Sony ICF-CD820 Service Manual page 10

FM STEREO Adjustment
Procedure:
FM RF SSG
Carrier frequency: 98 MHz
Modulation: no modulation
Output level: 0.032 V (90 dB)
1. Connect the frequency counter to 4 and 7 pins of IC1 as
shown the figure right.
2. Tune the set to 98 MHz.
3. Adjust RV1 for 76 kHz ± 500 Hz reading on frequency counter.
Adjustment Location:
[MAIN Board] (Component Side)
FM Frequency Coverage
Adjustment
CT6 (CD820L: AEP, UK)
LW Frequency Coverage Adjustment
0.01 µ F
' '
FM lead wire antenna terminal
RV1
FM Stereo Adjustment (76 kHz)
L3 (Italian)
L3 (Except Italian)
CT2
Connection:
frequency counter
+
–
T1
AM IF Adjustment
CT5 (CD820L: AEP, UK)
LW Tracking Adjustment
L4
CT4
(CD820L: AEP, UK):
AM (MW) Frequncy Coverage Adjustment
(CD820L: FR):
LW Frequency Coverage Adjustment
– 10 –
MAIN Board
33 k Ω
IC1 Pin 7
IC1 Pin 4
L1-2 (CD820L: AEP, UK)
LW Tracking Adjustment
L2
FM Tracking
Adjustment
CT1
(Except CD820L: FR):
CT3
AM (MW) Tracking
Adjustment
(CD820L: FR):
L1
L1-1 LW Tracking Adjustment