
1,404 kHz
620 kHz
1,400 kHz
10.7 MHz
Reading on Digital Voltmeter
3.0 ± 0.2 V
1.5 ± 0.5 V
87.5 MHz
108 MHz