16
ICF-DVD57TV
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
Confirmation
530 kHz
1.0
±
0.1 V
L4
1,710 kHz
5.3
±
0.7 V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3
620 kHz
CT3
1,400 kHz
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
T2
10.7 MHz
FM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display Reading on Digital Voltmeter
Confirmation
87.5 MHz
1.3
±
0.2 V
L2
108 MHz
3.0
±
0.2 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment and Connecting Location:
TU board (See page 17)
TUNER SECTION
0 dB=1
µ
V
[AM]
Setting:
Function: RADIO
Band: AM
[FM]
Setting:
Function: RADIO
Band : FM
•
Repeat the procedures in each adjustment several times, and
the tracking adjustments should be finally done by the trimmer
capacitors.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
Put the lead-wire
antenna close to
the set.
+
–
level meter
set
6
Ω
MAIN board
CN302 pin
2
MAIN board
CN302 pin
1
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level:
as low as possible
+
–
level meter
MAIN board
CN302 pin
2
MAIN board
CN302 pin
1
set
6
Ω
0.01
µ
F
TU board
TP (GND)
TU board
TP (ANT)
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
TU board
SECTION 5
ELECTRICAL ADJUSTMENTS
