Sony S2 Sports Walkman SRF-H11, Service Manual

Page: 8 / 18

8
SRF-H11
TUNER SECTION
• POWER switch : ON
• VOL : MAX
AM Section
BAND switch : AM
FM Section
BAND switch : FM
SECTION 5
ELECTRICAL ADJUSTMENTS
AM RF signal
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
FM RF signal
generator
22.5kHz frequency deviation
by 400Hz signal.
Output level : as low as possible
FM WIRE
ANTENNA input
0.01 F
µ
set
16 Ω
speaker output
level meter
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L5 520kHz
CT1-3 1,650kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L7 620kHz
CT1-4 1,400kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L8 86.5MHz
CT1-1 109.5MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 86.5MHz
CT1-2 109.5MHz
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
Adjustment Location : MAIN board (See page 10)
0 dB=1
µ
V