Sailor RE2100, Техническое руководство

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3 SERVICE RE2100
1. Disconnect any input to the aerial socket.
2. Connect a voltmeter to test point TP1-1 for measuring the DC-output voltage from the AGC level
detector.
3. Turn the RE2100 on.
4. Select service programme SP-04-0 as described in section 3.10.1. of this manual.
5. Tune the transformer TR01-1 (Receiver Module) and the trimming coil L37-2 (Front End Module)
to maximum meter deflection.
6. Select service programme SP-04-1 (press <STOP> to terminate the first service programme).
7. Tune the transformer TR04-2 and the trimming coils L35-2 and L36-2 to maximum meter deflection.
8. Select service programme SP-04-0.
9. Turn off the AGC and adjust the manual RF GAIN until the DC-output voltage from the AGC level
detector is about 5 volt.
10. Finetune all five components by repeating point 5-7. Remember to turn off the AGC in point 6 after
selecting the service programme SP-04-1.
NOTE! If the DC-output voltage from the AGC level detector is increased to a level above 9 Volt,
it is necessary to readjust the manual RF-gain until the voltage level is about 5 Volt.
11. Press <TUNE> to leave the service programme mode.
3.7.1.2 ADJUSTMENT OF 70 MHz TRANSFORMER (Receiver)
The position number of the 70 MHz transformer is TR01-1 and it is located at the receiver unit (module
1). The adjustment is performed by tuning TR01-1 until the DC-output voltage from the AGC level detector
is maximum.
The tuning is performed by using the service programme SP-04-0. This programme sets-up the first local
oscillator (LO1) as a test signal and therefore no external signal generator is necessary.
1. Execute points 1-4 in section 3.7.1.1.
2. Tune the 70 MHz transformer TR01-1 to maximum meter deflection.
3. Turn off the AGC and adjust the manual RF GAIN until the DC-output voltage from the AGC level
detector is about 5 Volt.
4. Finetune TR01-2.
5. Press <TUNE> to leave the service programme mode.
3.7.1.3 ADJUSTMENT OF SSB/AM-FILTER (Receiver)
The SSB/AM-filter is adjusted by tuning the trimming capacitor C18-1 until the DC-output voltage from
the AGC level detector is maximum.
The trimming capacitor C18-1 is located at the receiver unit (module 1).
The adjustment is performed by using the service programme SP-04-2. This programme sets-up the first
local oscillator (LO1) as a test signal and therefore no external signal generator is necessary.
1. Execute points 1-3 in section 3.7.1.1.
2. Select service programme SP-04-2.
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