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SERVICE
MANUAL
MULTI CHANNEL AM/FM TRANSCEIVER
TCB-550
TTI Tech
Page 2
TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 CIRCUIT DESCRIPTION
1 GENERAL
2 TECHNICAL DESCRIPTION
3 SEMICONDUCTORS AND FUNCTION
4 DESCRIPTION OF FREQUENCY DETERMINING AND STABILIZING CIRCUIT
5 TEST EQUIPMENT SETUP AND ALIGNMENT INSTRUCTIONS
SECTION
SECTION
SECTION 5 BOARD LAYOUT
SECTION 6 BLOCK DIAGRAM
3 PART LIST
4 MECHANICAL DISASSEMBLY
5-1 MAIN PCB
5-2
5-3 LED PCB
5-4 VOLUME PCB
5-5 MIC PCB
FRONT PCB
SECTION 7 SCHEMATIC
Page 3
SECTION1 SPECIFICATIONS
Channel
Frequency Range
Operating mode
G
Frequency Control
E
Frequency Tolerance
N
E
Operating Temperature Range
R
Microphone
A
Input Voltage
L
Size
Weight
Antenna Connector
T
Power Output
R
Modulation
A
N
S
M
Frequency Response
I
Output Impedance
T
T
Harmonic Suppression
E
Current Drain
R
40 (See the frequency band chart)
26.56 MHz ~ 28.00 MHz
F3E (FM), A3E (AM)
PLL Synthersizer
0.002%
-10 to + 55 C
Plug-in Type
13.2V DC ± 15%
124 (W) x 135 (L) x 37 (H)
655 g
Antenna Connector
Duty cycle 10% 4 Watts @13.2V DC
AM:from 85% to 95%
FM:1.8KHz ± 0.2KHz
300Hz to 3000Hz
50ohms, Unbalanced
More than -36dBm
AM Full Mod. 1.6A Max.
Receiving System
IF Frequencies
Sensitivity
R
Dual conversion superheterodyne
Double Conversion 1st 10.695MHz/2nd 455KHz
0.7 V for 10dB(S+N)/N
in AM Mode
0.5 V for 20dB SINAD in FM Mode
E
Audio Output Power
C
Audio Distortion
E
I
Image Rejection
V
Adjacent Channel Rejection
2.0W @ 8 Ohm
Less then 8% @ 1KHz
60 dB
60 dB
E
Conducted Spurious
R
Frequency Response
Built-in Speaker
Squelch
More than 60 dB
300 to 2500Hz
8 Ohms, round
Adjustable; Threshold less than 1 microvolt
* Specification is subject to change without prior notice.
Page 4
SECTION2 CIRCUIT DESCRIPTION
------------ Contents -------------
1 General
1-1. Receiver
1.2. Transmitter
2. Technical Description
2-1. General
2-2. Type of emission
2-3. Frequency Table
2-4. RF Power Output
2-5. DC input Voltage and Current with 13.2V DC Input to Power AMP
2-6. Receiver IF and Local Oscillator Frequencies
3. Semiconductors and Function
4. Description of Frequency Determining and Stabilizing Circuit
4-1. Introduction
4-2. Basic Synthesis Scheme
4-3. Descriptions of Each Block
4-3-1. Introduction
4-3-2. Reference Frequency
4-3-3. VCO
4-3-4. Programmable Divider and its Control
4-3-5 Phase Detector and VCO Control
4-3-6. Transmitter / Receiver Buffer AMP
4-3-7. Transmitter Doublers
4-3-8. Switching of Turning Capacitor in VCO
4-3-9. Receiver Local Oscillator Outputs
4-4. Frequency Stability
4-5. Description of other Circuits
4-5-1. Transmitter
4-5-2. Receiver
5. Test Equipm
5-1.
5-2.
5-3.
6.
7.
8.
9.
10.
VCO Section
Transmitter Section
Receiver Section
Test Data
Schematic Diagram
Block Diagram
PCB Map
PARTS LIST
ent Setup and Alignment Instructions
Page 5
1. General
1-1. Receiver
Display : 40 Channels and other functions indication
Frequency Range : 26.965 to 27.405 [MHz]
Frequency Response : 300 to 2,500 [Hz]
Power Source : 13.2 [V] DC
Audio Output Load : 8 [OHM] Resistive
Audio Output : 4.0 [W] (or More)
Squelch : Adjustable from 0.2[uV] to 1 [mV]
Sensitivity :
- FM : 20 dB [SINAD] under 1.0 [uV] or less
- AM :10 dB [S/N] under 1.0 [uV] or less
Intermediate Frequency :
- 1st IF : 10.695 [MHz]
- 2nd IF : 455 [KHz]
1-2. Transmitter
Carrier Power(Conducted) : AM 1 [W] / FM 4.0 [W]
Current Drain ( 13.2 [V] Supply Voltage)
- No Modulation : 1,100 [mA] (No Modulation)
- Max Modulation : 1,400 [mA] (Full Modulation)
Modulation Capabilities
- AM : +/- 90 [%]
- FM : +/- 1.8 [KHz/Dev]
Spurious Radiation : Less then -74 [dBc]
Antenna Impedance : 50 [OHM]
Frequency Tolerance : 0.002 [%]
Page 6
2. Technical Description
2-1. General
Model CB-550 is an mobile type AM/FM radio transceiver for use of the Citizen Radio Service.
Front Panel Controls
LCD Display(Cannel ,RX,TX,AQ,SCAN,AM,FM,EMG Indicator).
Receiver Audio Control (With Power ON/OFF Control) Volume
Squelch Control Volume (S/W ON : TIGHT, S/W OFF : AUTO SQ)
RF Gain Control Volume
CHANNEL UP/DOWN TACT SWITCH.
AM/FM TACT SWITCH
EMG TACT SWITCH
Accessable Connectors
Antenna Jack
2-2. Type of em
2-3. Frequency Range : 26.965 MHz (CH.1) - 27.405 MHz (CH.40)
External Speaker Jack
External Power Cord
Microphone Jack.
ission : AM(A3E) , FM(F3E)
2-4. RF Power Output : AM/FM 4.0 Watts
2-5. DC Input Voltage and Current With 13.2V DC Input to Power AMP
Transmitter Power AMP ----------- VOLTAGE 12.5 V
Current 820mA
Transmitter DRIVER AMP --------VOLTAGE 12.5 V
Current 130mA
2-6. RECEIVER IF AND LOCAL OSCILLATOR FREQUENCIES.
FIRST IF -------------------------------- 10.695 MHz
SECOND IF ---------------------------- 455 KHz
FIRST LOCAL OSCILLATOR------- 10.965 MHz Below RECEIVING FREQUENCY
SECOND LOCAL OSCILLATOR--- 10.240 MHz
Page 7
2-3. SEMICONDUCTORS AND FUNCTION
REF.NO
QR1
QR2
QR3
QR4
QR5
QR6
QR7
QQ1
QQ2
QQ4
QAS1
QAS2
QAS3
QAS4
QFS1
QFS2
QUS1
QRS1
QTS1
QG1
QG2
QG3
QG4
QG5
QHL1
QV1
QW1
QW2
QN1
QN2
QT2
QT3
QT4
Q1
Q2
Q3
IC1
IC2
IC3
IC4
IC5
IC6
IC7
DESCRIPTION RX TX REMARK
KTC4080E
KTC4080E
KTC4080E
KTC4075E
KTC4080E
KTC4080E
KRA2014E
KRC410E
KTC4075E
KRC402E
KRC410E
KRA305E
KRC402E
KRC410E
KRC402E
KRC410E
KRC404E
KTC4075E
KTA2014E
KTA1658
KTA2014E
KRC401E
KTC3875S
KTC3875S
KRC402E
KTC4080E
KTC4080E
KTC4080E
KRC401E
KRA305E
KTC4080
2SC2314
2SC2078
KRA226S
KRC401E
KRC404E
DBL5019
KIA358F
TDA2003
24WCO2J
TMP86FM29UG
LC7152
KIA358F
RF AMP
1'st MIXER
1'st MIXER
RF ATTENUATOR
IF AMP
IF AMP
A.N.L.
SQ MUTE
RF ARRENUATOR
AUTO SQ S/W
FM MUTE
AM B+
AM B+ CONTROL
X
X
POP MUTE
SQ CONTROL
RX B+
X
X
X
X
MAIN REGULATOR
CPU REGULATOR
X
VCO
X
X
X
X
X
X
X
LCD BACK LIT
LCD BACK LIT
CPU RESET
FM 1F
SQ CONTROL
X
EEPROM
CPU
PLL
X
X
X
X
RF ATTENUATOR
X
X
X
X
RF ATTENUATOR
X
X
X
X
AM AUDIO PATH
FM AUDIO S/W
X
X
X
TX B+
TX POWER REGULATOR
TX POWER REGULATOR
TX POWER REGULATOR
MAIN REGULATOR
CPU REGULATOR
POWER HI/LOW S/W
VCO
BUFFER
DOUBLER
TX ENABLE
TX ENABLE B+
BUFFER
DRIVER
POWER AMP
LCD BACK LIT
LCD BACK LIT
CPU RESET
X
X
TX AM AUDIO AMP
EEPROM
CPU
PLL
TX FM AUDIO AMP
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
KEC
SANYO
SANYO
KEC
KEC
KEC
AUK
KEC
SGS
HOLTEK
TOSHIBA
SANYO
KEC
*** MANUFACTURER INFORMATION ***
* K.E.C --------------- KOREA ELECTRONICS SEMICONDUCTOR CO.,LTD.
* TOSHIBA -------------- TOSHIBA SEMICONDUCTOR CO.,LTD.
* SANYO ---------------- JAPAN SANYO SEMICONDUCTOR CO.,LTD.
* SGS --------------------- SGS THOMSON SEMICONDUCTOR CO.,LTD.
Page 8
4. Description of Frequency Determining and Stabilizing Circuitry
4-1. Introduction
The Frequencies for transmitter and receiver first local frequencies are all derived from a signal
10.695MHz cry
Phase lcoked loop.
The first local oscillator frequencies are 16.270MHz(CH1) to 16.710MHz(CH40). The second local
frequency is fixed at 10.240MHz to generate second IF 455KHz.
Transmit, the VCO of the PLL operates 13.4825MHz(CH1) to 13.7025MHz(40CH). The VCO frequency
goes to the doublers circuit DW2, LT1, LT2 which doubles the frequency to generate 26.965MHz(CH1)
to 27.405MHz(40CH).
The VCO operating frequency for the receiver is 16.27MHz(CH1) to 16.710MHz(CH40) as the
first local oscillator, injected through the buffer amplifier Q302 into the first FET balanced mixer QR2,3.
4-2. Basic Synthesis Scheme
The crystal frequency(10.24MHz) is divided by 4069times to make 2.5KHz which is fed to one
side of the phase detector. The VCO output is divided by a programmable divider, and fed to other side of
the phase detector Pin 22, 23 of IC6.
The feedback loop is closed by passing the phase detector output through an active low pass filter and using
the output to control the VCO frequency through varicap diode DV1,2.
Under locked conditions, both of phase detector input signal must be identical at 2.5KHz.
The VCO frequency is then given by ;
Receiver : Fvco / N = 0.0025 [MHz] OR Fvco = 0.0025 X N [MHz]
Since “N” is an integer, the VCO frequency can be stepped up with 2.5 KHz increments.
By suitable choice of “N” the desired output frequency can be obtained.
stal and second local frequencies are derived from 10.240 MHz crystal by means of a
QV1
VCO
13.4825MHz(CH1)
~
13.7025MHz(CH40)
27.405MHz(CH40)
QW1
Doublers
26.965MHz(CH1)
To transmitter
~
Channel 1 Channel 40
N Fvco N Fvco
Transmit 5393
Receiver
See the [Table 1]for other Channels
The VCO frequency goes to the doublers circuit, with doubles the incoming signals.
VCO Output Frequency Doublers Output Frequency
3254
13.4825
16.2700
5481
3342
13.7025
16.7100
Page 9
Transmit
---
---
---
Transmit
Since all frequencies are obtained from the crystal controlled PLL oscillator, all outputs are
coherent with the crystal oscillator frequency and matching the same percentage accuracy.
CH 1 , 13.4825 MHz
CH 40 , 13.7025 MHz
26.965 MHz
27.405 MHz
Page 10
Program Data & Frequency[Table 1]
Channel
1 26.965 3254 16.27
2 26.975 3256 16.28
3 26.985 3258 16.29
4 27.005 3262 16.31
5 27.015 3264 16.32
6 27.025 3266 16.33
7 27.035 3268 16.34
8 27.055 3272 16.36
9 27.065 3274 16.37
10 27.075 3276 16.38
11 27.085 3278 16.39
12 27.105 3282 16.41
13 27.115 3284 16.42
14 27.125 3286 16.43
15 27.135 3288 16.44
16 27.155 3292 16.46
17 27.165 3294 16.47
18 27.175 3296 16.48
19 27.185 3298 16.49
20 27.205 3302 16.51
21 27.215 3304 16.52
22 27.225 3306 16.53
23 27.255 3312 16.56
24 27.235 3308 16.54
25 27.245 3310 16.55
26 27.265 3314 16.57
27 27.275 3316 16.58
28 27.285 3318 16.59
29 27.295 3320 16.60
30 27.305 3322 16.61
31 27.315 3324 16.62
32 27.325 3326 16.63
33 27.335 3328 16.64
34 27.345 3330 16.65
35 27.355 3332 16.66
36 27.365 3334 16.67
37 27.375 3336 16.68
38 27.385 3338 16.69
39 27.395 3340 16.70
40 27.405 3342 16.71
Frequency
[MHz]
N Fvco N Fvco
RX TX
5393
5395
5397
5401
5403
5405
5407
5411
5413
5415
5417
5421
5423
5425
5427
5431
5433
5435
5437
5441
5443
5445
5451
5447
5449
5453
5455
5457
5459
5461
5463
5465
5467
5469
5471
5473
5475
5477
5479
5481
13.4825
13.4875
13.4925
13.5025
13.5075
13.5125
13.5175
13.5275
13.5325
13.5375
13.5425
13.5525
13.5575
13.5625
13.5675
13.5775
13.5825
13.5875
13.5925
13.6025
13.6075
13.6125
13.6275
13.6175
13.6225
13.6325
13.6375
13.6425
13.6475
13.6525
13.6575
13.6625
13.6675
13.6725
13.6775
13.6825
13.6875
13.6925
13.6975
13.7025
Page 11
4-3. Description Of Each Block
4-3-1. Introduction
The synthesizer is implemented with the following companents :
PLL IC (IC6)
X-TAL(X2)
VARICAP DIODE(DV1,2)
IC6 is a CMOS LSI that includes most of PLL block. The VCO with varicap diode DV1,2 as
a part of the oscillator tank circuit.
QV2 is a switching transistor to connect or disconnect the tunning capacitor in the VCO oscillator
tank circuit for transmitter or receiver.
4-3-2. Reference frequency
The crystal, X2(10.24MHz) and other components at PIN 1 and 24 of IC6 can make a reference
frequency oscillator with internal amplifier.
The oscillator output is internally fed to a divied by 4096 to produce A 2.5KHz swuare wave witch
is the reference input to the phase detector.
4-3-3. VCO
QV1 is connected as a hartley type oscillator with varicap diode as part of the tank circuit. With
Appropriate control voltage on D601 the VCO can be oscillate over the required range of
13.4825MHz to 16.710 MHz.
4-3-4. Programmable divider and its control
The programmable inputs for each channel are set by the PLL clock(PIN34), DATA(PIN35),
Enable(PIN33) of IC5.
Each input signal to control the PLL IC is done with the provided key input PIN 12~15.
For each key input, an internal code convert EEPROM provides the appropriate control to the
programmable divider for that channel.
Since the change transmit and receive, and additional BIT is required ar PIN 16 of IC5 to allow
the ROM to recognize the status TX or RX.
During transmit the push to talk switch grounds PIN 16 thru diode(DS1) which is the transmit
status.
Thr programmable divider output is fed to the phase detector for comparison with the 2.5KHz
reference. See TABLE 1 for actual input and divide ratio on all channels.
4-3-5. Phase Detector and VCO control
The phase detector is a digital phase comparator which compares the phase of the reference
woth programmable divider output square waves and develops a series of pulses whose DC
level depends on the phase error of each signal.
The phase detector pulse output is fed to an active low pass filter and RC LPF ouput signal
of IC6 is filtered and fed to varicap DV1,2 control the VCO frequency.
Page 12
4-3-6. Transmitter / Receiver Buffer AMP
The VCO output is fed into buffer AMP QW1 from the capacitor of CW1.
4-3-7. Transmitter Doubler
The output signal of QW1 goes to an amplifier tuning circuit(27MHz) QW2, LT1, LT2 which
doubles incoming 13MHz signals.
4-3-8. Switching of tuning capacitor in VCO.
The VCO circuit must turn with a wide range of frequencies 13.4825MHz - 13.7025 MHz for
transmitter and 16.27MHz - 16.710 MHz for receiver. The use of one tuning capacitor in common
has adverse effects as a decrease in C in the tuning circuit and the occurrence of may spurious.
To eliminate these effects, the tuning capacitance is switched for transmission or reception.
The tank circuit consist of the primary of LV1, CV1, CV4, CV6, CV7 when receiving QV2 becomes
off.
So. the primary of LV1 and make tuning function. when transmitting, QW2 becomes on.
So, the primary if LV1 and the parable capacitance of CV11 make turning function.
4-3-9. Receiver Local Oscillator Outputs
-First Mixer :
The output of VCO is injected through buffer AMP QW1 and than
The emitter follower output through the emitter of 1'st mixer or 2,3.
-Second Mixer :
The output of 10.240 MHz oscillator circuit with X2 is injected into the if IC of IC1.
Incoming if signal and 10.240 MHz signal are mixed inside the IF IC to 2'nd IF signal 455MHz.
FM audio signal are recovered with the way of quadrature detector.
AM signlas are recovered with envelope detector.
4-4. Frequency Stability
LET : Fo=Crystal Oscillator Frequency
Fr=Phase detector reference frequency
Fvco=VCO frequency
Ft=Transmit freqency
THEN : Fr=Fo/1800
And under locked confitions : Fr =Fvco / N
Where N is the programmable divider divide ratio.
THEN : Fvco= N X Fr = N(Fo/1800)
From which it can be seen, the percentage error in Ft is the percentage error in Fo.
The stability of the crystal oscillator is determined primarily by the crystal itself and having lesser
deviation by the active and passive components of the oscillator. The choice of crystal and
components is such that the required frequency stability is maintained over the required voltage and
tempertature range.
4-5. Description of other circuits.
4-5-1. Transmitter
1. RF Amplification
Page 13
The output of doubler AMP QW2 is fed through double tuning(27MHz) LT1 and LT2 to the base
of PRE AMP QT2. The output is then supplied through tuning circuit LT3 to RF driver AMP QT3.
The QT3 output is capacitance divided by tuning circuit CT10, CT12, LT4, CT13 and passed through
the base of final RF stage QT4. The QT4 output is supplied to the antenna through L-C tuning circuit
(CT21, CT22, LT11, CT26, LT12, CT27, CT28, LT14, CT30).
2. Circuit for suppression of spurious radiation
The tuning circuit between frequency synthersizer and final AMP QT4 and 4-stage " PI"
network CT21, CT22, LT11, CT26, LT12, CT27, CT28, LT14, CT30 in the QT4 output circuit serve
to suppress spurious radiation. This network serves to impedance match QT4 to the antenna and to
reduce spurious content to acceptable levels in the frequency synthersizer.
3. Circuit for Limiting Power
After finished all alignment, the constant voltage supply circuit limites the available power 4W or
slightly less. Corresponding three-TR control supply voltage of RF power amplifier. When power
low S/W function QHL1 changed the supply voltage. Tune all the trimming parts for max indication
of RF power meter and adjust VR3 to make 4W indication of RF power meter. After finished the above
adjustment check the RF power meter reading is changed 1W under ' Low" state.
The tuning is adjusted so that the actual power is from 3.6 to 3.9 watts.
There are no other additional controls for adjusting the TX output power.
4. Modulation
- AM
The MIC input is fed to audio power amplifier IC3 which drives modulation transformer TM1.
The audio output at the secondary of TM1 is fed the modulating audui signals series with the B+
voltage to the collectors of driver QT3 and TX power AMP QT4 to modulate both these stages.
A portion of the modulating voltage is rectified with DM1 which controls QM2 and QM1 to attenuate
the MIC input to MIC AMP IC3.
The resulting feedback loop keeps the modulation from exceeding 100 percent inputs approximately
40dB greater than that requires to produce 50% modulation.
- FM
The MIC input is fed to MIC audio amplifier IC7 that drives modulation varicap diode DV1,2 in the
VOC circuit RV3 limits the incoming modulation audio levels to inhibit over modulation. While
reading the modulation factor on the modulation analyzing equipment, adjustment RV3 shall not exceed
2.0 KHz deviation.
4-5-2. Receiver
CB receiver is dual conversion super-heterodyne type with the first IF 10.695MHz and the
second IF 455KHz.
Receiver is separated two blocks, 1’st IF section and 2’nd IF section. The PLL synthesizer
supplies 1’st
With the provided first local frequencies QR2,3 mixes the incoming signal to generate first IF signal.
Mixed signals were filteres with the CF1(10.695MHz) crystal filter and tuned circuits.
With the 10.24MHz signal,IC1 FM IF IC converts the incoming signals to generate second IF signal.
2'nd IF is filtered by a razor sharp seramic filter CF3 coulpled.
The 455KHz signals from the 2nd IF filter were amplified and limits inernally. After amplification
the signals fed to the quadrature detector loop LR5. Than could see the recovered sifnals PIN 9
of IC1.
local frequency 16.270MHz ~ 16.710MHz.
Page 14
AM signals form the PIN 5 of IC1 were tapped with CR34 and amplified two-stage amplifier QR5,6 is a
a first 455KHz amplifier.
DR3 is a detector diode witch produce audio signal as well as negative DC voltage fir AGC action.
The negative voltage laso provides forward biasing to the mitter of ANL clipping TR QR7.
The biasing voltage has a time constant determined RR44 and CR54.
Therefore any sharp negative going pulse from DR3 will back bias QR7 and clipped.
The way to recover the AM information audio is envelope detector.
** Test Equipment Setup and Alignment Instructions
5-1. VCO voltage adjustment
5-1-1. Required Test Equipment
1) DC power supply : 13.8VDC / 3A
2) DC Voltmeter or Oscilloscope
3) RF attenuator (30dB)
5-1-2. Alignment Procedure
Step Test Item UUT setting Equipment setting
RX VCO voltage Channel: CH1
Adjustment
1
TX VCO voltage Channel: CH1
Adjustment
2
5-3. Equipment connection
UUT: RX condition
Others: Don’t care
UUT: TX condition
Others: Don’t care
Measure the DC voltage
on the VCO test point
Measure the DC voltage
on the VCO test point
Alignment
point
LV1 1.8~2.1
(VDC)
LV1 1.5~2.5
(VDC)
Spec.
Figure 1
Page 15
5-2. Transmitter Section Alignment
5-2-1. Required Test Equipment : If uses in HP8920, the 1)~7) equipment is not a necessity.
1) RF Power Meter
2) 50 ohm Load (non-inductive)
3) RF attenuator (30dB)
4) Audio Generator
5) Modulation meter
5-2-2. Alignment procedure
6) Frequency counter
7) DC Voltmeter
8) Spectrum analyzer
9) DC power supply: 13.8VDC / 3A
10) Oscilloscope
Step Test Item UUT setting Equipment setting
TX
Frequency
Adjustment
1
TX
Power
Adjustment
2
AM Modulation Channel: CH19
Adjustment
3
Channel: CH19
Function:
1) AM or FM mode
2) CB
Unit: TX condition
(MIC PTT on)
Others: Don’t care
Channel: CH19
Function:
1) AM or FM mode
DC power supply : 15.6V
Unit: TX condition
(MIC PTT on)
Others: Don’t care
Function:
1) AM mode
2) CB
Unit: TX condition
(PTT on)
Others: Don’t care
Connect the equipment and
UUT as shown on Figure.2
Connect the equipment and
UUT as shown on Figure.3
Connect the equipment and
UUT as shown on Figure.3
Audio generator
1) Set to 1KHz / 50mV
2) Input to MIC
Adjustment:
1) Adjust RVM1 to obtain
85% modulation
Alignment
point
CTX1
LT1
LT2
RVM1
Spec.
27.185MHz
+/-300Hz
Max.4W
( If cannot
get a power
up to 4W,
adjust VR3)
Max : 90 %
Page 16
Step Test Item UUT setting Equipment setting
Alignment
Spec.
point
FM
Deviation
Adjustment
4
TX
Signal
Meter
of the UUT
5
Adjustment
Half harmonic
6
of the UUT
Adjustment
Channel: CH19
Function:
1) FM mode
2) CB
Unit: TX condition
(PTT on)
Others: Don’t care
Band Mode : F Band
Channel: CH19
Function:
1) FM mode
2) CB
Unit: TX condition
Connect the equipment and
UUT as shown on Figure.3
Audio generator
1) Set to 1KHz / 50mV
2) Input to MIC
Adjustment:
1) Adjust RV3 to obtain
1.8KHz deviation
Connect the equipment and
UUT as shown on Figure.2
AM:1W , FM:4W
Adjustment:
1. AM mode : 1 W
2. FM mode : 4 W
(PTT on)
Others: Don’t care
Channel: CH19 Connect the equipment and
Function:
1) AM mode
2) CB
Unit: TX condition
(PTT on)
Others: Don’t care
UUT as shown on Figure.4
Spectrum
1) Reference Level 35dB
2) Span 50KHz
Adjustment:
1) Carrier Level (by spectrum)
Center Frequency : 27.185MHz
Spec : 33 ~ 35dBm
2) Half Harmonic (by spectrum)
Center Frequency : 39.5925MHz
Spec : < -100 dBm
RV3
LT1
LT2
1.8KHz
Should
display
.AM mode :
1W
TX - Bar
.FM mode :
4W
TX - Bar
< -100dBm
Channel: CH19 Connect the equipment and
UUT as shown on Figure.4
Spectrum
1) Reference Level 35dB
2) Span 50KHz
Adjustment:
1) Carrier Level (by spectrum)
Center Frequency : 27.185MHz
Spec : 33 ~ 35dBm
2) 2nd Harmonic (by spectrum)
Center Frequency : 54.37 MHz
LT12
< -86dBm
LT14
2nd Harmonic
7
of the UUT
Adjustment
Function:
1) AM mode
2) CB
Unit: TX condition LT11
(PTT on)
Others: Don’t care LT13
Spec : < -86 dBm
Page 17
Figure 2
Figure 3
Spectrum
Notchfilter
30dBATT
TCB550
5-3. Receiver Section Alignment
5-3-1. Required Test Equipment : If uses in HP8920, the 1)~4) equipment is not a necessity.
1) Standard Signal Generator (SSG)
2) SINAD Meter
3) AC Level Meter
4) Distortion Meter
5-3-2. Alignment procedure
Step Test Item UUT setting Equipment setting
AM
Audio output
Adjustment
1
Channel: CH19 Connect the equipment and
Function:
1) AM mode 2) CB
Unit: RX condition
Volume: Optional
Squelch: Minimum
Others: Don’t care
Figure 4
5) Oscilloscope
6) DC power supply (13.2V/3A)
7) 8 ohm Dummy Load
UUT as shown on Figure.5
SSG setting:
1) Freq.: 27.185MHz
2) AF: 1KHz
3) RF level: -47dBm
4) Modulation: 30%
Power
Supply
Alignment
point
LR1
L1
L2
L3
LR2
LR3
LR4
Spec.
Audio Level:
>5V at maximum
unit’s volume.
Distortion:
<5% at 2V audio
level (need unit’s
volume adj. to get
2V audio level)
Page 18
Step Test Item UUT setting Equipment setting
RX sensitivity Same as step ”1”
2
SSG setting:
1) RF level: -107dBm
2) Others: same as step ”1”
Alignment
point
Spec.
<-107dBM
at 10dB SINAD
(if not,align again)
FM
Audio output
Adjustment
3
RX sensitivity Same as step ”3” SSG setting:
4
TIGHT
Squelch
Adjustment
5
AUTO
Squelch
Adjustment
6
Channel: CH19
Function:
1) FM mode 2) CB
Unit: RX condition
Volume: Optional
Squelch: Minimum
Others: Don’t care
Channel: CH19
Function:
1) FM mode
2) CB
Unit: RX condition
Volume: Don’t care
Squelch: Maximum
Others: Don’t care
Channel: CH19
Function:
1) FM mode
2) CB
Unit: RX condition
Volume: Don’t care
Squelch VR: OFF
Others: Don’t care
Connect the equipment and
UUT as shown on Figure.5
SSG setting:
1) Freq.: 27.185MHz
2) AF: 1KHz
3) RF level: -47dBm
4) Modulation: 1.5KHz
1) RF level: -107dBm
2) Others: same as step ”3”
Connect the equipment and
UUT as shown on Figure.5
SSG setting:
1) Freq.: 27.185MHz
2) AF: 1KHz
3) RF level: -47dBm
4) Modulation: 1.5KHz
Adjustment:
1. adjust RVQ1
Connect the equipment and
as shown on Figure.5
SSG setting:
1) Freq.: 27.185MHz
2) AF: 1KHz
3) RF level: -107dBm
4) Modulation: 1.5KHz
Adjustment:
1. adjust the RVQ2
Audio Level:
LR5
RVQ1
RVQ2
>5V at maximum
unit’s volume.
Distortion:
<5% at 2V audio
level (need unit’s
volume adj. to get
2V audio level)
<-107dBm
at 20dB S/N
(if not,align again)
Adjust until
audio signal
is appeared
on the scope.
Adjust until
audio signal
is appeared
on the scope.
Figure 5
Page 19
SECTION3 PART LIST
NO LEVEL P/N DESCRIPTION QTY
1 ASSY 5A0-5504-000
2 PART 102-331J-S00 FILM RES. 330OHM 0.5W +-5 ST 1.00
3 PART 102-471J-S00 FILM RES. 470OHM 0.5W +-5 ST 1.00
4 PART 142-100J-000 CHIP RES. 0603 10OHM +-5 PHILIPS 1.00
5 PART 142-102J-000 CHIP RES. 0603 1KOHM +-5 PHILIPS 1.00
6 PART 142-104J-000 CHIP RES. 0603 100KOHM +-5 PHILIPS 1.00
7 PART 142-105J-000 CHIP RES. 0603 1MOHM +-5 PHILIPS 1.00
8 PART 142-222J-000 CHIP RES. 0603 2.2KOHM +-5 PHILIPS 1.00
9 PART 142-223J-000 CHIP RES. 0603 22KOHM +-5 PHILIPS 1.00
10 PART 142-472J-000 CHIP RES. 0603 4.7KOHM +-5 PHILIPS 4.00
11 PART 142-473J-000 CHIP RES. 0603 47KOHM +-5 PHILIPS 29.00
12 PART 212-102B-3K0 CHIP CERAMIC CAP.0603 0.001UF X7R 16V +-10 PHILIPS 2.00
13 PART 212-103B-3K0 CHIP CERAMIC CAP. 0603 0.01UF X7R 16V +-10 PHILIPS 1.00
14 PART 212-105F-3Z0 CHIP CERAMIC CAP. 0603 1UF Y5V 16V -20+80 PHILIPS 2.00
15 PART 212-470C-6J0 CHIP CERAMIC CAP. 0603 47PF NP0 50V +-5 PHILIPS 2.00
16 PART 305-0226-000 CHIP TR. KRA226S KEC 1.00
17 PART 305-0401-000 CHIP TR. KRC401E KEC 1.00
18 PART 305-0404-000 CHIP TR. KRC404E KEC 1.00
19 PART 320-0509-006 IC CPU(FLASH) JT5BL9 TOSHIBA - TCB550 1.00
20 PART 338-2402-A00 IC EEPROM FT24C02A FMD 1.00
21 PART 350-0603-001 CHIP LED BLUE 0603 19-217 BHC-CLEM2RY 3T YADA 4.00
22 PART 352-4686-000 LCD SDM8A4686A SANTECH 1.00
23 PART 363-0800-000 CRYSTAL 8.0MHZ 49S-8.000-20-30 SHOULDER 1.00
LCD PCB ASS′Y - TCB550
1.00
Page 20
24 PART 500-5504-000 LCD PCB MP03 - TCB550 1.00
25 PART 564-1109-100 SWITCH TACT KFC-821 GABOU 4.00
26 PART 701-C7700-60A DIFFUSER LENS ACRYL CLEAR 1.00
27 PART 701-C7700-70A REFLECTOR ACRYL CLEAR 1.00
28 PART 702-C7700-50A LCD BRACKET SPTE 0.3T DESHAN 1.00
29 PART 703-C7700-20A ZEBRA SILICONE 1.00
30 PART 718-R000D-036 EVA SPONGE-B 20X2.0X0.8T, BLACK 2.00
31 PART 718-R000D-037 EVA SPONGE-A 49X2.0X0.8T, BLACK 2.00
32 PART 719-R000D-004 DOUBLE SIDE TAPE FOR DIFFUSER 29X3.5X0.2T 2.00
33 PART 722-R0000-001 WHITE SHEET POLYESTER 0.1T 1.00
34 ASSY 5A0-5504-100
35 PART 102-100J-S00 FILM RES. 10OHM 0.5W +-5 ST 1.00
36 PART 102-229J-S00 FILM RES. 2.2OHM 0.5W +-5 ST 1.00
37 PART 102-331J-S00 FILM RES. 330OHM 0.5W +-5 ST 1.00
38 PART 102-471J-S00 FILM RES. 470OHM 0.5W +-5 ST 1.00
39 PART 112-100J-S00 METAL OXID RESISTOR 10OHM 2W +-5 ST 1.00
40 PART 142-000J-000 CHIP RES. 0603 0OHM +-5 PHILIPS 1.00
41 PART 142-100J-000 CHIP RES. 0603 10OHM +-5 PHILIPS 6.00
42 PART 142-101J-000 CHIP RES. 0603 100OHM +-5 PHILIPS 3.00
43 PART 142-102J-000 CHIP RES. 0603 1KOHM +-5 PHILIPS 7.00
44 PART 142-103J-000 CHIP RES. 0603 10KOHM +-5 PHILIPS 19.00
45 PART 142-104J-000 CHIP RES. 0603 100KOHM +-5 PHILIPS 10.00
46 PART 142-106J-000 CHIP RES. 0603 10MOHM +-5 PHILIPS 1.00
47 PART 142-152J-000 CHIP RES. 0603 1.5KOHM +-5 PHILIPS 3.00
48 PART 142-153J-000 CHIP RES. 0603 15KOHM +-5 PHILIPS 2.00
49 PART 142-154J-000 CHIP RES. 0603 150KOHM +-5 PHILIPS 1.00
50 PART 142-220J-000 CHIP RES. 0603 22OHM +-5 PHILIPS 1.00
MAIN PCB ASS′Y - TCB550
1.00
Page 21
51 PART 142-222J-000 CHIP RES. 0603 2.2KOHM +-5 PHILIPS 7.00
52 PART 142-223J-000 CHIP RES. 0603 22KOHM +-5 PHILIPS 5.00
53 PART 142-224J-000 CHIP RES. 0603 220KOHM +-5 PHILIPS 1.00
54 PART 142-225J-000 CHIP RES. 0603 2.2MOHM +-5 PHILIPS 1.00
55 PART 142-229J-000 CHIP RES. 0603 2.2OHM +-5 PHILIPS 3.00
56 PART 142-272J-000 CHIP RES. 0603 2.7KOHM +-5 PHIILIPS 5.00
57 PART 142-273J-000 CHIP RES. 0603 27KOHM +-5 PHILIPS 1.00
58 PART 142-331J-000 CHIP RES. 0603 330OHM +-5 SAMSUNG_PHILIPS 1.00
59 PART 142-335J-000 CHIP RES. 0603 3.3MOHM +-5 PHILIPS 1.00
60 PART 142-393J-000 CHIP RES. 0603 39KOHM +-5 PHILIPS 1.00
61 PART 142-470J-000 CHIP RES. 0603 47OHM +-5 PHILIPS 4.00
62 PART 142-471J-000 CHIP RES. 0603 470OHM +-5 PHILIPS 1.00
63 PART 142-472J-000 CHIP RES. 0603 4.7KOHM +-5 PHILIPS 8.00
64 PART 142-473J-000 CHIP RES. 0603 47KOHM +-5 PHILIPS 14.00
65 PART 142-474J-000 CHIP RES. 0603 470KOHM +-5 PHILIPS 1.00
66 PART 142-562J-000 CHIP RES. 0603 5.6KOHM +-5 PHILIPS 1.00
67 PART 142-563J-000 CHIP RES. 0603 56KOHM +-5 PHILIPS 1.00
68 PART 142-681J-000 CHIP RES. 0603 680OHM +-5 PHILIPS 1.00
69 PART 142-821J-000 CHIP RES. 0603 820OHM +-5 PHILIPS 1.00
70 PART 162-103V-000 TRIM. POTENTIOMETER WS0612-B103-000-G36 CTR 2.00
71 PART 162-222V-001 TRIM. POTENTIOMETER WS0612-B222-000-G36 CTR 1.00
72 PART 162-223V-001 TRIM. POTENTIOMETER WS0612-B223-000-G36 CTR 1.00
73 PART 162-472V-001 TRIM. POTENTIOMETER WS0612-B472-000-G36 CTR 1.00
74 PART 202-1059-M00 ELECT CAP. 1UF KR1-16V010MA 5x11 DONGXIANG 1.00
75 PART 202-1069-M00 ELECT CAP. 10UF KR1-16V100MA 5x11 DONGXIANG 13.00
76 PART 202-108E-M00 ELECT CAP. 1000UF KR1-16V102MF 10x20 DONGXIANG 2.00
77 PART 202-2259-M00 ELECT CAP. 2.2UF KR1-16V2R2MA 5x11 DONGXIANG 1.00
Page 22
78 PART 202-2279-M00 ELECT CAP. 220UF KR1-16V221MB 5x11 DONGXIANG 1.00
79 PART 202-4749-M00 ELECT CAP. 0.47UF KR1-16V47MA 5x11 DONGXIANG 1.00
80 PART 202-4769-M00 ELECT CAP. 47UF KR1-16V470MA 5x11 DONGXIANG 2.00
81 PART 202-4779-M00 ELECT CAP. 470UF KR1-25V471MA 10x15 DONGXIANG 1.00
82 PART 212-050C-6C0 CHIP CERAMIC CAP. 0603 5PF NP0 50V +-0.25 PHILIPS 1.00
83 PART 212-080C-6C0 CHIP CERAMIC CAP. 0603 8PF NP0 50V +-0.25 PHILIPS 1.00
84 PART 212-100C-6J0 CHIP CERAMIC CAP. 0603 10PF NP0 50V +-5 PHILIPS 4.00
85 PART 212-101C-6J0 CHIP CERAMIC CAP. 0603 100PF NP0 50V +-5 PHILIPS 11.00
86 PART 212-102B-3K0 CHIP CERAMIC CAP.0603 0.001UF X7R 16V +-10 PHILIPS 5.00
87 PART 212-103B-3K0 CHIP CERAMIC CAP. 0603 0.01UF X7R 16V +-10 PHILIPS 26.00
88 PART 212-104B-3K0 CHIP CERAMIC CAP.0603 0.1UF X7R 16V +-10 PHILIPS 15.00
89 PART 212-105F-3Z0 CHIP CERAMIC CAP. 0603 1UF Y5V 16V -20+80 PHILIPS 5.00
90 PART 212-150C-6J0 CHIP CERAMIC CAP. 0603 15PF NP0 50V +-5 PHILIPS 1.00
91 PART 212-151C-6J0 CHIP CERAMIC CAP. 0603 150PF NP0 50V +-5 PHILIPS 4.00
92 PART 212-153B-3K0 CHIP CERAMIC CAP.0603 0.015UF X7R 16V +-10 PHILIPS 1.00
93 PART 212-180C-6J0 CHIP CERAMIC CAP. 0603 18PF NP0 50V +-5 PHILIPS 1.00
94 PART 212-181C-6J0 CHIP CERAMIC CAP. 0603 180PF NP0 50V +-5 PHILIPS 1.00
95 PART 212-221C-6J0 CHIP CERAMIC CAP. 0603 220PF NP0 50V +-5 PHILIPS 1.00
96 PART 212-270C-6J0 CHIP CERAMIC CAP. 0603 27PF NP0 50V +-5 PHILIPS 1.00
97 PART 212-390C-6J0 CHIP CERAMIC CAP. 0603 39PF NP0 50V +-5 PHILIPS 1.00
98 PART 212-470C-6J0 CHIP CERAMIC CAP. 0603 47PF NP0 50V +-5 PHILIPS 5.00
99 PART 212-471C-6J0 CHIP CERAMIC CAP. 0603 470PF NP0 50V +-5 PHILIPS 1.00
100 PART 212-472B-6K0 CHIP CERAMIC CAP.0603 0.0047UF X7R 50V +-10 PHILIP 2.00
101 PART 212-473B-3K0 CHIP CERAMIC CAP. 0603 0.047UF X7R 16V +-10 PHILIP 4.00
102 PART 212-560C-6J0 CHIP CERAMIC CAP. 0603 56PF NP0 50V +-5 PHILIPS 2.00
103 PART 212-561C-6J0 CHIP CERAMIC CAP. 0603 560PF NP0 50V +-5 PHILIPS 1.00
104 PART 22D-151C-J00 DISK CAP.CC1HCH151J (Label 50VCH151J) SAMIL 1.00
Page 23
105 PART 22D-331C-J00 DISK CAP.CC1HSL331J (Label 50VSL331J) SAMIL 1.00
106 PART 22D-471C-J00 DISK CAP.CC1HSL471J (Label 50VSL471J) SAMIL 1.00
107 PART 22D-561C-J00 DISK CAP.CC1HSL561J (Label 50VSL561J) SAMIL 1.00
108 PART 22D-681C-J00 DISK CAP. CC1HSL681J (Label 50VSL681J) SAMIL 1.00
109 PART 230-2000-000 DIP TRIMMER CAP. 6DIA 20PF KCVN620 FOKITS 1.00
110 PART 300-1504-000 CHIP TR KTA1504S SOT-23 KEC 1.00
111 PART 300-2014-000 CHIP TR. SWITCHING KTA2014E-Y KEC 3.00
112 PART 300-3875-000 CHIP TR. SWITCHING KTC3875S SOT-23 KEC 2.00
113 PART 300-4075-A00 CHIP TR. SWITCHING KTC4075E KEC 4.00
114 PART 300-4080-000 CHIP TR KTC4080E-Y KEC 9.00
115 PART 302-1658-000 TR KTA1658 KEC 1.00
116 PART 302-2078-000 TR 2SC2078E SANYO 1.00
117 PART 302-2314-000 TR 2SC2314F SANYO 1.00
118 PART 305-0305-000 CHIP TR. SWITCHING KRA305E KEC 2.00
119 PART 305-0401-000 CHIP TR. KRC401E KEC 1.00
120 PART 305-0402-000 CHIP TR. SWITCHING KRC402E KEC 4.00
121 PART 305-0404-100 CHIP TR. KRC404 KEC 1.00
122 PART 305-0410-100 CHIP TR. SWITCHING KRC410E KEC 6.00
123 PART 331-0358-A00 IC OP AMP KIA358F KEC 2.00
124 PART 332-2003-000 IC AUDIO AMP TDA2003 ST 1.00
125 PART 335-7152-A00 IC PLL LC7152NM SANYO 1.00
126 PART 336-5019-A00 IC IF SL5019 AUK 1.00
127 PART 340-0243-A00 DIODE ZENER Z02W4.3V SOT-23 KEC 1.00
128 PART 340-0251-A00 DIODE ZENER Z02W5.1V SOT-23 KEC 1.00
129 PART 340-0282-A00 DIODE ZENER Z02W8.2V SOT-23 KEC 1.00
130 PART 341-0251-A00 DIODE VARICAP KDV251S SOT-23 KEC 3.00
131 PART 342-0114-A00 CHIP DIODE SWITCHING KDS114E KEC 2.00
Page 24
132 PART 342-0120-B00 CHIP DIODE SWITCHING KDS120E KEC 1.00
133 PART 342-0121-B00 CHIP DIODE SWITCHING KDS121E KEC 3.00
134 PART 342-0122-A00 CHIP DIODE SWITCHING KDS122 KEC 1.00
135 PART 342-5822-001 DIP SCHOTTKY DIODE 1N5822 GD 1.00
136 PART 343-1060-000 DIODE 1N60 1.00
137 PART 343-4004-000 DIODE 1N4004TR 400V 1A 1.00
138 PART 343-5402-000 DIODE 1N5402 1.00
139 PART 360-1024-001 CRYSTAL 10.24MHZ 32PF 30PPM HC-49U YOKETAN 1.00
140 PART 367-1060-200 CRYSTAL FILTER 10.695MHZ 49T-3L 10L08A DTRON 1.00
141 PART 373-4551-500 CERAMIC FILTER LT455HTW DTRON 1.00
142 PART 400-0019-000 TRANSFORMER CHOCK T1 FINE 1.00
143 PART 400-0024-000 TRANSFORMER EI-24(MOD) T2 FINE 1.00
144 PART 406-5006-000
145 PART 406-5008-000
146 PART 406-5008-400 COIL SPRING 5.0RX0.8X4.5T FINE 2.00
147 PART 406-6008-000
148 PART 410-0270-000 IFT COIL RF FREE TX 27MHZ TX1 FINE 2.00
149 PART 410-0271-000 IFT COIL 27MHZ-B RX1 FINE 1.00
150 PART 410-0272-000 IFT COIL 27MHZ RX (7RC) RX2 FINE 1.00
151 PART 410-0450-000 IFT COIL 81C013 450KHZ FINE 1.00
152 PART 410-1070-000 IFT COIL 10.7MHZ RX-B RX3 FINE 1.00
153 PART 410-1650-000 IFT COIL 16.5MHZ VCO VCO1 FINE 1.00
154 PART 410-4551-000 IFT COIL 455KHZ-B RX5 FINE 1.00
155 PART 425-0150-000 COIL AXIAL 1.5UH AL0305 MATSUTA 2.00
156 PART 425-0680-000 COIL AXIAL 6.8UH AL0305 MATSUTA 2.00
157 PART 425-R390-000 COIL AXIAL 0.39UH AL0305 MATSUTA 1.00
158 PART 425-R470-001 COIL AXIAL 0.47UH AL0305 MATSUTA 1.00
COIL SPRING 5X0.6X13.5T：R 0.5UH FINE
COIL SPRING 5X0.8X8.5T：R FINE
COIL SPRING 6X0.8X5T：R 0.225UH FINE
1.00
2.00
1.00
Page 25
159 PART 427-0017-000 CORE SPRING 5.5TX0.45XM5ERX2.3 0.17UH FINE 3.00
160 PART 500-5504-100 MAIN PCB MP01 - TCB550 1.00
161 PART 535-3500-100 JACK DC PJ-625 GABOU 1.00
162 PART 540-0218-000 WAFER 2PIN PH-2A 180C FINE 1.00
163 PART 570-1001-000 VR R16100NS-KA20D11.5-B103-000-G74 CTR 1.00
164 PART 570-5001-000 VR R16100NS-KA20D11.5-A503-000-G74 CTR 1.00
165 PART 702-C5500-50A TX SHIELD CAN(1) SPTE 0.3T 1.00
166 PART 702-C5500-60A TX SHIELD CAN(2) SPTE0.3T 1.00
167 PART 702-C7700-80A VCO SHIELD CAN SPTE 0.3T DESHAN 1.00
168 ASSY 700-C550C-A00 COVER ASSY - TCB550 1.00
169 PART 520-6600-000 SPEAKER 66mm 66AR000-8P-4K11 ASAHI 1.00
170 PART 540-0215-000 WIRE HARNESS PH-2PIN TO OPEN UL 1007 NO26 L150mm 1.00
171 PART 702-C5500-10A BOTTOM COVER SPC+BLACK COATING 0.8t 1.00
172 PART 702-C5500-20A UPPER COVER SPC+BLACK COATING 0.8t 1.00
173 PART 702-C7700-30A BRACKET SPK EGI 1.0T COATING DESHAN 3.00
174 PART 706-3008T-BBH SCREW MACH(+) 3X8L-TAPTITE BLACK BH 9.00
175 PART 715-C650N-001 FELT (SPK) D65X0.3T BLACK 1.00
176 PART 715-R000D-024 FELT(COVER) 6x117x0.2t BLACK ONE SIDE DOUBLE TAPE 4.00
177 PART 718-R000D-001 CUSHION 20X24X4.0T EVA SPONGE BLACK 1.00
178 ASSY 700-C550E-A00 ESCUTCHEON ASSY - TCB550 1.00
179 PART 541-0400-000 CONNECTOR SOCKET FD-MIC4PIN-F NINGBO 1.00
180 PART 701-C5500-10A WINDOW ACRYL CLEAR SOLARIUM 1.00
181 PART 701-C5500-20A ESCUTCHEON ABS BLACK SOLARIUM 1.00
182 PART 701-C7700-50A VOL KNOB ABS (BLACK COLOR) 2.00
183 PART 703-C5500-10A KEY PAD SILICONE NATURAL PU coating 1.00
184 PART 706-2604S-BFH SCREW MACH(+) M2.6x4L BLACK FH 1.00
185 PART 706-2605S-NFH SCREW MACH(+) M2.6X5L Ni PLATED FH 3.00
Page 26
186 PART 708-26082-BPH SCREW TAP(+) 2.6X8L-2S BLACK PH(HEAD DIA 4.2) 2.00
187 PART 712-M70NI-001 RING NUT BsBm 2.00
188 PART 719-S000D-035 DOUBLE TAPE(WINDOW) 3M 0.16t 1.00
189 ASSY 700-C550M-B00 MAIN BODY ASSY - TCB550 1.00
190 PART 541-0239-002 CONNECTOR FD-ANT-1 NINGBO 1.00
191 PART 543-2000-000
192 PART 701-C5500-70A CORD STOPPER PP BLACK SOLARIUM 1.00
193 PART 701-C5500-80A
194 PART 702-C5500-30A MAIN BODY EGI 1.0t 1.00
195 PART 702-C5500-70A SHIELD COVER SPTE, 0.3T 1.00
196 PART 702-C7701-30A ANT. TERMINAL SPTE 0.2T 1.00
197 PART 706-3008T-BBH SCREW MACH(+) 3X8L-TAPTITE BLACK BH 5.00
198 PART 706-3010S-BBH SCREW MACH(+) M3X10L BLACK BH 4.00
199 PART 711-M30NI-000 NUT M3 Ni PLATED 4.00
200 PART 713-M30NI-S01 SPRING WASHER M3 4.00
201 PART 719-R000D-040 CU TAPE-1 COPPER(CU)41.7X9X0.1T 1 SIDE DOUBLE TAPE 1.00
202 PART 719-R000D-041 CU TAPE-2 COPPER(CU)63.5X15X0.1T 1SIDE DOUBLE TAPE 1.00
203 PART 723-C4100-011 INSULATION WASHER PAPER 3.0 (Red color) 1.00
204 PART 723-C7700-001 MICA 0.6T 1.00
205 ASSY 8A0-C550-000
206 PART 701-C5500-90A STUD BOLT ABS M6X8L BLACK SOLARIUM 2.00
207 PART 702-C5500-40A BRACKET SET SPC 1.6T BLACK 1.00
208 PART 702-C7701-10A BRACKET MIC SUS304 1.0T 1.00
209 PART 703-C7700-50A PACKING RUBBER 2.00
210 PART 706-3008T-BBH SCREW MACH(+) 3X8L-TAPTITE BLACK BH 2.00
211 PART 708-50121-ZTH SCREW TAP(+) 5X12L-1S ZN PLATING TH 3.00
212 PART 714-M30NI-001 STAR WASHER-S M3 NI PLATING B TYPE 2.00
POWER CORD ASS′Y UL1015 20AWG 2A FUSE BOX BSQ
BUSH NYLON66+GRASS 15％ SOLARIUM
PACKING ASS′Y - TCB550
1.00
1.00
1.00
Page 27
213 PART 714-M50NI-002 STAR WASHER-L M5 NI PLATING B TYPE 3.00
214 PART 801-C550-001 GIFTBOX(REV.01) 1.00
215 PART 804-C550-A01 INNER BOX A SW1E 2.0T BROWN(REV.01) 1.00
216 PART 804-C550-B02 INNER BOX B SW1E 2.0T BROWN(REV.02) 1.00
217 PART 807-C550-001 INNER PAD FOR INNER BOX A(REV.01) 1.00
218 PART 809-C550-001 OUT BOX DW1E 7.0T(REV.01) 0.10
219 PART 817-0520-000 POLYBAG PE 50X200 1.00
220 PART 817-0810-000 POLYBAG PE 80X100 1.00
221 PART 817-2230-000 POLYBAG PE 220X300 1.00
222 PART 820-C550-001 OWNERS MANUAL(REV.01) 1.00
223 PART 830-C550-001 NAME LABEL(REV.01) (PE 0.2T, 35X20mm) 1.00
224 PART 833-C550-000 CODE 39 SERIAL NO. STICKER (20X25mm) 2.00
225 PART 834-0001-000 WARNING LABEL 1.00
226 PART 834-0002-000 ROHS STICKER - TTI 0.10
227 PART 836-C550-000 LCD PROTECTIVE SHEET 1.00
228 PART 837-0001-000 OPP TAPE 50MM TTI LOGO 0.29
229 PART 838-0001-000 YELLOW STRAP 0.26
230 PART 83A-0001-000 SILICA GEL 1g 1.00
231 PART 905-C550-000 MICROPHONE ASSY - TCB550 1.00
Page 28
SECTION4 MECHANICAL DISASSEMBLY
Page 29
Page 30
SECTION5 BOARD LAYOUT
Main PCB (Top side)
Page 31
Main PCB (Bottom side)
Page 32
5-2 Front PCB (Top side)
Page 33
Front PCB (Bottom side)
Page 34
5-3 LED PCB (Top side)
Page 35
LED PCB (Bottom side)
Page 36
5-4 Volume PCB
Page 37
5-5 MIC PCB
Page 38
SECTION6 BLOCK DIAGRAM
Page 39
SECTION7 SCHEMATIC
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