Sommerkamp TS-5030P, Инструкция по эксплуатации

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2 - 3 - 2 Procedure :
1: Connect the counter via 0.01
t l ï
to TP. 7 and check the frequencies of the
2nd RX oscillator in reference to the following chart:
Channei 1,
5, 9,
13,
21, 10,180 MHz ± 2 0 0 Hz
2,
6, 10, 14,
22, 10,170 MHz ± 2 0 0 Hz
3,
7,
H ,
15,
24, 10,160 MHz ± 2 0 0 Hz
4, 8,
12, .16,
23, 10,140 MHz ± 2 0 0 Hz
2. Connect the counter via 0.01
fj¥
to TP. 8 and check the frequencies of the
3.
2nd TX oscillator in reference to the following chart, while transmitting:
""N.
Channei ±
1;
5, 9,
13, 17, 2 1л
10,635.M H z ± 2 0 0 Hz
if4
2,
6,
10, 14, 18,
22;r 10,625. MHz ± 2 0 0 Hz
T 3,
7, 11,
15,
19,
24,7- 10,615. MHz ± 2 0 0 Hz
Ü
4, 8,
12, 16, 20,
23, V 10,595 MHz ± 2 0 0 Hz
Connect the counter via 0.01 ,«F to TP. 9 and cheçk the frequencies of the
master Xtal oscillator in refeijêfljë to the following chart:
Channei
1— 4
5— 8
9— 12
13— 16
17— 20
21/22, 23,
24
37,-æ©- MHz
37,650 MHz
37,700 MHz
3 7 ,7 50 .MHz
U
37,800 MHz
- ' 37,850 MHz
± 37,800 MHz
± 800 Hz
± 8 0 0 Hz
± 800 Hz
± 800 Hz
± 800 Hz
± 800 Hz
± 800 Hz
4. Check the output voltages of ,the above oscillators with the RF-Voltmeter
at TP. 7 (5V),, TP. 8 (5V) and TP. 9 (3V).
If necessary adjust L9 to the correct voltage and frequencies at TP. 9.
5. In case the above datas are not obtainable, check the voltages on TR 8, 9,
10, TP. 2, D -6 as indicated on the schematic diagram. Replace if necessary
any defective crystals and components.
2 - 4 - 0 RECEIVER CHECKOUT AND ALIGNMENT
2 - 4 - 1 Testequipment required:
Very, stable signal generator 455 KHz to 27,275 MHz
Multitester 50K ohm /V
AF-Voltm eter
2 - 4 - 2 Checkout procedure
1. Connect the signal generator to the antenna jack and the A F-Voltm eter
across the speaker.
2. Set the channei selector to 13 and tune the signalgenerator to 27,115
MHz and set the modulation to 1 K H z /3 0 % .
3. Set the output attenuator of the signal generator to 0.35
pN
and the
Volume control for a reading of 1 Voit on the AF-Voltmeter.
4. Switch the signal generator to CW without touching thé attenuator and
take the reading from the AF-Voltm eter ( 0 .3 Volt or less). This indicates
the Signal to Noise ratio of the re c e iv e r(S /N + N )is 0.35
fjN
for 1 0 d b (S /N + N )
5. To check the overall sensitivity of the receiver, turn the volume control
to max. and switch the signai generator to 1 K H z/3 0 % modulation and
set the attenuator to 0 .3 5 /iV. The AF-Voltm eter shall read 2V (500m w /
8 Ohm) or more.
7 —