– 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
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 ASSY onto the CV shaft in a
direction as a figure.
3
Secure the gear ASSY with screw.
Gear (A),tuning capacitor
4
2
1
3
Stopper
Spring
(gear)
Hole
A
Projection
Gear (B),tuning capacitor
B
Hole
Spring (gear)
3
Screw (1.7x3)
2
Gear ASSY
1
CV shaft
Main board
Knob (tune)
1
Put a point of spring (gear) in a hole of “gear (A), tuning
capacitor” and install it.
2
Install “gear (B), tuning capacitor” in a direction as a figure.
3
Turn the “gear (B), tuning capacitor” till a position of
B
fits
A
.
4
Hang the spring (gear) with a stopper.
SECTION 4
ELECTRICAL ADJUSTMENTS
TUNER SECTION
MW Section
Procedure :
BAND : MW
SW Section
Procedure :
BAND : SW
FM Section
Procedure :
BAND : FM
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.
•
Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
< > : Saudi Arabia 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
620kHz
CT1
1,400kHz
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
5.8MHz
CT6
18.5MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
5.8MHz
CT5
18.5MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
86.5MHz
<87.35MHz>
CT3
109.5MHz <108.25MHz>
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
86.5MHz
<87.35MHz>
CT2
109.5MHz <108.25MHz>
L6 : SW Frequency Coverage Adjustment
CT3 : FM Frequency Coverage Adjustment
L4 : FM Frequency Coverage Adjustment
L5 : MW Frequency Coverage Adjustment
CT6 : SW Frequency Coverage Adjustment
CT4 : MW Frequency Coverage Adjustment
T1 : AM IF Adjustment
L1 : MW Tracking Adjustment
CT1 : MW Tracking Adjustment
CT2 : FM Tracking Adjustment
CT5 : SW Tracking Adjustment
L2 : SW Tracking Adjustment
L3 : FM Tracking Adjustment
Adjustment Location : Main board (Component side)
AM RF signal
generator
12PF
30% amplitude modulation by
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
set
32
Ω
phone jack (J1)
level meter
FM RF signal
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
0.01
µ
F
0dB=1
µ
V
