Read Sony ICF-CD2000 / ICF-CD2000S Service Manual online
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AM (MW) FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L13
530 (531) kHz
1.7 V
Confirmation
1,710 (1,602) kHz
8.5 V (9.0 V)
no mark: US, CND ( ) : AEP, UK, E, SP, JE
AM (MW) TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L7
580 kHz (621 kHz) <621 kHz>
CT2
1,490 kHz (1,404 kHz) <1,485kHz>
no mark: US, CND ( ) : AEP, UK < > : E, SP, JE
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
87.5 MHz <76.0 MHz>
2.3 V <1.5 V>
Confirmation
108 MHz <108.0 MHz>
11 V <8.8 V>
no mark: US, CND, AEP, UK < > : E, SP, JE
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L14
87.5 MHz
CT2
108.0 MHz
SW FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L12
5.8 MHz
1.75 ± 0.1 V
Confirmation
15.6 MHz
8.5 V ± 1 V
ICF-CD2000S
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L8
5.8 MHz
CT1
15.6 MHz
ICF-CD2000S
Adjustment Location: MAIN board (See page 16)
AM IF Adjustment
Procedure:
1. Connect the IF swimmer scope as shown below.
2. Set the BAND switch to AM position.
3. Adjust the T1 so that the frequency of IF swimmer scope is
1. Connect the IF swimmer scope as shown below.
2. Set the BAND switch to AM position.
3. Adjust the T1 so that the frequency of IF swimmer scope is
450 kHz and the waveform is symmetric in relation to the maxi-
mum value.
mum value.
Adjustment Location: MAIN board (See page 16)
SECTION 6
ELECTRICAL ADJUSTMENTS
TUNER SECTION
0 dB=1 µV
[AM (MW)]
Setting:
Band switch : AM (MW)
Band switch : AM (MW)
[FM]
Setting:
Band switch : FM
Band switch : FM
[SW] (ICF-CD2000S)
Setting:
Band switch : SW
Band switch : SW
• Repeat the procedures in each tracking adjustment several times,
and the frequency coverage and tracking adjustments should be
finally done by the trimmer capacitors.
finally done by the trimmer capacitors.
AM RF SSG
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
32
Ω
i
(headphone) jack (J301)
FM RF SSG
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
deviation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
i
(headphone) jack (J301)
set
32
Ω
0.01
µ
F
MAIN board
FM/SW Telescopic
Antenna (ANT1)
FM/SW Telescopic
Antenna (ANT1)
digital voltmeter
MAIN board
TP (VT)
+
–
–
AM RF SSG
30% amplitude
modulation by 400 Hz
signal
Output level: as low as possible
modulation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
i
(headphone) jack (J301)
set
32
Ω
0.01
µ
F
MAIN board
FM/SW Telescopic
Antenna (ANT1)
FM/SW Telescopic
Antenna (ANT1)
0.047
µ
F
10
µ
F
IN OUT
+
MAIN board
IF swimmer
scope
AM (MW) Ferrite-Rod Antenna
(L7)
TP (DET OUT)
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