Related Manuals for Ranger TEXAS RANGER TR-127GK/DX
Summary of Contents for Ranger TEXAS RANGER TR-127GK/DX
- Page 1 All manuals and user guides at all-guides.com REV. A Dec. 2004 Communications, Inc. TR-127GK/DX 40 CHANNEL AM CB MOBILE RADIO Service Manual...
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Page 2: Table Of Contents
All manuals and user guides at all-guides.com TABLE OF TR-127GK/DX CONTENTS PAGE CHAPTER 1 SPECIFICATIONS General ..............Transmitter . -
Page 3: Chapter 1 Specifications
All manuals and user guides at all-guides.com CHAPTER 1 TR-127GK/DX SPECIFICATIONS 1.0 GENERAL Model TR-127GK, TR-127DX Channels Frequency Range 26.965 – 27.405 MHz Emission Modes Frequency Control Phase Lock Loop (PLL) synthesizer Frequency Stability 0.001 % Operating Temperature Range -30°C to +50°C Antenna Impedance 50 Ohms Input Voltage... -
Page 4: Chapter 2 Operation
All manuals and user guides at all-guides.com CHAPTER 2 TR-127GK/DX OPERATION 10 11 15 16 S/RF TONE CH19 TX/RX TR - 127 NORMAL RF GAIN SWR CAL CLARIFY MIC GAIN Figure 2-1 Front Panel 2.0 INTRODUCTION This section explains the basic operating procedures for the TR-127GK or TR-127DX mobile CB radio. 2.1 CONTROLS AND CONNECTIONS 2.1.1 FRONT PANEL Refer to the above Figure 2-1 for the location of the following controls. - Page 5 All manuals and user guides at all-guides.com background noise is just eliminated. Further clockwise rotation will increase the threshold level which a signal must overcome in order to be heard. Only strong signals will be heard at a maximum clockwise setting. 5.
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Page 6: Rear Panel
All manuals and user guides at all-guides.com REAR PANEL Figure 2-2 represents the location of the following connections: This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device EXT.SP. PA.SP. does not cause harmful interference. +POWER−... -
Page 7: Frequency Chart
All manuals and user guides at all-guides.com 2.1.3 FREQUENCY CHART CHANNEL CHANNEL FREQUENCY CHANNEL CHANNEL FREQUENCY (MHz) (MHz) 26.965 27.215 26.975 27.225 26.985 27.255 27.005 27.235 27.015 27.245 27.025 27.265 27.035 27.275 27.055 27.285 27.065 27.295 27.075 27.305 27.085 27.315 27.105 27.325 27.115... -
Page 8: Microphone
All manuals and user guides at all-guides.com 2.2 MICROPHONE The push-to-talk switch on the microphone controls the receiver and transmitter. Press the switch and the transmitter is activated, release switch to receive. When transmitting, hold the microphone two inches from your mouth and speak clearly in a normal voice. This transceiver comes complete with a low impedance dynamic microphone. -
Page 9: Alternate Microphones And Installation
All manuals and user guides at all-guides.com 2.4 ALTERNATE MICROPHONES AND INSTALLATION For best results, the user should select a low impedance dynamic type microphone or a transistorized microphone. Transistorized type microphones have a low output impedance characteristic. The microphones must be provided with a four-lead cable. The audio conductor and its shielded lead comprise two of the leads. -
Page 10: Chapter 3 Circuit Description
All manuals and user guides at all-guides.com CHAPTER 3 CIRCUIT TR-127GK/DX DESCRIPTION 3.0 INTRODUCTION This section explains the technical theory of operation for the TR-127GK or TR-127DX mobile CB radio. 3.1 PLL CIRCUIT The Phase Lock Loop (PLL) circuit is responsible for developing the receiver’s first local oscillator signal and the transmitter’s exciter signal. - Page 11 All manuals and user guides at all-guides.com - 10 -...
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Page 12: Chapter 4 Alignment
All manuals and user guides at all-guides.com CHAPTER 4 TR-127GK/DX ALIGNMENT 4.0 REQUIRED TEST EQUIPMENT DC Power Supply (13.8VDC, 10A) Frequency Counter (100 MHz) RF Wattmeter (10W) RF Signal Generator (100 MHz) Multi-meter Automatic Distortion Meter Automatic Modulation Meter Oscilloscope (50 MHz) Audio Signal Generator Sinad Meter 4.1 ALIGNMENT PROCEDURES... - Page 13 All manuals and user guides at all-guides.com 4.1.2 TRANSMITTER ALIGNMENT ADJUST ITEM U.U.T. SETTING MEASUREMENT POINT TX Power Set radio to CH 19 AM TX mode. L26, L27, MAX > 4W Connect RF Power Meter to antenna jack. Balance Power Between CH.
- Page 14 All manuals and user guides at all-guides.com Figure 4-1 Transmitter test setup Figure 4-2 Receiver test setup - 13 -...
- Page 15 All manuals and user guides at all-guides.com TR-127GK/DX MAIN PCB ADJUSTMENT LOCATION - 14 -...
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Page 16: Chapter 5 Maintenance
All manuals and user guides at all-guides.com CHAPTER 5 TR-127GK/DX MAINTENANCE 5.0 PRECAUTIONS The inherent quality of the solid-state components used in this transceiver will provide many years of continuous use. Taking the following precautions will prevent damage to the transceiver. (i) Never key the transmitter unless an antenna or suitable dummy load is connected to the antenna receptacle. -
Page 17: Chapter 6 Diagrams & Parts List
All manuals and user guides at all-guides.com CHAPTER 6 DIAGRAMS & TR-127GK/DX PARTS LIST 6.0 GENERAL Information on most electrical and mechanical parts is included in the parts list. The reference designators are in alphanumeric order. - 16 -... - Page 18 All manuals and user guides at all-guides.com TR-127GK/DX ROTARY SWITCH PCB (EPT092920Z) (SMD-COPPER SIDE) ( COMPONENT SIDE ) - 17 -...
- Page 19 All manuals and user guides at all-guides.com PART LIST: TR-127GK/DX ROTARY SW. P.C.B REFERENCE RANGER PART ITEM DESCRIPTION NUMBER NUMBER EPT012921Z ROTARY SW PCB CHIP/F/R 0.0 Ω 0.1W R305 RCY010004Z CHIP/F/R 330 Ω 0.1W R306 RCY013314Z R307,R308,R309,R310, CHIP/F/R 680 Ω 0.1W...
- Page 20 All manuals and user guides at all-guides.com TR-127GK/DX DISPLAY PCB (EPT092930Z) ( COMPONENT SIDE ) ( COMPONENT SIDE ) ( COPPER SIDE ) - 19 -...
- Page 21 All manuals and user guides at all-guides.com PART LIST: TR-127GK/DX DISPLAY P.C.B REFERENCE RANGER PART ITEM DESCRIPTION NUMBER NUMBER EPT012930Z DISPLAY PCB D201 EX01Y40004 LED 3mm RED/GREEN LED DISPLAY EX03N40016 LED DISPLAY GREEN D202 EX01N40140 LED 3mm RED - 20 -...
- Page 22 All manuals and user guides at all-guides.com TR-127GK/DX MAIN PCB (EPT012910A) ( COMPONENTS SIDE ) - 21 -...
- Page 23 All manuals and user guides at all-guides.com TR-127GK/DX MAIN PCB (EPT012910A) ( COPPER SIDE ) - 22 -...
- Page 24 All manuals and user guides at all-guides.com PART LIST TR−127GK/DX MAIN PCB REFERENCE RANGER DESCRIPTION C110 CC0503915G 390PF 50WV NUMBER PART NO. C109 CC0505615G 560PF 50WV CC0500301A 3PF 50WV EPT012910Z MAIN PCB C132 CC0500602A 6PF 50WV 0 Ω 1/16W R131,132...
- Page 25 All manuals and user guides at all-guides.com TR3,5,9,10,11,15,19,21 T2SC00945P 2SC945P JP4,5,8,9,15,18,19,23,25,26,27 WX01070708 JUMP WIRE TR4,20,22,24 T2SA00733P 2SA733P ,56,59,61,62,64,65,66,67,68, 69,70,71,72,73,75,81,82,85, TR12 T2SC01674L 2SC1674L 86,29,101,L25 TR13 F2SK00192L 2SK192ABL JP1,2,3,7,10,17,21,22,30,31,32 WX01070710 JUMP WIRE TR14 F2SK00192R 2SK192A-GR ,35,36,37,38,39,40,55,63,87, TR16 T2SC02078D 2SC2078D TR17,28 T2SC02314F 2SC2314F JP11,20,24,28,33,57,58 WX01070713 JUMP WIRE...
- Page 26 All manuals and user guides at all-guides.com TR-127GK/DX SCHEMATIC DIAGRAM...
- Page 27 All manuals and user guides at all-guides.com TR-127GK MECHANICAL PART PART NO. DESCRITTION QT'Y PT240N010H FRONT PANEL (GOLD) BT240N020F ID PLATE TR-127 PT2400020H KNOB A (GOLD) KNOB C (GOLD) PT2400040H PT2400050H KNOB D (GOLD) PT2400030H KNOB B (GOLD) PTDX55020A DISPLAY WINDOW (AMBER) MT3600100T D SPRING D #8500 MT3600090T...
- Page 28 All manuals and user guides at all-guides.com TR-127DX MECHANICAL PART PART NO. DESCRITTION QT'Y PT240N010A FRONT PANEL (CHROME) BT240N020F ID PLATE TR-127 PT2400020C KNOB A (CHROME) PT2400040C KNOB C (CHROME) PT2400050C KNOB D (CHROME) PT2400030C KNOB B (CHROME) PTDX55020A DISPLAY WINDOW (AMBER) MT3600100T D SPRING D #8500 MT3600090T...
- Page 29 All manuals and user guides at all-guides.com Communications, Inc. AT0127040A COPYRIGHT 2004, Ranger Communications, Inc.
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