Panasonic RF-2400 Service Manual page 13

READ CAREFULLY BEFORE ATTEMPTING ALIGNMENT
1. Set power source voltage to 230/240 V AC.
2. Set volume control to maximum.
3. Set band switch to AM, FM or LW.
4. Output of signal generator should be no higher than necessary to obtain an output reading.
- AM-IF ALIGNMENT
Signal Generator or Sweep
Generator
Connections
Fashion a loop of
several turns of
wire and radiate
signal into loop of
receiver.
- 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.
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
Radio Dial Setting
Frequency
459 kHz 30% Point of non-
Mod. at 400 Hz interference. (on/
about 600 kHz)
Frequency
511 kHz Variable
capacitor fully
closed.
1650 kHz Variable
capacitor fully
opened.
600 kHz Tune to signal Connect vert.
1500 kHz Tune to signal Connect vert.
Indicator
(Electronic
Voltmeter or
oscilloscope)
Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5.
Radio Dial Indicator
Setting (Electronic
Voltmeter or
oscilloscope)
Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5.
Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5.
amp. of scope to
test point TP4.
Negative side to
test point TP5.
amp. of scope to
test point TP4.
Negative side to
test point TP5.
10
Adjustment
(Shown in Fig. 1
)
T2 (AM IFT) Adjust
maximum
output.
Adjustment
(Shown in Fig. 1
)
L7 (AM OSC Adjust
Coil) maximum
output.
CT3 (AM OSC Adjust
Trimmer) maximum
output.
[*1] L3 (AM ANT Adjust
Coil) maximum
output.
by L5
moving
along
ferrite
CT4 (AM ANT Adjust
Trimmer) maximum
output.
Remarks
Remarks