Panasonic RC-Q500 Service Manual page 6

Signal Generator or Sweep Generator
Connections
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-IF ALIGNMENT
Signal Generator or Sweep Generator
Connections
Connect to test
point TP3 through
ceramic capacitor.
Negative side to
test point TP2.
[*2] Two output responses will be present; proper tuning is the center frequency.
- FM-RF ALIGNMENT
Frequency
136 kHz Tuning
capacitor fully
closed.
297 kHz Tuning
capacitor fully
opened.
136 kHz Tune to signal
297 kHz
Frequency
10.7 MHz (Sweep) Point of non-
interference.
(on/about 90
MHz)
Radio Dial Indicator
Setting (Electronic
Voltmeter or
oscilloscope)
Connect vert.
amp. of scope to
test point TP3.
Negative side to
test point TP2.
Radio Dial Indicator
Setting (Electronic
Voltmeter or
oscilloscope)
Connect vert.
amp. of scope to
test point TP3.
Negative side to
test point TP2.
Adjustment
(Shown in Fig.1)
L54 (LW OSC Adjust
Coil) maximum
output.
CT1 (LW OSC
Trimmer)
[*1] L55 (LW Adjust
ANT Coil) maximum
output.
by L5
moving
along
ferrite
CT2 (LW ANT Adjust
Trimmer) maximum
output.
Adjustment(Shown
in Fig.1)
T50 (FM 1st) Waveform
shown
Fig.2.
T52 (FM 2nd) Waveform
shown
Fig.3.
Remarks
Remarks