Measurements And Adjustments; Tuner Section - Panasonic RX-D50EE Service Manual

11 Measurements and Adjustments

11.1. Tuner Section

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