Sony PMC-D305 - TUNER SECTION ADJUSTMENTS

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AM FREQUENCY COVERAGE CONFIRM
Confirm for a reading on digital voltmeter.
Confirm 530 kHz <531 kHz> 1.0 ±0.5 V
Confirm 1,710 kHz <1611 kHz> 5.0 ± 1.0 V <4.8 ± 1.0 V>
TUNER SECTION
Precautions in Repairing
Note: As a FM front-end (TU1) is difficult to repair if faulty, replace it
with new one.
[AM]
FUNCTION Switch: RADIO
BAND Switch: AM, MW, LW
[FM]
FUNCTION Switch: RADIO
BAND Switch: FM
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
• Abbreviation
D305: PMC-D305
D305L: PMC-D305L
AM RF SSG
30% amplitude modulation by
400 Hz signal
output level: as low as possible
Put the lead-wire
antenna close to
the set.
FM RF SSG
0.01
µ F
22.5 kHz frequency deviation
by 400 Hz signal.
output level: as low as possible
to ANT IN termina
l
+
–
set
32 Ω
PHONES jack
level meter
+
–
digital voltmete
r
TP (VT)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
CFT1 450 kHz
Note: Not use the AM RF signal generator in this confirm.
< >: Australian model
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 620 kHz
CT2 1,400 kHz
MW FREQUENCY COVERAGE CONFIRM
Confirm for a reading on digital voltmeter.
Confirm 531 kHz 0.85 ± 0.5 V
Confirm 1611 kHz 6.8 ± 1.5 V
Note: Not use the AM RF signal generator in this confirm.
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 621 kHz
CT4 1,404 kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a reading on digital voltmeter.
Confirm 153 kHz 0.7 ± 0.5 V
L4 279 kHz 7.5 ± 0.2 V
Note: Not use the AM RF signal generator in this adjustment.
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L5 162 kHz
CT5 261 kHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a reading on digital voltmeter.
L2 87.5 MHz 1.6 ± 0.4 V
Confirm 108 MHz 6.5 ± 0.5 V
Note: Not use the FM RF signal generator in this adjustment.
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 87.5 MHz
CT1 108 MHz
Adjustment Location: TUNER board (See page 29.)
(D305)
(D305)
(D305L)
(D305L)
(D305L)
(D305L)
(D305)
(D305)