How it Works
HYT
Loading...
TC-700 EX PLUS
Service Manual
85 pgs1.06 Mb0
Service Manual
76 pgs3.11 Mb0
User Manual
31 pgs884.46 Kb0

HYT TC-700 Ex PLUS Service Manual

IN TR IN SI CA LLY S AF E
81 370 0EX 001 00 20 07- 01- 20
TC-700 Ex PLUS Service Manual
1
Contents
Circuit Description------------------------------------------------------------------------------------------10
CPU Pins-----------------------------------------------------------------------------------------------------15
Parts List 1----------------------------------------------------------------------------------------------------18
Adjustment Description------------------------------------------------------------------------------------48
Troubleshooting---------------------------------------------------------------------------------------------53
Disassembly and Assembly------------------------------------------------------------------------------57
Exploded View-----------------------------------------------------------------------------------------------59
Parts List 2----------------------------------------------------------------------------------------------------60
Packing--------------------------------------------------------------------------------------------------------62
Exploded View (ATEX-approved Battery)-------------------------------------------------------------63
Parts List (ATEX-approved Battery)--------------------------------------------------------------------63
TC-700 Ex PLUS VHF PC Board View Top Layer--------------------------------------------------64
TC-700 Ex PLUS VHF PC Board View Bottom Layer---------------------------------------------65
TC-700 Ex PLUS UHF PC Board View Top Layer--------------------------------------------------66
TC-700 Ex PLUS UHF PC Board View Bottom Layer---------------------------------------------67
TC-700 Ex PLUS Level Diagram------------------------------------------------------------------------68
TC-700 Ex PLUS Block Diagram-----------------------------------------------------------------------69
TC-700 Ex PLUS VHF Schematic Diagram(RF) ---------------------------------------------------70
TC-700 Ex PLUS VHF Schematic Diagram (Baseband & AF Amplifier)----------------------71
TC-700 Ex PLUS UHF Schematic Diagram(RF) ---------------------------------------------------72
TC-700 Ex PLUS UHF Schematic Diagram (Baseband & AF Amplifier)----------------------73
Specifications------------------------------------------------------------------------------------------------74
TC-700 Ex PLUS Service Manual
2
General
Manual Scope
This manual is intended for use by experienced technicians familiar with similar types of communication equipment. It contains all service information required for the equipment and is current as of the publication date. HYT endeavors to achieve the accuracy and completeness of this manual, but no warranty of accuracy or reliability is given. All the specifications and design are subject to change without prior notice due to continuous technology development. Changes which may occur after publication are highlighted by Revision History contained in Service Manual. No part of this manual may be copied, reproduced, translated, stored in a retrieval system, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of HYT.
Safety and General Information
Any person using the radio must observe the standard safety regulations and read the certificate to prevent incorrect operation or abuse of the radio. The following additional safety regulations must also be observed:
Unauthorized modification of the radio may result in termination of Ex-protection.Unauthorized service or repairs are inhibited.Do not disassemble theATEX-approved intrinsically safe products.The radio must not be opened in a hazardous area.The battery must only be changed in a non hazardous area.Additional or spare batteries must not be carried into a hazardous area.Use only the Ex-battery BL1703-Ex specified by HYT. The use of other batteries is strictly
prohibited and will result in termination of Ex-protection.
The battery must only be charged in a non hazardous area with the designated charger
CH10L11-Ex.
Use only HYT approved accessories.Ensure that the radio is not taken into Zone 0 areas.To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any
facility where posted notices instruct you to do so. Hospital or health facilities may be using equipment that is sensitive to external RF energy.
When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must
be in accordance with airline regulations or crew instructions.
To avoid possible interference with blasting operations, turn off your radio when you are near
electrical blasting caps, in a blasting area, or in areas posted: “Turn off two-way radio.”Obey all signs and instructions.
For vehicles with an air bag, do not place a radio in the area over an air bag or in the air bag
deployment area.
Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into
contact with your skin, a minor burn can result.
Do not expose the radio to direct sunlight over a long time, nor place it close to heating source.
TC-700 Ex PLUS Service Manual
3
WARNING: Failure to use an ATEX-approved Product unit with an ATEX-approved battery or ATEX-approved accessories specifically approved for that product may result in the dangerously unsafe condition of an unapproved radio combination being used in a hazardous location.
ATEX-Approved Intrinsically Safe Radio Information
ATEX-Approved Intrinsically Safe Radio
Certification
ATEX-approved Intrinsically Safe
ZELM 06 ATEX 0321
ATEX (Atmospheres Explosibles) Directive 94/9/EC
Introduced in 2003, this is the European Union directive to which all two-way radios must conformif used in potentially explosive environments. It replaces the Cenelec classification in all European Union member states and EFTA countries. All HYT professional series ATEX portable radios are approved to ATEX Protection Classes II 2 G EEx ib IIB T3 and II 2D IP64 T160°C as interpreted in the following tables:
ATEX Gas Protection:
ATEX Dust Protection:
TC-700 Ex PLUS Service Manual
4
Radio Overview
1. PTT (Push-to-Talk) Key Press and hold down the PTT key to transmit, release it to receive.
2. SK1 (Side Key 1) (programmable)
3. SK2 (Side Key 2) (programmable)
4. Antenna
5. Microphone
6. Speaker
7. TK (Top Key) (programmable)
8. Channel Selector Knob Rotate the knob to select from channel 1 to 16.
9. Radio On-Off/Volume Control Knob Rotate the knob clockwise to turn the radio on, rotate the knob fully counter-clockwise until a “click” is heard to turn the radio off. Turn the knob clockwise to increase the volume, or counter-clockwise to decrease the volume.
10. LED Indicator Table below explains the functions of the LEDs and beeps.
11. Accessory Jack
12. Battery Latch
13. Belt Clip
14. Accessory cover
15. Battery
16. Screw
17. Electrode Piece
TC-700 Ex PLUS Service Manual
5
Wired Cloning Source radio: Turn the source radio on while
holding down the PTT and SK2. Slave radio: Rotate the On-Off/Volume Control knob clockwise to turn the slave radio on.
The orange LED flashes twice.
Source radio (power on the slave radio and connect the cloning cable, then press the PTT of source radio to initiate cloning.)
1) LED solidly glows red when cloning progress;
2) LED goes out when cloning is finished;
3) LED flashes red when cloning fails.
Slave radio 1) LED solidly glows green when
cloning progress;
2) LED goes out when cloning is
finished. Wireless cloning
Turn on both the source radio and slave radio while holding down the PTT and SK1. Both radios are required to be on the same channel for cloning.
The orange LED flashes once.
Source radio (turn on both the source radio and slave radio while holding down the PTT and SK1, then press the PTT of source radio while both radios are on the same channel to initiate cloning.)
LED solidly glows red when cloning progress.
Slave radio 1) LED solidly glows green when
cloning progress;
2) LED flashes green and radio sounds beep tone, when cloning is finished;
3) LED flashes red when cloning fails.
Power On The green LED flashes once. Low Battery Alert LED flashes red, and radio sounds
three beeps every 30 seconds. Transmitting LED glows red Receiving LED glows green when carrier
presents. Scanning Green LED flashes once every 1
second. Programming Reading: LED glows red;
Writing: LED glows green. Encoding (DTMF/PTT ID/2-Tone (5-Tone)/HDC1200/HDC2400TM)
1) LED glows red while transmitting;
2) LED glows orange when transmission ends.
TC-700 Ex PLUS Service Manual
6
Decoding (2-Tone (5-Tone)/HDC1200/HDC2400TM) Orange LED flashes after the
signalling is successfully decoded.
Select Power Level 0.5W: One beep is heard;
1.5W: Two beeps are heard;
3W: Three beeps are heard.
Function Key Press One beep to enable, two beeps to
disable.
Software Specifications
Specifications
Conventional Mode
1. Mechanical Selector Knob (16 channels) VHF: 136-174 MHz UHF: 420-470 MHz
2. Channel Spacing: 25/20/12.5KHz (programmable)
3. Step: 2.5/5/6.25KHz
4. LED Indicator: Red/Green/Orange
5. 3 Programmable Function Keys
6. CTCSS/CDCSS Encode & Decode
7. DTMF Encode
8. 2-Tone (5-Tone) Encode & Decode
9. HDC2400TMEncode & Decode
10. HDC1200 Encode & Decode
11. Squelch Mode:
1) Carrier
2) CTCSS/CDCSS
3) Optional Signalling
4) CTCSS/CDCSS AND 2-Tone (5-Tone)/ HDC2400TM/HDC1200
5) CTCSS/CDCSS OR 2-Tone / HDC2400TM/HDC1200
12. Scan
13. Time-Out-Timer (TOT)
14. Rental
15. Battery Save
16. Emergency
17. PTT ID
18. Busy Channel Lockout (Tx Admit Criteria)
Description
1. User Mode
This mode is for normal operation.
2. All Reset Mode
Firstly ground the SELF point, and then turn the radio on while holding down TK key for 2 seconds. The radio enters all reset mode with green LED flashing twice. Turn the channel selector knob to the selected channel and press PTT, the radio data is all reset (All clone modes will be automatically activated when
TC-700 Ex PLUS Service Manual
7
All Reset is completed). Frequency settings are shown as follows:
Selected Channel
Frequency Band(MHz)
F1 (MHz) F2 (MHz) F3 (MHz) F4 (MHz) F5 (MHz)
1 136 - 174 (V)
TX1:136 RX1:136.1
TX2:145.5 RX2:145.6
TX3:155 RX3:155.1
TX4:164.5 RX4:164.6
TX5:174 RX5:173.9
2 400 - 450 (U1)
TX1:400 RX1:400.1
TX2:412.5 RX2:412.6
TX3:425 RX3:425.1
TX4: 437.5 RX4:437.6
TX5:450 RX5:449.9
3 440 - 490 (U2)
TX1:440 RX1:440.1
TX2:452.5 RX2:452.6
TX3:465 RX3:465.1
TX4:477.5 RX4:477.6
TX5:490 RX5:489.9
4 420 - 470 (U3)
TX1:420 RX1:420.1
TX2:432.5 RX2:432.6
TX3:445 RX3:445.1
TX4:457.5 RX4:457.6
TX5:470 RX5:469.9
5 470 - 520 (U4)
TX1:470 RX1:470.1
TX2:482.5 RX2:482.6
TX3:495 RX3:495.1
TX4:507.5 RX4:507.6
TX5:520 RX5:519.9
6 300 - 350 (U6)
TX1:300 RX1:300.1
TX2:312.5 RX2:312.6
TX3:325 RX3:325.1
TX4:337.5 RX4:337.6
TX5:350 RX5:349.9
7 350 - 390 (U5)
TX1:350 RX1:350.1
TX2:360 RX2:360.1
TX3:370 RX3:370.1
TX4:380 RX4:380.1
TX5:390 RX5:389.9
8 450 - 520 (U8)
TX1:450 RX1:450.1
TX2:467.5 RX2:467.6
TX3:485 RX3:485.1
TX4:502.5 RX4:502.6
TX5:520 RX5:519.9
9 400 - 470 (U7)
TX1:400 RX1:400.1
TX2:417.5 RX2:417.6
TX3:435 RX3:435.1
TX4:452.5 RX4:452.6
TX5:470 RX5:469.9
Channel data is shown as follows:
Channel Rx Frequency (MHZ) Tx Frequency (MHZ) Signalling Power Channel Spacing
1 RX1 TX1 None H 25KHZ 2 RX3 TX3 None H 25KHZ 3 RX5 TX5 None H 25KHZ 4 RX1 RX1 None LO 20KHZ 5 RX3 RX3 None LO 20KHZ 6 RX5 RX5 None LO 20KHZ 7 RX1 RX1 None LO 12.5KHZ 8 RX3 RX3 None LO 12.5KHZ 9 RX5 RX5 None LO 12.5KHZ
10 RX3 RX3 67HZ LO 25KHZ
11 RX3 RX3 254.1HZ LO 25KHZ 12 RX3 RX3 023 LO 25KHZ 13 RX3 RX3 754 LO 25KHZ 14 RX3 RX3 2-TONE LO 25KHZ 15 RX3 RX3 5-TONE LO 25KHZ 16 RX3 RX3 None LO 25KHZ
TC-700 Ex PLUS Service Manual
8
3. Wireless Cloning Mode
Select wireless cloning from optional functions in programming software, turn the radio on while holding down PTT and SK1 key simultaneously for 2 seconds, then the source and slave radios enter wireless cloning mode with orange LED flashing once (when both radios are turned on and stay in the same channel), hold down PTT on the source radio to begin cloning. During cloning progress, the source radio emits red LED and the slave radio emits green LED. When cloning is finished, the slave radio flashes green LED and emits Beep tone, and the source radio shuts off LED. If cloning failed, the slave radio flashes red.
4. Wired Cloning Mode
Select Wired Cloning from optional functions in programming software, turn the radio on while holding down PTT and SK2 key simultaneously for 2 seconds, then the source radio enters Wired Cloning mode with orange LED flashing twice. Then simply turn the slave radio on. Hold down PTT on the source radio to begin cloning. During cloning progress, the source radio emits red LED and the slave radio emits green LED. When cloning is finished, both radios shut off LED. If cloning failed, the source radio flashes red.
5. Manual Adjust Mode
Manual adjustment is performed to adjust frequency deviation, power, sensitivity, squelch, etc. Note: Prior to entering this mode, select the Manual Adjust Mode from optional functions in programming software. The manual adjustment operations are detailed as follows:
(1) Enter the manual adjust mode
Turn the radio on by holding down TK and SK2 key simultaneously for 2 seconds, then the radio enters manual adjust mode with red LED flashing twice.
(2) Channel number on the channel selector knob
Adjust the settings on the selected channel. Each changing of channel selects 25KHz channel spacing and low frequency F1.
(3) SK2 key
Sets the frequency. 1 point tuning adjusts center frequency; 3 point tuning adjusts F1, F3, F5; 5 point tuning adjusts F1-F5. The frequency toggles at a low to high cycle. Green LED flashes once when adjusting F1.
(4) TK key
Use to toggle the channel spacing among 25 KHz, 20 KHz and 12.5 KHz. Red LED flashes once when the 25 KHz is selected.
(5) PTT/SK1
PTT→ Increase SK1→ Decrease PTT/SK1 is pressed to increase or decrease the value of the adjusting item. Red LED glows indicating the maximum value and green LED indicating the minimum value. Hold down the key to increase or decrease the value continuously. Press PTT key to save the BATT LOW, VOX and SQL settings, then green LED glows once.
(6) Select adjustment group
The first group of adjustment items is selected once the radio enters the manual adjust mode. Select the 16thchannel and press PTT key to enter the next group. Press it again to return to the first group. Orange LED flashes once when the first group is selected and flashes twice when the second group is selected.
TC-700 Ex PLUS Service Manual
9
(7) Frequency Setting
5 point tuning (MHz) TX: { TX1,TX2,TX3,TX4,TX5}
RX: { RX1,RX2,RX3,RX4,RX5}
3 point tuning (MHz) TX: { TX1, TX3, TX5}
RX: { RX1, RX3, RX5}
1 point tuning (MHz) TX: { TX3}
RX: { RX3}
6. PC Tuning Mode
Select tuning mode of programming items in the programming software and then tuning as the setting.
First Group of Adjustment Items
Channel No. Adjustment Item Remarks
25KHz 20KHz 12.5KHz 1 Tx power LOW 5 point tuning 2 CDCSS PLL balance 3 point tuning (wide) 3 CDCSS deviation 3 point tuning (wide) 1 point tuning 1 point tuning (narrow) 4 CTCSS deviation LOW (67Hz) 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
5
CTCSS deviation CENTER (136.5Hz)
3 point tuning (wide) 1 point tuning
1 point tuning (narrow)
6 CTCSS deviation HIGH (254.1Hz) 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
7 AK2346 audio deviation (TX) 3 point tuning (wide) 1 point tuning 3 point tuning (narrow)
8 2 TONE deviation 1 point tuning (wide) 1 point tuning 1 point tuning (narrow) 9 DTMF deviation 1 point tuning (wide) 1 point tuning 1 point tuning (narrow)
10 MSK deviation 3 point tuning (wide) 1 point tuning 1 point tuning (narrow) 11 TX power HIGH 5 point tuning 12 TX voltage LOW 1 point tuning
Second Group of Adjustment Items
Channel No.
AdjustmentItem
Remarks
25KHz 20KHz 12.5KHz 1 RX sensitivity 5 point tuning 2 AK2346 volume (RX) 1 point tuning (wide) 1 point tuning 1 point tuning (narrow) 3 Squelch level 3 (OPEN) 5 point tuning (wide) 1 point tuning 3 point tuning (narrow) 4 Squelch level 3 (SQUELCH) 5 point tuning (wide) 1 point tuning
3 point tuning (narrow)
5 Squelch level 9 (OPEN) 5 point tuning (wide) 1 point tuning
3 point tuning (narrow)
6 Squelch level 9 (SQUELCH) 5 point tuning (wide) 1 point tuning 3 point tuning (narrow) 7 RX voltage LOW 1 point tuning
TC-700 Ex PLUS Service Manual
10
Circuit Description
Power Supply
The radio power is supplied by the battery. The power supply is from B+, and supplies power SWB+ for the three AVRs, after passing through fuse FE250mA and switch. IC504 supplies 5V (M5V) voltage for the control circuit. And IC503 supplies 5V (C5V) voltage for the shared circuit. IC502 supplies voltage for the transmit/receive circuit. While transmitting, T5C becomes low level and Q502 is turned on to supply 5V (T5V) voltage for the transmit circuit. While receiving, R5C becomes low level and Q504 is turned on to supply 5V (R5V) voltage for the receive circuit. Power supply for RF is from B+ and works after passing through fuse FE4 2A. Power supply for audio PA is from B+ and works after passing through fuse FE5 0.5A.
Fig. 1 Power Supply Block Diagram
PLL Frequency Synthesizer
PLL circuit generates the first local oscillator signal for receive and RF signal for transmit.
Fig.2 PLL Block Diagram
TC-700 Ex PLUS Service Manual
11
1. PLL Circuit
Step frequency of PLL can be 2.5 KHz, 5.0 KHz or 6.25 KHz. A 16.8MHz reference oscillator signal is divided at IC301 by a counter to generate a 2.5 KHz, 5.0 KHz or 6.25 KHz reference frequency. Output signal from VCO is buffer amplified by Q301 and divided at IC301 by a frequency divider. The divided signal is compared with 2.5 KHz, 5.0 KHz or 6.25 KHz reference signal in the phase comparator of IC301. The output signal from phase comparator is filtered through a low pass filter to generate a level D.C., and the level D.C. controls oscillator frequency by controlling VCO.
2. VCO
The operating frequency is generated by Q302 in transmit mode and by Q307 in receive mode. Operating frequency generate a control voltage by phase comparator to control varactor so that the oscillator frequency is consistent with the MCU preset frequency (D301、D302、D303 and D304 in transmit mode, and D307、D308、D309 and D310 in receive mode). T/R pin is set high level in receive mode, and low level in transmit mode. The output from Q302 and Q307 is amplified by Q304 and sent to buffer amplifier.
3. Unlock Detector
An unlock condition appears if low level occurs at MUXOUT pin of IC301. Transmission is inhibited if this condition is detected by microprocessor.
Receiver
The receiver utilizes double conversion superheterodyne (UHF)/(VHF).
Fig. 3 Receiver Section Configuration
1. Front-end RF Amplifier
The signal from antenna is amplified at RF amplifier (Q207) after passing through a transmit/receive circuit and a band pass filter. Before passing the first mixer, the amplified signal is filtered through another band pass filter to remove unwanted signals.
2. First Mixer
The signal from RF amplifier is mixed with the first local from PLL frequency synthesizer circuit at the fix mixer (IC202) to create a 49.95MHz first IF signal. The first IF signal is then fed through a crystal filter (XF203) to further remove unwanted signals.
3. IF Amplifier
The first IF signal is amplified by Q206 before passing through crystal filter and by Q204 after crystal filter and then enters IF processing chip IC204. The signal from IC204 is mixed with the second oscillator signal again in IC204 to create a 450 KHz second IF signal. The second IF signal then passes through a
TC-700 Ex PLUS Service Manual
12
450KHz ceramic filter (wide: CF201，narrow: CF202) to eliminate unwanted signals before it is amplified and detected in IC204.
4. Narrow/Wide Switch Circuit
Pin WCON and pin NCON of IC500 outputs wide (high level) and narrow (low level) channel spacing signal respectively to turn on corresponding diode-connector, and to choose ceramic filter CF201 (wide) or CF202 (narrow) to filter useless spurious signal.
5. AF Amplifier
The resulting AF signal from IC204 enters baseband processing chip IC408. The processed AF signal is then amplified by an AF power amplifier (IC401) to drive the speaker.
Transmitter
1. AF and Signalling
AF signal from the microphone is amplified and low-pass-filtered in IC402 before it enters baseband processing chip IC408, which also enters CTCSS/CDCSS/DTMF/2-Tone (5-Tone) signalling generated by CPU. The IC408 processed mixing signal enters VCO for direct FM modulation (see fig.5).
2. RF Power Amplifier
The transmit signal from VCO buffer amplifier (Q111) is amplified by Q101 and Q102. The amplified signal is then amplified by the power amplifier Q103 and Q104 (including a two-stage FET amplifier) to create 4.0W (UHF)/5.0W (VHF) RF power (see Fig. 6).
Fig. 4 APC System
3. Antenna Switch and LPF
Output signal from RF amplifier passes through a low-pass filter network and a transmit/receive switch circuit comprised of D102, D103 and D104 before it reaches the antenna terminal. D103 and D104 is turned on (conductive) in transmit mode and off (isolated) in receive mode.
TC-700 Ex PLUS Service Manual
13
4. APC
The automatic power control (APC) circuit stabilizes the transmit power by detecting the drain current of final stage amplifier FET. IC101 (2/2) compares the preset reference voltage with the voltage obtained from final current. APC voltage is in proportion to the difference between auto detect voltage and reference voltage output from IC101 (1/2). The output voltage controls FET power.
Baseband and Signalling System
The block diagram of signalling section is shown as figure 5.
AF DET
IC404
AMP LPF
IC405
LPF
CTCSS/CDCSS
TI
RXIN/RXINO
IC401
AMP
SP
AFCO
AFMUTE
MIC
Q401
SW
IC402
AMP LPF
D402
RB706F-40
VOX
MIC MUTE
5CNS
PTT
TONEO
Q406 Q407
SW
Q403
SW
Q404
SW
ALM/BP
IC408
AK2346
VR1
Scrambler
DeScrambler
VR3RXLPF
Pre­Emphasis
COM­pressor
SMF VR4ExpandSplatterVR2
Limiter
De-
Emphasis
MSK
Modulator
MSK
Demodulator
MOD
IC407
BPF
TONEI
AFCK CODIO AFRDF
AFDT AFSK AFDIR 1/2OSD TONEO
Fig. 5 AF and Signalling Circuit
1. CTCSS/CDCSS Transmit: CTCSS/CDCSS signalling produced by CTCSS-PLL pass a low pass filter and then enters
VCXO. CTCSS/CDCSS signalling produced by CTCSS-OUT pass a low pass filter and then mixed with AF before enters VCO. Receive: Demodulated signal enters MCU after pass IC404、 IC405. MCU then judges whether CTCSS/CDCSS matches the preset values or not.According the result, the out tone will be controlled by AFMUTE.
2. 2-Tone (5-Tone) and DTMF Transmit: The signal produced by MCU provides a Tx and SP output tone, and is then applied to the
baseband processing IC. The signal in mixed with the audio signal and goes to the VCO. Receive: Demodulated signal is filtered after passing baseband processing IC, and then enters MCU for decoding.
3. MSK Transmit: MSK signal produced by baseband processing IC enters VCO together with AF signal for
modulation. Receive: MSK input of demodulating IC is sent to AK2346 for demodulation after being amplified. The demodulated signal is then sent to MCU for decoding.
4. AF Transmit: AF signal from MIC enters baseband processed IC for amplification, pre-emphasis etc. after
being amplified. And then it enters VCO for modulation. Receive: Demodulated AF signal enters the baseband processing IC for amplification, de-emphasis,
TC-700 Ex PLUS Service Manual
14
etc., after being amplified.And then it enters AF PA driven speaker. Baseband processed chip provides functions for processing signal as amplifying, filtering, emphasizing, scrambling, companding, and amplitude limiting.
Control System
The IC500 CPU operates at 9.8304 MHz. The block diagram of MCU control system is shown as the following figure:
Fig.6 MCU Block Diagram Circuit in this section is mainly comprised of MCU, EEPROM etc. MCU control circuit accomplishes the following functions: accomplish the reset initialization according to
the programmed feature of the radio when power on; detect keying signal and monitor battery voltage; send necessary frequency data to PLL according to encode of the channel; switch and control transmit/receive according to the signal input from PTT; turn on/off the mute circuit according to the input signalling decode signal and squelch level signal; output control signal to control the light/off of LED; control signalling process IC to perform tasks.
EEPROM
CTCSS/CDCSS
Code
TC-700 Ex PLUS Service Manual
15
CPU Pins
No. MCU Port Port Name Input/Output Features
1 P94/DA1 APC/TV O Automatic Power Control 2 P93/DA0 TONEO O DTMF/2-Tone (5-Tone)/Beep tone output/ ALARM tone output 3 P92/TB2IN NC O NC 4 P91 O 5 P90 SHIFT O Clock beat-frequency 6 BYTE BYTE I 7 CNVSS CNVSS I 8 P87/XCIN O
9 P86/XCOUT O 10 RESET RESET I Input low level to enter all reset mode 11 XOUT XOUT O Crystal oscillator output pin 12 VSS GND I GND 13 XIN XIN I Crystal oscillator output pin 14 VCC VCC I VCC 15 P85/NMI NMI I 16 P84/INT2 AFCK I 2346 TCLK 17 P83/INT1 AUX1 O Indication for external scrambler 18 P82/INT0 AFRDF I
2346 RDF
19 P81 O 20 P80 PTTCO O PTTCO 21 P77 NC O 22 P76/TA3O CTCOUT O CTC _OUT (PWM) TO VCO 23 P75 NC O 24 P74/TA2O CTC_PLL O CTC_PLL (PWM) 25 P73 COM5 O Indication for receive/transmit status 26 P72/TA1O 1/2OSC O 27 P71/RxD2/TB5IN TONEI O 28 P70/TxD2 29 P67/TxD1 TXD O Serial date output. 30 P66/RxD1 RXD I Serial date input. 31 P65 I 32 P64 O 33 P63/TxD0 I COM4 34 P62/RxD0 O COM3 35 P61 COM1
TC-700 Ex PLUS Service Manual
16
No. MCU Port Port Name Input/Output Features
36 P60 COM2 37 P57/RDY EEDAT I/O EEPROM DATA, date input/output. 38 P56/ALE EECLK O EEPROM CLK 39 P55/HOLD I 40 P54/HLDA AFDIR O AK2346 DIR 41 P53/BLCK AFSCK O 2346 SCLK 42 P52/RD NC O 43 P51/BHE AFDT O 2346 TDATA 44 P50/WR WE I 45 P47/CS3 CODIO I/O Common date control (AK2346 DATA). 46 P46/CS2 47 P45/CS1 SAVE O SAVE, power save control 48 P44/CS0 R5C O R5C Rx circuit power supply control 49 P43/A19 T5C O T5C Tx circuit power supply control 50 P42/A18 51 P41/A17 52 P40/A16 53 P37/A15 54 P36/A14 55 P35/A13 56 P34/A12 57 P33/A11 58 P32/A10 59 P31/A9 60 Vcc VCC I VCC 61 P30/A8 NCON O Narrow control 62 Vss GND I GND 63 P27/A7 AFCO O AFCO 64 P26/A6 WCON O Wide control 65 P25/A5 LEDR O Red LED control: H, lit; L, goes out 66 P24/A4 LEDG O Green LED control: H, lit; L, goes out 67 P23/A3 EN2 I EN2 68 P22/A2 EN4 I EN4 69 P21/A1 EN3 I EN3 70 P20/A0 EN1 I EN1 71 P17/INT5 72 P16/INT4 AFMUTE
TC-700 Ex PLUS Service Manual
17
No. MCU Port Port Name Input/Output Features
73 P15/INT3 74 P14 TK I ALARM 75 P13 DC-Switch O 76 P12 PLL_UL I PLL unlock detect 77 P11 PLL_STB O PLL strobe output 78 P10 MICMUTE O MICMUTE 79 P07/D7 Option1 I 80 P06/D6 PLL_DATA O PLL date input 81 P05/D5 PLL_CLK O PLL clock output 82 P04/D4 T/R O Receive/transmit control 83 P03/D3 APC-Switch O 84 P02/D2 PTT I PTT 85 P01/D1 SK1 I MONI 86 P00/D0 SK2 I FK 87 P107/AN7 I MIC signal input 88 P106/AN6 BATT I BATT, battery voltage detect 89 P105/AN5 BATTSEL I Battery detect 90 P104/AN4 NC I 91 P103/AN3 SELF I Reset mode control: ground this pin to enter reset mode. 92 P102/AN2 RSSI I RSSI detect pin 93 P101/AN1 SQL I Squelch level input 94 AVSS GND I 95 P100/AN0 CTCIN I CTCSS input 96 VREF VCC I A/D conversion reference voltage 97 AVCC VCC I A/D conversion po 98 P97 O 99 P96 O
100 P95 O
TC-700 Ex PLUS Service Manual
18
Parts List 1
TC-700 Ex PLUS VHF Parts List 1
No. Material No. Description Qty. Ref No. Print No.
1 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R147 T5F 2 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R254 T1G 3 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R303 B3G 4 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R315 B4I 5 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R318 B4I 6 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R319 B4I 7 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R402 T1F 8 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R404 B3K
9 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R406 B2J 10 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R424 R444 11 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R444 B2I 12 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R453 B3K 13 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R457 B3K 14 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R495 B3J 15 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R497 T1H 16 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R504 T5I 17 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R510 T3K 18 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R519 T1I 19 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R590 B3K 20 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R608 T1G 21 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R609 T1G 22 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R152 B3G 23 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R214 B2G 24 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R344 B2I 25 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R348 B4J 26 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R349 B5I 27 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R350 B5I 28 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R456 T2E 29 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R222 B1G 30 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R223 B1E 31 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R301 B3I 32 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R305 B4G 33 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R308 B4G 34 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R335 B3I 35 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R346 B2I 36 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R454 T1D 37 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R605 T2A 38 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R228 B1E 39 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R311 B4G 40 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R317 B4I 41 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R352 B5I 42 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R405 B3K 43 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R466 T1J 44 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R468 T1C 45 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R512 T4I 46 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R522 T2H 47 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R534 T3I 48 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R550 T2J
TC-700 Ex PLUS Service Manual
19
No. Material No. Description Qty. Ref No. Print No.
49 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R551 T4J 50 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R553 T2I 51 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R555 T4J 52 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R560 T2I 53 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R563 T4I 54 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R565 T3K 55 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R566 T3K 56 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R112 B4E 57 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R141 T4E 58 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R201 B2F 59 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R321 B4J 60 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R336 B5J 61 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R347 B4I 62 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R407 B3K 63 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R418 T3F 64 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R426 B3K 65 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R432 T1J 66 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R440 T1E 67 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R442 B3K 68 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R461 T1K 69 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R463 T1J 70 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R467 T1J 71 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R471 B2K 72 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R476 B2K 73 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R480 B3K 74 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R482 B3J 75 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R485 B3J 76 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R487 B4J 77 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R489 B4J 78 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R508 T2J 79 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R517 T4K 80 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R630 T2G 81 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R631 T3G 82 3001051030000 Chip resistor 0402 10KΩ J 1/1 1 R632 T3G 83 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R146 T4F 84 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R212 B2G 85 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R218 T1H 86 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R234 B3D 87 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R235 B3C 88 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R240 B3B 89 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R241 B3D 90 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R242 B3B 91 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R253 B3C 92 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R310 B4G 93 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R400 T1G 94 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R403 T1F 95 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R428 B2J 96 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R429 T1J 97 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R430 T1J 98 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R448 B4K 99 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R475 B2K
100 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R486 T1H
TC-700 Ex PLUS Service Manual
20
No. Material No. Description Qty. Ref No. Print No.
101 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R493 B3J 102 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R516 T4K 103 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R557 T2I 104 3001051040010 Chip resistor 0402 100KΩ J 1/ 1 R559 T4K 105 3001051050020 Chip resistor 0402 1MΩ J 1/16 1 R142 T4E 106 3001051050020 Chip resistor 0402 1MΩ J 1/16 1 R462 T1K 107 3001051050020 Chip resistor 0402 1MΩ J 1/16 1 R474 B2J 108 3001051050020 Chip resistor 0402 1MΩ J 1/16 1 R634 T2G 109 3001051230000 Chip resistor 0402 12KΩ J 1/1 1 R238 B3B 110 3001051230000 Chip resistor 0402 12KΩ J 1/1 1 R483 B3J 111 3001051240000 Chip resistor 0402 120KΩ J 1/ 1 R339 B3I 112 3001051520000 Chip resistor 0402 1.5KΩ J 1/ 1 R203 B1G 113 3001051530000 Chip resistor 0402 15KΩ J 1/1 1 R409 B3J 114 3001051530000 Chip resistor 0402 15KΩ J 1/1 1 R469 T1H 115 3001051530000 Chip resistor 0402 15KΩ J 1/1 1 R498 B2J 116 3001051540000 Chip resistor 0402 150KΩ F 1/ 1 R138 T5F 117 3001051540000 Chip resistor 0402 150KΩ F 1/ 1 R139 T4F 118 3001051540000 Chip resistor 0402 150KΩ F 1/ 1 R425 T1E 119 3001051540000 Chip resistor 0402 150KΩ F 1/ 1 R464 T1K 120 3001051540000 Chip resistor 0402 150KΩ F 1/ 1 R465 T1K 121 3001051540020 Chip resistor 0402 150KΩ J 1/ 1 R307 B4G 122 3001051540020 Chip resistor 0402 150KΩ J 1/ 1 R351 B5I 123 3001051800000 Chip resistor 0402 18Ω J 1/16 1 R231 B2E 124 3001051820000 Chip resistor 0402 1.8KΩ J 1/ 1 R217 B1F 125 3001051820000 Chip resistor 0402 1.8KΩ J 1/ 1 R416 T2B 126 3001051830000 Chip resistor 0402 18KΩ J 1/1 1 R421 B1I 127 3001051830000 Chip resistor 0402 18KΩ J 1/1 1 R422 B1I 128 3001051830000 Chip resistor 0402 18KΩ J 1/1 1 R438 T1E 129 3001051830000 Chip resistor 0402 18KΩ J 1/1 1 R451 B4K 130 3001051830000 Chip resistor 0402 18KΩ J 1/1 1 R452 B4K 131 3001051840000 Chip resistor 0402 180KΩ J 1/ 1 R337 B3I 132 3001051840000 Chip resistor 0402 180KΩ J 1/ 1 R446 B4J 133 3001051840000 Chip resistor 0402 180KΩ J 1/ 1 R447 B4J 134 3001051840000 Chip resistor 0402 180KΩ J 1/ 1 R492 B3J 135 3001052200000 Chip resistor 0402 22Ω J 1/16 1 R104 B4F 136 3001052200000 Chip resistor 0402 22Ω J 1/16 1 R107 B4E 137 3001052200000 Chip resistor 0402 22Ω J 1/16 1 R309 B4G 138 3001052210000 Chip resistor 0402 220Ω J 1/1 1 R225 B1E 139 3001052220000 Chip resistor 0402 2.2KΩ J 1/ 1 R144 T4F 140 3001052220000 Chip resistor 0402 2.2KΩ J 1/ 1 R229 B1E 141 3001052220000 Chip resistor 0402 2.2KΩ J 1/ 1 R316 B4I 142 3001052220000 Chip resistor 0402 2.2KΩ J 1/ 1 R420 T3E 143 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R204 B1H 144 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R206 B1H 145 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R207 B1H 146 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R208 B1H 147 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R431 T1J 148 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R433 T1J 149 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R445 B4J 150 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R458 B3J 151 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R460 B3K 152 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R484 B3I
TC-700 Ex PLUS Service Manual
21
No. Material No. Description Qty. Ref No. Print No.
153 3001052230010 Chip resistor 0402 22KΩ J 1/1 1 R494 B2J 154 3001052240000 Chip resistor 0402 220KΩ J 1/ 1 R302 B3I 155 3001052240000 Chip resistor 0402 220KΩ J 1/ 1 R345 B2I 156 3001052240000 Chip resistor 0402 220KΩ J 1/ 1 R439 B2I 157 3001052240000 Chip resistor 0402 220KΩ J 1/ 1 R477 B2K 158 3001052240000 Chip resistor 0402 220KΩ J 1/ 1 R548 B4A 159 3001052700000 Chip resistor 0402 27Ω J 1/16 1 R226 B1E 160 3001052710010 Chip resistor 0402 270Ω J 1/1 1 R150 B3G 161 3001052710010 Chip resistor 0402 270Ω J 1/1 1 R230 B1E 162 3001052710010 Chip resistor 0402 270Ω J 1/1 1 R232 B2E 163 3001052720000 Chip resistor 0402 2.7KΩ J 1/ 1 R211 B2G 164 3001052720000 Chip resistor 0402 2.7KΩ J 1/ 1 R219 B1G 165 3001052730000 Chip resistor 0402 27KΩ J 1/1 1 R401 T1E 166 3001052730000 Chip resistor 0402 27KΩ J 1/1 1 R499 T1E 167 3001052790000 Chip resistor 0402 2.7Ω J 1/1 1 R236 B2B 168 3001053310010 Chip resistor 0402 330Ω J 1/1 1 R103 B4F 169 3001053310010 Chip resistor 0402 330Ω J 1/1 1 R108 B4E 170 3001053320000 Chip resistor 0402 3.3KΩ J 1/ 1 R101 B3F 171 3001053320000 Chip resistor 0402 3.3KΩ J 1/ 1 R148 B3G 172 3001053320000 Chip resistor 0402 3.3KΩ J 1/ 1 R151 B3G 173 3001053320000 Chip resistor 0402 3.3KΩ J 1/ 1 R216 T1G 174 3001053330010 Chip resistor 0402 33KΩ J 1/1 1 R419 B2I 175 3001053330010 Chip resistor 0402 33KΩ J 1/1 1 R478 B2K 176 3001053340000 Chip resistor 0402 330KΩ J 1/ 1 R481 B3K 177 3001053910000 Chip resistor 0402 390Ω J 1/1 1 R123 B5E 178 3001053910000 Chip resistor 0402 390Ω J 1/1 1 R304 B4H 179 3001053910000 Chip resistor 0402 390Ω J 1/1 1 R314 B4G 180 3001053920010 Chip resistor 0402 3.9KΩ J 1/ 1 R106 B4F 181 3001053940000 Chip resistor 0402 390KΩ J 1/ 1 R449 B4K 182 3001053940000 Chip resistor 0402 390KΩ J 1/ 1 R523 T2H 183 3001054320000 Chip resistor 0402 4.3KΩ J 1/ 1 R237 B3C 184 3001054700000 Chip resistor 0402 47Ω J 1/16 1 R111 B4E 185 3001054710000 Chip resistor 0402 470Ω J 1/1 1 R415 T2B 186 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R118 B3G 187 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R205 B1H 188 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R209 B1H 189 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R213 B2G 190 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R312 B5G 191 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R313 B3G 192 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R320 B4I 193 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R459 T1J 194 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R490 B4K 195 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R496 T1H 196 3001054720000 Chip resistor 0402 4.7KΩ J 1/ 1 R520 T2G 197 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R102 B4F 198 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R113 B4E 199 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R145 T5F 200 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R215 T1H 201 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R414 T3E 202 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R443 B2I 203 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R488 B4J 204 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R502 T2K
TC-700 Ex PLUS Service Manual
22
No. Material No. Description Qty. Ref No. Print No.
205 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R506 T5J 206 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R507 T2J 207 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R515 T1I 208 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R535 T5J 209 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R536 T5J 210 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R538 T5J 211 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R539 T4H 212 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R549 T2G 213 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R556 T2I 214 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R558 T3K 215 3001054730000 Chip resistor 0402 47KΩ J 1/1 1 R561 T3K 216 3001054740000 Chip resistor 0402 470KΩ J 1/ 1 R322 B3G 217 3001054740000 Chip resistor 0402 470KΩ J 1/ 1 R408 T1E 218 3001054790000 Chip resistor 0402 4.7Ω J 1/1 1 R411 T1E 219 3001054790000 Chip resistor 0402 4.7Ω J 1/1 1 R412 T2E 220 3001055110000 Chip resistor 0402 510Ω J 1/1 1 R251 B3C 221 3001055130010 Chip resistor 0402 51KΩ J 1/1 1 R479 B2K 222 3001055620000 Chip resistor 0402 5.6KΩ J 1/ 1 R117 B5E 223 3001055620000 Chip resistor 0402 5.6KΩ J 1/ 1 R149 B3G 224 3001055620000 Chip resistor 0402 5.6KΩ J 1/ 1 R410 T1E 225 3001055630000 Chip resistor 0402 56KΩ J 1/1 1 R472 B2K 226 3001055630000 Chip resistor 0402 56KΩ J 1/1 1 R473 B2K 227 3001056810000 Chip resistor 0402 680Ω J 1/1 1 R105 B4F 228 3001056820000 Chip resistor 0402 6.8KΩ J 1/ 1 R227 B1E 229 3001056820000 Chip resistor 0402 6.8KΩ J 1/ 1 R239 B2B 230 3001056820000 Chip resistor 0402 6.8KΩ J 1/ 1 R427 B3J 231 3001056830000 Chip resistor 0402 68KΩ J 1/1 1 R252 B2G 232 3001056830000 Chip resistor 0402 68KΩ J 1/1 1 R470 B2K 233 3001056840000 Chip resistor 0402 680KΩ J 1/ 1 R220 B1G 234 3001058220000 Chip resistor 0402 8.2KΩ J 1/ 1 R601 T1G 235 3001058230000 Chip resistor 0402 82KΩ J 1/1 1 R441 B2I 236 3001058230000 Chip resistor 0402 82KΩ J 1/1 1 R450 B4K 237 3001059130000 Chip resistor 0402 91KΩ F 1/1 1 R338 B3I 238 3001061800000 Chip resistor 0603 18Ω J 1/10 1 R109 B3F 239 3001064700000 Chip resistor 0603 47Ω J 1/10 1 R115 B5E 240 3001070000000 Chip resistor 0805 0Ω J 1/8W( 1 R114 B4E 241 3002996830000 Trimmer resistor(2*2) 68KΩ(+25%) 1 VR1 T2I 242 3003992220000 Thermistor 0603 2.2KΩ J 10 1 TH301 B3I 243 3003994730000 Thermistor 0603 47KΩ J 100 1 RTHE1 B5D 244 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP506 T4J 245 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP507 T3K 246 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP509 T2I 247 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP511 T2J 248 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP512 T2J 249 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP514 T4J 250 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP516 T4I 251 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP517 T4K 252 3005051020000 Resistor array 0402 1K*2 J 1/16 1 CP524 T4I 253 3005051020010 Resistor array 0402 1K*4 J 1/16 1 CP505 T2J 254 3005051020010 Resistor array 0402 1K*4 J 1/16 1 CP518 T3I 255 3005051020010 Resistor array 0402 1K*4 J 1/16 1 CP519 T3I 256 3005051020010 Resistor array 0402 1K*4 J 1/16 1 CP525 T4I
Loading...
+ 53 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use