Sony CFS-K1066, Service Manual

– 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-K1066S

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

     [ TUNER BOARD]
     (Conductor side)

    [ TUNER BOARD]
    (Conductor side)

CFS-K1066

CFS-K1066S

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

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

FM RF signal
generator

Carrier frequency : 98MHz 
Modulation : no modulation
Output level : 0.032V (90dB)

telescopic
antenna
terminal

set

0.01

µ

F