13
HCD-EP50
no mark: EXCEPT AEP, UK, Chinese models
< > : AEP, UK, Chinese models
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1 450 kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
T8
530 kHz
1.3 ± 0.1 V
<531 kHz>
Confirmation
1,710 kHz 7.8 ± 0.5 V
<1,602 kHz> <7.1 ± 0.5 V>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
T6 603 kHz
TC1 1,404 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L901
87.5 MHz 2.4 ± 0.1 V <1.4 to 1.6 V>
<Confirmation>
Confirmation 108 MHz 6.8 ± 0.5 V <7.3 to 8.5 V>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L902 90.1 MHz
TC901 106.1 MHz
(EXCEPT AEP, UK, Chinese models)
Adjustment Location: MAIN board (See page 14)
TUNER SECTION 0 dB=1 µV
[AM]
Setting:
Function : TUNER
Band switch: AM
[FM]
Setting:
Function : TUNER
Band switch: FM
• Repeat the procedures in each adjustment several times, and the
frequency coverage and 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
32 Ω
MAIN board
SPEAKER terminal (CN17
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
+
–
level meter
set
32 Ω
0.01 µF
MAIN board
FM ANT
MAIN board
SPEAKER terminal (CN17
digital voltmeter
100 kΩ
MAIN board
TP (FM VT)
TP (AM VT)
Ver 1.1
To Next Page
