– 5 –
– 6 –
SECTION 3
DIAL POINTER INSTALLATION
Note :
Follow the installation procedure in the numerical order given.
1
Rack
6
Rack
5
Knob (tone)
5
3
Knob (tune)
2
Pointer
Chassis
Chassis
4
Scribed line
Claws
Main board
S2
3
Screw (1.7x3)
2
Gear (A),tuning capacitor
1
CV shaft
Main board
Knob (tune)
1
Insert the rack into the chassis groove.
2
Install the pointer.
3
Install the knob (tune).
4
Slide the rack and align it with the groove on the scribed line.
5
Align the knob (tone) and the S2.
6
Install the chassis to the main board.
1
Turn the CV shaft all thye way counterclockwise.
2
Set the gear (A), tuning capacitor onto the CV shaft in a
direction as a figure.
3
Secure the gear (A), tuning capacitor with screw.
SECTION 4
ELECTRICAL ADJUSTMENTS
TUNER SECTION
MW/LW Section
Procedure :
BAND
: MW/LW
VOLUME : MIN
FM Section
Procedure :
BAND
: FM
VOLUME : MIN
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
0.01
µ
F
set
32
Ω
phone jack (J1)
level meter
•
Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
< > : East European model
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
455kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L5
520kHz
CT4
1,650kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1-1
620kHz
CT1
1,400kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
Confirm
145kHz
CT5
260kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1-2
160kHz
CT6
240kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
86.5MHz <64.0MHz>
CT3
109.5MHz <109.5MHz>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.5MHz <68.0MHz>
CT2
109.5MHz <102.0MHz>
L5 : MW Frequency Coverage Adjustment
CT3 : FM Frequency Coverage Adjustment
L4 : FM Frequency Coverage Adjustment
CT5 : LW Frequency Coverage Adjustment
CT4 : MW Frequency Coverage Adjustment
L1-2 : LW Tracking Adjustment
T1 : AM IF Adjustment
L1-1 : MW Tracking Adjustment
CT1 : MW Tracking Adjustment
CT2 : FM Tracking Adjustment
CT6 : LW Tracking Adjustment
L3 : FM Tracking Adjustment
Adjustment Location : Main board (Component side)
