SRF-PSY03 - Sony Audio Service Manual (repair manual). Page 5

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0 dB = 1 µV

Setting:
BAND switch: AM

Setting:
BAND switch: FM

• Repeat the procedures in each adjustment several times, and

the frequency coverage and tracking adjustments should be fi-
nally done by the timmer capacitors.

AM  FREQUENCY  COVERAGE  ADJUSTMENT

Adjust for a maximum reading on level meter

L3

520 kHz

CT1 (3/4)

1,750 kHz

AM  TRACKING  ADJUSTMENT

Adjust for a maximum reading on level meter

L5

600 kHz

CT1 (4/4)

1,400 kHz

FM  FREQUENCY  COVERAGE  ADJUSTMENT

Adjust for a maximum reading on level meter

L6

86.5 MHz

CT1 (1/4)

109.5 MHz

FM  TRACKING  ADJUSTMENT

Adjust for a maximum reading on level meter

L1

86.5 MHz

CT1 (2/4)

109.5 MHz

Setting:
BAND switch: FM

Procedure:
1. Connect the frequency counter to TP (OSC).
2. Adjust L2 for 56.75 MHz reading on the frequency counter.

Specification values: 56.5 to 57.0 MHz

Setting:
BAND switch: FM

Procedure:
1. Connect 10 µF Capacitor between TP (38 kHz) and TP (GND).
2. Connect the frequency counter to TP (VCO).
3. Adjust L4 for 38 kHz reading on the frequency counter.
4. Disconnect 10 µF Capacitor in step 1.

Specification values: 37.95 to 38.05 kHz

AM RF signal 

generator

30% amplitude
modulation by
400 Hz signal
Output level: as low as possible

Put the lead-wire
antenna close to 
the set.

+
–

level meter

set

24 

Ω

2

 jack (HPJ1)

FM RF signal

generator

22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible

+
–

level meter

2

 jack (HPJ1)

TP (RF IN)

set

24 

Ω

0.01 

µ

F

1 

µ

F

50 V

TP (OSC)

+

+
–

frequency counter

1 

µ

F

50 V

TP (VCO)

+

+
–

frequency counter