Panasonic RX-D50EE, Service Manual

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50
11 Measurements and Adjustments
11.1. Tuner Section
G
AM-RF ALIGNMENT
G
FM-RF ALIGNMENT
READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
1. Set selector switch to AM, FM and TAPE.
2. Set volume level to maximum.
3. Output of signal.
Signal Generator or Sweep Generator Radio Dial Setting Indicator (Electronic Voltmeter
or Oscilloscope)
Adjustment
(Shown in Fig.1)
Remarks
Connections Frequency
Fashion a loop of
several
turns of wire and
radiate a signal into
loop ant. of receiver.
540 kHz Point of noninterference.
(on/about 600kHz).
Headphone Jack (32
Ω
)
Fabricate the plug as shown in
Fig.2 and then connect the lead
wires of the plug to the measur-
ing instrument.
[*1] L51 (AM ANT Coil) Adjust for maxi-
mum output.
Fashion a loop of
several
turns of wire and
radiate a signal into
loop ant. of receiver.
522 kHz Point of noninterference.
(on/about 600kHz).
Headphone Jack (32
Ω
)
Fabricate the plug as shown in
Fig.2 and then connect the lead
wires of the plug to the measur-
ing instrument.
L7 (AM OSC) Adjust for maxi-
mum output.
Fashion a loop of
several
turns of wire and
radiate a signal into
loop ant. of receiver.
1404 kHz Point of noninterference. Headphone Jack (32
Ω
)
Fabricate the plug as shown in
Fig.2 and then connect the lead
wires of the plug to the measur-
ing instrument.
CT51 (AM OSC) Adjust for maxi-
mum output.
[*1] Fix antenna coil with after completing alignment.
Signal Generator or Sweep Generator Radio Dial Setting Indicator (Electronic Voltmeter
or Oscilloscope)
Adjustment
(Shown in Fig.1)
Remarks
Connections Frequency
Fashion a loop of
several
turns of wire and
radiate a signal into
loop ant. of receiver.
90 MHz Point of noninterference. Headphone Jack (32
Ω
)
Fabricate the plug as shown in
Fig.2 and then connect the lead
wires of the plug to the measur-
ing instrument.
[*1] L5 (FM ANT Coil) Adjust for maxi-
mum output.
[*1] Fix antenna coil with after completing alignment.