Service_Manual_RCI_2950DX_ENG.pdf
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1、 - 1 - RCI-2950 DX RCI-2970 DX TABLE OF CONTENTS CHAPTER 1 PAGE SPECIFICATIONS 1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2
2、 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CHAPTER 2 INTRODUCTION 2.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . 3 CHAPTER 3 OPERATION 3.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.1 Control SSB : 25 W PEP RF Power Output (RCI-2970DX) AM/FM/CW : 50 W ; SSB : 150 W PEP RF Transmit Modes AM/FM/SSB/CW Modulat
4、ion A3E/16F3/J3E/A1A Spurious Emissions -50 dB Carrier Suppression -50 dB Antenna Impedance 50 Ohms 1.2 RECEIVER Sensitivity For 10dB S/N (AM; CW/SSB) Sensitivity for 12dB S/N (FM) 0.5V; 0.15 V 2V S/N 10 dB Balance between 24.890 and 29.699 MHz USB Sensitivity Set radio to USB RX mode. Set VOL Contr
5、ol Fully Clockwise. RF SG setting 28.001 MHz, 0.5uV. Mod off. L11, L12 Audio Output 2V S/N 10 dB LSB Sensitivity Set radio to LSB RX mode. Set VOL Control Fully Clockwise. RF SG setting 27.999 MHz, 0.5uV. Mod off. L11, L12 Audio Output 2V S/N 10 dB FM Distortion Set radio to 28.000 MHz, FM RX mode.
6、Set MODE switch to FM mode. RF SG setting 28.000 MHz, 1mV. Mod 3KHz. L4 Audio Output 3V Distortion 2V AM Squelch Set radio to 28.000 MHz, AM RX mode. Set SQ Control Fully Clockwise. RF SG setting 28.000 MHz, 1mV. Mod 30%. VR4 Slowly Adjust very slowly until squelch just open. SSB Squelch Set radio t
7、o USB RX mode. Set SQ Control Fully Clockwise. RF SG setting 28.001 MHz, 1mV. Mod off. VR3 Slowly Adjust very slowly until squelch just open. AM S/RF Meter AM S-Meter Set radio to 28.000 MHz, AM RX mode. RF SG setting 28.000 MHz, 100uV. Mod 30%. VR1 “6 bar” on the Level Meter Indicator. SSB S-Meter
8、Set radio to USB RX mode. RF SG setting 28.001 MHz, 100uV. Mod off. VR2 “6 bar” on the Level Meter Indicator. Figure 6-1 Transmitter test setup - 21 - Figure 6-2 Receiver test setup - 22 - RCI-2950 DX RCI-2970 DX CHAPTER 7 MAINTENANCE 7.0 PRECAUTIONS The inherent quality of the solid-state component
9、s used in this transceiver will provide many years of continuous use. Taking the following precautions will prevent damage to the transceiver. (1) Never key the transmitter unless an antenna or suitable dummy load is connected to the antenna receptacle. (2) Ensure that the input voltage does not exc
10、eed 16 VDC or fall below 11 VDC. (3) During alignment, do not transmit for more than 10 seconds at a time. Transmitting over long periods can cause heat built-up and cause transmitter damage. 7.1 PERIODIC INSPECTION This unit is aligned at the factory to deliver maximum performance. However, continu
11、ed performance cannot be expected without periodic inspection and maintenance. Important points to be checked regularly are as follows; Check Item Action Whip antenna (option) If cracked or broken, replace it. Coaxial cable If sheath is cracked, seal with vinyl tape. If immersed with water, install
12、new coaxial cable. Coaxial & power plug connections If loosened, reconnect. If corroded, clean contacts. Battery connection If corroded, clean power terminals. Ground terminal If corroded, clean terminal. 7.2 FUSE REPLACEMENT To protect the equipment from serious damage, a fuse is provided on the po
13、wer supply lines. The fuse protect against overvoltage / reverse polarity or internal fault of the equipment. If the fuse has blown, first find out the cause of the trouble before replacing it. A fuse rated for more than 7A for RCI-2950 DX and 20A for RCI-2970 DX should not be used, since it may per
14、manently damage the equipment. Damage due to overfusing is not covered by the warranty. - 23 - RCI-2950 DX RCI-2970 DX CHAPTER 8 DIAGRAMS & PARTS LIST 8.0 GENERAL Information on most electrical and mechanical parts is included in the parts list. The reference designators are in alphanumeric order. 8
15、.1 ORDERING REPLACEMENT PARTS Parts orders should be referred to the parts department at: Ranger Communications, Inc. 401 W. 35TH ST. NATIONAL CITY, CA 91950-7909 Tel: (619) 426-6440 Fax: (619) 426-3788 - 24 - PART LIST: RCI-2950 DX / RCI-2970 DX CH SW P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER
16、DESCRIPTION 1 EPT295090A CH SW P.C.B 2 PCB CONN/S 3PIN (COPPER SIDE) CC0501037L 0.01F 50WV 3 CH SW P.C.B EWRT32051S ROTARY SW 4 CH SW P.C.B EX07N41216 PCB CONN/S 3PIN REMARK: COPPER SIDE (BLUE) - 25 - PART LIST: RCI-2950 DX SWR P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EPT360041Z
17、SWR P.C.B 2 R402 RCP141014Z 100 OHM 1/4W 3 R401 RCP141214Z 120 OHM 1/4W 4 C401,C402 CC0501037L 0.01F 50WV 5 D401,D402 ED1N00060P DIODE 1N60P 6 JP2,JP3 WX01070710 JUMPER WIRE REMARK: COPPER SIDE (BLUE) - 26 - PART LIST: RCI-2970 DX POWER P.C.B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EP
18、A010010A POWER P.C.B 2 R904 RCU141094Z 1 OHM 1/4W 3 R905,R906 RCU142204Z 22 OHM 1/4W 4 R902 RCM141024A 1K OHM 1/2 W 5 R911 RCP121034Z 10K OHM 1/2W 6 L902 RCP101004Z 10 OHM 1W 7 R903 RCP202204Z 22 OHM 2W 8 R910 RE10300069 10K OHM 9 BETWEEN C901 & G RCP141024Z 1K OHM 1/4W 10 T RFP202214Z 220 OHM 2W 11
19、 COPPER CC0502204L 22PF 50WV - 27 - ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 12 C902,C903 CC0503915L 390PF 50WV 13 C906,C926,C932,C934, C937 CC0501037L 0.01F 50WV 14 C905,C920,C921,C923x2 , C924x2,C925,C935,C939 ,C941,T901-T902x2, C927,C928,C930,C931, C933,C940,C929 CC0501047L 0.1F 50WV
20、15 C901 CC0508204A 82PF 50WV 16 C918 CD3006804Z 68PF 300WV 17 C916 CD3001514Z 150PF 300WV 18 C917 CD5001018Z 100PF 500WV 19 C908,C910,C936 CD3001814Z 180PF 300WV 20 C945 CD5005614Z 560PF 500WV 21 C909 CD5008214Z 820PF 500WV 22 C919 CX0071037Z HV DISC/C 0.01Uf 23 C922 CE0162277Z 220F 16WV 24 C938 CE0
21、352277Z 220F 16WV 25 TR903 T2SD02531Z TR 2SD2531 26 TR901,TR902 T2SC02290Z TR 2SC2290 27 D903,D904 ED1N04148Z DIODE 1N4148 28 D901,D902 ED1N04001Z DIODE 1N4001 29 L903,L904 ECSPG18069 SPRING COIL 30 L901 ECBAD18553 BEAD COIL 31 T901 ECRFZ10096 RF COIL 32 T902 ECRFZ10097 RF COIL 33 R901 RE10200046 S/
22、F/R IK OHM 34 J901,J902 EX07N41226 PCB CONN/S 2PIN 35 RL901 EX05N40825 RELAY 36 J903,J904 GZZZ50062Z V TYPE JACK 37 J905,J906 GZZZ50011Z C PIN REMARK: TOP: COMPONENT SIDE (WHITE) BOTTOM: COPPER SIDE (WHITE) - 28 - PART LIST: RCI-2950 DX / RCI-2970 DX VR P.C.B (A) ITEM REFERENCE NUMBER RANGER PART NU
23、MBER DESCRIPTION 1 EPT295050Z VR P.C.B (A) 2 C501,C505 CC0501027L 0.001F 50WV 3 RF/MIC RV10203451 VR 1KA-5KB 4 VOL/SQ RV50303453 VR 50KB-50KA 5 J501,J505 EX07N41226 PCB CONN/S 2PIN 6 J502-J504 EX07N41216 PCB CONN/S 3PIN REMARK: LEFT: COMPONENT SIDE RIGHT: COPPER SIDE (BLUE) - 29 - PART LIST: RCI-295
24、0 DX / RCI-2970 DX VR P.C.B (B) ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EPT295060Z VR P.C.B (B) 2 C601 CC0501027L 0.001F 50WV 3 RF/CAL RV10203456 VR 1KB-20KB 4 J601,J602 EX07N41216 PCB CONN/S 3PIN REMARK: LEFT: COMPONENT SIDE RIGHT: COPPER SIDE (BLUE) - 30 - PART LIST: RCI-2950 DX / R
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