Page 1
Communications, Inc.
REV. A
Dec. 2004
TR-127GK/DX
40 CHANNEL
AM CB MOBILE RADIO
Service Manual
Page 2
TABLE OF
TR-127GK/DX
CONTENTS
PAGE
CHAPTER 1
SPECIFICATIONS
1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CHAPTER 2
OPERATION
2.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Control & Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.2 Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . … 7
2.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . … 7
2.4 Alternate Microphones And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CHAPTER 3
CIRCUIT DESCRIPTION
3.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 PLL Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9
3.2 Receiver Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Transmitter Modulation Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . … 9
3.4 Transmitter Amplifier Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 4
ALIGNMENT
4.0 Required Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . … 11
4.1 Alignment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 5
MAINTENANCE
5.0 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
5.2 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CHAPTER 6
DIAGRAMS AND PARTS LIST
6.0 PCB Layout & Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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Page 3
TR-127GK/DX
1.0 GENERAL
Model TR-127GK, TR-127DX
Channels 40
Frequency Range 26.965 – 27.405 MHz
Emission Modes AM
Frequency Control Phase Lock Loop (PLL) synthesizer
Frequency Stability 0.001 %
Operating Temperature Range
Antenna Impedance 50 Ohms
Input Voltage 13.8V DC
Antenna Connector Standard SO-239 type
Dimensions 7 1/4”(W) x 9”(D) x 2 1/4”(H)
Weight 3.4 lbs.
1.1 TRANSMITTER
RF Power Output AM : 4 watts
RF Transmit Modes AM
Spurious Emissions - 60dB
Audio Frequency Response 300 to 2500 Hz
Microphone Dynamic
Output Indicators Meter shows incoming signal strength, RF output
1.2 RECEIVER
Sensitivity For 10dB S/N
IF Frequency AM: 10.695 MHz 1st IF, 455 KHz 2nd IF
Image Rejection - 50dB
Adjacent Channel Selectivity - 60dB
RF Gain Control 45dB adjustable for optimum signal reception
Automatic Gain Control (AGC) Figure Of Merit 100mV for 10dB Change in Audio Output
Squelch
Noise Blanker RF type
Audio Output Power 2.5W @ 10% THD
Audio Frequency Response 300 to 2500 Hz
Built-in Speaker 8 Ohms, 4 Watts
External Speaker (Not Supplied) 8 Ohms, 4 Watts
(SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE)
CHAPTER 1
SPECIFICATIONS
-30°C to +50°C
power, and SWR level. Transmit LED glows red
when transmitter is in operation.
< 1.0µV
Adjustable; threshold less than 0.5µV
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Page 4
CHAPTER 2
TR-127GK/DX
9 14131210 11 181715 16
TR - 127
MIC GAIN
ANLS/RF
SWR
CAL OFF LOW
VOL SQ
OFF
OFF PA
TONECBNB CH19
SWR CALRF GAIN
OPERATION
TX/RX
NORMAL ANT
CLARIFY
1 6432578
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.
1. MICROPHONE JACK: Used to connect microphone for voice source.
2. MIC GAIN CONTROL: Adjust the microphone gain in the transmit and PA modes. This controls
the gain to the extent that full talk power is available several inches away from the microphone. In
the Public Address (PA) mode, the control function as the volume control.
3. ON/OFF VOLUME CONTROL: This knob controls the volume and power to the radio. To turn
radio on, rotate the knob clockwise. Turning the knob further will increase the volume of the
receiver.
4. SQUELCH CONTROL: This knob is used to eliminate background noise being heard through the
receiver, which can be disturbing when no transmissions are being heard through the receiver. To
use this feature, turn the knob fully counterclockwise and then turn clockwise slowly until the
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Page 5
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. RF GAIN CONTROL: This control is used to reduce the gain of the RF (receive) amplifier under
strong signal conditions.
6. SWR CAL CONTROL: This SWR CAL control allows the user to calibrate the SWR meter.
7. CLARIFY CONTROL: Allows tuning of the receive frequency above or below the channel
frequency.
8. CHANNEL SELECTOR: This control is used to select the desired transmit and receive channel.
9. FRONT PANEL METER: The front panel meter allows the user to monitor incoming signal
strength, RF output power and SWR level.
10. S-RF/CAL/SWR SWITCH: In the S-RF position, the meter will indicate the strength of the signal
being received, as well as the relative RF output of transmission. When calibrating the SWR meter,
you need to put this switch in the CAL position. To use the meter to measure the standing wave
ratio, turn the switch to the SWR position.
11. ANL/OFF SWITCH: In the ANL position, the Automatic Noise Limiter (ANL) in the audio
circuits is activated.
12. NB/OFF SWITCH: In the NB position, the Noise Blanker (NB) is activated. The NB is very
effective in eliminating repetitive impulse noise such as ignition interference.
13. PA/CB SWITCH: Select the mode of operation. In the PA position, the radio acts as public address
amplifier. Your voice will come out of the speaker that is plugged into the PA. SP. jack on the rear
panel. The radio does not operate when you are in the PA mode. In the CB position, the PA function
is disabled and the radio will transmit and receive on the speaker that is connected.
14. TONE SWITCH HI/LO: This switch changes tone quality in receive only. In LO position, bass is
increased and in HI position, treble is increased.
15. CH19/NORMAL SWITCH: Channel 19 switch is used for instant to information channel 19.
16. TX/RX LED: The red LED indicates the unit is in the transmit mode. The green LED indicates the
unit is in the receive mode.
17. ANT LED: This LED lights red when your SWR is higher than about 3:1. This is not an exact
indicator of 3:1 SWR, but it is an indication that you should check your SWR reading.
18. CHANNEL DISPLAY: The channel display indicates the current selected channel.
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REAR PANEL
Figure 2-2 represents the location of the following connections:
134
This device complies with part 15 of the FCC Rules.
Operation is subject to the condi tion that this device
does not cause harmful interference.
FCC ID : MEE−VX−129CN
MODEL NO. : TR−127
AM 40 CH
SERIAL NO. :
CB TRANSCEIVER
MADE IN CHINA
ANT.
EXT.SP. PA.SP.
+POWER−
2
Figure 2-2 Rear Panel
1. ANTENNA: This jack accepts a 50-ohm coaxial cable with a PL-259 type plug.
2. DC POWER: This jack accepts the 13.8V DC power cable with built-in fuse. The power cord
provided with the radio has a black and red wire. The black goes to negative and red goes to
positive.
3. EXT SP.: This jack accepts a 4 to 8 ohm, 5-watt external speaker. When the external speaker is
connected to this jack, the built-in speaker will be disabled.
4. PA SP.: This jack is for PA operation. Before operating, you must first connect a PA speaker (8
ohms, 4W) to this jack.
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2.1.3 FREQUENCY CHART
CHANNEL
CHANNEL FREQUENCY
(MHz)
CHANNEL
CHANNEL FREQUENCY
(MHz)
1 26.965 21 27.215
2 26.975 22 27.225
3 26.985 23 27.255
4 27.005 24 27.235
5 27.015 25 27.245
6 27.025 26 27.265
7 27.035 27 27.275
8 27.055 28 27.285
9 27.065 29 27.295
10 27.075 30 27.305
11 27.085 31 27.315
12 27.105 32 27.325
13 27.115 33 27.335
14 27.125 34 27.345
15 27.135 35 27.355
16 27.155 36 27.365
17 27.165 37 27.375
18 27.175 38 27.385
19 27.185 39 27.395
20 27.205 40 27.405
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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.
2.3 OPERATION
2.3.1 PROCEDURE TO RECEIVE
1. Be sure that the power source, microphone and antenna are connected to the proper connectors
before going to the next step.
2. Turn VOL knob clockwise to apply power to the radio.
3. Set the VOL to a comfortable listening level.
4. Set the MODE switch to the desired mode.
5. Listen to the background noise from the speaker. Turn the SQUELCH knob slowly clockwise until
the noise just disappears. The SQUELCH is now properly adjusted. The receiver will remain quiet
until a signal is actually received. Do not advance the control too far or some of weaker signals will
not be heard.
6. Set the CHANNEL selector switch to the desired channel.
7. Set the RF GAIN control fully clockwise for maximum RF gain.
8. Adjust the CLARIFY control to optimize AM signals.
2.3.2 PROCEDURE TO TRANSMIT
1. Select the desired channel of transmission
2. Set the MIC GAIN control fully clockwise.
3. If the channel is clear, depress the push-to-talk switch on the microphone and speak in a normal
voice.
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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. The third lead is for transmit control and the fourth is for receiving control.
The microphone should provide the functions shown in the schematic below (Figure 2-3).
4 WIRE MIC CABLE
Pin Number Mic Cable Lead
1 Audio Shield
2 Audio Lead
3 Transmit Control
4 Receive Control
Figure 2-3 Your Transceiver Microphone Schematic
Figure 2-4 Microphone plug and pin numbers viewed from rear of pin receptacle.
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TR-127GK/DX
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. The PLL circuit consists primarily of IC2, IC3, and Q23. The
PLL circuit is programmed by the rotary channel switch GPS-668. The GPS-668 communicates the
correct binary data information to the programmable divider inside of IC2. IC2 then controls the VCO
(Voltage Controlled Oscillator) to oscillate on the correct frequency. This signal is fed either into the
receiver’s first mixer (for receive operation) or the transmitter’s mixer (for transmit operation).
3.2 RECEIVER CIRCUIT
The incoming RF signal comes into the radio via the antenna and into the front-end pre-amp, Q12. The
RF signal is fed into the mixer circuit of Q13 and then into the AM IF section of the receiver. The
signal is then detected by the AM detector and then fed to the audio amplifier section of the receiver
and finally out to the speaker.
3.3 TRANSMITTER MODULATION CIRCUIT
(1) The transmitter modulation circuit modulates the low-level RF signal from the PLL exciter circuit
with the user’s audio voice signal from the microphone. The audio from the microphone is then
amplified and fed into the transmit amplifier circuit.
(2) The AF power amplifier modulates the last RF amplifier, which produces a true amplitude
modulated RF signal.
3.4 TRANSMITTER AMPLIFIER CIRCUIT
The transmitter takes the basic exciter signal from IC4 of the TX mixer and amplifies it through a series
of amplifiers consisting of Q18, Q17 and Q16 where it is sent out to the antenna connector.
CHAPTER 3
CIRCUIT
DESCRIPTION
- 9 -
Page 11
IC1
AF POWER
Q19
MIC AMP
IC1
DC 13.8V
Q25
AF POWER
REG
SQ
Q9,Q10,Q15
Q24
TX,RX SW
X1 10.240MHz
X2 10.695MHz
D2,3
IC4
AM IF AM DET
Q6 - Q8
VCO
IC3 L23
PLL IC
IC2
TX MIXER
TX 8V
8V
RX 8V
FL1
C.F. 455KHz
TR-127GK/DX BLOCK DIAGRAM
NB
Q1 - Q5
ANT
RX
Q14
AM/FM MIX
Q13
1ST MIXER
Q12
RF AMP
RF GAIN
Q11
- 10 -
Q23 Q27 Q28 15.48M
OSC
MIXER
L.P.F
L21GPS-668
PLL CODE
ROTARY SW
PLL
Q18
DRIVER DRIVER
Q16 Q17
TX POWER
FILTER
L12,13,14
LOW PASS
TX
Page 12
TR-127GK/DX
CHAPTER 4
ALIGNMENT
4.0 REQUIRED TEST EQUIPMENT
c DC Power Supply (13.8VDC, 10A)
d RF Wattmeter (10W)
e Multi-meter
f Automatic Modulation Meter
g Audio Signal Generator
h Frequency Counter (100 MHz)
i RF Signal Generator (100 MHz)
j Automatic Distortion Meter
k Oscilloscope (50 MHz)
l Sinad Meter
4.1 ALIGNMENT PROCEDURES
This transceiver has been aligned at the factory and does not require any adjustments at installation.
The required test equipment listed are used for the test setup or alignment shown in Figure 4-1
Transmitter Test Setup and Figure 4-2 Receiver Test Setup. These test setups are used in part or total
during the following adjustments. Refer to page 14 for adjustment locations.
4.1.1 PLL ALIGNMENT
ITEM U.U.T. SETTING
VCO Set radio to CH 1 AM RX mode.
Connect Oscilloscope to TP3. L24 Adjust for max.
Connect Multi-meter to TP9.
AM Frequency Set radio to CH 19 AM RX mode.
Connect Frequency Counter to TP3.
AM OSC Set radio to CH 19 AM TX mode.
Connect Frequency Counter to TP5.
ADJUST
POINT
L23
L29
L23
MEASUREMENT
2.5 VDC ± 0.1
16.4900MHz ± 20Hz
10.6950MHz ± 10Hz
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4.1.2 TRANSMITTER ALIGNMENT
,
ITEM U.U.T. SETTING
TX Power Set radio to CH 19 AM TX mode.
Connect RF Power Meter to antenna jack.
AM TX Power Set radio to CH 19 AM TX mode.
RF Power
Meter
AM TX
Modulation
ANT LED
Set radio to CH 19 AM TX mode.
Set S/RF /SWR/CAL Switch to S/RF position. VR5
Set radio to CH 19 AM TX mode.
AF signal 30mV, 1 KHz to microphone.
Set MIC Gain fully clockwise.
Set radio to CH 19 AM TX mode.
Connect 150 ohms load to antenna jack
4.1.3 RECEIVER ALIGNMENT
ITEM U.U.T. SETTING
AM Sensitivity Set radio to CH 19 AM RX mode.
Set RF GAIN fully clockwise.
Set SQ fully counter-clockwise.
Set VOL Control at 2 o’clock.
Connect RF SG to antenna jack
Frequency 27.185 MHz, 1uV. Mod 30%.
Set radio to CH 40 AM RX mode.
RF SG setting 27.405 MHz.
Set radio to CH 1 AM RX mode.
RF SG setting 26.965 MHz.
NB Adjust Set radio to CH 19 AM RX mode
RF SG setting 27.205 MHz,
100uV. Mod 30%.
Set switch to NB position.
Connect Oscilloscope to D1 cathode.
AM Squelch Set radio to CH 19 AM RX mode.
Set SQ Control fully clockwise.
RF SG setting 27.185 MHz, 1mV. Mod 30%.
AM S-Meter Set radio to CH 19 AM RX mode.
RF SG setting 27.185 MHz, 100uV. Mod 30%. VR2
ADJUST
POINT
L26, L27,
L18
MEASUREMENT
MAX > 4W
Balance Power
Between CH. 1 - 40
L14 3.8 W
For a needle reading
of between green and
red area on TX PWR
scale.
VR4
For a needle reading
of 90% on the
external modulation
meter.
VR6
ADJUST
POINT
L4, L5,L6,L7
L8, L9,
L20,L2, L3
Adjust very slowly
until ANT LED just
light on.
MEASUREMENT
Audio Output > 2V
S/N > 10 dB.
VR1
L4,L5
For Balance Between
CH 1 and CH 40.
L1
VR3
Adjust for max.
Adjust very slowly
until squelch just
closes.
For a reading of “9”
on the “S” scale.
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Page 14
Figure 4-1 Transmitter test setup
Figure 4-2 Receiver test setup
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Page 15
TR-127GK/DX MAIN PCB ADJUSTMENT LOCATION
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Page 16
TR-127GK/DX
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.
(ii) Ensure that the input voltage does not exceed 16 VDC or fall below 11.
(iii) Transmitting over long periods can cause heat built-up and cause transmitter damage.
5.1 PERIODIC INSPECTION
This unit is aligned at the factory to deliver maximum performance. However, continued performance
cannot be expected without periodic inspection and maintenance. Important points to be checked
regularly are as follows;
CHAPTER 5
MAINTENANCE
Check Item Action
Whip antenna (option) If cracked or broken, replace it.
Coaxial cable If sheath is cracked or immersed
in water, install new coaxial
cable.
Coaxial & power plug
connections
Battery connection If corroded, clean power
Ground terminal If corroded, clean terminal.
5.2 FUSE REPLACEMENT
To protect the equipment from serious damage, a fuse is provided on the power supply lines. The fuse
protects against over voltage / 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 the transceiver
requirement should not be used, since it may permanently damage the equipment. Damage due to over
fusing is not covered by the warranty.
If loosened, reconnect. If
corroded, clean contacts.
terminals.
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Page 17
CHAPTER 6
TR-127GK/DX
6.0 GENERAL
Information on most electrical and mechanical parts is included in the parts list. The reference
designators are in alphanumeric order.
DIAGRAMS &
PARTS LIST
- 16 -
Page 18
TR-127GK/DX ROTARY SWITCH PCB (EPT092920Z)
(SMD-COPPER SIDE) ( COMPONENT SIDE )
- 17 -
Page 19
PART LIST:
TR-127GK/DX ROTARY SW. P.C.B
ITEM
REFERENCE
NUMBER
RANGER PART
NUMBER
DESCRIPTION
1 EPT012921Z ROTARY SW PCB
2 R305 RCY010004Z
3 R306 RCY013314Z
CHIP/F/R 0.0 Ω 0.1W
CHIP/F/R 330 Ω 0.1W
R307,R308,R309,R310,
4
R311,R312,R313,R314,
RCY016814Z
CHIP/F/R 680 Ω 0.1W
R315,R316,R317,R318,
D301,D307,D316,D317,
5
D318,D319,D320,D321,
EDSS00355Y DIODE (S.M.D.) 1SS355
D322
D302,D303,D304,D305,
6
D306,D308,D309,D310,
D311,D312,D313,D314,
EDSS00181Y DIODE (S.M.D.) 1SS181-TE85L
D315
7 Q301,Q303,Q304 TYZRN1403Z TR RN1403-TE85L
8 Q302 TYDTC114TK TR DTC114TK
9 ROTARY SW EWRT32059S ROTARY SW GPS-0668
10 J303 EX07N48223 PCB CONN/S 2 PIN
11 J301 EX07N48222 PCB CONN/S 5 PIN
12 J302 EX07N48209 PCB CONN/S 10 PIN
13 J301(SH3044) EX07N49403 PCB CONN/S 5 PIN
14 J302 EX07N49231 PCB CONN/S 10 PIN
15 J303 EX07N49245 PCB CONN/S 2 PIN
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Page 20
TR-127GK/DX DISPLAY PCB (EPT092930Z)
( COMPONENT SIDE )
( COMPONENT SIDE )
( COPPER SIDE )
- 19 -
Page 21
PART LIST:
TR-127GK/DX DISPLAY P.C.B
ITEM
REFERENCE
NUMBER
RANGER PART
NUMBER
DESCRIPTION
1 EPT012930Z DISPLAY PCB
2 D201 EX01Y40004 LED 3mm RED/GREEN
3 LED DISPLAY EX03N40016 LED DISPLAY GREEN
4 D202 EX01N40140 LED 3mm RED
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Page 22
TR-127GK/DX MAIN PCB (EPT012910A)
( COMPONENTS SIDE )
- 21 -
Page 23
TR-127GK/DX MAIN PCB (EPT012910A)
( COPPER SIDE )
- 22 -
Page 24
PART LIST
TR−127GK/DX MAIN PCB
REFERENCE
NUMBER
R131,132 RCM160004Z
R56,62 RCM161094Z
R107 RCM162294Z
R64 RCM168294Z
R65 RCM162204Z
R72,103 RCM163304Z
R68 RCM163904Z
R53 RCM164704Z
R19,104 RCM165604Z
R14,41,44,48,81,112,130 RCM161014Z
R58,102,129 RCM161514Z
R54 RCM161814Z
R18 RCM162214Z
R77 RCM163314Z
R40,66,113,123 RCM164714Z
R7,11,17,59 RCM165614Z
R108,124 RCM168214Z
R6,9,13,67,71,98,111,117,133 RCM161024Z
R33,88,101 RCM161524Z
R60,87 RCM161824Z
R10,20,37,46,76,79,80,94,96,9
7,114
R93 RCM162224Z
R69,99,106,120,125 RCM162724Z
R26 RCM163924Z
R47,70,75,105 RCM164724Z
R2,15,39,73,78,82,122,126 RCM165624Z
R42,55,92,121 RCM166824Z
R86 RCM168224Z
R3,5,28,30,36,45,49,50,85,95,
115
R89,119 RCM161234Z
R21,32,35,38,74,116,118 RCM162234Z
R12 RCM162734Z
R34,90,91 RCM163334Z
R27,29 RCM163934Z
R16 RCM164734Z
R25,31 RCM166834Z
R23,24,51 RCM168234Z
R8,52 RCM161044Z
R83 RCM161544Z
R22 RCM165644Z
R84 RCM168244Z
R1 RCM161054Z
R4 RCM162254Z
R61 RCM121024Z
R100 RCP161514Z
R43 RCP163324Z
R63 RCP142204Z
R57 RFP103994Z
R127 RFP101004Z
R109 RFP101504Z
R128 RCP104704Z
R110 RFP202014Z
C9 CC0500101L 1PF 50WV
C1 CC0501004L 10PF 50WV
C61 CC0501015L 100PF 50WV
C67 CC0501515L 150PF 50WV
C4,5 CC0502015L 200PF 50WV
C27 CC0502215L 220PF 50WV
C73,81,170 CC0504715L 470PF 50WV
C6 CC0506815L 680PF 50WV
RANGER
PART NO.
EPT012910Z MAIN PCB
RCM162224Z
RCM161034Z
DESCRIPTION
0 Ω 1/16W
1 Ω 1/16W
2.2Ω 1/16W
8.2Ω 1/16W
22 Ω 1/16W
33 Ω 1/16W
39 Ω 1/16W
47 Ω 1/16W
56 Ω 1/16W
100Ω 1/16W
150Ω 1/16W
180Ω 1/16W
220Ω 1/16W
330Ω 1/16W
470Ω 1/16W
560Ω 1/16W
820Ω 1/16W
1K Ω 1/16W
1.5KΩ 1/16W
1.8KΩ 1/16W
2.2KΩ 1/16W
2.2KΩ 1/16W
2.7KΩ 1/16W
3.9KΩ 1/16W
4.7KΩ 1/16W
5.6KΩ 1/16W
6.8KΩ 1/16W
8.2KΩ 1/16W
10K Ω 1/16W
12K Ω 1/16W
22K Ω 1/16W
27K Ω 1/16W
33K Ω 1/16W
39K Ω 1/16W
47K Ω 1/16W
68K Ω 1/16W
82K Ω 1/16W
100KΩ 1/16W
150KΩ 1/16W
560KΩ 1/16W
820KΩ 1/16W
1 M Ω 1/16W
2.2MΩ 1/16W
1K Ω 1/2W
150 Ω 1/16W
3.3K Ω 1/16W
22 Ω 1/14W
3.9 Ω 1W
10 Ω 1W
15 Ω 1W
47 Ω 1W
200Ω 2W
C110 CC0503915G 390PF 50WV
C109 CC0505615G 560PF 50WV
C94 CC0500301A 3PF 50WV
C132 CC0500602A 6PF 50WV
C107,129,168 CC0501004A 10PF 50WV
C22 CC0501504A 15PF 50WV
C92 CC0502704A 27PF 50WV
C93 CC0503304A 33PF 50WV
C56,101 CC0504704A 47PF 50WV
C108,167 CC0506804A 68PF 50WV
C57 CC0508204A 82PF 50WV
C100,130,161 CC0501015A 100 PF 50WV
C58,64,131 CC0502215A 220 PF 50WV
C59 CC0502715A 270 PF 50WV
C63,66 CC0505604D 56 PF 50WV
C12,37,42,44,52,53,54,55,123,
160,162
C2,3,7,15,16,24,26,28,29,30,3
1,32,50,65,68,70,76,80,82,83
,84,85,87,96,97,105,111,112,
113,114,117,121,122,125,12
7,128,133,134,135,137,138,1
40,141,143,145,146,147,148,
149,150,151,152,153,154,15
5,156,157,158,159,163,165,1
66,169,33
C8,10,11,14,38,74,126,142 CC0501047L 0.1 UF 50WV
C60,69 CC0504727L 0.0047UF
C99 CC0502237L 0.022UF50WV
C62,119,139,144 CC0503937L 0.039UF50WV
C17,46 CM0501024Z 0.001UF50WV
C75 CM0501035Z 0.01 UF 50WV
C89,98 CM0501045Z 0.1 UF 50WV
C39,164 CM0502225Z 0.0022UF
C19,21 CM0506825Z 0.0068UF
C40 CM0503335Z 0.033UF50WV
C18 CM0503935Z 0.039UF50WV
C34,103,106 CM0504735Z 0.047UF50WV
C49 CM0506835Z 0.068UF50WV
C47 CM0502245Z 0.22 UF 50WV
C90,91,102 CT0162256Z 2.2 UF 16WV
C78 CT0163356Z 3.3 UF 16WV
C13 CT0161066Z 10 UF 16WV
C20,79,88 CE0501057Z 1.0 UF50WV
C23,45,86,104 CE0504757Z 4.7 UF50WV
C36 CE0163367Z 33 UF 16WV
C48,72,115,116 CE0164767Z 47 UF 16WV
C77,124 CE0162277Z 220UF 16WV
C35,71,118,120,136 CE0161077Z 100UF 16WV
C51 CE0164777Z 470UF 16WV
C95 CE0161087Z 1000UF16WV
C41 CE0251067Z 10 UF 25WV
C43 CE0251087Z 1000UF25WV
C25 CE0501067Z 10UF 50WV
C171 CK1471AB5A 470PF 50WV
FL1 EFCFU455HT CFU455HT
FL2 EFCFE107MX SFE10.7MX
X1 EYCAB10240 10.240MHZ
X2 EYCAB10695 10.695MHZ
X3 EYCAE15480 15.480MHZ
IC1 ENTA07222A TA7222AP
IC2 ENRG871999 RCI-8719A
IC3 ENNOHIC07A UHIC017A
IC4 ENTA07310P TA7310P
TR1,2,6,7,8,23,27,28 T2SC01675L 2SC1675L
CC0501027L 0.001UF 50WV
CC0501037L 0.01 UF 50WV
50WV
50WV
50WV
RED
- 23 -
Page 25
TR3,5,9,10,11,15,19,21 T2SC00945P 2SC945P
,
,
TR4,20,22,24 T2SA00733P 2SA733P
TR12 T2SC01674L 2SC1674L
TR13 F2SK00192L 2SK192ABL
TR14 F2SK00192R 2SK192A-GR
TR16 T2SC02078D 2SC2078D
TR17,28 T2SC02314F 2SC2314F
TR18 T2SC01906Z 2SC1906
TR25 T2SD00880Y 2SD880Y
TR29 TDTC0114YS DTC114YSA
D1,2,3,4,10,11,13,14 ED1N00060P 1N60P
D5,6,7,8,12,15,16,17,19,21,22,
24
D9,23 ED1N04003Z 1N4003
D18 EDZD05919Z 9.1V 0.5W
D20 ED1V00136Z 1SV136
L1 ECIFT12392 I.F.T
L2 ECIFT12399 I.F.T
L3 ECIFT12400 I.F.T
L4 ECIFT12393 I.F.T
L5 ECIFT12394 I.F.T
L6 ECIFT12395 I.F.T
L7 ECIFT12396 I.F.T
L8 ECIFT12397 I.F.T
L9 ECIFT12398 I.F.T
L18 ECIFT12190 I.F.T
L20,24,28 ECIFT12010 I.F.T
L23
L26 ECIFT12404 I.F.T
L27 ECIFT12405 I.F.T
L29 ECIFT12383 I.F.T
L15 ECCHK16000 0.47UH
L21,30 ECCHK16142 100 UH
L22 ECCHK16146 470 UH
L14,17 ECRFZ10001 0.23UH
L10 ECRFZ10204 BF2159576
L11 ECSPG18000 SPRING COIL
L12,13 ECSPG18003 SPRING COIL
L16 ECBAD18504 BEAD COIL
L19 ECBAD18520 BEAD COIL
L31 ECBAD18526 BEAD COIL
T1 ECCHK16294 CHOKE COIL
T2 ECCHK16004 CHOKE COIL
VR1,4 RE50100066 S/F/R
VR2 RE20300030 S/F/R
VR3 RE10400079
VR5 RE10300078 S/F/R
VR6 RE10200072 S/F/R
VC1 CV050200AZ TRIMMER/C
B+ ECBAD18582 BEAD COIL
RELAY EX05N40850 RELAY 12V
J3,6,8,11,12,14 EX07N48223 P/C/S 2P
J2,15,18 EX07N48350 P/C/B 3P
J4,5,9,10 EX07N48490 P/C/B 4P
J13 EX07N48222 P/C/B 5P
J17 EX07N48331 P/C/B 6P
J16 EX07N48543 P/C/B 9P
J19 EX07N48209 P/C/B 10P
J1 EX07N41330 P/C/B 2P T
J7 WX01070703 JUMP WIRE
JP34,42,43,44,45,50,51,52,53,
54,60,74,76,77,78,79,80,83,
84,88
ED1N04148Z 1N4148
P1613R
P1515F
18501N
ECIFT12017 I.F.T
XP1376Y
9441HM
500Ω 3P
20KΩ L
S/F/R 100KΩ
KVSF6-637A
10KΩ
1K Ω L
20PF 5Q
WX01070705 JUMP WIRE
JP4,5,8,9,15,18,19,23,25,26,27
,56,59,61,62,64,65,66,67,68
69,70,71,72,73,75,81,82,85,
86,29,101,L25
JP1,2,3,7,10,17,21,22,30,31,32
,35,36,37,38,39,40,55,63,87
89
JP11,20,24,28,33,57,58 WX01070713 JUMP WIRE
JP12,13,14,16,41,46,47,48,49 WX01070715 JUMP WIRE
JP6 WX01070718 JUMP WIRE
B- WJ0005005Z LEAD WIRE
PA ,EXT SP EX 06N41045 EAR JACK
WX01070708 JUMP WIRE
WX01070710 JUMP WIRE
- 1 -
- 24 -
Page 26
TR-127GK/DX SCHEMATIC DIAGRAM
Page 27
TR-127GK MECHANICAL PART
NO.
57
28
38
26
21
20
58
36
35
72
71
37
16
63
29
27
64
59
60
13
55
14
47
46
50
52
52
66
51
40
41
53
54
45
44
42
43
70
22
30
31
62
39
61
17
15
33
18
19
56
32
12
65
11
7
67
6
8
68
10
29
5
9
4
2
1
49
25
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
PART NO.
PT240N010H
BT240N020F
PT2400020H
PT2400040H
PT2400050H
PT2400030H
PTDX55020A
MT3600100T
MT3600090T
MT240N010X
MT3600042X
MT3600080T
MT240N030X
EX03N40016
MT1200031X
JS052012MN
XZZZ90020Z
XZZZ90003Z
JN242012ZS
MT1200121X
MT3600050X
LZZZ61008Z
MT240N060X
EPT91V130Z
MT1200021K
MT1200011K
XZZZ90007Z
MT1200090A
JS053006MN
ENTA07222P
JS013006MV
JN263035ZS
QT7799010A
JS053008MB
EX06T40007
JS053006MN
MT1200110M
JS053006MN
JS052606MN
EX01N40004
EX01N40133
EX03N40016
RV20303575
RV50203574
RV10203584
RV50303602
RV10203573
MT240N020X
LZZZ60001Z
EX06N41020
EWSL31026K
EWSL31027K
EPT012920Z
EPT012930Z
EPT012950Z
ES300835SQ
EPT012910Z
JS052606MN
XZZZ90064Z
T2SD00880Y
JS052012MN
EX06T41019
XZZZ90188Z
JS053006MN
JS052604MN
JS053006MN
JS053006MN
JS033006MN
XZZZ90296A
EWRT32059Z
BT240N030F
JF413206ZX
DESCRITTION
FRONT PANEL (GOLD)
ID PLATE TR-127
A (GOLD)
KNOB
KNOB
C (GOLD)
KNOB
D (GOLD)
B (GOLD)
KNOB
DISPLAY WINDOW (AMBER)
D SPRING D #8500
D SPRING B #7800
FRONT CHASSIS
CH SWITCH BRACKET
D SPRING A #6600
METER BRACKET
SWR METER
SIDE BRACKET
SCREW
M2X12
INSULATING PLATE 18*13 MM
INSULATING RING
NUT M2
HEATSINK
DC SOCKET BRACKET
IC SHIELD B
SHIELD HOUSING (EL)
EL DRIVE PCB
BOTTOM HOUSING
TOP HOUSING
MOUNTING SCREW
MOUNTING BRACKET
SCREW
M3X6
TA7222AP
SCREW
M3X6
M3
NUT
RUBBER COVER
SCREW
M3X8
DC SOCKET
SCREW
M3X6
BACK PLATE
SCREW
M3X6
SCREW
M2.6X6
LED RED/GREEN 3 MM
LED RED 3 MM
LED DISPLAY GREEN
VR 20 KB (CLARIFY)
VR 5 KB (SWR CAL)
VR 1 KB (RF GAIN)
VR 50KB/50KA/SW (VOL/SQ)
VR 1KA (MIC GAIN)
支架
SCREW
SHIELD CLOTH
MIC SOCKET 4 P
SLIDE SWITCH 2 N
SLIDE SWITCH 3 N
ROTARY SWITCH PCB
DISPLAY PCB
MIC PCB
SPEAKER 8 OHM 3 W 3.5 INCH
MAIN PCB
SCREW
M2.6X6
INSULATING PLATE 13*18*0.15 MM
TR 2SD880Y
SCREW
M2X12
ANT SOCKET
FIBER WASHER 4.9*15*1.0T
SCREW
M3X6
M2.6X4
SCREW
SCREW
M3X6
SCREW
M3X6
SCREW
M3X6
MASK PLATE (SW) ? 20MM
ROTARY SWITCH GPS-0668
FCC PLATE TR-127
BLIND RIVET 3.2x6mm
QT'Y
1
1
1
1
1
4
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
0
0
1
1
4
1
8
1
1
4
1
4
1
2
1
4
4
1
1
1
1
1
1
1
1
1
2
1
5
1
1
1
1
1
1
4
1
1
1
1
1
4
12
2
2
4
6
1
1
2
34
Page 28
TR-127DX MECHANICAL PART
NO.
57
28
38
26
21
20
58
36
35
72
71
37
16
63
29
27
64
59
60
13
55
14
47
46
50
52
52
66
51
40
41
53
54
45
44
42
43
70
22
30
31
62
39
61
17
15
33
18
19
56
32
12
65
11
7
6
8
67
68
10
29
5
9
4
2
1
49
25
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
PART NO.
PT240N010A
BT240N020F
PT2400020C
PT2400040C
PT2400050C
PT2400030C
PTDX55020A
MT3600100T
MT3600090T
MT240N010X
MT3600042X
MT3600080T
MT240N030X
EX03N40016
MT1200031X
JS052012MN
XZZZ90020Z
XZZZ90003Z
JN242012ZS
MT1200121X
MT3600050X
LZZZ61008Z
MT240N060X
EPT91V130Z
MT1200021K
MT1200011K
XZZZ90007Z
MT1200090A
JS053006MN
ENTA07222P
JS013006MV
JN263035ZS
QT7799010A
JS053008MB
EX06T40007
JS053006MN
MT1200110M
JS053006MN
JS052606MN
EX01N40004
EX01N40133
EX03N40016
RV20303575
RV50203574
RV10203584
RV50303602
RV10203573
MT240N020X
LZZZ60001Z
EX06N41020
EWSL31026K
EWSL31027K
EPT012920Z
EPT012930Z
EPT012950Z
ES300835SQ
EPT012910Z
JS052606MN
XZZZ90064Z
T2SD00880Y
JS052012MN
EX06T41019
XZZZ90188Z
JS053006MN
JS052604MN
JS053006MN
JS053006MN
JS033006MN
XZZZ90296A
EWRT32059Z
BT240N030F
JF413206ZX
DESCRITTION
FRONT PANEL (CHROME)
ID PLATE TR-127
A (CHROME)
KNOB
KNOB
C (CHROME)
KNOB
D (CHROME)
B (CHROME)
KNOB
DISPLAY WINDOW (AMBER)
D SPRING D #8500
D SPRING B #7800
FRONT CHASSIS
CH SWITCH BRACKET
D SPRING A #6600
METER BRACKET
SWR METER
SIDE BRACKET
SCREW
M2X12
INSULATING PLATE 18*13 MM
INSULATING RING
NUT M2
HEATSINK
DC SOCKET BRACKET
IC SHIELD B
SHIELD HOUSING (EL)
EL DRIVE PCB
BOTTOM HOUSING
TOP HOUSING
MOUNTING SCREW
MOUNTING BRACKET
SCREW
M3X6
TA7222AP
SCREW
M3X6
M3
NUT
RUBBER COVER
SCREW
M3X8
DC SOCKET
SCREW
M3X6
BACK PLATE
SCREW
M3X6
SCREW
M2.6X6
LED RED/GREEN 3 MM
LED RED 3 MM
LED DISPLAY GREEN
VR 20 KB (CLARIFY)
VR 5 KB (SWR CAL)
VR 1 KB (RF GAIN)
VR 50KB/50KA/SW (VOL/SQ)
VR 1KA (MIC GAIN)
支架
SCREW
SHIELD CLOTH
MIC SOCKET 4 P
SLIDE SWITCH 2 N
SLIDE SWITCH 3 N
ROTARY SWITCH PCB
DISPLAY PCB
MIC PCB
SPEAKER 8 OHM 3 W 3.5 INCH
MAIN PCB
SCREW
M2.6X6
INSULATING PLATE 13*18*0.15 MM
TR 2SD880Y
SCREW
M2X12
ANT SOCKET
FIBER WASHER 4.9*15*1.0T
SCREW
M3X6
M2.6X4
SCREW
SCREW
M3X6
SCREW
M3X6
SCREW
M3X6
MASK PLATE (SW) ? 20MM
ROTARY SWITCH GPS-0668
FCC PLATE TR-127
BLIND RIVET 3.2x6mm
QT'Y
1
1
1
1
1
4
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
0
0
1
1
4
1
8
1
1
4
1
4
1
2
1
4
4
1
1
1
1
1
1
1
1
1
2
1
5
1
1
1
1
1
1
4
1
1
1
1
1
4
12
2
2
4
6
1
1
2
34
Page 29
Communications, Inc.
AT0127040A
COPYRIGHT 2004, Ranger Communications, Inc.
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