Panasonic RF-2400, Руководство по обслуживанию

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- FM-RF ALIGNMENT
Signal Generator or Sweep Generator Radio Dial
Setting
Indicator
(Electronic
Voltmeter or
oscilloscope)
Adjustment
(Shown in Fig. 1 )
Remarks
Connections Frequency
Connect to test
point TP1 through
FM dummy
antenna. Negative
side to test point
TP2. 86.2 MHz Variable
capacitor fully
closed. Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5. L5 (FM OSC Coil) [*2]
for
output.
109.2 MHz Variable
capacitor fully
opened. Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5. CT1 (FM OSC
Trimmer) [*2]
for
output.
106 MHz Variable
capacitor fully
opened. Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5. CT2 (FM ANT
Trimmer) [*2]
for
output.
[*2] Three output response will be present; proper tuning is the outer frequency.
- FM-IF ALIGNMENT
Signal Generator or Sweep Generator Radio Dial
Setting
Indicator
(Electronic
Voltmeter or
oscilloscope)
Adjustment
(Shown in Fig. 1 )
Remarks
Connections Frequency
Connect to test
point TP3 through
ceramic capacitor.
Negative side to
test point TP2. 10.7 MHz (Sweep) Point of non-
interference.
(on/about 90
MHz)
Connect vert.
amp. of scope to
test point TP4.
Negative side to
test point TP5. T1 (FM IFT) Waveform
shown
Fig.
5.2. Adjustment points
Fig. 1
11