R74TM-800U1Mobile Radio

TM-800 UHF SERVICE MANUAL 123 Troubleshooting Flow Charts Normal Power-on alert tone? MCU Check RF circuit cant be driven Yes Speaker works well? No Replace the speaker No ` 9.8304MHz works normally? Yes Read available or not? Yes Q117 works normally? Replace Q117 Check 5V MCU works well Pin10 is of high level? Check the control circuit Check read circuit Reset No Yes Yes Yes No No Yes TM-800 UHF SERVICE MANUAL 124 Normal power supply? VCO Check Replace Q116 No Rx oscillates ? And CV voltage is normal? Yes Q706 works normal? No ` Check Q703 outputs normally? Check Q703 Normal feedback? Check Q124 Check power supply circuit. Check CPU data circuit. 16.8MHz oscillates? Q705 works normal? Replace Q706 Replace Q705 Yes Yes Yes Yes Yes Yes No No No No No TM-800 UHF SERVICE MANUAL 125 Power supply of AF IC126 is normal? No receive Output of IC126 is normal? Output of electronics volume IC125 is normal? Check IC126 Output of IC104 is normal? The 2nd local oscillator works normally? L135 works normally? Is there any input in IC119 PIN16 IF? Is there any RF signal? Replace L135 Check X105 Check IC125 Check work status of IC119 &peripheral components Check VCO FPC & Speaker work normally? No No No Check Q601 pass Yes Output of IC106 is normal? Check IC104 Output of IC121 is normal? Check IC106 Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No Check power supply circuit. TM-800 UHF SERVICE MANUAL 126 No output Power supply works normally? Check power supply circuit Check Q131 & Q110 Check driver stage. Check transistor Bias voltage and low pass network Repair transmission network. Check the suited network. VCO maintenance Flow chart Replace Q128 Replace Q127 Completed Completed Completed Control voltage is normal? Current is normal? Driver stage is normal? Normal Power Normal power? Normal power? No Yes Low High NoYes Yes Yes Yes No Yes No No TM-800 UHF SERVICE MANUAL 127 Exploded View

THANK YOU! Thank you for your purchase of HYT mobile radio TM-800. We believe this easy-to-use radio will provide you with dependable 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 TM-800 VHF Mobile Radio TM-800 UHF Mobile Radio HOT SURFACE Avoid contact during prolonged use Do not touch the metal surface of the radio while it is in use. Do not mount the radio such that the chassis can come in contact with skin. High temperatures may burn you skin. MANDATORY SAFETY INSTRUCTIONS TO INSTALLERS AND USERS ════════════════════════════════════════════════════════════════ ● Use Only manufacturer or dealer supplied antennas. ● Antenna minimum safe distance: 82cm (32 inches). ● Antenna used for this transmitter must not exceed an antenna gain of 5.5dBi (for TM-800UHF) and 3dBi (for TM-800VHF). The FCC (Federal Communications Commission) has adopted a safety standard for human exposure to RF energy which is below the OSHA (Occupational Safety and Health Act) limits. ● Antenna mounting: The antenna supplied by the manufacturer or radio dealer must not be mounted at a location such that during radio transmission, any person can come closer than the above indicated minimum safe distance to the antenna (i.e. 82cm/32inches). ● To comply with current FCC RF Exposure limitations, the antenna must be installed at or exceeding the minimum safe distance indicated above, and in accordance with the requirements of the antenna manufacturer or supplier. ● Vehicle installation: The antenna can be mounted at the center of a vehicle metal roof or trunk lid if the minimum safe distance is observed. 2 Antenna substitution: Don’t substitute any antenna for the one supplied or recommended by the manufacturer or radio dealer. You may be exposing person(s) to excessive radio frequency radiation. You may contact your radio dealer or the manufacturer for further instructions. Warning Maintain a separation distance from the antenna to person(s) at least 82cm (32inches). “This transmitter is authorized to operate with a maximum duty factor of 50%, in a typical push-to-talk mode, for satisfying FCC RF exposure compliance requirements.” 3 Contents Caution MANDATORY SAFETY INSTRUCTIONS User Safety, Training, and General Information Compliance with RF Energy Exposure Standards FCC Compliance Precautions Product Inspection Radio Installation and Warnings Radio Overview Basic Operations Turn the Radio On/Off Adjust the Volume Monitor Select a Channel Select a Zone Receive Transmit Selectable Power Level Beginning / End of Transmission ID Channel Scan Busy Channel Lockout (BCL) BCL Override DTMF Call Code Squelch Time-Out-Timer (TOT) Emergency Call Stun Programmable Auxiliary Functions Reverse Frequency Talkaround Selectable Squelch Level User Selectable Tone (UST) Public Address 4 Dual Home Channels Horn Alert Selectable 2-Tone Encode Selectable 5-Tone Encode Display Frequency Display Label Display Mode LCD Backlight Compander Scrambler GPS Report HDC system User Set Mode Appendix 1 Entering Characters Optional Accessories 5 User Safety, Training, and General Information READ THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE USING YOUR HYT MOBILE RADIO. „ Compliance with RF Energy Exposure Standards Your HYT mobile radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE and ICNIRP exposure limits for occupational/controlled RF exposure environment at operating duty factors of up to 50% transmitting and is authorized by the FCC for occupational use only. In terms of measuring RF energy for compliance with the FCC exposure guidelines, your radio radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. Your HYT mobile radio complies with the following of R F e n e r g y exposure standards and guidelines: z United States Federal Communications Commission, Code of Federal Regulations; 47CFR part 2 sub-part J z American National Standards Institute (ANSI)/Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1992 z Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1999 Edition z International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998 Operational Instructions and Training Guidelines To ensure optimal performance and compliance with the occupational/controlled environment RF energy exposure limits in the above standards and guidelines, users should transmit no more than 50% of the time and always adhere to the following procedures: Transmit and Receive To transmit (talk), push the Push-To-Talk (PTT) button; to receive, release the PTT button. Approved Accessories For a list of HYT approved accessories, see the accessories page of this user manual or visit the following website which lists approved accessories: http://www.hyt.com.cn. 6 „ FCC Compliance Part 15 Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the re…

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Protect D135 Protect D133 Protect D137 SW IC127 PSWSBC IGN Q142AVR IC115 8V Q116 Filter AVR 5V SW SW Q131 Q132 8T 8R 8RC 8TC AVR 3.3V AVR 9V D131 +B SB 8V 8C 5V 3.3V 9V +B IC503 CPU LCD PTT HOOK D505--D512 GLED*8 Q501 Q502 Rotary SW X5019.8304MHz R E S E T ENCODE K501--K508 PF*8 D515 Q503 Q504 K509 Q507 MIC IN MIC 1 SW SW SW SW SW ASSY VDD 5VIC501SB LED PLL IC IC 801LPF Q804,Q806 RX VCO TX VCO Q705Q706 Q704 SWSW SW Q702 Q701 MDBuff AMP Q703 AMP LPF 16.8MHz X101 Q124 Buff AMP Q126 D117 SW Data CLK LE ST ULQ806 Q801 SW D801 SW Q802,Q803 MB 5V 8C 8C Q127 Q128 IC102 TX/RX SW ANT DC AMP DET DET PCO Drive AMPDrive AMPfinal AMP D124 D127,D128 IC118D105 D106 8T LPF 8T 8T ATT 50ohm50ohm 8T8T D114 SW 8R Q147 Local AMP 8R LPF BPF Q601 RF AMP 8R BPFBPF D603D602D601 PA Q125 8R Mixer CV IF AMPQ138,Q144 Q145,Q146SW D119 W/N SW D122 73.05M 73.05M SW SW D139 D138Narrow Wide W/N Q118 IF AMP 8R IF BPF IF BPF SW D116 W/N 450KHz 450KHz SW D115Narrow Wide W/N IF BPF IF BPF 73.5MHz QUAD C237,L135,R231 FM IC IC119 AF SW Q140 8RC AF IC109 5V HPF SW DET SQL Q121,D110 Noise AMPAF Mute Q108 IC121 SW SW Q109 IC 106 Codec AMP Filter TCLK,TDATA DI/O,RDF/FD DIR,SCLK X103 3 . 6 8 6 4 M H z AMP IC104 Q T / D Q T IC107 CPU Filter DTMF IC122 X104 3.579545MHz SD ACK,STD PD IC125 M62364FP AFin Vol adjust Q114 SP Mute IC126 AF SB OUT1 OUT2 OUT3 OUT4 AMP DT,CK,LD 5V IC104 AMP AFinAF out MIC in 2T/5T,DTMF MSK MIC out IC121 SW PA AF out C D C S S / C T C S S MD IC110 CV PCO CH select MIC 1 X102 9.8304MHz BEAT SHIFT TXD/RXD E2PROMFLASH CPU TXD/RXD CDCSS,CTCSS DTMF 2T/5T IC125,IC106 PLL IC APC 8RC W/N T/R IGN SBC 8TC BEEP MUTE RSSI CH Encode VOL level PTT PSW RS232 IC105IC103 J111 X105 TM800U block diagram PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn

Top view of EUT Bottom view of EUT Right view of EUT Left view of EUT Front view of EUT Back view of EUT The Component of EUT - Mic

Detached view of EUT-1 Detached view of EUT-2 Detached view of EUT-3 Detached view of EUT-4

Detached view of EUT-1 Detached view of EUT-2 Detached view of EUT-3 Detached view of EUT-4

TM-800 UHF SERVICE MANUAL 77 Circuit Description 1. Frequency Configuration The receiver utilizes double conversion superheterodyne. The first IF is 73.05MHz and the second is 450KHz. The first local oscillator signal is supplied by PLL circuit. The second local oscillator signal (73.5MHz) is generated from TCXO (73.5MHz); The PLL circuit also generates the frequencies needed in the transmitter (See Fig.1). Frequency Range: U1: 400 MHz—470MHz U2: 450 MHz—512MHz U3: 480 MHz—526MHz U4: 440 MHz—490MHz U5: 350 MHz—400MHz; 2. Receiver Circuit The receiver section configuration is shown as Fig. 1. Figure 1 Receiver Section Configuration 2.1 RF AMP BPF It consists of BPF (D603, D602, D601) and RF amplifier (Q601). The range of bandpass frequency (U1: 400 MHz—470MHzU2: 450 MHz—512MHz U3: 480 MHz—526MHzU4: 440 MHz—490MHzU5: 350 MHz—400MHz). The signal is filtered by the RF Amp BPF to eliminate unwanted signals before going to the first mixer. 2.2 The First Mixer The signal from RF AMP BPF is mixed with the first local oscillator signal from PLL circuit in the double-balance mixer (Q138, Q144, Q145, Q146) to generate a 73.05MHz first IF signal. The first IF signal is then fed through two crystal filters (N: XF101, XF103; W: XF102, XF104) to further remove spurious signals. TM-800 UHF SERVICE MANUAL 78 2.3 IF Amplifier The first IF signal is amplified by Q125, Q118 and then enters IC119TA31136FN. The signal is mixed with the second local oscillator signal (73.05MHz) to create a 450KHz second IF signal. The second IF signal is then fed to a ceramic filter (N: CF101, CF103; W: CF102, CF104) to eliminate unwanted signals. The resulting signal is detected by IC119 and output from Pin9 as an AF signal. 2.4 AF Amplifier The AF signal from IC119 is amplified by IC109 before being filtered. The resulting AF signal passes through Q108AF MUTEand IC121(electronic switch) , then is amplified by IC106 ( the received signalling is inputted into CPU for decoding) and IC104. The amplified signal is fed to IC125 (volume control) and Q114 (SP MUTE) before entering AF AMP (IC126). The outputted AF signal is then delivered to the speaker through control panel. 2.5 Squelch The AF signal from IC119 is amplified by IC109 again, and then filtered to remove noise signals. The noise signal is amplified by Q121 and rectified by D110 to produce an ASQ level. The ASQ level is then compared in CPU (IC120) to generate a level which controls AF MUTE and SP MUTE. IC120 determines whether to output sounds from the speaker by controlling Q108, Q114. 3. Transmitter Circuit Figure 2 Transmitter Section Configuration 3.1 MIC Circuit and Modulation Circuit The AF signal from MIC is amplified by IC104 after passing through the MIC control switch (Q507). The resulting signal is then amplified by IC106 and pre-emphasized, encoded. It is passed to IC121 (electronic switch) before reaching IC125. The signalling is inputted into IC125 and enters VCO for modulation. TM-800 UHF SERVICE MANUAL 79 3.2 Driver and Final Power Amplifier Circuit TX-RF signal is outputted from Q703 in VCO circuit and amplified by Q126, Q127 and Q128. The amplified signal is then fed to IC102 (Power Module) and passes through LPF before reaching the antenna terminal. 3.3 APC The APC is used to keep the power output at a constant preset value. D105 and D106 transform the signal from detector into DC voltage which is then compared with the reference voltage from CPU in IC118 and outputted as DC control voltage. The DC control voltage controls the output power by controlling the grid of IC102. 4. PLL Circuit PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission. PLL circuit consists of TX frequency oscillator (Q701), RX frequency oscillator (Q702), buffer amplifier (Q703), RF amplifier (Q124), PLL IC (IC801), LPF (Q804, Q805) and TX/RX VCO control switch (Q704, Q706). In transmit mode, IC120 transmits the frequency data to PLL IC. Q704 is turned on to activate TX VCO. The outputted signal is amplified by Q703, Q124, and then divided by PLL IC into 2.5KHz, 5KHz or 6.25KHz signal. The divided signal is compared with 2.5KHz, 5KHz or 6.25KHz reference signal from 16.8MHz crystal oscillator (2.5 PPM frequency stability) in the phase comparator. The frequency control voltage outputted from the phase comparator is sent to TX VCO after passing through LPF (Q804, Q805). In the meantime, modulation signal (TX) is passed to TX VCO for frequency modulation. The working principle in receive mode is similar to that in transmit mode. Figure 3 PLL Circuit TM-800 UHF SERVICE MANUAL 80 5. Control Circuit Circuit in this section is comprised of CPU, reset IC, power supply controller and flash ROM. 5.1 CPU IC120 (CPU) operates at 9.8304MHz. It controls the data transmission between receive circuit, transmit circuit, control circuit, display circuit and peripheral circuit. Figure 4 Control Circuit 5.2 Power Supply Power supply of the radio is derived from the battery which supplies battery B+. D135 and D137 are over-voltage protection Diodes. Power-on/off can be controlled by software. Figure 5 Power Switch Circuit Vout provides power supply to IC115, IC114, IC113, and IC111, which produces 8V, 9V, 5V, and 3.3V voltage to the circuit. TM-800 UHF SERVICE MANUAL 81 6. Display Circuit Display circuit is comprised of CPU (IC503), LCD module, LED and other components. Radio features are programmable by PF1-PF6. Data is displayed on the 12-digit and 4-digit dot matrix LCD in alphanumeric form. Figure 6 Display Circuit

TM-800 UHF SERVICE MANUAL 89 Component Description 1. TX-RX Unit 2. DISPLAY UNIT Ref. No. Part Name Type Description IC501 IC TA7805F Voltage supply. IC 502 IC R3111H421C Voltage detector. IC 503 IC UPD780112 Display CPU. Ref. No. Part Name Type Description IC102 IC Power module Power module IC103 IC AT29C040-90T1 Flash ROM IC104 IC NJM2904V Single-supply dual operational amplifier IC105 IC AT2408N12.5S EEPROM IC106 IC AK2346 Audio processor IC107 IC TA75W558FU Dual operational amplifier IC108 IC TC75W51FU Dual operational amplifier IC109 IC NJM4558M Dual operational amplifier IC110 IC NJM2904V Single-supply dual operational amplifier IC111 IC XC62FP3302P Positive voltage regulator IC113 IC TA7805F Positive voltage regulator IC114 IC TA78L09 Positive voltage regulator IC115 IC TA7805S Positive voltage regulator IC116 IC TA75S01F Single operational amplifier IC117 IC TA75S01F Single operational amplifier IC118 IC TA75W01FU Dual operational amplifier IC119 IC TA31136FN IF detector IC120 IC M16C CPU IC121 IC BU4066BCFV Quad analog switch IC122 IC BU8872FS DTMF Receiver IC125 IC M62364FP D/A converter with buffer amplifiers IC126 IC TDA8561Q Power amplifier IC127 IC TC4013BF Dual D-type Flip-flop TM-800 UHF SERVICE MANUAL 90 Part List 1 „ Tx-Rx Unit No.Part No.Material DescriptionRef. No. AddressRemarks 13101061050000 Chip capacitor 0603 1UFC101B10N 23101061020000 Chip capacitor 0603 1000PFC102B9M 33101071050010 Chip capacitor 0805 1UFC103T9D 43101064700000 Chip capacitor 0603 47PF C104T8D 53101066830000 Chip capacitor 0603 0.068UFC105T7D 63101061020000 Chip capacitor 0603 1000PFC107B1K 73101064710000 Chip capacitor 0603 470PFC108B9G 83101061010010 Chip capacitor 0603 100PFC109B7E 93101061000000 Chip capacitor 0603 10PF C110B9H 103101061020000 Chip capacitor 0603 1000PFC111T6H 113101061030010 Chip capacitor 0603 0.01UFC112B9I 123101061020000 Chip capacitor 0603 1000PFC113T8G 133101061030010 Chip capacitor 0603 0.01UFC114B8H 143101061030010 Chip capacitor 0603 0.01UFC115B8I 153101061020000 Chip capacitor 0603 1000PFC116T8G 163101064710000 Chip capacitor 0603 470PFC117B8E 173101061020000 Chip capacitor 0603 1000PFC118T8G 183101060300010 Chip capacitor 0603 3PF C119T8HTM800U(1) 193101060100010 Chip capacitor 0603 1PF C119T8HTM800U(2) 203101060100010 Chip capacitor 0603 1PF C119T8HTM800U(3) 213101060100010 Chip capacitor 0603 1PF C119T8HTM800U(4) 223101060400010 Chip capacitor 0603 4PF C119T8HTM800U(5) 233101060300010 Chip capacitor 0603 3PF C120T8HTM800U(1) 243101060100010 Chip capacitor 0603 1PF C120T8HTM800U(2) 253101060100010 Chip capacitor 0603 1PF C120T8HTM800U(3) 263101060100010 Chip capacitor 0603 1PF C120T8HTM800U(4) 273101060600010 Chip capacitor 0603 6PF C120T8HTM800U(5) 283101064710000 Chip capacitor 0603 470PFC121B5H 293101064710000 Chip capacitor 0603 470PFC122B9I 303104082260040 Ta-capacitor 1206 22UFC123T10K 313101061000000 Chip capacitor 0603 10PF C124T8HTM800U(1) 323101060400010 Chip capacitor 0603 4PF C124T8HTM800U(2) 333101060400010 Chip capacitor 0603 4PF C124T8HTM800U(3) 343101060400010 Chip capacitor 0603 4PF C124T8HTM800U(4) 353101060400010 Chip capacitor 0603 4PF C124T8HTM800U(5) 363101064710000 Chip capacitor 0603 470PFC125T8I 373101064710000 Chip capacitor 0603 470PFC126T8H 383101061020000 Chip capacitor 0603 1000PFC127B8F 393101061020000 Chip capacitor 0603 1000PFC128B8F 403101061020000 Chip capacitor 0603 1000PFC129B8F 413101061500010 Chip capacitor 0603 15PF C130B7F 423101061020000 Chip capacitor 0603 1000PFC131B8F 433101060900010 Chip capacitor 0603 9PF C132B9D 443101064710000 Chip capacitor 0603 470PFC133B4F 453101061500010 Chip capacitor 0603 15PF C134B4FTM800U(1) 463101061000000 Chip capacitor 0603 10PF C134B4FTM800U(2) TM-800 UHF SERVICE MANUAL 91 Part List 1 „ Tx-Rx Unit No.Part No.Material DescriptionRef. No. AddressRemarks 473101061000000 Chip capacitor 0603 10PF C134B4FTM800U(3) 483101061000000 Chip capacitor 0603 10PF C134B4FTM800U(4) 493101061500010 Chip capacitor 0603 15PF C134B4FTM800U(5) 503101061000000 Chip capacitor 0603 10PF C135B9E 513101060100010 Chip capacitor 0603 1PF C136B9E 523101060100010 Chip capacitor 0603 1PF C137B9E 533101062000000 Chip capacitor 0603 20PF C138B9E 543101064710000 Chip capacitor 0603 470PFC139B4F 553101061200000 Chip capacitor 0603 12PF C140B9E 563101064710000 Chip capacitor 0603 470PFC141B5G 573101064710000 Chip capacitor 0603 470PFC142B5E 583101064710000 Chip capacitor 0603 470PFC143B5G 593101064710000 Chip capacitor 0603 470PFC144B5G 603101060800010 Chip capacitor 0603 8PF C145B4HTM800U(1) 613101060800010 Chip capacitor 0603 8PF C145B4HTM800U(2) 623101060800010 Chip capacitor 0603 8PF C145B4HTM800U(3) 633101060800010 Chip capacitor 0603 8PF C145B4HTM800U(4) 643101060900010 Chip capacitor 0603 9PF C145B4HTM800U(5) 653101064710000 Chip capacitor 0603 470PFC146B5H 663101061010010 Chip capacitor 0603 100PFC147B5H 673101064710000 Chip capacitor 0603 470PFC148B5H 683101064710000 Chip capacitor 0603 470PFC149T5F 693101064710000 Chip capacitor 0603 470PFC150B5I 703101071200000 Chip capacitor 0805 12PF C151B4I 713101064710000 Chip capacitor 0603 470PFC152T5G 723101064710000 Chip capacitor 0603 470PFC153T4H 73NCC154B7CTM800U(1) 74NCC154B7CTM800U(2) 753101064710000 Chip capacitor 0603 470PF C154B7CTM800U(3) 76NCC154B7CTM800U(4) 77NCC154B7CTM800U(5) 783101064710000 Chip capacitor 0603 470PFC155T4G 793101061040010 Chip capacitor 0603 0.1UFC156T4H 803101064710000 Chip capacitor 0603 470PFC157T5K 813101064710000 Chip capacitor 0603 470PFC158B7D 823101064710000 Chip capacitor 0603 470PFC159T4J 833101064710000 Chip capacitor 0603 470PFC160T3J 843101061040010 Chip capacitor 0603 0.1UFC161T4J 853101064710000 Chip capacitor 0603 470PFC162B5D 863101061020000 Chip capacitor 0603 1000PFC163T5M 873101061040010 Chip capacitor 0603 0.1UFC164T3J 883101061030010 Chip capacitor 0603 0.01UFC166B5D 893101061030010 Chip capacitor 0603 0.01UFC167B5C 903101080500000 Chip capacitor 1206 5PF C168T4LTM800U(1) 913101080400000 Chip capacitor 1206 4PF C168T4L…

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TM-800 UHF SERVICE MANUAL 128 Part List 2 No Part No. Part Description Material QTY Remark 1 6000224000000 Rear cover PC+ABS (C1200HF) 1 2 7102623020000 Self-tapping screws 2.6*23 Mild steel 14 3 6300025000000 Shield cover ADC12 1 4 6201184000000 Shield sheet copper Phosphor Bronze ( C5210P) 1 5 7102004020040 Bolt PTSФ2X4 Mild steel 7 6 6100226000000 Seal gasket (shield) Silica gel 1 7 5202015100030 15PIN Plug 1 8 7600009000000 Shield cover conduction cloth (power amplification) 1 9 6201190000000 Shield cover (power amplification module) SUS301-1/2H 1 10 3601004000570 Power amplification module 1 11 7102508000100 Machine screws M2.5*8 Stainless steel 4 12 7102606020000 Self-tapping screws 2.6*6 Mild steel 11 13 TM-800 PCB (main board) 1 14 7102606021000 T8-head self-tapping screws 2.6*6 Mild steel 4 15 4200090000000 Power cable (mobile radio) 1 16 6201175000010 External board SUS304-1/2B 1 17 6100227000000 Seal gasket (external board) Silica gel 1 18 7102508000100 Machine screws M2.5*8 Stainless steel 4 19 4405100001000 Antenna pedestal Bronze 1 20 6300024000010 Aluminum chassis base ADC12 1 21 4210100000100 Connecting line (mobile radio) 1 100mm 22 6100228000000 Seal ring (front case) Silica gel 1 23 7102606020000 Self-tapping screws 2.6*6 Mild steel 11 24 TM-800 PCB (control panel) 1 25 7500070000000 TM-800 Sponge cushion (speaker) 1 26 5001020000000 speaker 1 27 6100138000000 Speaker silica gel gasket Silica gel 1 28 7400096000000 Speaker net 1 29 6100136000000 Numeric key Silica gel 1 30 6000231000000 Light guide PMMA 1 31 6000228000000 TM-800 Channel knob PC+ABS(C2950HF) 1 32 6201066000000 TC-278/378 Inner liner (knob) 0.20mm 0.20mm Phosphor copper 11 33 6000223000010 Control panel PC+ABS (C1200HF) 1 34 7300007100000 TM-800 Contact combination switch 1

TM-800 UHF SERVICE MANUAL 143 Adjustment Description The radio can be adjusted by PC programming software or by manual adjustment. Manual adjustment procedure of TM800 is as follows. (Refer to “Test Mode” and “Adjustment mode” in the section Radio Modes.) Instrument: Radio Communication Test Set 1 set Scanner 1 set 20A/30V Power Supply 1 set Digital Voltmeter 1 set Power Meter 1 set Signal Line (with dummy load) 1 pcs Adjustment: 1. Download Connect the radio with PC by programming cable; Turn the radio on. Click “Download” on software interface; Select the desired program and click “Open”, download starts. Click “End” when download is completed. Turn the radio off and remove the programming cable. 2. Initialization It’s necessary to set the frequency and initialize the radio before adjustment because there is no needed information in FLASHROM when the radio is manufactured. Turn the power on while holding down [PF2], then press [PF3], [PF4] and [PF6] in sequence. The LED on control panel turns green from red, indicating that the initialization is completed. 3. Adjustment Some items can be adjusted in conventional mode and the others in manual adjust mode. Turn the power on to enter conventional mode. Switch the power off and back on while holding down [PF6], the radio enters manual adjust mode. The channel number is displayed on the LCD. Frequency list TM-800 UHF SERVICE MANUAL 144 Model RX/TX 1 ( FC ) 2 (F L ) 3 (FH ) 4 5 6 7 8 RX(MHz) 155.15 136.15 173.85 145.55 164.55 155.00 155.20 155.40 0 V TX(MHz) 155.00 136.00 174.00 145.50 164.50 155.00 155.20 155.40 RX(MHz) 481.15 450.15 511.85 465.55 496.55 481.00 481.20 481.40 1 U1 TX(MHz) 481.00 450.00 512.00 465.50 496.50 481.00 481.20 481.40 RX(MHz) 375.15 350.15 399.85 362.55 387.55 375.00 375.20 375.40 2 U2 TX(MHz) 375.00 350.00 400.00 362.50 387.50 375.00 375.20 375.40 RX(MHz) 435.15 400.15 469.85 417.55 452.55 435.00 435.20 435.40 3 U3 TX(MHz) 435.00 400.00 470.00 417.50 452.50 435.00 435.20 435.40 RX(MHz) 465.15 440.15 489.85 452.55 477.55 465.00 465.20 465.40 4 U4 TX(MHz) 465.00 440.00 490.00 452.50 477.50 465.00 465.20 465.40 RX(MHz) 503.15 480.15 525.85 491.75 515.25 503.00 503.20 503.40 5 U5 TX(MHz) 503.00 480.00 526.00 491.70 515.20 503.00 503.20 503.40 RX(MHz) 425.15 400.15 449.85 412.55 437.55 425.00 425.20 425.40 6 U6 TX(MHz) 425.00 400.00 450.00 412.50 437.50 425.00 425.20 425.40 VCO Measurement Adjustment Item Condition Test Instrument Terminal Part Method Specification / Remarks 1. Power supply 1.Power supply voltage DC13.6V Note:1. This radio may be installed in negative ground electrical systems only. Reverse polarity will cause the cable fuse to blow. Check the vehicle ground polarity before installation to prevent wasted time and effort. 2. If DC power is to be controlled by the vehicle ignition switch, a switching relay should be used to switch the positive power lead. The vehicle ignition switch then controls DC to the relay coil. 1.CH: TX HI 7.1V±0.1V 2. VCO lock voltage (TX) 2.CH: TX LO TC1 Check 1.8V 1.CH: RX HI 7.1V±0.1V 3. VCO lock voltage (RX) 2.CH: RX LO Digital VoltmeterCV TC2 Check 1.8V TM-800 UHF SERVICE MANUAL 145 Transmitter Measurement Adjustment Item Condition Test InstrumentTerminalPart Method Specification /Remarks 4.TX Frequency Enter adjustment item “1”, each Ch corresponds to a specific TX Freq Radio Communication Test Set ANT Adjust software settings Adjust to Ch frequency Error <50Hz High power: PO=50±0.5W I≤12.0A Check High power Middle power: PO=25±0.5W I≤8.0A Check Middle power 5.TX Power Each Ch corresponds to a specific TX Freq, enter adjustment item “2”, adjust H/M/L power Radio Communication Test Set Ammeter ANT Adjust software setting (first value is 220) and VR101, press [PF6] to save and enters the next item. Low power: PO=5±0.5W I≤5.0A Check Low power Check deviation at CH L/C/H: 3.75±0.1KHz (W) 6. Max. Deviation 1. Each Ch corresponds to a specific TX Freq, enter adjustment item “3”, turn to CH (C), CH(L), CH(H), CH(nC) Radio Communication Test Set FILTER: 0.05-15KHz AF:1KHz 50mV ANT MIC Jack Adjust software settings, press [PF6] to save and enters the next item Check deviation at CH L/C/H: 1.75±0.1KHz (N) 7. Modulation Sensitivity Check deviation: 2.6KHz-3.4KHz (W) 1.3KHz-1.7KHz (N) 8. Modulation Distortion 1. Each Ch corresponds to a specific TX Freq Radio Communication Test Set FILTER: 0.05-15KHz AF:1KHz 7mV ANT MIC Jack ≤3% Check TM-800 UHF SERVICE MANUAL 146 9.CDCSS Balance Each Ch corresponds to a specific TX Freq, enter adjustment item “4” Radio Communication Test Set FILTER LPF: 300Hz ANT Change CDCSS settings with Selector Knob Check waveform 10. CTCSS Deviation Each Ch corresponds to a specific TX Freq, enter adjustment item “5”, adjust 67Hz/127.3Hz/254.1Hz CTCSS Radio Communication Test Set FILTER LPF: 300Hz ANT Change CTCSS settings with Selector Knob Adjust deviation to 0.75KHz±0.10KHz (W) 0.37KHz±0.05KHz (N) 11. CDCSS Deviation Each Ch corresponds to a specific TX Freq, enter adjustment item“6” Radio Communication Test Set FILTER LPF: 300Hz ANT Change CDCSS settings with Selector Knob Adjust deviation to 0.75KHz±0.10KHz (W) 0.37KHz±0.05KHz (N) 12. DTMF Deviation Each Ch corresponds to a specific TX Freq, enter adjustment item “7” Radio Communication Test Set FILTER LPF: 3KHz ANT Change DTMF settings with Selector Knob 3.0KHz±0.1KHz (W) 1.5KHz±0.1KHz (N) 13. MSK Each Ch corresponds to a specific TX Freq, enter adjustment item “8” Radio Communication Test Set FILTER LPF: 3KHz ANT Change MSK settings with Selector Knob 3.0KHz±0.1KHz (W) 1.5KHz±0.1KHz (N) 14. 2-TONE/ 5-TONE Each Ch corresponds to a specific TX Freq, enter adjustment item “9” Radio Communication Test Set FILTER LPF: 3KHz ANT Change 2-tone/ 5-tone settings with Selector Knob Adjust deviation to 3.0KHz±0.10KHz (W) 1.5KHz±0.1KHz (N) TM-800 UHF SERVICE MANUAL 147 Receiver Measurement Adjustment Item Condition Test Instrument TerminalPart Method Specification /Remarks 15. RF bandpass filter Enter adjustment item “1…

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MPE TEST RESULT Equipment Under Test: Mobile Radio Model No.: TM-800U Date of Test(s): 2006-10-04 Standards: FCC 47CFR 2.1091(b) Tested by : Army 2006-05-19 The details of the testing results carried out on one sample, the results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. TABLE OF CONTENTS 1. Description................................................................ 3 2. Antenna Information..................................................... 3 3. Test site.........................................…

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