Tuner Section Adjustments; Am-Rf Alignment; Fm-Rf Alignment; Head Azimuth Alignment - Panasonic RX-ES22E Service Manual

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15.1 Tuner Section
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AM-RF ALIGNMENT

Signal Generator or Sweep Generator
Connections
Fashion a loop of several
turns of wire and radiate
signal into loop of receiver.
Fashion a loop of several
turns of wire and radiate
signal into loop of receiver.
[*1] Fix antenna coil with wax after completing alignment.

FM-RF ALIGNMENT

Signal Generator or Sweep Generator
Connections
Fashion a loop of several
turns of wire and radiate
signal into loop of receiver.

HEAD AZIMUTH ALIGNMENT

Test Tape
QZZCFM(8 kHz, -20 dB) Headphone Jack (32Ω)Fabricate the plug as
shown in Fig. 2 and then connect the lead
wires of the plug to the measuring instrument.
file:///C|/Documents and Settings/eDOK/Рабочий стол/RX-ES22/s1501000000.html (1 of 3)06.11.2005 16:03:05
READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
1. Set selector switch to AM or TAPE.2. Set volume level to 40.
3. Output of signal generator should be no higher than necessary to obtain an output reading.
Radio Dial Setting
Frequency
594 kHz Point of non-interference
(on/about 600 kHz)
1503 kHz Point of non-interference
(on/about 600 kHz)
Radio Dial Setting
Frequency
87.5 MHz Point of non-interference
(on/about 600 kHz)
Indicator (Electronic Voltmeter or
oscilloscope)
Indicator (Electronic
Voltmeter or oscilloscope)
Headphone Jack (32Ω)
Fabricate the plug as shown
in Fig. 2 and then connect
the lead wires of the plug to
the measuring instrument.
Headphone Jack (32Ω)
Fabricate the plug as shown
in Fig. 2 and then connect
the lead wires of the plug to
the measuring instrument.
Indicator (Electronic
Voltmeter or oscilloscope)
Headphone Jack (32Ω)
Fabricate the plug as shown
in Fig. 2 and then connect
the lead wires of the plug to
the measuring instrument.
Adjustment
Azimuth Screw(Shown in Fig. 3) 1. Insert a test tape (QZZFCM) and start
Adjustment(Shown in
Fig.1)
[*1] L3 (AM ANT coil) Adjust for maximum
output.
CT1 (AM ANT Adjust for maximum
Trimmer) output.
Adjustment(Shown in
Fig.1)
[*1] L4 (AM IFT) Adjust for maximum
output.
Remarks
playback in the forward direction.2. Adjust
the azimuth screw for maximum waveform
on the oscilloscope and the similar output
on L and R channels.
3. When adjustingthe azimuth in the
reverse direction, repeat the adjustment
several times because of a little slip on the
forward direction side.
Remarks
Remarks