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Ranger RCI-2950 Service Manual

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RCI 2950

Table of Contents

Specifications
Controls and Connections
Basic Programming Procedures
Technical Analysis of the circuits
Transistors Voltage Chart
DIAGRAMS
Inter-connection Diagram
PCB Layouts and Parts
(EPT295013Z)
Main PCB Parts Layout Top View
Main PCB Copper Side View
LCD PCB
(EPT295021Z)
CPU PCB
(EPT295043Z)
MIC UP/DW
(EPT295080Z)
MIC Jack PCB
(EPT295070Z)
(EPT360040Z)
VR (A) PCB RF/MIC VOL/SQ
VR (B) PCB RF/CAL
CH / Switch PCB
MODE PCB
(EPT295090Z)
Push Button Switch PCB
Este manual es una recopilación de las mejores páginas web. Radioaficion.com,.. No ofrece ninguna garantia sobre el contenido del mismo, ni se hace responsable de la
manipulación indebida de los equipos
Service Manual
(EPT295050Z)
(EPT295060Z)
(EPT295090A)
(EPT295031Z)
Chassis, Miscellaneous & Mechanical Parts
RADIO MODIFICATIONS
MODIFY FOR 26 Mhz -32 Mhz
MODIFY FOR 25 Mhz -33 Mhz
TUNE UP/MOD
Add an Automatic SQUELCH
CAR'S LIGHTER Install
LCD & LEDS
MIKE Wiring
Protect From Polarity Inversions
ALIGNMENT PROCEDURES
TX Alignment
PLL Alignment

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Summary of Contents for Ranger RCI-2950

  • Page 1 PARTS LISTS RCI 2950 Service Manual Capacitors Coils, Transformers, Crystals, Filters Resistors IC's, Transistors Table of Contents Diodes Wire, Jumpers, Connectors Chassis, Miscellaneous & Mechanical Parts Specifications RADIO MODIFICATIONS Controls and Connections Basic Programming Procedures Technical Analysis of the circuits MODIFY FOR 26 Mhz -32 Mhz Transistors Voltage Chart MODIFY FOR 25 Mhz -33 Mhz...
  • Page 2 RCI-2950 Specifications Key Features ·Full Band Coverage - Covers the 10 Meter Amateur Band from 28.0000 to 29.6999 MHz. ·All Mode Operation - Operates on USB, LSB, CW, AM and FM. ·Brightness Control - Four Step LCD brightness control for easy viewing under any condition.
  • Page 3 RCI-2950 Controls and Connections INTRODUCTION This section explains the basic operating procedures for the RCI-2950/2970 amateur 10 meter mobile transceiver. CONTROL & CONNECTIONS 1. FREQUENCY SELECTOR: This control is used to select a desired transmit and receive frequency. It enables you to make a continuous tuning over the entire range of the transceiver.
  • Page 4 6. RF GAIN CONTROL: This control is used to reduce the gain of the RF amplifier under strong conditions. 7. CLARIFIER CONTROL: This control is used to fine tune the received signal for the maximum clarity in SSB or OW mode. It can adjust the receive frequency about + / - 500 Hz, but does not affect the transmit frequency or the frequency display.
  • Page 5 17. SCAN BUTTON: This is used to scan frequencies in each band segment. The OPERATION segment of this manual provides detailed information on using the SCAN control. 18. MEMORY BUTTON: This button is used to program memory channels. Detailed information on how to use this control is provided in the OPERATION section of this manual.
  • Page 6 INTRODUCTION This section explains the basic programming procedures for the RCI-2950/2970 amateur 10 meter mobile transceiver. FREQUENCY SELECTION Frequency selection in the RCI-2950/2970 can be accomplished using three of the following methods: 1. The first method of frequency selection is through the use of the (Shift) key and the arrows.
  • Page 7 3. Using the key and the arrows, select the upper scan limit, then press 4. Press the key again. (“SCAN -“ should appear in the display window.) 5. Using the key and the arrows, select the lower scan limit, then press The upper and lower scan limits have now been programmed.
  • Page 8 OFFSET FREQ. OPERATION The RCI-2950/2970 has an offset or split frequency feature that will permit the radio to be operated in a half-duplex mode This will allow the user to talk on FM repeaters operating in the 10 Meter band. (NOTE The FM repeaters may require a sub-audible (CTCSS) tone be transmitted to gain access to the repeater.
  • Page 9 Technical Analysis of the RCI 2950, RCI 2970, RCI 2990, Saturn Turbo circuitry The first striking element of the RCI is the complex frequency synthesizer. As most of the CB rigs use a + 10 Khz step , the RCI uses a 100 times thinner 100 Hz step. The brain of the RCI is the Microprocessor.
  • Page 10 The noise blanker is very good. It is composed of 6 stages with at least 7 TR and 3 diodes assuming the amplification of HF interference coming from the first QRG changer. The AM is using a classical and reliable technology: a ballast PNP transistor (Q51). In FM, we can find the old good MC14558P (IC16) which handles modulation of the mike before exciting the varicap of the VCO to produce frequency excursions.
  • Page 11 Transistor Voltage Chart Ref # Function Part # 2SC1675L 0.00 0.00 0.00 NB Off NB Off NB Off 1.77 7.67 1.06 NB On NB On NB On 2SC1675L 0.00 0.00 0.00 NB Off NB Off NB Off 0.71 2.09 0.00 NB On NB On NB On...
  • Page 12 0.01 0.02 2.44 SSB TX SSB TX SSB TX 2SC1675 0.71 3.04 0.00 AM / FM RX AM / FM RX AM / FM RX 0.01 0.03 0.00 AM / FM TX AM / FM TX AM / FM TX 0.82 0.03 0.00...
  • Page 13 0.01 0.11 0.00 SSB RX SSB RX SSB RX 0.01 0.01 0.00 SSB TX SSB TX SSB TX 2SC945 0.01 0.02 0.00 AM / FM RX AM / FM RX AM / FM RX 0.01 0.01 0.00 AM / FM TX AM / FM TX AM / FM TX 0.70...
  • Page 14 0.01 0.07 0.07 FM TX FM TX FM TX 2SC1674 0.95 0.24 0.23 AM RX AM RX AM RX 3.41 3.02 7.34 AM TX AM TX AM TX 0.95 0.24 0.23 FM RX FM RX FM RX 1.66 1.19 7.35 FM TX FM TX FM TX...
  • Page 15 0.71 0.02 0.00 AM TX AM TX AM TX 0.01 0.18 0.00 FM RX FM RX FM RX 0.02 0.05 0.00 FM TX FM TX FM TX 0.01 0.01 0.00 SSB RX SSB RX SSB RX 0.01 0.02 0.00 SSB TX SSB TX SSB TX 0.03...
  • Page 16 2SC1675 AM / FM / SSB RX AM / FM / SSB RX AM / FM / SSB RX 0.72 4.36 0.00 AM / FM / SSB TX AM / FM / SSB TX AM / FM / SSB TX 0.72 4.37 0.00...
  • Page 17 AM / FM / SSB TX AM / FM / SSB TX AM / FM / SSB TX 0.01 0.01 0.00 0.50 With MOD 2SC945 AM / FM / SSB RX AM / FM / SSB RX AM / FM / SSB RX 0.24 0.25 0.00...
  • Page 18 7.28 7.96 8.04 FM/SSB TX FM/SSB TX FM/SSB TX 2SC945 AM / FM / SSB RX AM / FM / SSB RX AM / FM / SSB RX 0.63 0.05 0.00 AM / FM / SSB TX AM / FM / SSB TX AM / FM / SSB TX 0.01 8.04...
  • Page 19 2.12 4.57 1.40 SSB TX SSB TX SSB TX 2SA733 AM / FM / SSB RX AM / FM / SSB RX AM / FM / SSB RX 8.04 0.01 0.00 AM / FM / SSB TX AM / FM / SSB TX AM / FM / SSB TX 8.05 0.02...
  • Page 20 0.00 0.00 0.00 SSB RX SSB RX SSB RX 1.28 7.95 0.57 SSB TX SSB TX SSB TX 1.30 8.06 0.59 With MOD With MOD With MOD 2SC1906 0.00 0.00 0.00 AM / FM RX AM / FM RX AM / FM RX 1.41 7.95 0.71...
  • Page 21 0.02 12.18 0.00 AM / FM TX AM / FM TX AM / FM TX 0.73 0.05 0.00 SSB RX SSB RX SSB RX 0.73 0.05 0.00 SSB TX SSB TX SSB TX 0.75 0.07 With MOD With MOD 2SC945 0.63 8.05 0.53...
  • Page 22 1.03 4.32 0.40 FM TX FM TX FM TX 0.01 0.01 0.01 SSB RX SSB RX SSB RX 0.01 0.01 0.01 SSB RX SSB RX SSB RX www.radioaficion.com...
  • Page 23 R247 should be a 4.7k ohm resistor...the factory accidentally put in 47k ohm in some units...this will hurt LSB performance if not corrected..#2-RCI-2950>> R78 is a 2.2k ohm resistor...changing this to a 6.8k 1/4 watt resistor will improve receiver performance in all modes,and help with the RF gain control operation as well #3-RCI-2950>>...
  • Page 24 A 5V dip relay was used and the coil powered from the anode of D107 to allow a parallel combination of 3300uF and 47/2W resistor to be switched into series with the two final output transistors in the AM mode only. This produced an AM swing from 100mW to about 4.5W COMPARED There is a big difference between the RCI 2990/Galaxy Saturn Turbo and the Galaxy Saturn.
  • Page 25 REPAIR TRICKS FRONT END PROTECTION DIODES These diodes go out when the radio is subject to an extremly strong input signal. If the radio doesn't recieve or quits recieving after you unkey, check D21 & D22. These ones are 1N914 or 1N4148. They cost very few. : Need Help..
  • Page 26 Ranger RCI 2950 Main PCB Schematic Diagram...
  • Page 27 Ranger RCI 2950 CPU PCB Schematic Diagram...
  • Page 28 Ranger RCI 2950 Chassis Exploded View Drawing...
  • Page 34 Ranger RCI 2950 LCD P.C. BOARD EPT2950217 Trace Layout RESISTORS...
  • Page 35 Ref# Description MFR. Part No. R710 39K .1 W CHIP ROY013934Z R711 470K .1W, CHIP ROY014744Z R712 680 K .1 W ROY016844Z CAPACITORS Ref# Description MFR. Part No. C701 1uF 16WV M, TANTALUM CTY161056Z C702 .33uF 35WV M, TANTALUM CTY353346Z C703 .33uF 35WV M, TANTALUM CTY353346Z...
  • Page 36 C719 .1uF, 25WV, Z, Y5V, MONO. CK2104AB7V C720 .1uF, 25WV, Z, Y5V, MONO. CK2104AB7V C721 .1uF, 25WV, Z, Y5V, MONO. CK2104AB7V Ref# Description MFR. Part No. IC701 IC HD61602R ENH161602R Misc. Ref# Description MFR. Part No. RESISTOR, 1 M SEM I-FIXED RE10500102 LCD DISPLAY EX03N40438...
  • Page 37 LCD P.C. BOARD EPT2950217 Trace Layout...
  • Page 39 Ranger RCI 2950 CPU PCB EPT295043Z Trace Layout...
  • Page 40 RESISTORS Ref# Description MFR. Part No. R601 270ohm 1/4W (U) TYPE, CARBON RCU142714Z R602 220ohm 1/4W (U) TYPE, CARBON RCU142214Z R603 180ohm 1/4W (U) TYPE, CARBON RCU141814Z R604 82ohm 1/4W (U) TYPE, CARBON RCU148204Z R605 470ohm .1 W CHIP RCY014714Z R606 470ohm .1W CHIP RCY014714Z...
  • Page 41 R625 47K 0.1W CHIP RCY014734Z R626 4.7K 0.1 W CHIP RCY014724Z R627 47K 0.1W CHIP RCY014734Z R628 47K 0.1 W CHIP RCY014734Z R629 47K 0.1W. CHIP RCY014734Z R630 RESISTOR, 1MEG, 0.1 W, CHIP RCY011054Z R631 10ohm .1 W CHIP RCY011034Z R632 47K 0.1 W CHIP RCY014734Z...
  • Page 42 R650 RESISTOR, 47K 0.1W CHIP RCY014734Z R651 RESISTOR, 47K 0.1W CHIP RCY014734Z R652 RESISTOR, 47 K 0.1W CHIP RCY014734Z R653 RESISTOR, 47 K 0.1W CHIP RCY014734Z R654 RESISTOR, 47 K 0.1W CHIP RCY014734Z R655 RESISTOR, 47 K 0.1W CHIP RCY014734Z R656 RESISTOR, 47 K 0.1W CHIP RCY014734Z...
  • Page 43 RA611 RESISTOR ARRAY, 47K 5P RCS0570009 CAPACITORS Ref# Description MFR. Part No. C601 .01uF 50WV K Z5U, MONO. CK1103AB7U C602 .1uF 35WV M, TANTALUM CTY351046Z C603 .33uF 35WV M, TANTALUM CTY353346Z C604 .01uF 50WV KZ5U, MONO. CK1103A87U C605 .01uF 50WV KZ5U, MONO. CK1103AB7U C606 .01uF 50WV K Z5U, MONO.
  • Page 44 IC602 IC TC4069UBF ENTA04069F IC603 IC M5223FP ENMI05223F IC604 IC TC4069UBF ENTA04069F IC605 IC TA78 TZTA00078Z IC606 IC TA78 TZTA00078Z IC612 IC 7805 ENSS07805Z TRANSISTORS Ref# Description MFR. Part No. TR601 TRANSISTOR 2SC945P T2SC00945P TR602 TRANSISTOR 2SC945P T2SC00945P TR603 TRANSISTOR 2SC945P T2SC00945P TR604 TRANSISTOR 2SC945P...
  • Page 45 X601 RESONATOR, 4MHZ, CERAMIC EX14N46510 Switch REF# DESCRIPTION PART# S601 TACT SW EWPS33042X Buzzer REF# DESCRIPTION PART# BUZZER RKM35-4A EX14N46511 Battery REF# DESCRIPTION PART# BATTERY LITHIUM, 3V 170maH EX08N41405 Connectors REF# DESCRIPTION PART# PCB CONNECTOR SOCKET 6P EX07N41266 PCB CONNECTOR SOCKET 4P EX07N41250 PCB CONNECTOR SOCKET 3P EX07N41216...
  • Page 46 SHORT PIN 2P EX07N48151 www.radioaficion.com...
  • Page 47 CPU PCB EPT295043Z Trace Layout...
  • Page 48 Ranger RCI-2950 MIC UP/DW PCB (EPT295080Z)
  • Page 49 Ranger RCI 2950 MIC JACK P.C. BOARD EPT295070Z CERAMIC CAPACITORS Ref# Description MFR. Part No.
  • Page 50 C701 .001uF 50WV Z SL, CERAMIC CC0501027L C702 .001uF 50WV Z SL, CERAMIC CC0501027L C703 .001uF 50WV Z SL, CERAMIC CC0501027L CONNECTORS Ref# Description MFR. Part No. J701 PCB CONNECTOR SOCKET 3P EX07N48244 J702 PCB CONNECTOR SOCKET 2P EX07N48152 J703 PCB CONNECTOR SOCKET 2P EX07N48152 MIC JACK 6P...
  • Page 51 Ranger RCI-2950 VSWR PCB (EPT360040Z) Schematic Diagram Resistors Ref# Description MFR. Part No. R401 100ohm 1/4W (P) TYPE RCP141014Z R402 150 OHM 1/4W (P) TYPE RCP141514Z Capacitors...
  • Page 52 Ref# Description MFR. Part No. C405 .01uF 50WV Z SL, CERAMIC CCO501037L C406 .01uF 50WV Z SL, CERAMIC CC0501037L...
  • Page 53 Ranger RCI-2950 RCI-2950 VSWR P.C. BOARD EPT360040Z Schematic Diagram...
  • Page 54 Ranger RCI-2950 VR PCB RF/Mic Gain / Vol / SQ PCB (EPT295050Z) Capacitors Ref# Description MFR. Part No. C501 .001uF 50WV Z SL, CERAMIC CC0501027L C505 .001uF 50WV Z SL, CERAMIC CC0501027L Potentiometers Ref# Description MFR. Part No. RF/MIC VR 1KA-5KB...
  • Page 55 J501 PCB CONNECTOR SOCKET 2P EX07N41226 J502 PCB CONNECTOR SOCKET 2P EX07N41226 J503 PCB CONNECTOR SOCKET 3P EX07N41216 J504 PCB CONNECTOR SOCKET 3P EX07N41216 J505 PCB CONNECTOR SOCKET 2P EX07N41226...
  • Page 56 Ranger RCI-2950 RCI-2950 VR (B) PCB (EPT295060Z) Capacitors Ref# Description MFR. Part No. C601 .001 OF 50WV Z SL, CERAMIC CCO501027L Potentiometers Ref# Description MFR. Part No. RF/CAL VR 1KB-20KB RV10203456 Connectors Ref# Description MFR. Part No.
  • Page 57 J601 PCB CONN. SOCKET 3P EX07N41216 J602 PCB CONN. SOCKET 3P EX07N41216...
  • Page 58 Ranger RCI 2950 CH/SW P.C. BOARD EPT295090A Ref# Description MFR. Part No. ROTARY SW, GPS-688 EWRT32051S PCB CONN. SOCKET, 3P EX07N41216 www.radioaficion.com...
  • Page 59 Ranger RCI 2950 MODE P.C. BOARD EPT295090Z Schematic Diagram Ref# Description MFR. Part No. ROTARY SW, 6N EWRT32053S PCB CONN. SOCKET, 3P EX07N41216 PCB CONN. SOCKET, 7P EX07N41261 J403 JUMPER WIRE 7x6x7mm WX01070706...
  • Page 61 EPT295031Z Push Switch PCBEPT295031Z Trace Layout Schematic Diagram CARBON FIXED RESISTORS Ref# Description MFR. Part No. 1.5K 1/16W(P) TYPE RCP161524Z Misc. Ref# Description MFR. Part No. TACT SW EWPS33042X IC PIN EX07N48414 LED YELLOW EX01N40081...
  • Page 62 PCB CONN. SOCK. 6P L= 21.8mm EX07N48441...
  • Page 63 Ranger RCI 2950 EPT295031Z Push Switch PCBEPT295031Z Trace Layout www.radioaficion.com...
  • Page 65 RCI 2950 PARTS LISTS Capacitors Main PCB (EPT295013Z) Trimmer Capacitors Ref# Bd Loc Description MFR. Part No. CAPACITOR, 20P, TRIMMER CV050200AZ CAPACITOR, 20P, TRIMMER CV050200AZ CAPACITOR, 30P, TRIMMER CV050300AZ Capacitors Ref# Bd Loc Description MFR. Part No. 5PF 50WV J CH, CERAMIC CC0501004A .01uF 50WV Z SL, CERAMIC CC0501037L...
  • Page 66 .47uF 50WV Z, ELECTROLYTIC CE0504747Z 330PF 50WV K SL, CERAMIC CC0503315L .0022uF 50WV K, MYLAR CM0502225Z 2.2uF 5OWV Z, ELECTROLYTIC CE0502257Z 330PF 50WV K SL, CERAMIC CC0503315L .01uF 50WV Z SL, CERAMIC CC0501037L .047uF 50WV Z SL, CERAMIC CC0504737L 5PF 50WV C SL. CERAMIC CC0500501L .01uF 50WV Z SL, CERAMIC CC0501037L...
  • Page 67 100PF 50WV K SL, CERAMIC CC0501015L 10uF 25WV Z, ELECTROLYTIC CE0251067Z 270PF 50WV K SL, CERAMIC CC0502715L .01uF50WV Z SL, CERAMIC CC0501037L 47uF 10WV Z, ELECTROLYTIC CE0104767Z 47uF 10WV Z, ELECTROLYTIC CE0104767Z .001uF 50WV Z SL, CERAMIC CC0501027L .1uF 50WV Z SL, CERAMIC CC0501047L 10PF 50WV J SL, CERAMIC CC0501004L...
  • Page 68 .01uF 50WV Z SL, CERAMIC CC0501037L 10uF 25WV Z, ELECTROLYTIC CE0251067Z 1000uF 10WV Z, ELECTROLYTIC CE0101087Z .047uF 50WV Z SL, CERAMIC CC0504737L .01uF 50WV Z SL, CERAMIC CC0501037L 5PF 50WV J CH, CERAMIC CC0501004A .1uF 50WV Z SL, CERAMIC CC0501047L 56PF 50WV J CH, CERAMIC CC0503304A 1 PF 50WV C CH, CERAMIC...
  • Page 69 .01 UF50WV Z SL, CERAMIC CC0501037L .047uF 50WV Z SL, CERAMIC CC0504737L 2.2uF 50WV Z, ELECTROLYTIC CE0502257Z 47PF 50WV J SL, CERAMIC CC0504704L .01uF 50WV Z SL, CERAMIC CC0501037L .1uF 50WV Z SL, CERAMIC CC0501047L .1uF 50WV Z SL, CERAMIC CC0501047L .1uF 50WV Z SL, CERAMIC CC0501047L...
  • Page 70 C100 .01uF50WV Z SL, CERAMIC CC0501037L C101 .001uF 50WV Z SL, CERAMIC CC0501027L C102 1uF 16WV NP, ELECTROLYTIC CE0161056N C103 220uF 10WV Z, ELECTROLYTIC CE0102277Z C104 .047uF 50WV Z SL, CERAMIC CC0504737L C105 5PF 50WV J CH, CERAMIC CC0501004A C106 .22uF 16WV M, TANTALUM CT0162246Z C107...
  • Page 71 C121 33PF 50WV J SL, CERAMIC CC0503304L C122 33PF 50WV J SL, CERAMIC CC0503304L C123 .01uF 50WV Z SL, CERAMIC CC0501037L C124 .01uF 50WV Z SL, CERAMIC CC0501037L C125 .001uF 50WV Z SL, CERAMIC CC0501027L C126 .01uF 50WV Z SL, CERAMIC CC0501037L C127 .01uF 50WV Z SL, CERAMIC...
  • Page 72 C142 .001uF 50WV Z SL, CERAMIC CC0501027L C143 47uF 10WV Z, ELECTROLYTIC CE0104767Z C144 1uF 50WV Z, ELECTROLYTIC CE0501057Z C145 .001uF 50WV Z SL, CERAMIC CC0501027L C146 2.2uF 50WV Z, ELECTROLYTIC CE0502257Z C147 10uF 25WV Z, ELECTROLYTIC CE0251067Z C148 .1uF 50WV Z SL, CERAMIC CC0501047L C149 .001uF 50WV Z SL, CERAMIC...
  • Page 73 C163 47PF 50WV J SL, CERAMIC CCO504704L C164 560PF 50WV K SL, CERAMIC CC0505615L C165 390PF 50WV K SL, CERAMIC CC0503915L C166 33PF 50WV J SL, CERAMIC CC0503304L C167 150PF 50WV K SL, CERAMIC CC0501515L C168 10uF 25WV Z, ELECTROLYTIC CE0251067Z C169 33PF 50WV J SL, CERAMIC...
  • Page 74 C184 82PF 50WV J UJ, CERAMIC CC0508204G C186 .001uF 50WV K, MYLAR CM0501025Z C187 .001uF 50WV Z SL, CERAMIC CC0501027L C188 100PF 50VVV K SL, CERAMIC CC0501015L C189 33PF 50WV J SL, CERAMIC CC0503304L C190 22PF 50WV J SL, CERAMIC CC0502204L C191 .001uF 50WV Z SL, CERAMIC...
  • Page 75 C208 .01uF 50WV Z SL, CERAMIC CC0501037L C209 .01uF 50WV Z SL, CERAMIC CC0501037L C212 .001uF 50WV Z SL, CERAMIC CC0501027L C214 .1uF 50WV Z SL, CERAMIC CC0501047L C215 27PF 50WV J CH, CERAMIC CC0502704A C216 22uF 10WV Z, ELECTROLYTIC CE0102267Z C218 .1uF 50WV Z SL, CERAMIC...
  • Page 76 C234 .047uF 50WV M K, MYLAR CM0504735Z C235 .001uF 50WV K, MYLAR CM0501025Z C236 .001uF 50WV Z SL, CERAMIC CC0501027L C237 5PF 50WV C CH, CERAMIC CC0500501A C238 150PF 50WV K RH, CERAMIC CC0501515D C239 56PF 50WV J RH, CERAMIC CC0505604D C240 .1uF 50WV Z SL, CERAMIC...
  • Page 77 C257 .1uF 50WV Z SL, CERAMIC CC0501047L C258 560PF 50WV K UJ, CERAMIC CC0505615G C259 .01uF 50EV Z SL, CERAMIC CC0501037L C260 .01uF 50EV Z SL, CERAMIC CC0501037L C261 560PF 50WV K UJ, CERAMIC CC0505615G C262 560PF 50WV K UJ, CERAMIC CC0505615G C263 10PF 50WV J SL, CERAMIC...
  • Page 78 C278 33PF 50WV J CH, CERAMIC CC0503304A C279 180PF 50WV K UJ, CERAMIC CC0501815G C280 12PF 50WV J CH, CERAMIC CC0501204A C281 .1uF 50WV Z SL, CERAMIC CC0501047L C284 100PF 50WV J CH, CERAMIC CCO501015A C285 1uF 50WV Z, ELECTROLYTIC CE0501057Z C286 .01uF 50WV Z SL, CERAMIC...
  • Page 79 C301 100uF 10WV Z, ELECTROLYTIC CE0101077Z C302 .001uF 50WV Z SL, CERAMIC CC0501027L C303 .047uF 50WV Z SL, CERAMIC CC0504737L C304 2200uF 16WV Z, ELECTROLYTIC CE0162287Z C305 .01uF 50WV Z SL, CERAMIC CC0501037L C306 .001uF 50WV Z SL, CERAMIC CC0501027L C307 .01uF 50WV Z SL, CERAMIC CC0501037L...
  • Page 80 C324 .1UF 50WV Z SL. CERAMIC CC0501047L C325 .01uF 50WV Z SL. CERAMIC CC0501037L C326 .1UF 50WV Z SL, CERAMIC CC0501047L C327 .01uF 50WV Z SL. CERAMIC CC0501037L C328 .22uF 50WV, CHIP CH0502246Z C329 .01uF 50WV Z SL, CERAMIC CC0501037L C330 .001uF 50WV Z SL, CERAMIC CC0501027L...
  • Page 81 C348 3PF 50WV C CH, CERAMIC CC050030 IA C349 .01uF 50WV Z SL, CERAMIC CC0501037L www.radioaficion.com...
  • Page 82 RCI 2950 PARTS LISTS Coils, Transformers, Crystals, Filters Main PCB (EPT295013Z) Filters Ref# Bd Loc Description MFR. Part No. FILTER, CFW455HT, CERAMIC EFCFW455HT FILTER, SEF 10.7 MX, CERAMIC EFCFE107MX FILTER, 10.695 MHZ, CRYSTAL EFX8106952 Crystals Ref# Bd Loc Description MFR. Part No. 10.240 MHZ, CRYSTAL EYCAB10240 10.240 MHZ, CRYSTAL...
  • Page 83 IFT 7MC-7174Y ECIFT12003 M199CNFP1499N ECIFT12253 IFT 199CN-P1549N ECIFT12290 IFT 199CN-P1549N ECIFT12290 IFT M199CC-P1501A ECIFT12255 IFT 199CC-Pl 502N ECIFT12256 IFT 199CC-P1502N ECIFT12256 IFT 199CC-P1498N ECIFT12252 IFT M199CC-P1503A ECIFT12257 IFT 292CN-Pl 121Z ECIFT12263 COIL, BEAD F PH= 12.5MM ECBAD18550 COIL, BEAD F PH= 12.5MM ECBAD18550 IFT M199CC-PI504N ECIFT12258...
  • Page 84 IFT 113CN-63442 ECIFT12016 COIL, CHOKE 22 UH (P TYPE) ECCHK16070 COIL, CHOKE .82 UH ECCHK16082 COIL, RF .23UH ECRFZ10001 COIL, BEAD D SU-B-172D ECBAD18504 COIL, BEAD D SU-B-172D ECBAD18504 COIL, RF .23UH ECRFZ10091 COIL, BEAD F SU-B-172E ECBAD18506 COIL, BEAD D SU-B-172D ECBAD18504 COIL, TOROIDAL SUTR-398 ECRFZ10048...
  • Page 85 COIL, CHOKE 470 UH (P TYPE) ECCHK16096 COIL, BEAD F SU-B-172E ECBAD18506 COIL, BEAD F SU-B-172E ECBAD18506 COIL, BEAD F SU-B-172E ECBAD18506 COIL, BEAD E PH= 10MM ECBAD18526 COIL, CHOKE 470 UH (P TYPE) ECCHK16096 COIL, BEAD F SU-B-172E ECBAD18506 L131 COIL, SPRING .8x6x8.5t ECSPG18075...
  • Page 86 RCI 2950 PARTS LISTS Resistors Main PCB (EPT295013Z) Variable Resistors Ref# Bd Loc Description MFR. Part No. 10K 3P, SEMI FIXED RE10300078 10K 3P, SEMI FIXED RE10300078 500K 3P, SEMI FIXED RE50400080 500K 3P, SEMI FIXED RE50400080 10K 3P, SEMI FIXED RE10300078 100K 3P, SEMI FIXED RE10400079...
  • Page 87 680ohm 1/4W (U) TYPE RCU146814Z 220ohm 1/4W (U) TYPE RCU142214Z 330ohm 1/4W (U) TYPE RCU143314Z 47K 1/4W (U) TYPE RCU144734Z 2.2 K 1/4W (U) TYPE RCU142224Z 330ohm 1/4W (U) TYPE RCU143314Z 56ohm 1/4W (U) TYPE RCU145604Z 100K 1/4W (U) TYPE RCU141044Z 10K 1/4W (U) TYPE RCU141034Z...
  • Page 88 1.5K 1/4W (U) TYPE RCU141524Z 10K 1/4W (U) TYPE RCM141034A 1.8 K 1/4W (U) TYPE RCU141824Z 1.8 K 1/4W (U) TYPE RCU141824Z 47K 1/4W (U) TYPE RCM144734A 100ohm 1/4W (U) TYPE RCM141014A 100ohm 1/4W (U) TYPE RCU141014Z 100ohm 1/4W (U) TYPE RCU141014Z 100ohm 1/4W (U) TYPE RCM141014A...
  • Page 89 47K 1/4W (U) TYPE RCM 144734A 220K 1/4W (U) TYPE RCU142244Z 680K 1/4W (U) TYPE RCU146844Z 100K 1/4W (U) TYPE RCM 141044A 100 K1/4W (U) TYPE RCM141044B 220K 1/4W (U) TYPE RCM142244A 1 K, 1/4W (U) TYPE RCU141024Z 1 K, 1/4W (U) TYPE RCU141024Z 100K 1/4W (U) TYPE RCM141044A...
  • Page 90 1K, 1/4W (U) TYPE RCU474157Z 1K 1/4W (U) TYPE RCM141024A 1K, 1/4W (U) TYPE RCU141024Z 10K 1/4W (U) TYPE RCM141034A 47K 1/4W (U) TYPE RCU144734Z 6.8K 1/4W (U) TYPE RCM146824A 1K, 1/4W (U) TYPE RCU141024Z 100K 1/4W (P) TYPE RCP141044Z 680ohm 1/4W (U) TYPE RCU146814Z 1.5K 1/4W (U) TYPE...
  • Page 91 10K 1/4W (U) TYPE RCM141034A 1K 1/4W (U) TYPE RCU141024Z 10K 1/4W (U) TYPE RCU141034Z 1.5K 1/4W (U) TYPE RCU141524Z 680ohm 1/4W (U) TYPE RCM146814B 1.2K, 1/4W (U) TYPE RCU141224Z 8.2K 1/4W (U) TYPE RCU148224Z 22K 1/4W (U) TYPE RCM142234B 1.8K 1/4W (U) TYPE RCU141824Z 5.6K 1/4W (U) TYPE...
  • Page 92 R110 1.5M 1/4W (U) TYPE RCU141554Z R111 68K 1/4W (U) TYPE RCU146834Z R712 22K 1/4W (U) TYPE RCM142234A R113 2.7K 1/4W (U) TYPE RCU142724Z R114 680K 1/4W (U) TYPE RCM146844A R115 220K 1/4W (U) TYPE RCU142244Z R116 47K 1/4W (U) TYPE RCU144734Z R117 1K 1/4W (U) TYPE...
  • Page 93 R131 10K 1/4W (U) TYPE RCU141034Z R132 100ohm 1/4W (U) TYPE RCU141014Z R133 10K 1/4W (U) TYPE RCU141034Z R134 10K 1/4W (U) TYPE RCU141034Z R135 220C21/4W (U) TYPE RCU142214Z R136 56ohm 1/4W (U) TYPE RCU145604Z R137 560ohm 1/4W (U) TYPE RCU145614Z R138 150ohm 1/4W (U) TYPE...
  • Page 94 R153 10K 1/4W (U) TYPE RCU141034Z R154 3.3K 1/4W (U) TYPE RCU143324Z R155 220ohm 1/4W (U) TYPE RCM142214A R156 100ohm 1/4W (U) TYPE RCU141014Z R757 1K 1/4W (P) TYPE RCP141024Z R159 10K 1/4W (U) TYPE RCU141034Z R160 330K 1/4W (U) TYPE RCU143344Z R161 220ohm 1/4W (U) TYPE...
  • Page 95 R176 2.7K 1/4W (U) TYPE RCU142724Z R177 10K 1/4W (U) TYPE RCU141034Z R178 3.3K 1/4W (U) TYPE RCU143324Z R179 1.5M 1/4W (U) TYPE RCU141554Z R180 10K 1/4W (P) TYPE RCP252034Z R181 10K 1/4W (U) TYPE RCU141034Z R182 3.3K 1/4W (U) TYPE RCU143324Z R183 3.3K 1/4W (U) TYPE...
  • Page 96 R198 1.8K 1/4W (U) TYPE RCU141824Z R199 47K 1/4W (U) TYPE RCU144734Z R200 22K 1/4W (U) TYPE RCU142234Z R201 10K 1/4W (U) TYPE RCU141034Z R202 56ohm 1/4W (U)TYPE RCM145604A R203 10K 1/4W (U) TYPE RCU141034Z R204 560ohm 1/4W (U) TYPE RCU145614Z R205 2.7K 1/4W (U) TYPE...
  • Page 97 R219 22K 1/4W (U) TYPE RCU142234Z R220 1K 1/4W (U) TYPE RCU141024Z R221 10K 1/4W (U) TYPE RCU141034Z R222 4.7K 1/4W (U) TYPE RCM144724B R223 6.8K 1/4W (U) TYPE RCM146824A R224 56ohm 1/4W (U) TYPE RCU145604Z R225 1K 1/4W (U) TYPE RCM141024A R226 10K 1/4W (U) TYPE...
  • Page 98 R240 10K 1/4W (U) TYPE RCM141034A R241 1.8K 1/4W (U) TYPE RCU141824Z R242 100ohm 1/4W (U) TYPE RCM141014A R243 47K 1/4W (U) TYPE RCU144734Z R244 22K 1/4W (U) TYPE RCU142234Z R245 47K 1/4W (U) TYPE RCU144734Z R247 4.7K 1/4W (U) TYPE RCU144724Z R248 1K 1/4W (U) TYPE...
  • Page 99 R264 47ohm 1/4W (U) TYPE RCU144704Z R265 330ohm 1/4W (U) TYPE RCU143314Z R266 1.5K 1/4W (U) TYPE RCU141524Z R268 1 K 1/4W (U) TYPE RCU141024Z R269 100K 1/4W (U) TYPE RCU141044Z R270 100K 1/4W (U) TYPE RCU141044Z R272 100K 1/4W (U) TYPE RCU141044Z R273 100ohm 1/4W (U) TYPE...
  • Page 100 R289 470ohm 1/4W (U) TYPE RCU144714Z R290 10K 1/4W (U) TYPE RCU141034Z R291 10K 1/4W (U) TYPE RCU141034Z R292 4.7K 1/4W (U) TYPE RCM144724B R293 10K 1/4W (U) TYPE RCU141034Z R294 4.7K 1/4W (U) TYPE RCU144724Z R295 10K 1/4W (U) TYPE RCU141034Z R296 10K 1/4W (U) TYPE...
  • Page 101 R310 270K 1/4W (U) TYPE RCU142274Z R311 1 K 1/4W (U) TYPE RCM141024 R312 1 K, 1/4W (U) TYPE RCU141024Z R313 1 K, 1/4W (U) TYPE RCU141024Z R314 10K 1/4W (U) TYPE RCU141034Z R315 22K 1/4W (U) TYPE RCU142234Z R317 1K, 1/4W (U)TYPE RCU141024Z R318...
  • Page 102 R336 10K 1/4W (U) TYPE RCM141034A www.radioaficion.com...
  • Page 103 RCI 2950 PARTS LISTS IC's, Transistors Main PCB (EPT295013Z) Integrated Circuits Ref# Bd Loc Description MFR. Part No. I.C. NJM324D ENJR00324D I.C. UPC1028H ENNE01028H I.C. AN612 ENMA00612Z I.C. NJM7805 ENJR07805Z I.C. TC5081AP ENTA05081A I.C. NJM7808A ENJR07808A I.C. TC5081AP ENTA05081A I.C. TA731 0P ENTA07310P I.C.
  • Page 104 IC19 I.C. TA7222AP ENTA07222A IC21 I.C. TC4069UBP ENTA04069U Transistors Ref# Bd Loc Description MFR. Part No. 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC945P TRSC00945P 2SA733P T2SA00733P 2SC945P TRSC00945P 2SC1674K T2SC01674K 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SA733P T2SA00733P 2SC945P TRS000945P 2SC945P...
  • Page 105 2SC945P TRSC00945P 2SC1674K T2SC01674K J310 EZZJ00310Z 2SC1674K T2SC01674K 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SC1906 T2SC01906Z 2SC945P TRSC00945P 2SA733P T2SA00733P 2SC945P TRSC00945P 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SC945P TRSC00945P 2SA733P T2SA00733P 2SC945P TRSC00945P 2SC945P TRSCO0945P 2SC945P TRSC00945P 2SA733P T2SA00733P 2SC945P TRSC00945P 2SA9340 T2SA009340...
  • Page 106 2SA9340 T2SA009340 2SC945P TRSC00945P 2SA9340 T2SA009340 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC1675K T2SC01675K 2SC1675K T2SC01675K 2SA733P T2SA00733P 2SC2312 T2SC02312C 2SC2312 T2SC02312C 2SC2166C T2SC02166C 2SC2314F T2SC02314F 2SC1906 T2SC01906Z 2SB754Y T2SB00754Y 2SA473/0 T2SA004730 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC945P TRSC00945P 2SC945P TRSC00945P www.radioaficion.com...
  • Page 107 RCI 2950 PARTS LISTS Diodes Main PCB (EPT295013Z) Diodes Ref# Bd Loc Description MFR. Part No. DIODE 1N60P ED1N00060P DIODE 1N60P ED1N00060P DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 E01N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148...
  • Page 108 DIODE MC301 EDMC00301Z DIODE FC54M EDECO0054M DIODE MC301 EOMC00301Z DIODE 1N4148 E01N04148Z DIODE 1N4148 E01N04148Z DIODE FC54M EDECO0054M DIODE FC54M EDECO0054M DIODE MC301 EDMC00301Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z...
  • Page 109 DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE KB362 EDKB00362Z DIODE FC54M EDECO0054M DIODE 1N4148 ED1N04148Z DIODE 1N4148 E01N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE KB262 EDKB00262Z DIODE 1N4148 ED1N04148Z...
  • Page 110 DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE SVC251 EDSV00251Z DIODE SVC251 EDSV00251Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 E01N04148Z DIODE 1N4148 ED1N04148Z DIODE, .5W 2.4V, ZENER EDZD05249Z...
  • Page 111 DIODE 1N4148 ED1N04148Z DIODE 1N60P EDlNO0060P DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE, .5W 5.6V. ZENER EDZD05569Z DIODE FC54M EDECO0054M DIODE 1N4148 ED1N04148Z DIODE 1N4148 ED1N04148Z DIODE MV1Y EDMV00001Y DIODE MV1Y EDMV00001Y DIODE MV1Y EDMV00001Y DIODE 1N4148 EDIN04148Z...
  • Page 112 D101 DIODE 1N4148 ED1N04148Z D102 DIODE 1N4148 ED1N04148Z D103 DIODE 1N4148 ED1N04148Z D104 DIODE 1N4003 ED1N04003Z D105 DIODE 1N4003 ED1N04003Z D106 DIODE 1N4148 ED1N04148Z D107 DIODE 1N4148 ED1N04148Z D108 DIODE 1N4148 ED1N04148Z D109 DIODE 1N4148 E01N04148Z D110 DIODE 1N4148 E01N04148Z D111 DIODE FC54M EDECO0054M...
  • Page 113 RCI 2950 PARTS LISTS Wire, Jumpers, Connectors Connectors Ref# Bd Loc Description MFR. Part No. J101 PCB CONN. SOCKET 2P L= 17.8 EX07N48185 J104 PCB CONNECTOR SOCKET 3P EX07N41216 J105 PCB CONNECTOR SOCKET 2P EX07N41226 J107 PCB CONNECTOR SOCKET 2P EX07N41226 J108 PCB CONNECTOR SOCKET 2P...
  • Page 114 J502 EARPHONE JACK EXO6N41045 J503 EARPHONE JACK EX06N41045 Jumper Wires Ref# Bd Loc Description MFR. Part No. JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x13x7mm WX01070713 JUMPER WIRE 7x13x7mm WX01070713 JUMPER WIRE 7x10x7mm WX01070710 JUMPERWIRE 7x10x7mm WX01070710 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x10x7mm...
  • Page 115 JUMPER WIRE 7x13x7mm WX01070713 JUMPER WIRE 7x4x7mm WX01070704 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x9x7mm WX01070709 JUMPER WIRE 7x4x7mm...
  • Page 116 JUMPER WIRE 7x27x7mm WX01070727 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x9x7mm WX01070709 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x13x7mm WX01070713 JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x10x7mm...
  • Page 117 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x4x7mm WX01070704 JUMPER WIRE 7x8x7mm WX01070708 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x14x7mm WX01070714 JUMPER WIRE 7x6x7mm WX01070706 JUMPER WIRE 7x10x7mm WX01070710 JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x4x7mm WX01070704 JUMPER WIRE 7x5x7mm...
  • Page 118 JUMPER WIRE 7x13x7mm WX01070713 JUMPER WIRE 7x15x7mm WX01070715 JUMPER WIRE 7x7x7mm WX01070707 JUMPER WIRE 7x14x7mm WX01070714 JUMPER WIRE 7x5x7mm WX01070705 J114 JUMPER WIRE 7x3x7mm WX01070703 J322 JUMPER WIRE 7x5x7mm WX01070705 JUMPER WIRE 7x50x7mm WX01070750...
  • Page 119 RCI 2950 PARTS LISTS Chassis, Mechanical & Misc. RCI-2950 CHASSIS PARTS Ref# Description MFR. Part No. SPEAKER, 3W 8 OHM, 31/2" ES300835SQ FUSE, 7A, 16V EX02N40210 DC CORD W/FUSE SOCKET WA0012185A DC SOCKET, 3P EX06N40007 ANT JACK EX06 N41019 MICROPHONEASSY EX04N40620 WIRE CONN.
  • Page 120 J502 WIRE CONN. HOUSING, 3-3P EX07N48389 J503 WIRE CONN. HOUSING, 3-3P EX07N48389 J504 WIRE CONN. HOUSING, 3-3P EX07N48389 J508 WIRE CONN. HOUSING, 2-2P EX07N48391 J602 WIRE CONN. HOUSING, 3-3P EX07N48389 J601 WIRE CONN. HOUSING, 3-3P EX07N48389 J701 WIRE CONN. HOUSING, 2-3-2-3P EX07N48397 J702 WIRE CONN.
  • Page 121 KNOB, BLACK PT2950051A KNOB, BLACK PT2950060A INNER KNOB, BLACK PT2950071A OUTER KNOB, BLACK PT2950080A LCD WINDOW PT2950090A PVC BAG SHIELD PLATE A PT1200020A FRONT PANEL, BLACK PT2950010B FRONT PANEL, BLACK PT2950010C FRONT PANEL, BLACK PT2950010D FRONT CHASSIS MT2950010P SPACE KING MT2950020E D SPRING A #6600 MT3600080T...
  • Page 122 PC.B BRACKET MT3600010S SHIELD PLATE MT2710060X TOP HOUSING MT2950031B RUBBER KEY QT2950010A MIC PLATE BT2100020A MIC PLATE BT2100020D MIC PLATE STOSSBO10B SHIELD CLOTH 10x88x.3t LZZZ60001Z SHIELD CLOTH 90x9Ox.18t LZZZ60056Z QC LABEL 177761009Z SER NO. LABEL LZZZ61155Z LCD SPONGE RUBBER 108x25x1T XZZ290205Z CLAMP GZZZ50000Z...
  • Page 123 SOLD. PLATE XZZZ90002Z LCD PCB SHIELD PLATE 35x8x2t XZZZ90187Z RCI MIC PLATE BT6300041A LAMP REFRACTOR LABEL 28x11 LZZZ61278Z TOP REFRACTOR LABEL 25x8 LZZZ61277Z LCD REFRACTOR LABEL 100x11 LZZZ61276Z POLYLON (TOP) UPT360001A POLYLON (BOTTOM) UPT360001B B754Y SCREW, M2.Ox0.4px10 FAN HEAD JS052010MN TR46 SCREW, M2.Ox0.4px12 PAN HEAD JS052012MN...
  • Page 124 SPEAKER (4) NUT WIWASHER JN263035ZS 2SC2312 (3) NUT JN242012ZS INSULATING RING XZZZ90072Z MOUNTING SCREW M5.Ox0.8x11 BLACK XZZZ90007Z MICROPHONE STOPPER XZZZ90008Z SCREW 5x10-1 STEEL JS015010WH SCREW 3.5x8-2 JS013508TH OUTSIDE TOOTH WASHER 5.5x10x0.3 JW315510CN INSIDE TOOTH WASHER 4x8x0.3 JW324008CN FIBER WASHER 4.9x15x1T XZZZ90188Z www.radioaficion.com...
  • Page 125 MODIFY YOUR RCI FOR 26 Mhz -32 Mhz OPERATION The RCI was designed to be a wide range tranceiver. It is really. With a nice little modification you can expand this rig from 26 Mhz to 32 Mhz. All you have to do is to locate a black jumper onto the LCD electric board. This jumper is called S601. Just move it to the other position.
  • Page 126 IF YOU FILL BOTH PINS J1 AND J2 ON THE NEW VERSION OF THE RANGER 2950 YOU WILL GET 26.000-32.000 JUST LIKE THE OLD VERSION.THE SAME FOR THE 2970. TRY IT IF YOU HAVEN'T YET.
  • Page 127 EXPAND YOUR RCI TO 25 MHZ AND 33 MHZ There is a trick to expand your RCI over the factory programmed limits. Yes, I agree that it's not a very clean mod but it works great. So what _ This trick is to change the X2 crystal ( Quartz ) that is a 10,240 Mhz value one. You can experiment quartz from 9 Mhz to 12 Mhz ( It'll depend on what you have ).
  • Page 128 HAM TO CB MODE MODIFICATION Very often, the RCI is sold as a HAM rig. But it was designed and developped on CB principals. All the experts will tell you that the RCI contains the same components as all major CB TXs. So what ? Is it a CB or a HAM tranceiver ? The short reply is : BOTH.
  • Page 129 POWER MODS INCREASE YOUR POWER ! ! ! ! ! You can boost your output power in both AM/FM and USB which are driven separately. Have a look at this drawing. You can go further by replacing the two final transistors. Two 2SC2312 by 2 MRF477. Be carefull, these two do not have the same wiring.
  • Page 130 www.radioaficion.com...
  • Page 131 HEAVY SWINGER MOD HEAVY SWINGER MOD (MODULATION) Locate Q51 which is a 2SB754. This part should be subbed out with a 2SB688 but doesn't have to be. The 2SB688 is a heavier duty and higher wattage transistor. To do this mod, you will need a 1N914 diode and a 50 ohms resistor. Hook up as drawing shows.
  • Page 132 TUNE-UP 2950 TUNE UP/MOD To increase heat dissapation and durability and a decrease of transmit voltage drop change Q-51 to an ECG37 or equiv. To prevent overheating and increase audio Quality & low pwr swing change Q53 to a 2SA473 To improve low power swing on AM locate R178 and change to a 3k ohm.The resesitor you just removed save for the next step.(4.7k) Locate R194 (10k ohm) replace with the 4.7k resistor from previous step.
  • Page 133 UPGRADING AM DETECTION Change D34 & D35 that are 1N60's by ECG583 or SK9975. This mod will enhance the radio performance. Some version already have 1N60 diodes for d35-d34. The problem that is manifesting itself as AM distorion ( and TX bleed) is caused by the lack of bandwith control due to the fact of the cheap Xtal filter they use...
  • Page 134 INCREASE AUDIO My audio got slightly softer, you have to pull out tr53 , it is not marked on the board, it is between vr 12 and vr 14. also r 291 take out! This is the modulatuion limiter...
  • Page 135 AUTO SQUELCH ADD AN AUTOMATIC SQUELCH TO YOUR RIG All you need is a VR of 100 K and a simple switch button. Follow the diagram's instructions to build this option. www.radioaficion.com...
  • Page 136 BATTERY PROBLEMS Careful: Latest versions of RCI do not have a lithium battery anymore. If you run your 2950 as a base on a power supply the internal 3v battery will drain much faster or if you use it mobile and let the ignition switch turn the radio off and on then the battery will be dead in a very short time.
  • Page 137 www.radioaficion.com...
  • Page 138 CLARIFIER MOD There is a mod that you did not include that I personally could not do without. The mod is to unlock the clarifier. There is also another mod to prevent distortion from front end overload from very strong signals. Here is how you do those mods: When you modify the clarifier it will not track on the display (it will give you about 1.5 Khz shift either way) but you will find it useful in CB mode because the frequency cannot be adjusted.
  • Page 139 INSTALL MY RCI ON THE CAR'S LIGHTER ADAPTATION OF STEREO HEADPHONES...
  • Page 140 www.radioaficion.com...
  • Page 141 LCD & LEDS THE BACK LITE DISPLAY FOR THE 2950 In this mod. You will remove the filament bulbs and replace them with a low voltage light emitting diode . Advantages of this mod. Are full controlthrough all four setting of your dim control. This makes the voltage reg.
  • Page 142 This was done by soldering a 1 mega ohm resistor to the middle contact of the contrast potentiometer and the display board ground. In order to make this modification you need too do the following proceeder. Remove the top and bottom cover from your RCI 2950. Carefully remove all the knobs from the front panel, loosen the four counter sunk phillips screws holding the face plate.
  • Page 143 RCI-2950 MIKE Wiring Standart wiring: TURNER 4-WIRE TURNER 4-WIRE 1. Ground Shield 1. Ground Shield 1. Ground Shield 2. Audio Yellow 2. Audio White 2. Audio White 3. Transmit Red 3. Transmit Black 3. Transmit Black 4. Receive Black 4. Receive N/C 4.
  • Page 144 PROTECT YOUR MOBILE RIG FROM POLARITY INVERSIONS Yes you can ! This mod will let you reverse polarity on your set with no risks at all. Even more, it'll work as if nothing had happened. I'm sure some of you are going to bet with their friends. I did _ All you need ( is love ) is 4 diodes of the series 1N400x ( 1N4003 for instance).
  • Page 145 MOD FOR FASTER SCAN SPEED ... First take the radio's top and bottom covers off then remove all the dials off the front face plate then take out the screws that hold the front face plate. Now you're looking at the lcd and button printed circuit board, remove the lcd printed circuit board .Now you should see the main proseser board.
  • Page 146 EXTERNAL S-METER The RCI does not have any external plug to use a S-Meter. With this mod, you can add one. If you compare most of the base rig which have this option, you can see that everything is around VR1 & VR2 squelch components. Ths signal you need to catch for the external meter is present on the cathode of the diode D14.
  • Page 147 TALK BACK MODIFICATION · Well here go's The talk back is done by cliping one end of D-78. or you can wire a spdt switch to switch on and off! · A common way to obtain talk-back on the 2950 is to lift one leg of the diode marked D-78. Many times, a switch is installed to create a switchable talk-back.
  • Page 148 TONE MODIFICATION You need to listen with confort ? Add a tone capability to your RCI. Very simple. www.radioaficion.com...
  • Page 149 RCI 2950 TX Alignment TX Alignment Locations SETTINGS CONNECTION ADJUST FOR ADJUST Remove TP1, TP2, TP3 Jumper PCB. DRIVER BIAS: VR11 Connect DC Ammeter between TP9 and In TX adjust for 50-75mA. Set mode to LSB TP8. Mic Gain to minimum FINAL BIAS: Connect DC Ammeter between TP9 and In TX check for 160-180mA.
  • Page 150 Ranger RCI-2950 Alignment Locations TX...
  • Page 151 RCI 2950 RX Alignment RX Alignment Locations SETTINGS CONNECTION ADJUST ADJUST FOR AM/FM RF & IF SENSITIVITY: Connect an FM signal generator to the Adjust for best SINAD reading and least distorted Put mode selector on FM, RF gain antenna connector. Set modulation for waveform on scope.
  • Page 152 Ranger RCI-2950 Alignment Locations RX...
  • Page 153 Ranger RCI-2950 PLL Alignment PLL Alignment Locations SETTINGS CONNECTION ADJUST FOR ADJUST Remove TP1, TP2, TP3 Jumper PCB. Disconnect shorting board from test points TP1, VCO & OSC: TP2 and TP3 Frequency: 28.0000 MHz MIC Gain: Fully counter-clockwise RF Power. Fully clockwise...
  • Page 154 Ranger RCI-2950 Alignment Locations PLL...

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