Sony ICF-SW11 - SW FREQUENCY CENTER ADJUSTMENT

— 7 —
D2
TUNE
CF2
L29
R16
C36
C39
L6
L7
L26
2
1
CV-1,CT-1
TUNING
CT1
-
1
3
E
B
C
C
C
B
B
E
E
1
5
10
1516
20
30
25
+
–
Frequency counte
r
33kΩ
1µF
SW FREQUENCY CENTER ADJUSTMENT
Adjust for a maximum reading on Level meter.
SW1 L25 4.85MHz (3.88MHz)
SW2 L24 6MHz
SW3 L23 7.2MHz
SW4 L22 9.62MHz
SW5 L21 11.8MHz
SW6 L20 13.65MHz
SW7 L19 15.35MHz
SW8 L18 17.65MHz
SW9 L17 21.6MHz
1. After completion of SW1-9 adjustment, confirm that each center
frequency +910kHz signal is received from AM reference signal
generator.
2. If not received, readjust, then repeat 1.
( ) : Tourist model
[VCO Adjustment]
Procedure :
Center frequency :98 MHz
Modulation : no modulation
Output level : 0.1 V (100dB)
telescopic antenna input
FM RF signal
generator
Set
1. Insert the plug to Headphones jack (J1).
2. Connect frequency counter to the positions shown the figure
right.
3. Tune the set to 98 MHz.
4. Adjust RV1 so that the frequency counter reading becomes
76,000Hz.
Specification Value :
Frequency counter
75,950 – 76,050 Hz
Adjustment Location : MAIN board (component side)
MAIN BOARD (conductor side)
L24 L21 L25 L23 L22
SW Frequency Center Adjustment
L20 L19
L18
L17
L7 CT1-4
CT1-3
T1
AM IF
Adjustment
L1
MW
Tracking
Adjustment
L2
LW
Tracking
Adjustment
L5
LW Frequency
Coverage
Adjustment
CT1-2 MW Frequency
Coverage
Adjustment
CT2 LW Tracking
Adjustment
CT1-1 MW Tracking
Adjustment
FM Tracking
Adjustment
L4
MW Frequency
Coverage
Adjustment
CT3
LW Frequency
Coverage
Adjustment
L6
FM Frequency Coverage Adjustment
RV1
VCO
Adjustment