Read Sony HCD-N555AVK / LBT-N555AVK Service Manual online
— 14 —
SW OSC Voltage Adjustment
(EA model)
(EA model)
Setting:
Band: SW
Band: SW
Procedure:
1. Connect digital Voltmeter to diode D1 center lead and ground.
2. Adjust for a following value reading on digital voltmeter.
1. Connect digital Voltmeter to diode D1 center lead and ground.
2. Adjust for a following value reading on digital voltmeter.
SW Tracking Adjustment
(EA model)
(EA model)
Setting:
Band: SW
Band: SW
Procedure:
Adjust for maximum reading on level meter.
Adjust for maximum reading on level meter.
SW
• Repeat the procedures is each adjustment several times, and the
frequency coverage and tracking adjustment should be finally done
by the trimmer capacitors.
by the trimmer capacitors.
Adjustment Location
[TCB BOARD] — Component Side —
• Abbreviation
EA
: Saudi Arabia model
set
SPEAKER terminal
CV2
CV1
T2
T1
CV1, T1
SW Tracking
Adjustment
SW Tracking
Adjustment
level meter
AM RF SSG
30% amplitude
modulation by
400Hz signal
modulation by
400Hz signal
AM ANTENNA terminal
TM1
RV41
RV42
D1, CV2, T2
SW OSC Voltage
Adjustment
SW OSC Voltage
Adjustment
D1
IC41
Adjustment
part
Reading on digital
voltmeter
SW
5.95 MHz
17.9 MHz
T2
CV2
1.2 ± 0.1 V
8.5 ± 0.2 V
7 MHz
17 MHz
T1
CV1
Set frequency
Set frequency
Adjustment
part
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