CFS-1058, CFS-1058S - Sony Audio Service Manual (repair manual). Page 10

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– 10 –
FM VCO Adjustment
Procedure :
1. Connect the frequency counter to 4 and 7 pins of IC1 as shown
the figure below.
2. Turn the set to 98MHz.
3. Adjust RV1 for 76kHz ±500Hz reading on frequency counter.
AM IF ALIGNMENT
Adjust for a maximum reading on level meter.
T1
455kHz
AM (MW) FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
520kHz
CT4
1,680kHz
AM (MW) TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
600kHz
CT3
1,400kHz
CFS-1058S
SW1 FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L6
2.2MHz
CT6
7.3MHz
SW1 TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
L5
2.2MHz
CT5
7.3MHz
SW2 FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L8
6.8MHz
CT8
22.5MHz
SW2 TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
L7
6.8MHz
CT7
22.5MHz
FM FREQUENCY COVERAGE  ADJUSTMENT
Adjust for a maximum reading on level meter.
L2
86.5MHz
CT2
109.5MHz
FM TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
86.5MHz
CT1
109.5MHz
FM RF signal
generator
Carrier frequency : 98MHz 
Modulation : no modulation
Output level : 0.032V (90dB)
telescopic
antenna
terminal
set
0.01
µ
F

[TUNER BOARD]
 (Conductor side)

[TUNER BOARD]
 (Conductor side)
CFS-1058
CFS-1058S
CF2
C7
C9
C12
C15
C11
CF1
CF4
1
2
3
1
2
3
1
2
3
1
5
10
15
30
25
20
16
frequency counter
1
µ
F
33k
Ω
IC1
1
5
10
15
30
25
20
16
CF2
C10
C12
C15
C18
C14
C5
CF3
CF1
IC1
frequency counter
1
µ
F
33k
Ω

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