SERVICE MANUAL

MULTI CHANNEL AM/FM TRANSCEIVER

TCB-880

TTI Tech

TABLE OF CONTENTS

SECTION SECTION 5 SECTION SECTION SECTION 5 5-1 5-2 5-3 5-4 5-5 SPECIFICATIONS CIRCUIT DESCRIPTION GENERAL TECHNICAL DESCRIPTION SEMICONDUCTORS AND FUNCTION DESCRIPTION OF FREQUENCY DETERMINING AND STABILIZING CIRCUIT TEST EQUIPMENT SETUP AND ALIGNMENT INSTRUCTIONS PART LIST MECHANICAL DISASSEMBLY BOARD LAYOUT MAIN PCB FRONT PCB LED PCB VOLUME PCB MIC PCB

SECTION SECTION

BLOCK DIAGRAM SCHEMATIC

SECTION1

SPECIFICATIONS
40 (See the frequency band chart) 26.96 MHz ~ 27.99125 MHz F3E (FM), A3E (AM) G PLL Synthersizer E 0.002% N E -10 to + 55 C R Plug-in Type A 13.2V DC 15% L 156 (W) x 176 (L) x 51(H) 990 g SO-239 type T Duty cycle 10% 4 Watts @13.8V DC R AM:from 85% to 95% A N FM:1.8KHz 0.2KHz S M Frequency Response 300Hz to 3000Hz I 50ohms, Unbalanced T Output Impedance T Harmonic Suppression More than -36dBm E AM Full Mod. 1.6A Max. R Current Drain Receiving System Dual conversion superheterodyne IF Frequencies Double Conversion 1st 10.695MHz/2nd 455KHz Sensitivity 0.7 V for 10dB(S+N)/N in AM Mode R 0.5 V for 20dB SINAD in FM Mode E C Audio Output Power 2.0W @ 8 Ohm Less then 8% @ 1KHz E Audio Distortion I Image Rejection 60 dB V Adjacent Channel Rejection 60 dB E R Conducted Spurious More than 60 dB Frequency Response 300 to 2500Hz Built-in Speaker 8 Ohms, round Squelch Adjustable; Threshold less than 1 microvolt * Specification is subject to change without prior notice.
Channel Frequency Range Operating mode Frequency Control Frequency Tolerance Operating Temperature Range Microphone Input Voltage Size Weight Antenna Connector Power Output Modulation

SECTION2

CIRCUIT DESCRIPTION
------------ Contents -------------
1 1-1. 1.2. 2. 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 3. 4. 4-1. 4-2. 4-3. 4-3-1. 4-3-2. 4-3-3. 4-3-4. 4-3-5 4-3-6. 4-3-7. 4-3-8. 4-3-9. 4-4. 4-5. 4-5-1. 4-5-2. 5. 5-1. 5-2. 5-3.
General Receiver Transmitter Technical Description General Type of emission Frequency Table RF Power Output DC input Voltage and Current with 13.2V DC Input to Power AMP Receiver IF and Local Oscillator Frequencies Semiconductors and Function Description of Frequency Determining and Stabilizing Circuit Introduction Basic Synthesis Scheme Descriptions of Each Block Introduction Reference Frequency VCO Programmable Divider and its Control Phase Detector and VCO Control Transmitter / Receiver Buffer AMP Transmitter Doublers Switching of Turning Capacitor in VCO Receiver Local Oscillator Outputs Frequency Stability Description of other Circuits Transmitter Receiver Test Equipment Setup and Alignment Instructions General Section Transmitter Section Receiver Section

1. 1-1.

General 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] Audio Output : 4.0 [W] (or More) Squelch : Adjustable from 0.3[uV] to 100 [uV] Sensitivity : - FM : 20 dB [SINAD] under 1.0 [uV] RF Signal or less - AM :10 dB [S/N] under 1.0 [uV] RF Signal or less Intermediate Frequency : - 1st IF : 10.695 [MHz] - 2nd IF : 455 [KHz] Transmitter Carrier Power(Conducted) : AM 1 [W] / FM 4 [W] Current Drain ( 13.2 [V] Supply Voltage) - No Modulation : 1,000 [mA] - Max Modulation : 1,400 [mA] Modulation Capabilities - AM : 90 [%] - FM : 1.8 [KHz/Dev] Spurious Radiation : Less then 74 [dBc] Antenna Impedance : 50 [OHM] Frequency Tolerance : 0.002 [%]

2. 2-1.

Technical Description General Model CB-880 is an mobile type AM/FM radio transceiver for use of the Citizen Radio Service. Front Panel Controls LCD (Cannel and RX/TX Signal Level Indicator). Receiver Audio Control (With Power ON/OFF Control) Volume Squelch Control Volume RF Gain Control Volume MIC GAIN Control Volume CHANNEL UP/DOWN Rotary Switch Q.CHANNEL UP/DOWN Rotary Switch Memory(M1, M2, M3, M4) Key DW(Dual Watch) Key EMG(Emergency Channel Select) Key AM/FM Select Key Scan Key CB/PA Slide Switch ANL/OFF Slide Switch LOCAL/DX Slide Switch Accessorily Connectors Antenna Socket External Speaker Jack External PA Jack External Signal Meter Jack Microphone(Condenser Microphone)
Type of emission : AM(A3E) , FM(F3E)
Frequency Table Channel Frequency (MHz) 26.965 26.975 26.985 27.005 27.015 27.025 27.035 27.055 27.065 27.075 27.085 27.105 27.115 27.125 27.135 27.155 27.165 27.175 27.185 27.205 Channel Frequency (MHz) 27.215 27.225 27.235 27.245 27.255 27.265 27.275 27.285 27.295 27.305 27.315 27.325 27.335 27.345 27.355 27.365 27.375 27.385 27.395 27.405

RF Power Output AM : 1.0 [W] FM : 4.0 [W] DC Iinput Voltage and Current with 13.2V DC Input to Power AMP Transmitter Power Amp : Voltage 12.5 V Current 727 mA Transmitter Driver Amp : Voltage 12.5 V Current 120 mA Receiver IF and Local Oscillator Frequencies First IF : 10.695 [MHz] Second IF : 455 [KHz] First Local Oscillator : 10.695 [MHz] Below Receiving Frequency Second Local Oscillation : 10.240 [MHz]
3. 3-1. Ref No. Q101 Q102 Q103 Q104 Q105 Q121 Q122 Q131 Q151 Q152 Q153 Q154 Q161 Q162 Q163 Q164 Q181 Q182 Q183 Q201 Q202 Q233 Q234 Q301 Q302 Q303 Q305 Q311 Q312 Q313 Q502 Q701 Q702 Q703 Q704 Q742 Q801 Q802 Q803 Q911 Q912 Q913 Q914 Q921 Q922 Q923 Q924
Semiconductors and Function Transistor Description KTC3880S KTK211 KTK211 KRC101S KRC101S KRC110S KRC112S KTC3875S KTC3875S KRC112S KRC101S KRC112S KTC3880S KTC3880S KRA102S KTA1504S KTC3875S KTC3875S KTC3875S KRC101S KRC202S KTA1504S KTC3875S KTC3880S KTC3880S KTC3880S KRC101S KRC101S KRC101S KRC101S KTC3875S KTC3880S KTC3880S KTC1006 2SC2078 KTC3875S KRC101S KRC101S KRA101S KTA1658 KRA1504S KRC112S KRC102S KTC3875S KRC112S KTC3875S KRA1504S Manufacturer 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 KEC KEC KEC SANYO KEC KEC KEC KEC KEC KEC KEC KEC KEC KEC KEC KEC Function RX Amplifier 1st Mixer 1st Mixer RX Band1 Switching RX Band2 Switching RX RSSI Level Control Squelch RX FM AF Amplifier FM AF Mute at AM Mode FM AF Mute at AM Mode RX AF Mute at TX Mode AM IF Amplifier AM IF Amplifier RX AM B+ Automatic Noise Level Control RX RF Mute at TX Mode AGC AGC AF Mute AF Path Automatic Level Control Automatic Level Control VCO RX/TX VCO Buffer VCO Buffer TX VCO Control RX Band1 Switching RX Band2 Switching RX Band3 Switching FM TX AF Mute at AM TX TX Doublers TX Pre-Amplifier TX Driver Amplifier TX Power Amplifier TX RF Mute at RX Mode CPU Reset CPU RX/TX Control MIC Lock Control Main Regulator Main Regulator Main Regulator Control Power Low Control 8.2V Regulator 8.2V Regulator Mute at PA Mode RX B+ TX B+
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Q941 Q942 Q951 Q952 Q953 Q954 Q961 Q962 Q963 3-2. Ref No. IC101 IC102 IC201 IC301 IC401 IC801 IC802 3-3. IC
KRC111S KRC112S KTA1241 KTA1241 KRC101S KRC101S KRC110S KRC111S KRC111S
KEC KEC KEC KEC KEC KEC KEC KEC KEC
Mute TX B+ Mute at TX Mode Back Light LED Control Back Light LED Control Back Light LED Control Back Light LED Control TX AF Mute at RX Mode MIC AF Path at AM Mode MIC AF Path at PA Mode
--------------------------------------------------------------------------------------------------------------------------------------------
Description TK144889V KIA358F KIA7217AP LC7152NM KIA4558F TMP87PP21DF 24WC02 Manufacture Information KEC SANYO TOKO TOSHIBA ATMEL
Manufacturer TOKO KEC KEC SANYO KEC TOSHIBA ATMEL
Function IF IC AGC, Squelch Control AF Power Amplifier PLL FM TX AF CPU EEPROM
----------------------------------------------------------------------------------------------------------
KEC Co., LTD. SANYO Semiconductor Co., LTD. TOKO, Inc. Toshiba Semiconductor. Co., LTD. ATMEL Co., LTD

4. 4-1.

Description of Frequency Determining and Stabilizing Circuit Introduction
The Frequencies for transmitter and receiver first local frequencies are all derived from a signal 4.5MHz crystal by means of a phase locked loop(PLL). 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 Q701, L701, L702 with doubles the frequency to generate 26.965MHz(CH1) to 27.405MHz(40CH). Q302 VCO 13.4825MHz(CH1) ~ 13.7025MHz(CH40) Q701 Doublers 26.965MHz(CH1) ~ 27.405MHz(CH40)

To transmitter

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 Q102, Q103. 4-2. Basic Synthesis Scheme
The crystal frequency(4.5MHz) is divided by 1800 times 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 9, 10 of IC301. Passing the phase detector output closes the feedback loop through an active low pass filter and using the output to control the VCO frequency through varicap diode D301. Under locked conditions, both of phase detector input signal must be identical at 2.5KHz. The VCO frequency is then given by ; Receiver Transmitter : Fvco / N = 0.005 [MHz] OR Fvco = 0.005 X N [MHz] : 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 in receiver mode 5KHz and transmitter mode 2.5KHz increments. By suitable choice of N the desired output frequency can be obtained. Channel 1 N Transmit Receiver Fvco 13.4825 16.2700 N Channel 40 Fvco 13.7025 16.7100
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

Transmit ------Transmit

CH 1 , 13.4825 MHz

26.965 MHz

CH 40 , 13.7025 MHz

27.405 MHz

Since all frequencies are obtained from the crystal controlled PLL oscillator, all outputs are coherent with the crystal oscillator frequency and matching the sample percentage accuracy. Note that the reference frequency of 5KHz(receiver) and 2.5KHz(transmitter) is obtained by dividing the 4.5MHz by 900 times and 1800 times See Table 1 for transmitter/receiver mode VCO frequencies.
Program Data & Frequency[Table 1] Channel Frequency [MHz] 26.965 26.975 26.985 27.005 27.015 27.025 27.035 27.055 27.065 27.075 27.085 27.105 27.115 27.125 27.135 27.155 27.165 27.175 27.185 27.205 27.215 27.225 27.255 27.235 27.245 27.265 27.275 27.285 27.295 27.305 27.315 27.325 27.335 27.345 27.355 27.365 27.375 27.385 27.395 27.405 RX N Fvco 16.27 16.28 16.29 16.31 16.32 16.33 16.34 16.36 16.37 16.38 16.39 16.41 16.42 16.43 16.44 16.46 16.47 16.48 16.49 16.51 16.52 16.53 16.56 16.54 16.55 16.57 16.58 16.59 16.60 16.61 16.62 16.63 16.64 16.65 16.66 16.67 16.68 16.69 16.70 16.71 N TX Fvco 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

4-3. 4-3-1.

Descriptions of Each Block Introduction
The synthesizer is implemented with the following components; PLL IC (IC301) X-TAL (X301) VCO, VARICAP DIODE (D301) IC1301 is CMOS LSI that includes most of PLL block. The Q301, L301, C311, C312, C313, C314, varicap diode D301 are clap oscillator circuit to operate as a VCO of the IC301. Q305 is a switching transistor to connect or disconnect the tuning capacitor in the VCO oscillator tank circuit for transmitter or receiver. Q302 works as a buffer amplifier for RX local frequencies ( 16MHz) and TX carrier generating frequencies( 13MHz) 4-3-2. Reference Frequency

The crystal X301(4.5MHz) and other components at Pin 1 and 24 of IC301 can make a reference frequency oscillator with internal amplifier. 4-3-3. VCO
Q301 and surrounding parts are consisting a clap oscillator works as a VCO of IC301. With appropriate control voltage on D301 the VCO can be oscillate over the required range of 13.4825MHz to 16.710MHz. 4-3-4. Programmable Divider and its Control
The programmable input for each channel are stetted by the PLL Clock(Pin 11), PLL Data(Pin 12), PLL Enable(Pin 13) of IC801. Each input signal to control the PLL ic is done with provide key input Pin 18, 19, 25, 26, 27, 28, 29, 32, 33, 34, 35, 37. For each key input, an internal code converts EEPROM appropriate control to the programmable divider for that channel. Since the change transmit and receive, and additional bit is required at Pin 8 of IC801 to allow the ROM to recognize the status TX or RX. During transmit the push to talk switch makes Pin 8 ground with BRT(Q802), PLL IC works under transmit status. The programmable divider output fed to the phase detector for compare with the 2,5KHz reference frequency IC301. 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 witch compares the phase of the reference signal with 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 low pass filter output signal of IC301 is filtered and fed to varicap D301 control the VCO frequency. 4-3-6. Transmitter / Receiver Buffer AMP
Output signal of Q301 is fed into the buffer amplifier Q302, L302 to generate TX carrier frequency and 1st local frequencies.

4-3-7.

Transmitter Doublers
The output signal of Q302, L302 goes to an amplifier with tuning circuit Q701, L701, L702 which doubles incoming 13MHz signals. 4-3-8. Switching of Turning Capacitor in VCO
The VCO circuit must tune with a wide range of frequencies 13.4825MHz ~ 13.7025MHz for transmitter and 16.27MHz ~16.71MHz for receiver. To comply above range of VCO, the tuning capacitance should switch for transmission. The tuning circuit consists with L301, C311, C312, C313, and C314. When the VCO is working as a receiver Q305 becomes turn OFF. So, L301 and C311, D301 makes turning function. When transmitting, Q305 becomes ON. S the o, L301 an parallel capacitance of C316 and C311 make turning function. 4-3-9. Receiver Local Oscillator Outputs

4-5-2.

Receiver Overload protection is provided to receivers semiconductors by diode D101. These diodes have a little effect on the incoming signal from another CB station; they protect the receiver from stray transmitter energy. In the receiver mode of operation, Q923 transistor is turned on. Also bias voltage is applied to Q101, Q102, Q103, Q106. Q101 is a 27MHz RF input amplifier, and any excessive input signal is limited by diode D101. CB receiver is dual conversion super-heterodyne type with the first IF 10.695MHz and the second IF 455KHz. Receiver is separated to blocks, 1st IF section and 2nd IF section. The PLL synthesizer supplies 1st local frequency 16.270MHz ~ 16.710MHz. The amplified 27MHz is mixed. With the provide 1st local frequencies Q102, Q103 mixes the incoming RF signal to generate 1st IF signal. The resulting first IF is 10.695MHz. Q102 and Q103 is the first converter, and 10.695MHz is sharply filtered by L108 and crystal filter CF101. The first IF is again mixed with a second local oscillator of 10.24MHz. With the 10.240MHz signal, IC101 FM IF IC converts the incoming signals to generate 2nd IF signal and recovered audio signals. 2nd IF is filtered by a razor sharp ceramic filter CF101 coupled. The 455KHz signal from the 2nd IF filter was amplified and limits internally. After amplification the signals fed to the quardrature detector loop L109. Then could see the recovered signals Pin 11 of IC101. With the amplitude of recovered signals, Q151 serves as an amplifier. AM signals from the Pin 6 of IC101 were tapped with C161 and amplified two-stage amplifier Q161, Q162. Q161 is a first 455KHz amplifier, and the Q161 being the last amplifier. D106 is a detector diode witch produce audio signal as well as negative DC voltage for AGC action. The negative voltage also provides forward biasing to the emitter of ANL clipping transistor Q164. The biasing voltage has a time constant determined R174 and C176. Therefore any sharp negative going pulse from D161 will back bias Q164 and clipped. The way to recover the AM information audio is envelope detector.

5. 5-1 5-1-1

Test Equipment Setup and Alignment Instructions General Section Test Equipment Required
DC power supply(13.8V/3A) DC Voltmeter or Oscilloscope RF attenuator (30dB) 5-1-2 Step 1 Alignment Procedure Setting RX VCO voltage Adj. Channel & Frequency : 1CH, 26.956 MHz Mic : Receive Volume : Optional Squelch : Optional RF Gain : Optional Mic Gain : Optional TX VCO voltage Adj. Channel & Frequency : 1CH, 26.956 MHz Mic : Transmit(No Mod) Volume : Optional Squelch : Optional RF Gain : Optional Mic Gain : Optional Connection DC voltmeter to VCO Test point (Figure 1) Adjuster L301 Adjust for 1.5~2.0 V DC
DC voltmeter to VCO Test point (Figure 1)

1.5~2.0 V DC

Figure 1

5-2 5-2-1

Transmitter Section Test Equipment Required DC power supply(13.8V/3A) Spectrum analyzer Frequency counter Coupler Modulation meter

RF Power Meter 50 ohms load (non-inductive) RF attenuator (30dB) Oscilloscope Audio generator 5-2-2 Alignment Procedure Step 1 Setting RF Power Adj. Channel : 19CH Function : AM or FM Mode CB/ANL Off/DX MIC : Transmit Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Minimum Frequency Adj. Channel & Frequency : 19CH, 26.956 MHz Function : AM or FM Mode CB/ANL Off/DX Mic : Transmit(No Mod) Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Optional AM Modulation Adj. Channel & Frequency : 19CH, 27.185MHz MIC: Transmit Function : AM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Max
Connection Connect dummy load and RF Power Meter to the EXTANT connector on the set(Figure 3)
Adjuster L302 L701 L702 L703
Adjust for Maximum indication on the Power Meter(4.0W). If indication is not in 4W range, ACP Adjustment(R V911) Be sure that the indication of the transmitter frequency is 27.185MHz 300 Hz on the Frequency Counter 85% ~ 95%
Connect dummy load and Frequency Counter through Coupler to RF Power Meter. Connect RF Power Meter to EXT-ANT connector on the set(Figure 2).
Connection the audio generator (set to 1 KHz)to the microphone. Connect the modulation meter through the RF attenuator to the ANT Connector. Adjust the audio signal level to obtain by 50% modulation. When you increase the audio signal by 20 dB, the modulation should not exceed 95% Modulation(Figure 3).
FM Deviation Adj. Channel & Frequency : 19CH, 27.185MHz MIC : Transmit Function : FM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Max
Connection the audio generator (set to 1 KHz)to the microphone. Connect the modulation meter through the RF attenuator to the ANT Connector. Adjust the audio signal level to obtain by 1KHz deviation. When you increase the audio signal by 20 dB, the deviation should not exceed 2.0KHz deviation(Figure 3). Connected through Dummy load to RF Power Meter. Connect RF Power to EXTANT connector on the set(Figure 2)

1.8KHz ~ 2.0KHz

TX Signal Meter Adj. Channel & Frequency : 19CH, 27.185MHz MIC : Transmit Function : FM Mode CB/ANL Off/DX Volume : Optional Squelch : Optional RF Gain : Optional MIC Gain : Minimum
Adjust for 4 watts RF output power on the signal meter.

Figure 2

Figure 3

5-3 5-3-1

Receiver Section Test Equipment Required
Standard Signal Generator(SSG) DC power supply(13.8V/3A) AC Level Meter Distortion Meter Oscilloscope SINAD Meter 8 ohm Dummy Load 5-3-2 Step 1 Alignment Procedure Setting AM Audio Output Adj. Channel & Frequency : 19CH, 27.185MHz MIC : Receive Function : AM Mode CB/ANL Off/DX Volume : Full clockwise Squelch : Turn to counter clockwise RF Gain : Full clockwise FM Audio Output Adj. Channel & Frequency : 19CH, 27.185MHz MIC : Receive Function : FM Mode CB/ANL Off/DX Volume : Full clockwise Squelch : Turn to counter clockwise RF Gain : Full clockwise Squelch Adj. Channel & Frequency : 19CH, 27.185MHz MIC : Receive Function : FM Mode CB/ANL Off/DX SSG : 27.185MHz, 1KHz, 100uV, 1.5KHz Dev. Volume : Full clockwise Squelch : Full clockwise clockwise RF Gain : Full clockwise Connection Connect RF Signal Generator to EXT-ANT Connector. Connect AC Level Meter and Distortion Meter and SINAD Meter across EXT SPK jack with 8 ohm Dummy Load(Figure 4) Adjuster L101 L103 L104 L105 L107 L108 L112 Adjust for Maximum indication on AC Level Meter. Reduce output from SSG until the audio output becomes about 2V. Maximum indication on AC Level Meter. Reduce output from SSG until the audio output becomes about 2V. Adjust until the audio output appears.

R400 VR101 VR103, VR401 VR102 SW811 L501, L502, L504, L506 J103, J104 J103 --- J104 J101 J101 --- J102 J502 J501
ECO041217-03 ECO041217-03 ECO041217-03 ECO041217-03

ECO041215-01

ECO050321-01

CHIP RESISTOR

1/16W 5% T 1608

PHILIPS

CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL CHIP TRANSISTOR CHIP TRANSISTOR CHIP TRANSISTOR LED VOL BACK LIGHT IC EEPROM IC CPU
0.01UF 1UF 68PF 10uF/16V KRA101S KRC101S KRC104S CHIP LED AT24C02 TMP87PP21DF
1608 A TYPE SOT-23 SOT-23 SOT-23 IWS-164-BXWF
PHILIPS PHILIPS PHILIPS KEC KEC KEC ITSWELL ATMEL TOSHIBA
SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD
LCD DISPLAY SW TACT SW SLIIDE RESONATOR MAIN BODY ASS'Y
SDMA2295B SKTS-1102A SKS-22021T 4.0MHz

FOR TCB-880

SANTECH SEKWANG SEKWANG SEKWANG SEKWANG D.TRON

MAN MAN MAN MAN

LCD801 SW801, SW802, SW803, SW804, SW805, SW806, SW807, SW808 SW101, SW102, SW201 X801

ZTA4.00MG

D.TRON
CONNECTOR TRANSISTOR TRANSISTOR IC POWER CODE MAIN PCB AUTO ASS'Y
CH-239(A)-M KTA1658 2SC2078 KIA7217AP 2PIN PLUG ASS'Y
SAMWOO KEC SANYO KEC FINE

YANG WON FINE

MAN MAN MAN MAN MAN
J701 Q911 Q704 IC201 J900
PCB MAIN CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR
FR-4 / R-100 1K 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608
MULTI PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS

SMD SMD SMD SMD SMD SMD

R108, R137, R201 R706 R133, R301 R104, R109, R134, R168, R314, R401 R126, R164, R182, R183, R187, R200, R222, R234, R238, R308, R312, R410, R501, R571, R572, R955, R956, R957, R958 R123, R157, R161, R185, R315, R321, R322, R323, R324, R412, R413, R414, R703, R821, R823, R914 R140, R142, R159, R186, R188, R202, R233, R309, R311 R405 R181 R742, R924 R155, R166, R235 R701 R711 R169, R702 R01, R131, R203, R237, R307, R402, R817, R822, R912, R922, R923, R961, R963 R132, R162, R172, R175, R302, R304, R305 R171, R177 R153 R167 R102, R403 R204 R404, R407 R135 R156 R163, R306 R184, R705, R913
ECO050809-02 ECO050328-01

ECO050408-02

ECO050418-02 ECO050715-01
CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR

2M 1.2K 1.5K 15K 150K 2.2.2K 22K 220K 2.2M 2.7K 27K 33 33K 3.3M 390 39K 47
1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608
PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS
SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD
ECO050422-01 ECO050715-01

ECO050422-01

CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR THERMISTOR THERMISTOR CHIP CERAMIC
470 4.7K 47K 470K 5.6K 56K 6.8K 68K 82K 100 OHM 10K OHM 0.001UF
1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 1/16W 5% T 1608 NCP18XF101J03RB NCP18XH103J03RB 1608
PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS PHILIPS MURATA MURATA PHILIPS/SAMSUNG
SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD SMD
R101, R105, R106, R165, R236, R931 R138, R223, R406, R704, R915, R916, R962 R122, R139, R174, R176, R300, R303, R409, R411, R415 R154, R573 R408 R103, R313 R152 R189 R173 TH131 TH101 C181, C230, C239, C404 C111, C114, C115, C116, C117, C118, C153, C154, C156, C157, C161, C162, C183, C184, C201, C231, C234, C235, C323, C412, C415, C501, C502, C503, C504, C506, C703, C704, C708, C713, C901, C902, C903, C911, C922, C924, C932 C122, C123, C132, C134, C135, C137, C138, C168, C169, C180, C186, C205, C229, C236, C308, C322, C325, C330, C405, C413, C571, C573 C159, C401, C402, C961, C962 C166, C203, C214, C238, C403 C152, C163, C164, C165, C212, C310, C721, C914 C410 C96, C113, C324 C101, C109, C303, C304, C305, C313, C314, C711, C712, C731 , C733 C102, C104, C106, C311 C316 C112, C119 C701, C734 C730 C312, C727 C204, C211, C329, C717, C719, C724 C319 C315 C108, C302, C318 C714, C715, C723, C725, C726, C729 C705 C110 C103, C105, C107, C182, C328, C720, C722 C718 C130 ECO050422-01 ECO050812-01 ECO041215-01 ECO050525-02 ECO041215-01 ECO050422-01 ECO050408-02 ECO050418-02 ECO050715-01 ECO050715-04

ECO050328-01

FINE FINE FINE FINE FINE FINE FINE FINE FINE FINE FINE
171 COIL SPRING 172 COIL SPRING 173 COIL SPRING 174 COIL SPRING 175 COIL SPRING 176 COIL SPRING 177 CORE SPRING 178 COIL CHOKE 179 TRANSISTOR 180 TRANSISTOR 181 DIODE 182 DIODE 183 CRYSTAL 184 CRYSTAL 185 FILTER CRYSTAL 186 FILTER CERAMIC 187 JACK MINI 188 JACK DC 189 WAFER 190 WAFER 191 WAFER 192 SW ROTARY

FINE FINE FINE FINE

FINE FINE FINE FINE FINE FINE FINE FINE
0.225UH 0.5UH BOBBIN CORE
FINE FINE FINE FINE KEC KEC PYUNGCHANG
32PF:30PPM 12PF:30PPM 10.695MHZ
HC-49/U HC-49U 49/T-3L SEKWANG SEKWANG
SEKWANG SEKWANG FINE FINE FINE SEJIN
PH-2A 180C PH-6A 180C PH-16A 180C SJ-PS2101 20SK

FINE FINE FINE SEJIN

Mechanical PARTS * COVER ASS'Y ESCUTCHEON ESCUTCHEON WINDOW ABS (SILVER SPRAY) ABS (BLACK SPRAY) Bonso 1 Bonso 1 Front case plastic
VOL KNOB ABS (SILVER SPRAY) VOL KNOB ABS (BLACK COLOR) SQ KNOB ABS (SILVER SPRAY) SQ KNOB ABS (BLACK COLOR) ILLUMINATOR(VOL) ACRYL, CLEAR ILLUMINATOR(CH) ACRYL, CLEAR ILLUMINATOR(SQ) ACRYL, CLEAR ILLUMINATOR(PA) ACRYL, CLEAR KEY PAD 6 SILICONE, Hs=60, PU Coating KEY PAD 2 SILICONE, Hs=60, PU Coating RING NUT BsBm, Ni plating SCREW MACH(+) M2.6*5L, NATURAL, FH ECO 050328-06 ECO 050328-06
Bonso Bonso Bonso Bonso Bonso Bonso Hankyung Hankyung Hankyung Bonso Bonso Bonso Hankyung Hankyung Hankyung Bonso Hankyung Hankyung Hankyung Hankyung same as item.18 same as item.18 Bonso Bonso Bonso Bonso Hankyung Hankyung ECO 050103-01 Hankyung Hankyung Bonso Hankyung Hankyung Hankyung Hankyung ECO 050302-02 Hankyung Hankyung Hankyung Hankyung ECO 050103-01 ECO 050412-02 same as item.18 Hankyung Bonso Bonso Bonso Bonso ECO 050328-02 ECO 050328-02 Hankyung Bonso Bonso
For Vol & Ch For Sq, Rf, Mic gian, Q up/down For Vol For Ch For Sq, Rf, Mic gian, Q up/down For Pa/off/dx For Vol Escutcheon + Main body mounting For Vol For Sq illuminator & Ch illuminator For upper cover adhesive(location: side) For upper cover adhesive(location: center) Upper cover + Main body mounting For speaker For speaker For bottom cover adhesive(location: side) Bracket(spk) mounting
Bottom cover + Main body mounting(location: back)
13 Vol illuminator sticker wood free paper, 58*7*0 ECO 050328-Sq illuminator sticker wood free paper, 46*7*0. ECO 050328-02 * UPPER COVER ASS'Y 17 UPPER COVER SPC+BLACK coating FELT(COVER) 8*146*0.3t, BLACK CUSHION 20*24*4.0t, EVA SPONGE, BLACK

18 SCREW Mach(+) M3*8L-TAPTITE, BLACK, B ECO 050103-01 * BOTTOM COVER ASS'Y BOTTOM COVER SPC+BLACK coating BRACKET(SPK) SPC, 1.6t FELT(SPK) 76*0.2t, BLACK FELT(COVER) 8*146*0.3t, BLACK M3*8L-TAPTITE, BLACK, B ECO 050319-01 M3*8L-TAPTITE, BLACK, B ECO 050103-01
23 SCREW Mach(+) 24 SCREW Mach(+) * FRONT PCB ASS'Y 29 30
REFLECTOR(HOLDER) ACRYL DIFFUSER ACRYL, 45.8*19.3*2.4t LCD HOUSING WHITE SHEET SPTE, 0.3t
For diffuser For diffuser For diffuser For diffuser For diffuser Front Pcb mounting For Main PCB(location: lower) For Main PCB(location: upper) For Vco For TX shield can(2) For TR For Antenna For TR Main PCB + Main body mounting TR mounting TR mounting TR mounting Wire stopper For TX shield can(1) For TX shield can(1)
ZEBRA 30*9.2*2.0t, CARBON SILICONE FELT(S/W) 4.5*17*0.3t, BLACK
31 SCREW Mach(+) * MAIN PCB ASS'Y 46 47
M2.6*8L-TAPTITE, Ni plating ECO 050103-01
MAIN BODY EGI, 1.0t HEAT SINK AL, 2.0t TX SHIELD CAN(1) TX SHIELD CAN(2) SPTE, 0.3t SPTE, 0.3t
VCO SHIELD CAN SPTE, 0.3t SHIELD COVER SPTE, 0.3t BUSH NYLON66+GRASS 15% ANT. TERMINAL SPTE, 0.2t MICA MICA, 0.6t SCREW Mach(+) 3*8L-TAPTITE, Black, BH SCREW MACH(+) M3*10L, Black, BH SPRING WASHER M3 NUT M3, SS41 CORD STOPPER PP Cu Tape-1 Cu 63.6*9*0.1t Cu Tape-2 Cu 77*15*0.1t
* ACCESSORY MIC ASS'Y BRACKET SET STUD BOLT ABS, M6*8L, BLACK SUS304, 1.0t PACKING RUBBER M3*8L, Taptite, Black, BH 5*12L-1S, ZN PLATING, TH M3, NI PLATING, B type M5, NI PLATING, B type 2PIN RECEPRACLE ASS'Y BRACKET(MIC) SCREW Mach(+) SCREW TAP(+) STAR WASHER-S STAR WASHER-L POWER CODE ECO 050103-01 Hankyung Hankyung Hankyung Hankyung Hankyung Bonso Bonso Bonso Bonso FINE 3 1

PACKING RUBBER

* PACKING ASS'Y 13 OWNER'S MANUAL GIFTBOX SW1E 2.0T INNER BOX A SW1E 2.0T, WHITE for RADIO INNER BOX B SW1E 2.0T, WHITE for ACCESSORY WARNING LABEL CODE 39 SERIAL NO. STICKER OUT BOX DW1E 7.0T SILICA-GEL 1g OPP TAPE 50MM COLOR TYPE STICKER S COLOR TYPE STICKER B POLY BAG for RADIO 220*300mm POLY BAG for ACCESSORY 80*100mm POLY BAG for POWER CODE 50*200mm for SILVER UNIT for BLACK UNIT BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO BONSO 1 1

SECTION4

MECHANICAL DISASSEMBLY

NO 57 58

PART NAME Upper cover Bottom cover Bracket (Set) Escutcheon Vol knob Sp knob illuminator (vol) illuminator (sq) Ring nut Nut for Mic connector Washer for Mic connector Key pad-6 Key pad-2 Felt (s/w) Screw Mach (+) Window Main body Speaker Bracket (spk) Felt (cover) Felt (spk) TX shield can (2) Shield cover Stud bolt Packing rubber TX shield can (1) VCO shield can Main PCB Front PCB Screw Mach(+) Washer for Ant connector Nut for Ant connector Ant terminal Mica Cushion Screw Mach(+) Screw Mach(+) Cord stopper LCD Bracket Bush Spring washer Nut Screw Tap (+) illuminator (ch) illuminator (pa) Screw Mach(+) Heat sink Mic connector Ant connector S/W PCB Cu tape-1 Cu tape-2 Zebra White sheet Diffuser Lens Reflector LCD TR

DESCRIPTION SPC 0.8t SPC 0.8t SPC 1.6t ABS ABS ABS Acryl Acryl BsBm
Silicone Silicone 0.3t M2.6x8L_taptite,BH Acryl EGI 1.0t SPC 1.6t 0.3t 0.3t SPTE 0.3t SPTE 0.3t ABS SPTE 0.3t SPTE 0.3t M3x8L_taptite,BH SPTE 0.2t 0.4t EVA sponge M3x8L_taptite,BH M2.6x5L,FH PVC SPTE 0.3t Nylon66+Grass15% M3 M3 M3x8L_taptite,BH Acryl Acryl M3x10L,BH AL
Silicone PE, 0.1t Acryl Acryl

QTY 1 1

REMARK

For front pcb

For speaker For escutcheon For TR For TR For TR For cover For TR For TR

SECTION5

BOARD LAYOUT

5-1 Main PCB (Top side)

Main PCB (Bottom side)

5-2 Front PCB (Top side)

Front PCB (Bottom side)

5-3 LED PCB (Top side)

LED PCB (Bottom side)

5-4 Volume PCB

5-5 MIC PCB

SECTION6

BLOCK DIAGRAM

SECTION7

SCHEMATIC