Read Sony CFD-E55 Service Manual online
– 15 –
(
): Singapore, Argentine, Australian models
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
AM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
530 kHz (531 kHz)
1.0 ± 0.1 V
Confirmation
1,710 kHz
below 5.6 V (below 5.3 V)
(1,611 kHz)
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3
620 kHz (621 kHz)
CT2
1,400 kHz (1,404 kHz)
FM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
108 MHz
4.0 ± 0.1 V
Confirmation
87.5 MHz
1.7 ± 0.2 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment Location: MAIN board (See page 16)
TUNER SECTION
0 dB=1
µ
V
[AM]
Setting:
Function : RADIO
BAND button : AM
Function : RADIO
BAND button : AM
[FM]
Setting:
Function : RADIO
BAND button: FM
Function : RADIO
BAND button: FM
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
pacitors.
• Remove FM antenna in FM adjustment.
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
MAIN board
AM RF signal
generator
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
3.2
Ω
POWER board
BH352 pin 1 (TYPE A)
CNP352 pin 1 (TYPE B, C, D)
BH352 pin 1 (TYPE A)
CNP352 pin 1 (TYPE B, C, D)
POWER board
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
FM RF signal
generator
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
set
3.2
Ω
0.01
µ
F
MAIN board
TP (GND)
TP (GND)
MAIN board
TP (ANT)
TP (ANT)
POWER board
BH352 pin 1 (TYPE A)
CNP352 pin 1 (TYPE B, C, D)
BH352 pin 1 (TYPE A)
CNP352 pin 1 (TYPE B, C, D)
POWER board
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
BH352 pin 2 (TYPE A)
CNP352 pin 2 (TYPE B, C, D)
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