R74TC-700U8Two-way Radio

Contents General....................................................................................... Brief Introduction........................................................................ Software Specification................................................................... Circuit Description..................................................................... CPU Pins.................................................................................... Part List 1................................................................................. Adjustment Description................................................................ Trouble-shooting Chart................................................................ Disassembly and Assembly for Repair.......................................... Exploded View............................................................................. Part List 2.................................................................................... Packing...................................................................................... PC Board View........................................................................... Level Diagram........................................................................... Schematic Diagram...................................................................... Description of TC-700 Desktop Charger.......................................... Specifications.............................................................................. TC-700 General 1 Revision History Edition Release Date Revised Content 8130070000000 2005/09/22 Initial release 2006/09/22 1) 2-Tone/5-Tone, add HDC1200 and HDC2400 TM 2) Update schematic diagram and part list 3) Update exploded view, part list and diagram for disassembly and assembly 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. User Safety Information The following precautions are recommended for personnel safety: z DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated. z SHUT OFF and do not operate this equipment near electrical blasting caps or in an explosive atmosphere. z When in vehicles with an airbag, do not place a portable radio in the area over an airbag or in the airbag deployment area. z Do not expose the radio to direct sunlight for a long time nor place it close to a heating source. z Do not use any portable radio with a damaged antenna. If a damaged antenna comes into contact with your skin, a minor burn may result. z When transmitting with a portable radio, hold the radio in a vertical position with its microphone about 5 centimeters away from your mouth. z If you wear a portable radio on your body, be sure to keep the antenna at least 2.5 centimeters away from your head or body when transmitting. z This equipment should be serviced by a qualified technician only. TC-700 Brief Introduction 2 Brief Introduction Control Knob and Function Key (1) PTT Key（Push-To-Talk Key） Select transmit/receive mode. Press and hold PTT, radio operates in transmit mode. Release PTT, radio returns to receive mode. (2) SK1 Key Side Key1, programmable key (3) SK2 Key Side Key2, programmable key (4) Antenna (5) Microphone (6) Speaker (7) TK Key Top Key, programmable (8) Channel Selector Knob Rotate the knob to select Channel1 to 16 TC-700 Brief Introduction 3 (9) Power/Volume Control Knob Rotate the Power/Volume Control Knob clockwise to turn the radio on; fully counter clockwise to turn the radio off. Increase or decrease volume by adjusting the volume control accordingly. (10) LED Indicator Red LED glows while transmitting; green LED glows while receiving; red LED flashes when the battery voltage is low. (11) External Jack (12) Earplug Cover Screw (13) Earplug Cover (14) Belt Clip (15) Battery (16) Belt Clip Screw (17) Charging Connector (18) Release Button TC-700 Software Specification 4 Software Specification Specification: ‹ Conventional Mode 1. Mechanical Knob (16 channels) VHF:136～174MHz UHF:400-470MHz, 450～520MHz 2. Channel Spacing: 25/20/12.5KHz (Wide/Medium/Narrow bandwidth compatible) 3. Step: 2.5/5/6.25KHz 4. LED Indicator: Red/Green 5. 3 Programmable Function Keys 6. CTCSS/CDCSS Encode & Decode 7. DTMF Encode 8. 2-Tone (2-Tone version) / 5-Tone (5-Tone version) 9. HDC2400 TM Encode & Decode 10. HDC1200 Encode & Decode 11. Squelch Mode: 1) Carrier 2) CDCSS/CTCSS 3) Optional Signalling 4) CTCSS/CDCSS AND 2-Tone/5-Tone/ HDC2400 TM /HDC1200 5) CTCSS/CDCSS OR 2-Tone/5-Tone/ HDC2400 TM /HDC1200 12. Scan 13. Time-Out-Timer (TOT) 14. Rent 15. Battery Save 16. Emergency 17. PTT ID 18. Busy Channel Lockout & Busy Tone Lockout Description 1. User Mode This mode is for normal operation. 2. All Reset Mode Firstly ground the SELF point, and then turn the power 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 TC-700 Software Specification 5 selected channel and press PTT, the radio data is all reset (All clone modes will be automatically activated when All Reset is completed). Frequency settings are shown as follows: Channel data is shown as follows: Channel RX Frequency (MHZ) TX Frequency (MHZ) Signaling 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 Software Specification 6 3. Wireless Clone Mode Select wireless clone from optional functions in programming software, turn the pow…

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THANK YOU! Thank you for your purchase of the HYT TC-700 radio - the choice for professionals. This easy-to-use radio will deliver you secure, instant and reliable communications at peak efficiency. Please read this manual carefully before use. The information presented herein will help you to derive maximum performance from your radio. MODELS COVERED IN THIS MANUAL TC-700 VHF Two-way Radio TC-700 UHF Two-way Radio 1 Contents Safety and General Information Product Inspection Battery Antenna Accessory Information Attaching the Battery Removing the Battery Attaching the Antenna Removing the Antenna Attaching the Belt Clip Removing the Belt Clip Attaching the Earpiece/Microphone Getting Started Programmable Auxiliary Functions Basic Operations Advanced Operations Call1/Call2 Emergency Lone Worker Lone Worker Backup Man Down (optional) Man Down Backup (optional) Monitor/Squelch Off Squelch Level Check / Selectable Squelch Level (SQL) Scan Scan Backup Scrambler Talk Around 2 Output Power Check/Adjust Power Level Whisper Whisper Backup Battery Power Indicator Rental Timer Indicator Channel Annunciation Temporary Enable Channel Annunciation Auto Contact Auto Contact Temporary Delete TX Low Power Mode Enable TX Low Power Temporary Enable Channel Lock Patrol Event Select Transmit Confirm Background Operations Time-out Timer (TOT) Busy Channel Lockout (BCL) Battery Save Low Battery Alert Safety Check CTCSS/CDCSS DTMF 2-Tone/HDC1200/HDC2400 TM Signalling Logic BOT ID and EOT ID (PTT ID) Troubleshooting Care and Cleaning Optional Accessories Channel Frequency Table 3 Safety and General Information The following general safety precautions as would normally apply, should be observed during all phases of operation, service and repair of this equipment. ◇ This equipment should be serviced by qualified technicians only. ◇ Do not modify the radio for any reason. ◇ Only accessories approved by HYT may be used. ◇ Use only the supplied or an approved antenna. ◇ Don 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. ◇ 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. Air bags inflate with great force. If a radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of the vehicle. ◇ Turn off your radio prior to entering any area with a potentially explosive atmosphere. ◇ 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. ◇ Do not charge your battery in a potentially explosive atmosphere. ◇ Do not expose the radio to direct sunlight over a long time, nor place it close to heating source. ◇ When using your radio, hold the radio in a vertical position with the microphone 3 to 4 centimeters away from your lips. ◇ Body-worn operations are restricted to belt-clips, holsters or similar accessories that have no metallic component in the assembly and that provide at least 1.5 cm separation between the device, including its antenna, and the user's body." 4 Product Inspection Before unpacking the TC-700 portable radio, please inspect the packaging for signs of damage and report any damage to your dealer. Upon unpacking of the TC-700 portable radio, please ensure that all items shipped were received, report any missing or damaged items to your dealer. Accessories Item Qty. (PCS) Antenna 1 Belt Clip 1 Screws 2 Strap 1 Battery 1 Charger 1 Adapter 1 Power Cable 1 Warranty Card 1 Owner’s Manual 1 Declaration of Conformity 1 Note: Frequency band is marked on the label of antenna, if not, identify the frequency band according to the color circle, red indicates UHF, green indicates VHF. Please refer to the label on the radio unit for detailed frequency band information. The radio unit is shipped with screws mounted from the factory. 5 Battery Safety Precautions The battery option is shipped uncharged from the factory. Please charge a new battery or battery that has not been used for a long time prior to use. The maximum capacity of the battery is achieved only after 2 or 3 charging and discharging cycles. When the battery power runs low, please recharge the battery or replace with a refresh one. Initial Use The HYT approved battery is shipped not fully charged at the factory. Prior to using a new battery, please charge it for 12 hours, which applies for Ni-Cd, Ni-MH and Li-Ion battery charged with slow or rapid rate charger. It is recommended to take this step for the first three times of use. When the battery power runs low, please recharge the battery. Applicable Battery Packs To reduce the risk of injury, charge only the battery specified by the manufacturer. Other batteries may burst, causing bodily injury and damage. Caution: 1. Do not short circuit the battery terminals or discard the battery in fire. Never attempt to disassemble the battery. 2. The battery should be charged at 5 ~ 40 , temperature out of this range could °C°C result the battery not fully charged. 3. When charging a battery attached to a radio, turn the radio off to ensure a full charge. 4. Do not cut off the power supply or remove the battery when charging a battery. 5. If the operation time will not increase even though the battery is properly charged, this means the battery life cycle is over, please replace with a new one. 6. Do not return fully charged batteries to the charger for an “extra boost”. This action will significantly reduce battery life. 7. Never charge a battery that is wet. Please dry it with soft cloth prior to charge. All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as jewelry, keys, or beaded chains touch exposed terminals. The conductive material may complete an electrical…

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TC 700 Level Diagram Rx Section IC404AMP ANT C487 SP BP F LPF IC202 C1 35 BP F Q2 07 C2 54 C251 Q2 06 C241 C2 36 C3 12 Q2 04 C2 30 C238 XF 2 0 3 IC204 IC408 IC202 -120dBm -109dBm -1 1 3 dB m -1 2 0 dB m AF VTVM IF 4 9 .9 5 MHz RF center 1st Local 0dBm -101dBm -1 0 3 dB m -105dBm 130mVrms 250mVrms 2nd Local -7 d B m 300mVrms 100mVrms 1W K5 01 Each of the levels plotted from RF to t he first IF is the level that can provide a 12dB SINAD for an SSG signal through a 470pF b coupling capacitor. When AF ouput is adjusted to 1W, adjust the frequency deviation of 1KHz AF level to 3KHz (Wide), 1.5KHz (Narrow). Transmit MIC IC402AMP IC408 C307 D3 05 Q3 04 Q3 02 C312 Q1 11 Q1 01 Q1 02 Q1 03 Q1 04 C312 C101 C105 C111 C117 LPF ANT D1 02 12mVrms 0.8Vrms 60mVrms 150mVrms 0.15Vrms 0.44Vrms AF VTVM RF VTVM 0.62Vrms 4W AF and RF levels are measured at high impedance.

Letter of Justification We hereby declare that the HYT’s Two-way Radio of TC-700U8 which intended to bear the FCC ID: R74TC-700U8 shall be marketed as following: 1) The device is handheld. 2) The FCC identifier is visible at the time of purchase. Marketing the device without the battery installed when the label is in the battery compartment is acceptable. The FCC identifier on the box or additional documentation directing the user as to where to find the FCC label also satisfies this requirement. 3) The user accessible area must not require any special tools for access and the FCC label mustnot be placed on a removable part. (i.e. not on battery cover) 4) The FCC identifier, model no. or FCC logo must be on the label and must meet all general labeling requirements or policies that apply for Certification, Verification or DOC; e.g. for Certification, for handheld devices, the identifier must go on the label but the two part warning statement in Section 15.19(a)3 can go in the manual. 2007/06/27

LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ07040028 FCC ID: R74TC-700U2 IC: 5465A-TC700U2 DATE: 05/24/2007 Page 41 Rev. 00 Front view of EUT Back view of EUT LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ07040028 FCC ID: R74TC-700U2 IC: 5465A-TC700U2 DATE: 05/24/2007 Page 42 Rev. 00 Top view of EUT Bottom view of EUT

FCC ID Label FCC RF Warning Label

FCC ID Label Location FCC RF Warning Label

LONGWAY(SHENZHEN) CERTIFICATION SERVICE CO., LTD. REPORT NO: LW-SZ07040028 FCC ID: R74TC-700U2 IC: 5465A-TC700U2 DATE: 05/24/2007 Page 43 Rev. 00 Internal view-1 Internal view-2

TC-700 Circuit Description Theory of Operation 1. Power Supply Power supply of the radio is derived from the battery, which supplies battery B+ after passing through fuse 3A and then feeds through power switch. The power supplies voltage for three AVRs. 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. In transmit mode, T5C becomes low voltage and Q502 is turned on to supply 5V (T5v) voltage for the transmit circuit. In receive mode, R5C becomes low voltage and Q504 is turned on to supply 5V (R5V) voltage for the receive circuit. Fig. 1 Power Supply Block Diagram 2. PLL Frequency Synthesizer PLL circuit generates the first local oscillator signal for reception and RF signal for transmission. Fig.2 PLL Block Diagram TC-700 Circuit Description 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 diodes 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 appears at MUXOUT pin of IC301. Transmission is forbidden if this condition is detected by microprocessor. 3. 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. TC-700 Circuit Description 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 450KHz ceramic filter (wideband: CF201，narrowband: CF202) to eliminate unwanted signals before it is amplified and detected in IC204. 4） Narrowband/Wideband Switch Circuit Pin WCON and NCON of IC500 outputs wideband (high level) and narrowband (low level) controlling signal respectively to turn on corresponding diode-connector, and to choose ceramic filter CF201 (wideband) or CF202 (narrowband) to filter useless spurious signal. 5） AF Amplifier The resulting AF signal from IC204 enters base band processing chip IC408. The processed AF signal is then amplified by an AF power amplifier (IC401) to drive the speaker. 4. Transmitter 1） AF and Signaling AF signal from the microphone is amplified and low-pass-filtered in IC402 before it enters base band processing chip IC408, which also enters CTC/CDC/DTMF/2-Tone/5-Tone etc signaling 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 TC-700 Circuit Description 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. 4） APC The automatic power control (APC) circuit stabilizes the transmit output 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 proportional to the difference between auto detect voltage and reference voltage output from IC101 (1/2). The output voltage controls FET power. 5. Base Band and Signaling System The block diagram of signaling section is shown as figure 5. Fig. 5 AF and Signaling Circuit 1） CTC/CDC Transmit: CTC/CDC signaling produced by CTC_PLL pass a low pass filter and then enters VCXO. CTC/CDC signaling produced by CTC_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 CTC/CDC 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 out tone, and is then applied to the base band processing IC. The signal in mixed with the audio signal and goes to the VCO。 Receive: Demodulated signal is filtered after passing base band processing IC, and then enters MCU for deco…

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NoP/NPart DescriptionQty Ref. No. Print No. Remark 1 3101052200010Chip capacitor 0402 22PF J 50V 1C100B3G 2 3101054710010Chip capacitor 0402 470PF K 50V 1C101B3F 3 3101054710010Chip capacitor 0402 470PF K 50V 1C104B4F 4 3101050700010Chip capacitor 0402 7PF B 50V 1C105*B4F 5 3101054710010Chip capacitor 0402 470PF K 50V 1C106B4E 6 3101054710010Chip capacitor 0402 470PF K 50V 1C107B4E 7 3101054710010Chip capacitor 0402 470PF K 50V 1C108B4F 8 3101051040060Chip capacitor 0402 0.1UF K 16V 1C109B3F 9 3101060600010Chip capacitor 0603 6PF B 50V 1C110*B4F 10 3101064710000Chip capacitor 0603 470PF K 50V 1C111B3E 11 3101051040060Chip capacitor 0402 0.1UF K 16V 1C112B4E 12 3101054710010Chip capacitor 0402 470PF K 50V 1C113B4E 13 3101051020010Chip capacitor 0402 1000PF K 50V 1C114B4E 14 3101054710010Chip capacitor 0402 470PF K 50V 1C115B3D 15 3101061020000Chip capacitor 0603 1000PF K 50V1C117B4E 16 3101051020010Chip capacitor 0402 1000PF K 50V 1C118B5E 17 3101054710010Chip capacitor 0402 470PF K 50V 1C120B4D 18 3101051030020Chip capacitor 0402 0.01UF K 25V 1C121B4D 19 3101051040060Chip capacitor 0402 0.1UF K 16V 1C122B4C 20 3101061050060Chip capacitor 0603 1UF K 10V 1C123B3C 21 3101054710010Chip capacitor 0402 470PF K 50V 1C124B3C 22 3101062000000Chip capacitor 0603 20PF J 50V 1C125*B5D 23 3101062000000Chip capacitor 0603 20PF J 50V 1C126*B5C 24 3101062490000Chip capacitor 0603 2.4PF B 50V 1C127*B4C 25 3101050600010Chip capacitor 0402 6PF B 50V 1C129*B5C 26 3101062490000Chip capacitor 0603 2.4PF B 50V 1C130*B4C 27 3101061010010Chip capacitor 0603 100PF J 50V 1C131B4C 28 3101054710010Chip capacitor 0402 470PF K 50V 1C132T4E 29 3101054710010Chip capacitor 0402 470PF K 50V 1C133B4C 30 3101060500010Chip capacitor 0603 5PF B 50V 1C134*B4B 31 3101064710000Chip capacitor 0603 470PF K 50V 1C135B4B 32 3101060100010Chip capacitor 0603 1PF B 50V 1C136*B4B 33 3101060100010Chip capacitor 0603 1PF B 50V 1C137B4B 34 3101060500010Chip capacitor 0603 5PF B 50V 1C138*B4B 35 3101061590010Chip capacitor 0603 1.5PF B 50V 1C139B4B 36 3101060300010Chip capacitor 0603 3PF B 50V 1C140*B4B 37 3101060100010Chip capacitor 0603 1PF B 50V 1C141B4B 38 3101061590010Chip capacitor 0603 1.5PF B 50V 1C142*B4B 39 3101050400010Chip capacitor 0402 4PF B 50V 1C144B4B 40 3101054710010Chip capacitor 0402 470PF K 50V 1C145B5F 41 3101061050060Chip capacitor 0603 1UF K 10V 1C146T3B 42 3101051030020Chip capacitor 0402 0.01UF K 25V 1C147B3D 43 3101054710010Chip capacitor 0402 470PF K 50V 1C148B3D 44 3101054710010Chip capacitor 0402 470PF K 50V 1C149T3B 45 3104074750030Ta-capacitor0805 4.7UF M 10V 1C150T4F 46 3101051010030Chip capacitor 0402 100PF J 50V 1C152T5E 47 3101054710010Chip capacitor 0402 470PF K 50V 1C153T4F 48 3101054710010Chip capacitor 0402 470PF K 50V 1C154T4E 49 3101054710010Chip capacitor 0402 470PF K 50V 1C155B3G 50 3101054710010Chip capacitor 0402 470PF K 50V 1C156B3G 51 3101050600010Chip capacitor 0402 6PF B 50V 1C157B3G 52 3101054710010Chip capacitor 0402 470PF K 50V 1C158B3G 53 3101051040060Chip capacitor 0402 0.1UF K 16V 1C159B3G 54 3101062700010Chip capacitor 0603 27PF J 50V 1C161*B4D 55 3101060600010Chip capacitor 0603 6PF B 50V 1C164*B4C 56 3101054710010Chip capacitor 0402 470PF K 50V 1C201B2F 57 3101050400010Chip capacitor 0402 4PF B 50V 1C202*B3F 58 3101051200020Chip capacitor 0402 12PF J 50V 1C203*B2F 59 3101050700010Chip capacitor 0402 7PF B 50V 1C204*B2F 60 3101054710010Chip capacitor 0402 470PF K 50V 1C205B2F 61 3101051040060Chip capacitor 0402 0.1UF K 16V 1C206B1H 62 3101051040060Chip capacitor 0402 0.1UF K 16V 1C208B1H TC-700 UHF Part List1 第1页 / 共15页 NoP/NPart DescriptionQty Ref. No. Print No. Remark 63 3101054710010Chip capacitor 0402 470PF K 50V 1C209B2G 64 3101051020010Chip capacitor 0402 1000PF K 50V 1C210B2G 65 3101055600000Chip capacitor 0402 56PF J 50V1C211*B2G 66 3101054710010Chip capacitor 0402 470PF K 50V 1C212B2G 67 3101051040060Chip capacitor 0402 0.1UF K 16V 1C213B2G 68 3101051040060Chip capacitor 0402 0.1UF K 16V 1C214B1H 69 3101051040060Chip capacitor 0402 0.1UF K 16V 1C215B2H 70 3101051030020Chip capacitor 0402 0.01UF K 25V1C219B2G 71 3.10407E+12Ta-capacitor0805 10UF M 6.3V 1C220B2G 72 3101061050060Chip capacitor 0603 1UF K 10V 1C221T1G 73 3101051820000Chip capacitor 0402 1800PF K 50V1C222T1G 74 3101051040060Chip capacitor 0402 0.1UF K 16V 1C224B2F 75 3101058200000Chip capacitor 0402 82PF J 50V 1C225B1G 76 3101051030020Chip capacitor 0402 0.01UF K 25V 1C226T1G 77 3101051040060Chip capacitor 0402 0.1UF K 16V 1C227T1G 78 3101053300000Chip capacitor 0402 33PF J 50V 1C228B1G 79 3101051040060Chip capacitor 0402 0.1UF K 16V 1C229B1G 80 3101051030020Chip capacitor 0402 0.01UF K 25V 1C230B1G 81 3101051040060Chip capacitor 0402 0.1UF K 16V 1C231T1H 82 3101050400010Chip capacitor 0402 4PF B 50V 1C233B1F 83 3101051030020Chip capacitor 0402 0.01UF K 25V 1C236B1E 84 3101051030020Chip capacitor 0402 0.01UF K 25V 1C237B1E 85 3101051020010Chip capacitor 0402 1000PF K 50V 1C238B1E 86 3101051030020Chip capacitor 0402 0.01UF K 25V 1C239B1E 87 3101058200000Chip capacitor 0402 82PF J 50V 1C240B1E 88 3101051030020Chip capacitor 0402 0.01UF K 25V 1C241B2E 89 3101057590000Chip capacitor 0402 7.5PF(±0.1pF)(50V)1C243B2D 90 3101050900000Chip capacitor 0402 9PF B 50V 1C244*B2D 91 3101050400010Chip capacitor 0402 4PF B 50V 1C245*B2D 92 3101051030020Chip capacitor 0402 0.01UF K 25V 1C246B3D 93 3101050700010Chip capacitor 0402 7PF B 50V 1C247*B2D 94 3101050900000Chip capacitor 0402 9PF B 50V 1C248*B2D 95 3101051040060Chip capacitor 0402 0.1UF K 16V 1C251B2C 96 3101051010030Chip capacitor 0402 100PF J 50V 1C252B3C 97 3101051010030Chip capacitor 0402 100PF J 50V 1C253B2C 98 3101051040060Chip capacitor 0402 0.1UF K 16V 1C254B2B 99 3101050500010Chip capacitor 0402 5PF B 50V 1C255*B3B 100 3101051200020Chip capacitor 0402 12PF J 50V 1C256*B3B 101 3101050400010Chip capacitor 0402 4PF B 50V 1C257*B3B 102 3101051010030Chip capacitor 0402 100PF J 50V 1C258B3B 103 3101051200020Chip capacitor 0402 12PF J 50V 1C259*B3B 104 3101050800000Chip …

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TC-700 Adjustment Description Tune Up Procedure Adjust the radio by PC programming software or by manual adjustment. In manual adjustment mode, the adjustment method is shown as follows: (Refer to “Software Specification” for the manual adjustment mode) Required Test Instrument Radio Communication Test Set 1 set Scanner 1 set 3A/10V Power Supply 1 set Digital Voltmeter 1 set 3A Ammeter 1 set Adjustment 1. Adjustment in user mode Firstly ground the SELF point, turn on the power by holding down TK for 2 seconds, and then the radio enters 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 reset is completed). Refer to All Reset Mode in Software Specification for more details: VCO Measurement Adjustment Item Condition Test Instrument TerminalPartsMethod Specification /Remarks 1. Setting Power supply voltage 1. CH: TX high 3.9V±0.1V 2.Transmit VCO lock voltage 2. TX Low Check >0.5V 1. CH: RX high 3.9V±0.1V 3.Receive VCO lock voltage 2. RX low Digital Voltmeter CV TC301 TC302 Check >0.5V 2. Manual Adjust Mode Description (1) Enter the manual adjust mode Turn the power on by holding down TK and SK2 key simultaneously for 2 seconds, the radio enters manual adjust mode with red LED flashes twice. (TK: Top key; SK1: Side key1; SK2: Side key2) (2) Channel number on the channel selector knob Each channel number on the channel selector knob is defined a setting item. The bandwidth is 25 KHz and low frequency (F1) each time the channel selector knob is rotated. TC-700 Adjustment Description (3) SK2 key Used to set the frequency. 1 point tuning is used to adjust center frequency, 3 point tuning adjusts F1, F3, F5 and 5 point tuning adjusts F1-F5. The frequency toggles from low frequency to high frequency. Green LED flashes once when F1 is selected. (4) TK key Use to toggle the channel bandwidth among 25 KHz, 20 KHz and 12.5 KHz. Red LED flashes once when the bandwidth is 25 KHz. (5) PTT/SK1 PTT→Increase SK1→Decrease PTT/SK1 is pressed to adjust upward/downward. Red LED glows indicating the maximum adjust value and green LED indicating the minimum value. Hold down the key to increase/decrease the adjust value continuously. Press PTT key to save the BATT LOW and SQL settings, then green LED glows once. (6) Select adjustment item group The first group of adjustment item is selected when the radio enters the manual adjust mode. Turn to CH16 and press PTT key to enter the next group. Press again to return to the first group. Orange LED flashes once when the first group is selected. Orange LED flashes twice when the second group is selected. (7) Frequency Setting (can be set via programming software) 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} TC-700 Adjustment Description 3. Adjustment Method Turn the power on by holding down TK and SK2 key simultaneously for 2 seconds, the radio enters manual adjust mode with red LED flashes twice. Refer to Manual Adjust Mode in TC-700 Software Specification for more details. (1) Transmitter Item Condition Test InstrumentMethod Purpose Adjust a channel Enter the adjust mode; Turn to CH1; TX mode. Radio Communication Test Set; TX Test Adjust VR1 Frequency Error ≤100Hz 1. TX power Low Enter the adjust mode. Turn to CH1. Adjust at 5 point (wideband). PTT key (increase) S…

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