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(5) ALIGNMENT FOR TIME BASE OF FREQUENCY
a. Required
Instrument
RF Signal Generator (RFSG)
Frequency Counter
b. Alignment
Procedure
Setting Procedure
(1)
Connect a RFSG to ANT IN (TP2) and set frequency to 15.1MHz and
RECEIVING
FREQUENCY
15.1 MHz
output to 40 emf/dB
µ
without modulation.
BAND SW
(2)
Set AM mode to LSB mode and volume turn to maximum.
AM MODE
LSB
(3)
Tune the radio receiving frequency to 15.1MHz by 10 key or tuning
TONE NORM
up/down and set key lock to ON.
(4)
Adjust TC301 to get the speaker output tone beat below 50Hz.
WIDE / NARR.
MONO
NARR.
RF GAIN
MAX.
ADJUSTMENT TC301
c. Instrument
Connection
TC301
TP4
SSVM
Frequency Counter
0.000 KHz
dBµ
15.1 MHz
0%
RFSG
RF OUT
40
TP2
TP5
13
Содержание ATS-909X - WORLD BAND RADIOS
Страница 7: ...9G D2 D36 SWITCH SWITCH 9G 9G ANT1 2 1 CN3 6V BT SP1 RADIO 3V D30 NI MH MAIN PCB BLOCK DIAGRAM 7...
Страница 17: ...TEST POINTS DIAGRAM 17...
Страница 18: ...MAIN PCB TOP VIEW 18...
Страница 19: ...MAIN PCB BOTTOM VIEW 19...
Страница 20: ...CONTROL PCB TOP VIEW 20...
Страница 21: ...CONTROL PCB BOTTOM VIEW 21...
Страница 22: ...KEY PCB TOP VIEW 22...
Страница 23: ...KEY PCB BOTTOM VIEW 23...
Страница 24: ...WIRING DIAGRAM 24...
Страница 37: ...37...
Страница 38: ...IC CIRCUIT BLOCK DIAGRAM 1 IC1 Si4735 D60 2 IC2 UTC7640P 38...
Страница 39: ...3 IC3 TC4066BFN 4 IC4 XC62FP3002PRN 39...
Страница 40: ...5 IC5 NJM2100M 6 IC6 PT2308 40...
Страница 41: ...7 IC7 NJM2073D 8 IC8 PC 17K1 41...
Страница 42: ...9 IC9 MC33340 10 IC10 LD1117AL ADJ 42...
Страница 43: ...11 IC300 24LC32A 12 IC304 MB15A01PFV1 43...
Страница 44: ...13 IC305 UPD78F0513A 14 IC306 XC6202P302PRN 44...