Sony HCD-E301 Service Manual page 12

HCD-E301
TUNER SECTION 0 dB=1 V
[AM]
Setting:
Function : TUNER
Band switch : AM
Put the lead-wire
AM RF signal
antenna close to
generator
the set.
set
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
[FM]
Setting:
Function : TUNER
Band switch : FM
FM RF signal
MAIN board
generator
FM ANT
0.01 F
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
MAIN board
TP10 (FM VT)
TP11 (AM VT)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
Confirmation 531 kHz
T102 1,602 kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L110
TC102
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L104 87.6 MHz
Confirmation 108 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L103
TC101
12
level meter
32
+
–
HEADPHONE board
PHONES jack (JK401)
level meter
32
+
set
–
HEADPHONE board
PHONES jack (JK401)
digital voltmeter
100 k
1.5 0.2 V
7.3 0.3 V
603 kHz
1,404 kHz
2.1 0.2 V
7.0 0.4 V
89.9 MHz
105.9 MHz
Adjustment Location and Connecting Points
– MAIN BOARD (Component Side) –
TC102 AM Tracking
}
L110 Adjustment
T102
AM Frequency Coverage Adjustment
– MAIN BOARD (Conductor Side) –
L104 FM Frequency
Coverage Adjustment
L103 } FM Tracking
TC101 Adjustment
IC101
TP10 TP11
(FM VT) (AM VT)