TC-580 Service Manual 00
Contents
1. matic Di m AF amp IF TC 580 Schematic Diagram AF amp R266 R241 47K C236 NAA lt C264 R238 Tu 8 nur lt lt BEEP_MUTE 0 10 82K tos D205 8278 4 AN C225 su 1000 NC EDZ68B y s 470P _ 2 2U 10V Si 5r R223 LC232 C266 R239 R240 PaP decer al G1 7 co R275 7 470P TP608 AF 007 4 Y 2 2U 10V 2 5201 10 i EE 224 2220 222 D207 SW VOLUME 1 T v W UDZS18B 1 R276 D250 C254 R280 i i 4 4 47K 026 88 UART TX 4 2 AGNDIN 2 E 3 RXINO AGND m 22 FILTERO TXINO 3 E2. 5 TC 580 Schematic Diagram MCU amp POWER R656 IN EY OUT EY OUT2 EY OUT3 719 EY Ex KEY iine 8x Tet KEY INA 88 504 Leto 281 TP603 6015 SSUART TX 3153331233515 33 5 BREE p y ap ypas 251 22286 __ 268 9 STT EE 198062275 Kul LCD BL lt lt vop2 LZ VOX DE 2 Reserved XXX VSS 2 TP605 EXT PTT Exr NC VSAVE CTRL JTMS Cb17 5 TX Reserved 20P Reserved R647 C674 Z Reserved UART AM uu 0 1UT 81 Reserved UART TX 8 5 5 171
3. 4444444444 3 1 1701 6016 Q701 all Vee 2SA1362 L703 R706 S 5015 PT Eee d 675 1000 i R710 m x LCD RSTB LCD RS gt A LCD SCL gt gt iE xi LCD 501 gt gt ESE C703 C704 C705 7 100P 100 100R 9808 0707 EST 10 0220 5616 5618 5619 5 5 2 2 s 2 T 4 4 4 84s 84 s lt EE z ES 620 5621 5622 5623 5 75 2 4 82 Ls os t D604 LED D Tepes ORS 624 625 626 627 5 75 2 o 75 2 4 5 75 2 o 75 2 4 M 2 i OPTT 2 1 2 D608NM DEO7 Wr 60557 JP703 L3 1 ces OSK1 GP eS LED CONS A Keo 5 5628 5629 5630 8631 9 5 52 45 52 1 s 45 5 R721 lt lt OUT R722 gt KEY OUT2 R723 lt lt KEY_OUT3 R724 lt lt 0 4 8725 IN1 726 IN2 R728 IN3 R732 EY INA 1 C713 C712 711 C710 709 4606 1000 100 100 658 65
4. ANTENNA IY NC mi NV L413 C409 C421 D403 C428 424 C426 C429 430 406 C406 _ A Wy 10nH f pi ji 4 2 d j oop 1 OR 56 J glo sloml slasSlozle al slo 155356 R408 T 222 3 9ST 8TZ3T8 87484 L409 L410 L411 gier 28 S e Q402 404 P B 0403 5 ni do eic af C412 0428 1 Q401 jem 1 3 007 798 C495 16427 47 Well 52 5 a 407 4 535 C420 47 1 470 1501 R40 enr C408 E 415 Yn b 820 M 470 413 L z 7 1000P 47 amp in C502 E E m 414 LC415 d 2P 52 ws 404 412 848 010 470P Of C404 q 2 g 1408 518 22150 Alec le 6015 OTP400 4 5 V_BAT gt b d R401 C441 C440 C439 10K h C435 434 R419 DAU Speer D401 25077 Bs ul 0404 2 i U401 DTA114YE R420 C437 NJM2904V R418 7 10K 1 0511 C533 150K 470 8 Q106 42 lt 4 1 qc 438 cio MA2S077 me 5 OUT db Y R422 423 C436 4 4 5 ies nm dir 130 3 gt EUM Pe 6K 3K 3
5. LCD 3M1 CLK 0601 0603 gt PLL DATA XC amp 201P xcearp TCXO 21 25M PLL EN U101 74 Synthesizer MB15603 VCO_BUF BUF_AMP E PRE DRV Final Loop Filter 25 5108 25 5108 25 4988 RDO1 RQA0002 POWER_CTRL U602 XC6401FF Ripple gt gt Restraint ANT SW CTC DCS VOX AMP ELI ml VOX DEL 6 DTMF TTS E Ceramic Filter A d N Crystal Filter Varactor Varactor Audio amp Sub Audio Processor B IF 217 MIC E Y BEATOS Tuned Filter Tuned Filter gt D 2 Detector U201 0202 1136 2822 2347 4 MIXER 2 41511 5 NDET gt 3SK318 RM lt prt kev pan 195 E2PROM 5 Y Y OPTIONAL PLL DATA 0204 2904 LCD amp KEYPAD BEEPS LED_GREEN gt LED_RED gt AN APC TU U611 CPU DTMF TTS CTC DCS VRCR gt STM32F100 DTMF TTS_OUT 5 _ R 2347 lt Noise Detect VOX SAVE W N TX RX T R RSSI N DET VOX_DET TXD RXD gt POWER CTRL Harmonic LPF OF ANT
6. 15 SQL Level 5 Y Y Y Y Y Y Y Y Y Y 16 SQL Level 9 ON hd Y Y Y Y Y Y Y Y Y 17 SQL Level 1 OFF Y Y Y Y Y Y Y Y Y Y 18 SQL Level 5 OFF Y Y Y Y Y Y Y Y Y Y 19 SQL Level 9 OFF Y Y Y Y Y Y Y Y Y Y RX Low Voltage 20 Y Threshold 21 Max RX Volume Y 22 Bandpass Filter Y Y Y Y Y Note Y indicates frequencies that can be tuned and the rest are blank channels not available for tuning 1 Entry into a tuning item Hold down PTT and SK1 for 2 seconds while powering on the radio Then the LCD displays Tuning Mode Press OK to enter the item Please note that TX Item is the default item And use UP DN to switch between TX Item and RX Item After the item is selected press OK to enter submenu under this item Press OK to enter the desired tuning item or press C to return to the previous menu Wide Narrow Bandwidth Switch and Frequency Switch in a Tuning Item After an item is entered press UP DN to switch the frequency or wide narrow bandwidth Press OK to save and return to the previous menu upon completion of tuning Value Tuning Short press SK1 under certain bandwidth and certain tuning item to decrease the tuning value in the step of 1 hold down the key to decrease the value continuously in steps of 1 The tuning value will remain unchanged once it reaches the allowed minimum value Short press SK2 under certain bandwidth and certain tuning item to increase the tuning value in the step of 1 hold down the key
7. 10 1 HVT TC 580 Service Manual To enter the Manual Tune mode Hold down PTT and SK1 for 2 seconds while powering on the radio Then the LCD displays Tuning Mode indicating that the Manual Tune mode has been entered At this time release the keys To switch the tuning item After the tuning mode is entered switch the tuning item using UP or DN key The LCD displays the tuning item accordingly The LED solidly glows red for the TX group items and glows green for the RX group items To adjust the value At a certain frequency short press SK1 to increase the value in the step of 1 hold down the key to increase the value continuously in steps of 1 At a certain frequency short press SK2 to decrease the value in the step of 1 hold down the key to decrease the value continuously in steps of 1 To save the value After the value is set press UP or DN to switch the frequency or press OK to save the value To enter the selected item Use UP or DN key to choose your desired tuning items and press OK to enter the item To return to the previous menu Short press C to return to the previous menu and long press C to return to the first level menu Measures on special items TX group items Including the VOX Level 1 5 and TX Low Voltage Threshold These tuning items are related to AD sampling Short press SK1 or SK2 after entering the above items to activate AD sampling including calculation once Press UP or DN to S
8. 0220 c275 21 4 33P 237 26 8 220 R279 R277 33 RXOUT 4 10K 10K 20 DINO EXTIN 2 8226 10 Cai Speaker 19 DIN EXTINO 8 5 NK T 040 IN t RSAOUT LIMLV Q208 TSAOUT MOD 9 R235 R285 C269 25 1824 2260 LC255 268 C265 16 VSS Hio 228 100K Jl 3 206 1000 7221 1 10 al ni AN SLK E di 120K y FMMT717 Ne 91 pu 3o 02 al ZY ns voo Hel 025 20 10U 16V 3 56 A bn AK2347 R265 1K p 8 02 5 1 id 5 x R286 R269 D230 PJ D3027D C jl mag 1209 8227 TT W AW i ain GND NC 22 3M2 WV 1K C256 L aoo 70282 cose p231 L 601s 27K 1000P 4 10 TDA2822D oU Lc229 230 0 1U 10 10 gt s i RN202 5 5M Hen 0201 1 RB706F 40 1208 Pd M SEXT T EXT 7 212 gt i R214 C277 R230 100 C207 me 91K 25010 MOD 010 lt lt 10 ale L E R21 DTMF TTSO y p lt lt NJM2904V 1 ovr 8 m 4 SEL WIN 2 1 0201 CTRL 5 WART RK ry 4 3 6 206 C206 25 1824 R272 4 5R 22 1 22 2 5 4l a 5 27 p ue LXI R231 nm mesa 02768 A Sat DETK T T
9. 82 PD1 KEY OUTA4 83 PD2 TIM3_ETR KEY Output pin for key matrix scan 84 PD3 KEY OUT2 85 4 KEY OUT1 O 86 PD5 Reserved O Reserved 87 PD6 Reserved Reserved 88 PD7 Reserved Reserved PB3 JTDO TRACES 89 WO JTDO Can not remain open during adjustment 90 PB4 JNTRST JNTRST Can not remain open during adjustment 91 PB5 I2C1 SMBAI Reserved Reserved PB6 I2C1 SCL TIMA 92 Reserved Reserved _CH1 93 PB7 I2C1 SDA TIM TTSI PEE nputs 2 Tone 4 CH2 P 23 HVT TC 580 Service Manual 94 BOOTO Input low level 95 PB8 TIM4_CH3 Reserved Reserved 96 PB9 TIM4_CH4 Reserved Reserved 97 4 Reserved Reserved PE1 WIN Controls the channel Racing between wide and narrow L Narrow H Wide 99 55 3 GND 100 VDD 3 VCC 24 HVT TC 580 Service Manual TC 580 Parts List 1 TC 580 350 390MHz Parts List 1 Part No Qty Ref No 2100580100000 3801045030190 CE201 3099080398000 3099080398000 3099080398000 Chip Resistor 1206 0 390 J 1 4W RoHS T 1 U 0 2 3001052790000 3001054790000 3001084790000 9 3001051000020 Chip Resistor 0402 100 F 1 16W RoHS 1 R121 3001051000020 Chip Resistor 0402 100 F RoHS 1 Ri26_ 3001
10. Figure 2 Assembly 1 Assemble the PCB in the following steps 1 Place the main PCB onto the aluminum chassis in direction of as shown in Figure 3 and use nine screws to secure it in direction of 2 Attach the keypad PCB to one side of the chassis in direction of S and secure it with two screws in direction of 4 3 Install the bracket for accessory jack in direction of 4 Solder the keypad PCB to main PCB with an electric iron 4 6 Oc Pd Z Figure 3 54 HVT TC 580 Service Manual 2 Assemble the Chassis in the following steps 1 Solder two speaker cables to the chassis with an electric iron 2 Attach the rear cover in direction of 9 3 Insert the chassis into the front case in direction of and then press the bottom of the chassis Note Place the waterproof ring in its place And do not place the speaker cables over the LCD 4 Secure the chassis with two screws in direction of 4 5 Install the antenna connector with sleeves in direction of 6 Secure the antenna connector with a screw using a screwdriver in direction of 6 7 Secure the antenna connector with a nut using sleeves in direction of 8 Attach a nut for the volume control knob with sleeves in direction of 9 9 Install the volume control knob in direction of 9 Figure 4 3 Then install the antenna battery and belt clip one by one 55 TC 580 Service Manual Exploded View
11. equipment It contains all service information required for the equipment and is current as of the publication date Safety Information The following safety precautions shall always be observed during operation service and repair of this equipment o o This radio shall be serviced by qualified technicians only Only use HYT supplied or approved batteries and chargers To avoid electromagnetic interference and or compatibility conflicts turn off your radio in any area where posted notices instruct you to do so Turn off your radio before boarding an aircraft Any use of the radio must be in accordance with airline regulations or crew 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 Turn off your radio prior to entering any area with explosive and flammable materials Do not charge or replace your battery in a location with explosive and flammable materials Turn off your radio before entering a blasting 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 may result Do not expose the radio to direct sunlight for a long time nor place it close to a heating source During transmission hold the radio in a vertical position with its microphone 2 5 to 5 0 centimeters 1 2 inches away from your lips and keep the antenna at least 2 5 centimeters approxi
12. HYT fe EN AM N SU WS SU SU eo v eo e 56 HVT TC 580 Service Manual TC 580 Parts List 2 No Material No Description Qty PCS 1 6100459000000 Top key 1 2 6201739000000 Inner lining for knob 1 3 6001018000000 Volume control knob 1 4 7209002500000 Antenna nut 1 5 6100487000000 Antenna O_Ring 1 6 4400100033000 SMA RF connector 1 7 7102004000200 Machine screw 1 8 6000842100000 Plastic PTT key 1 9 6100367000000 Silicone rubber PTT key 1 10 7400234000000 Speaker felt 1 11 5001210000430 Speaker 1 12 5130000000050 Black White LCD 1 13 7101904020200 Self tapping screw 9 14 7500339000000 FPC sponge 1 15 7500242000000 FPCB sponge cushion 1 16 5206010200020 FPC connector 1 17 6100334000000 O ring for encoder switch 1 18 4302020000040 Volume switch 1 19 NC Main PCB 1 20 6201836000000 Spring plate for antenna 1 21 7500114000000 Heat sink pad 1 22 5205000001000 Battery connector 1 23 6100314000000 Waterproof ring for battery connector 1 24 6300064000000 Aluminum chassis 1 410058002000A 25 0 Keypad PCB 1 26 7300037000000 Metal dome for PTT key 1 27 7102005000000 Machine screw 2 28 7103006004000 Machine screw 2 29 6100376000000 Wate
13. Test Set 121dB 6 Short press UP DN to SSG 121dB 5 switch the frequency MOD 1KHz gt Refer to method of DEV 3KHz Tune the SSG Squelch Level SQL 5 for that of Filter 0 3 3 2 5 output signal to Level 1 124dB SQL Open1 SQL Antenna Press squelch level Press Level 9 117dB 5 Earpiece SK1 i D OK to save and exit Tune WFP5 SQL Socket SK2 o upon completion of 5 and then n Squelch Level Communication all settings press DN to enter 5 Test Set NFP1atlow 120dB m SSG 120dB z frequency e MOD 1KHz Refer to method of z DEV 1 5KHz Squelch Level SQL Open5 for that of _ Filter 0 3 3 2 Level 1 123dB SQL Open1 and SQL Level 9 116dB Switch to and enter SQL Close5 WFP1 Squelch level atlow frequency is pu Communication Tune the 556 Level 5 set by default Test Set signal to squelch 123dB 9 Short press UP DN to Antenna Press SSG 123dBm level Press to S Switch the frequency Earpiece SK1 o MOD 1KHz save and exit upon E z Socket SK2 Squelch Level Refer to method of DEV 3KHz completion of all evel 1 501 5 for that Filter 0 3 3KHz settings 126dB of SQL Close 1 and Level 9 SQL Close 9 119dB 47 HVT TC 580 Service Manual Tune WFP5
14. 0402 RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Resistor 0402 100KQ F 1 16W RoHS Chip Resistor 0402 100KQ F 1 16W RoHS Chip Resistor 0402 100KQ F 1 16W RoHS Chip Resistor 0402 100KQ F 1 16W RoHS Chip Resistor 0402 100 F 1 16W RoHS Chip Resistor 0402 100 F 1 16W RoHS Chip Resistor 0402 100KQ F 1 16W RoHS Chip Capacitor 100PF J 50V 0402 RoHS Chip Capacitor 100PF J 50V 0402 RoHS Chip Capacitor 100PF J 50V 0402 RoHS Chip Capacitor 100PF J 50V 0402 RoHS 28 HVT TC 580 Service Manual Chip Capacitor 100PF J 50V 0402 RoHS Chip Resistor 0402 10KQ J 1 16W RoHS Chip Resistor 0402 15KQ J 1 16W RoHS Chip Resistor 0402 10KQ J 1 16W RoHS Chip Resistor 0402 10KQ J 1 16W RoHS 3402892600040 D 10pF 2 55V 25 85 SMD Em a 3058 60060 Capacitor 10pF 2 5pF 55V 25 85 SMD TONS Tantalum Capacitor 10UF M 10V 55 125 P RoHS Tantalum Capacitor 10UF M 16V 55 125 S RoHS 29 am LR Te JR TS EX HVT TC 580 Service Manual Chip Resistor 0603 150 D 1 10W RoHS Chip Resistor 0603 150 D 1 10W RoHS Chip Resistor 0402 1KQ F 1 16W RoHS Chip Resistor 0402 1KQ F 1 16W RoHS Chip Resistor 0402 1 F 1 16W RoHS Chip Resistor 0402 1KQ F 1 16W RoHS Chip Resistor 0402 1KQ F 1 16W RoHS Chip Resistor 0402 1KQ F 1 16W RoHS Chip
15. 119 24 470 0 1U R127 vec 3 8100 R103 104 1100 2 w TIR b d A e PLL LD ene 5 Av edis C155 11 n E 5 1 C139 10 1 prin st Q101 Ee a C102 alpara crock H Lois 25077 L106 258508 UTOT 1000P 3 1 MB15E03SLPV1 45 E ql 5 25 2 R112 2 518 0102 100 No mazso77 S 7 s ASI zu Me Y Y S 5 IE 4 120 4 C104 5 8 107 0124 ira 1000 2 A 51R 129 470 PLL EN ie 542 1111 2 1 2 22nH ls COM CLK q 4 C126 OUT 135 L C136 ciszl C138 J 1O0P T 100P 100P 400P 112 i Ce 25 5108 L113 16 470P cles 3 33P C130 5P 6129 HVT Specifications TC 580 Service Manual General Specifications Frequency Range VHF 136 174 MHz 245 MHz 350 390 MHz 400 470 MHz 450 520 MHz Channel Capacity 256 Channel Spacing 25 12 5 KHz Operating Voltage 7 4V DC Battery 1100mAh Li lon Battery Battery Life 5 5 90 Duty Cycle Above 8 Hours Operating Temperature 25 C 460 C Dimensions HxWxD with battery without antenna TEIG OSSA Weight with antenna amp battery 250g Frequency
16. 8234 1 2 MICJACK 15K 552 C210 208 aoe an 355 26 010 8 C205 ASS J 620 _Lc2es 1U C235 276 pun 47U 1000 2 R209 can s R210 C203 1201 1 7 10 TuH 5 TER i000p 5 6K 2 220 RSSI 4 8273 0206 5 IAN S T E T 38 10282 25111 k 2 M R284 1000 R259 z E 4 5R C292 NC NC 100K 2 8 258 pas D202 R215 A i 2 AK FILTERO C278 Ou 1 1 R260 NG 0 1U TS 2 Seer omm T i 8252 8 47 NG 22K E 5 10 2 lt NC 0 1U C295 Z 52 5B E 7 470 4 C208 ck 54 8 ao x De 2 24 RB706F 40 1 470P INC 0 01U 663 Suh gt 9 000010 C 100K 1 R261 C245 4 4 2 R254 NC 10K 210 R251 die TZ 5 C231 Mog a Oe dae STs L NC 22K ES FOP sag lt 8250 D203 220 2 22 1 a 2 2K RB706F 40 40 es C280 R249 T470P 1 4 C250 04U cate e 5 mi s Sos al 1 1 25 ANA t IG 10UA0V 56P 825 s 10 2 s QR C 100K NO YM 1000 R 201 i 2SA1980E 5 R256 NC NJM2904V em TWC450F D 4 R A n TC 580 Schematic Diagram 8 9701 LCD o Q ce O 00 O
17. Menu Content Content one ed Displays the RX f P OK to edit RX Freq 350 00000 isplays the requency Press edit HVT Wired Clone Mode 1 TC 580 Service Manual CHn TX Freq TX Freq 350 00000 Displays the TX frequency Press OK to edit Option Items CH Space Sets the spacing of the current channel Spron Nems Sets the power level of the current channel Power Level RA j Sets the whisper feature the current channel Option Items Whisper Option Items Sets the compandor feature on the current Compandor channel Option Items Sets the scrambler feature on the current Scrambler channel RX CTC CDC Sets not to receive CTCSS CDCSS on the CTC CDC None current channel RX CTC CDC Displays the RX CTCSS on the current channel CHn CTC Press OK to edit it RX CTC CDC RX CTC CDC Displays the RX CDCSS on the current channel Normal CDC Press OK to edit it RX CTC CDC Displays the RX CDCSS on the current channel Invert CDC Press OK to edit it TX CTC CDC Sets not to transmit CTCSS CDCSS on the CTC CDC None current channel TX CTC CDC Displays the TX CTCSS on the current channel CHn CTC Press OK to edit it TX CTC CDC TX CTC CDC Displays the TX CDCSS on the current channel Normal CDC Press OK to edit it TX CTC CDC Displays the TX CDCSS on the current channel Invert CDC Press OK to edit it Description Wired Clone mode is an independent mode To access other mod
18. Resistor 0402 1KQ F 1 16W RoHS Chip Resistor 0402 1 F 1 16W RoHS Chip Resistor 0402 1 F 1 16W RoHS 30 HVT TC 580 Service Manual Chip Resistor 0402 1MQ F 1 16W RoHS Chip Resistor 0402 1MQ F 1 16W RoHS Chip Capacitor 1UF K 6 3V 0402 RoHS Chip Capacitor 1UF K 6 3V 0402 RoHS Chip Capacitor 1UF K 6 3V 0402 RoHS Chip Capacitor 1UF K 6 3V 0402 RoHS Chip Inductor K 25mA 0 60 25 85 0603 RoHS Chip Inductor 10 J 245mA 1 10 40 105 1008 RoHS 31 HVT TC 580 Service Manual Chip Capacitor 2 2UF K 10V 0603 RoHS Chip Capacitor 2 2UF K 10V 0603 RoHS Tantalum Capacitor 2 2UF 10V 55 125 P RoHS Chip Capacitor 20PF J 50V 0402 RoHS Chip Capacitor 20PF J 50V 0402 RoHS Chip Capacitor 2200pF K 50V 0402 RoHS Chip Capacitor 220PF J 50V 0402 RoHS Chip Capacitor 220PF J 50V 0402 RoHS Chip Capacitor 220PF J 50V 0402 RoHS Chip Capacitor 0603 220PF J 50V RoHS Chip Capacitor 0603 220PF J 50V RoHS Bead 2200 100MHz 2000mA 55 125 0805 RoHS 32 HVT TC 580 Service Manual Chip Inductor 22nH J 300mA 40 85 0603 RoHS Chip Capacitor 22PF J 50V 0402 RoHS Chip Capacitor 0402 2PF 50 RoHS Chip Capacitor 0402 2PF B 50V RoHS Chip Capacitor 0603 2PF 50 RoHS P MOSFET VDS 30V ID 100mA VGS th 1 9V RoHS P MOSFET VDS 30V ID 100mA VGS th 1 9V RoHS N MOSFET VDS 30V ID 100mA VGS th 3 0V RoHS N MOSFET VDS 30V ID 100mA VGS th 3 0V RoHS N MO
19. Stability 2 5ppm Receiver Sensitivity lt 0 25 0 281 Selectivity 70 50dB Intermodulation 60dB Spurious Response Rejection 70dB Rated Audio Power Output 1W Rated Audio Distortion 55 Transmitter RF Power Output 4 5 5 0W 1 0x0 3W 4 0x0 3W 1 0x0 3W 36dBm lt 1GHz Spurious and Harmonics 30dBm 1GHz Modulation Limiting lt 5 2 2 5 2 FM Noise 240 35dB Modulation Distortion lt 5 All Specifications are tested according to TIA EIA 603 and subject to change without notice due to continuous development HYT endeavors to achieve the accuracy and completeness of this manual but no warranty of accuracy or reliability is given All the specifications and designs are subject to change without 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 retrievable system distributed or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of HYT 69
20. TU DA For automatic power control tune voltage ADC_IN4 30 PARE VRCR DA Adjusts tolerance of carrier frequencies _OUT2 ADC_IN5 PA6 SPI1_MISO AD Controls the TX modulation circuit for BEEP L 31 BEEP_MUTE O C ING TIM3 CH1 2 32 PAUSE Reserved Reserved IN7 TIM3 2 33 PCA ADC IN14 SQL DET AD Detects carrier signals 34 PC5S ADC IN15 BAT DET AD Detects battery voltage PBO ADC_IN8 TIM3 35 CH3 _ DTMFI MSKI Input for DTMF MSK decoding 36 IPS Reserved O Reserved _CH4 37 2 1 BOOT1 Input the low level 38 PE7 Reserved Reserved 39 PE8 PTT PTT key valid low level 40 PEO Programmable function key SK1 valid at low level A1 10 SK2 Programmable function key SK2 valid at low level 42 11 Emergency Key valid low level 43 PE12 PLL EN MB15E03SL ENABLE 44 PE13 LD Detects circuit unlock H Lock L Unlock 45 14 AK2347_CSN Enables Ak2347 serial data 46 PE15 CTRL O Switches the MIC on or off H Off L On PB10 I2C2 SCL US 47 ART3 TX Reserved Reserved 11 2 2 SDA US 48 ART3 Reserved Reserved 49 VSS 1 GND 50 VDD 1 VCC PB12 SPI2_NSS 51 I2C2 SMBAI USAR Reserved Reserved T3 CK 52 TOTO DEN LCD SCL Serial Port inputs LCD Clock USART3 CTS 53 Reserved Reserved USART3 RTS 54 PB15 SPI2 MOSI LCD SDI Serial Port
21. in SQL Squelch level Close5 and then press Level 5 UP to enter NFP1 at Communication 122dB low frequency Test Set 5 Antenna Press Om SSG 122dBm 3 Refer to the Squelch S Earpiece SK1 D 2 Refer to method of MOD 1KHz above Level Socket SK2 Z SQLClose 5 for that of DEV 1 5KHz Level 1 SQL Close 1 and SQL Filter 0 3 3KHz 125dB Close 9 Level 9 118dB Check the value 9 adjust the output 9 P T0 72V the voltage and Power red LED Switch to Low Batt P7 Power inspect the gt Digital Voltmeter Supply flashes and and set to WFP3 Supply emergency level 5 alert tone red LED flashes 5 sounds and alert tone x sounds Communication Press SK1 SK2 to Test Set tune the maximum E Antenna Press 5 Switch to Rx Max Dev SSG A7dBm volume Press OK 1 3 1 5W gt Earpiece SK1 3 x and set to WFP3 MOD 1KHz to save and exit 2 28 2 45V Socket SK2 x DEV 3KHz upon completion Filter 0 3 3KHz of all settings Appendix 1 Reference Value for TC 580U Source Radio Wide Band Narrow Band Tuning Item Freq 1 Freq Freq Freq Freq Freq Freq Freq Freq Freq 2 3 4 5 1 2 3 4 5 TX Item Section Preset Power 167 Frequency Tolerance 608 TX Low Power 176 167 167 170 159 TX High Power 400 397 389 390 387 CDCSS Balance 89 91 110 113 89 CDCSS Deviation 101 101 117 115 115 57 61 71 73 68 CTCSS L Deviation 152 163 136 169 171 96 104 85 1
22. tone sounds before the TOT timer expires Receiving The LED glows green during receiving The LED flashes green during scanning Scan Start Alert programmable by the dealer Scanning one beep is heard Scan End Alert programmable by your dealer two continuous beeps are heard Writing Reading The LED glows red when reading data The LED glows green when writing data When a call is transmitted within the Auto Reset Time The LED solidly glows orange When a call is received When an individual call is received within the Auto Reset Time The LED rapidly flashes orange The orange LED gives indication by means of double flash When a group call is received within the Auto Reset Time The LED flashes orange Adjusting TX items The LED solidly glows red Adjusting RX items The LED solidly glows green HVT TC 580 Service Manual Software Specifications Description of Features 1 2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 256 available channels 32 available zones High Low power switchable 5 selectable VOX sensitivity levels Channel Scan Bandwidth Switch Home Channel Time out Timer TOT Busy Channel Lockout transmission prohibited in busy status 9 selectable squelch levels Monitor Compandor Scrambler Whisper CTCSS CDCSS Encode amp Decode CTCSS Tail
23. 051000020 Chip Resistor 0402 100 F RoHS 1 R133 3001051000020 Chip Resistor 0402 100 F RoHS 1 R237 3001051000020 Chip Resistor 0402 100 F RoHS R251 3001051000020 3001051000020 Resistor 0402 100 F 1 16W RoHS 3001054700000 3001054700000 3001056810000 3001056810000 Chip Resistor 0402 6800 J 1716W 3001055600000 10 3001056100020 107 Chip Resistor 0402 1000 J 1 16W RoHS Chip Resistor 0402 1000 J 1 16W RoHS Chip Resistor 0402 1500 J 1 16W RoHS Chip Resistor 0402 3300 J 1 16W RoHS Chip Resistor 0402 5600 J 1 16W RoHS Chip Resistor 0402 8200 J 1 16W RoHS 25 D D D 20 20 1 gt rm 2 212 Az A o 2 R 0 KR S N IS mn mjujujoju m ogo zr A HVT TC 580 Service Manual Chip Capacitor 0 01UF K 25V 0402 RoHS Chip Capacitor 0 01UF K 25V 0402 RoHS Chip Capacitor 0 01UF K 25V 0402 RoHS Chip Capacitor 0 01UF K 25V 0402 RoHS Chip Capacitor 0 01UF K 25V 0402 RoHS Chip Capacitor 0 01UF K 25V 0402 RoHS 3101051050000 Chip Capacitor 0402 1UF K 16V ROHS t C266 Tac 66 3101058330000 Chip Capacitor 0402 0 033UF K 16V RoHS 1 c27 68 3101051040060 Chip Capacitor 0 1UF 16v 0402 RoHS t cite Ts 69 3101
24. 051040060 Chip Capacitor K 16v 0402 RoHS Ct Ta Chip Capacitor 0 1UF K 16V 0402 RoHS Chip Capacitor 0 1UF K 16V 0402 RoHS Chip Capacitor 0 1UF K 16V 0402 RoHS 3101051040060 Chip Capacitor 01UF K 16V 0402 RoHS 1 Cz4 126 Chip Capacitor 0 1UF K 16V 0402 RoHS Chip Capacitor 0 1UF K 16V 0402 RoHS 86 3101051040060 Chip Capacitor 0 1UF 16V 0402 RoHS 89 3101051040060 Chip Capacitor 0 1UF 16V 0402 RoHS 50 3101051040060 Chip Capacitor K 16V 0402 RoHS 1 czer 26 HVT TC 580 Service Manual Chip Capacitor 0 1UF K 16V 0402 RoHS Chip Capacitor 0 1UF K 16V 0402 RoHS 96 3101051040060 Capacitor 0 1UF K 16V 0402 RoHS 1 C520 Chip Capacitor 0 1UF K 16V 0402 RoHS 98 3101051040060 Capacitor 0 1UF K 16V 0402 RoHS 1 ceos 99 3101051040060 Chip Capacitor 0 1UF K 16V 0402 RoHS 1 0624 B5D Chip Capacitor 0 1UF K 16V 0402 RoHS Chip Resistor 0402 00 J 1 16W RoHS Chip Resistor 0402 00 J 1 16W RoHS Chip Resistor 0402 00 J 1 16W RoHS Chip Resistor 0402 1 8KQ J 1 16W RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Capacitor 1000PF K 50V 0402 RoHS Chip Capacitor 1000PF K 50 0402 RoHS Chip Capacitor 1000PF 50 0402 RoHS 27 HVT TC 580 Service Manual Chip Capacitor 1000PF 50 0402 RoHS Chip Capacitor 1000PF K 50
25. 06 110 CTCSS M Deviation 139 151 175 170 162 89 97 110 111 101 CTCSS H Deviation 151 155 173 169 174 94 98 109 109 109 DTMF Deviation 94 96 102 102 112 55 55 59 62 63 TX Low Voltage 202 Threshold 48 HVT TC 580 Service Manual VOX Gain1 71 VOX Gain2 32 VOX Gain3 20 Gain VOX Gain4 14 VOX Gain5 4 Max Deviation of TX 16 17 18 19 22 16 17 18 20 22 Audio Rx Item Section SQL Level 1 ON 78 69 65 67 65 82 72 68 66 70 SQL Level 5 ON 61 50 44 44 47 64 55 48 48 48 SQL Level 9 ON 32 23 19 20 21 38 26 23 23 24 SQL Level 1 OFF 85 78 76 75 79 91 84 79 80 79 SQL Level 5 OFF 72 63 59 58 61 75 66 59 62 61 SQL Level 9 OFF 46 35 31 33 31 51 39 34 33 36 RX Low Voltage 200 Threshold Max RX Volume 33 Bandpass Filter 210 320 429 536 631 Note The value is subject to that of the source radio Appendix 2 Reference Value for TC 580 Battery Strength Detection in TX status Green LED glows 70 100 gt 7 46 Duration 18 minutes Orange LED glows 5090 7090 7 15 7 35V Duration 12 minutes Red LED glows 3090 5090 7 00V 7 15V Duration 12 minutes Red LED flashes lt 30 6 20V 7 00V Duration 18 minutes Red LED flashes and Alert tone sounds 5 80V 6 20V Radio is powered off 5 80V Detection in Rx and Standby status or press the Battery Strength Indicator key Green LED gl
26. 1125 C531 5 0207 R428 Sm 431 79 22nH 108 338 of R 2SKIBD4 m WM lt CAPC TU E 150 1 2 4 4 7K 0442 114 R433 42 70446 V_SAVE 4 T470P R425 1 1M 1U T 7 330 i rr PM 0529 4 5T we 10 sP 172 173 4 5R 470P R518 i 4 9 Wy C536 C535 C518 R51 C520 4 5R us IP EL 521 470 010 61398 ss 00 L E 1 TT R525 R522 C522 Lc505 Dok C538 8508 A 100K 00 QU 512 8510 52 10KS 1000P 1000 R515 50K 150K 100 100 1507 E 18 T 27nH C506 C514 XF501 C525 C526 C521 P 4 22 S H 4125 6 R516 1511 T TT 46 QU7 T 1 Yu 1 _Lcs09 es VM sho u NC SNe 8 8 1 C542 15159 1517 1518 L51 L520 boe ds 57 5T 5T 41511 5T 5T L505 0505 C507 L E 1 C549 C519 n5o 8 C504 cs Si O MC SII F nis 100 46 0544 TP 5P R50 P 516 15K gt R526 5 8 10P y Bio 2 2 27 BTR Je 5 509 SI Bc to 40 Poe 6 T7 T pa oP 1504 5 S 28 8 2 3 z Tr A514 0515 NC z E BAS 5 8 BAS HVC350B HVC350B __ XE 21 4 22 21 7 217M Ld i TC 580 Schematic Diagram VCO amp P
27. 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Capacitor 0603 4PF B 50V RoHS Air core Inductor E2 0 35 1 6 4TL RoHS Air core Inductor E2 0 35 1 6 4TL RoHS Air core Inductor E2 0 35 1 6 4TL RoHS Chip Resistor 0402 56 J 1 16W RoHS Chip Capacitor 0402 56PF J 50V RoHS Chip Capacitor 0402 9PF B 50V RoHS Chip Capacitor 0402 5PF B 50V RoHS Chip Capacitor 0603 5PF B 50V RoHS Air core Inductor E2 0 35 1 6 5TL RoHS Air core Inductor E2 0 35 1 6 5TL RoHS Air core Inductor E2 0 35 1 6 5TL RoHS Air core Inductor E2 0 35 1 6 5TL RoHS 36 HVT TC 580 Service Manual Bead 6000 100MHz 500mA 55 125 0603 RoHS Bead 6000 100MHz 500mA 55 125 0603 RoHS Bead 6000 100MHz 500 55 125 0603 RoHS Bead 6000 100MHz 500mA 55 125 0603 RoHS Chip Resistor 0402 82KQ J 1 16W RoHS Chip Capacitor 0402 10PF 50 RoHS Air core Inductor E2 0 35 1 6 8TR RoHS 600 3001059130000 Chip Resistor 0402 91 F 1 16W RoHS 1 R232 606 3101050900000 Chip Capacitor 0402 9PF sov RoHS 1 cao 37 HVT TC 580 Service Manual Chip Capacitor 0402 9PF B 50V RoHS 609 3101050900000 Chip Capacitor 0402 9PF 50 RoHS 1 548 T2E 2 Processor 2 7 3 3V 40 85 VSOP 24 A m Zener Diode 6 8V 55 125 C SOD 523 RoHS Zener Diode 6 8V 55 125 C SOD 523 RoHS Varactor VR 15V 16 4pF 1VR 5 5pF 4VR
28. 202 AK2347 and MCU is modulated onto the RF carrier via D108 Then the signal is processed by the buffer amplifier and is sent to the RF power amplifier circuit for power amplification In RX mode RX PLL generates a control voltage the phase detector and the low pass filter LOOP FILTER to control the varactor making RX VCO generate the first local oscillator signal consistent with the preset frequency of MCU Then the signal is mixed with the received RF signal at Q502 and the first IF signal is therefore generated Unlock Detector If the LD pin of U101 is at low level unlock status is valid When this status is detected by the microprocessor neither transmission nor reception can be made and the unlock alarm sounds 2 Block Diagram of The RF Power Amplifier Circuit PLL_RF_IN 1 VCO_BUF BUF Final 25 5108 25 5108 25 4988 RD01 0002 VCO OUT gt gt ANT NV ANT SW 1st Lo Figure 1 2 Block Diagram of TX RF Circuit The modulated carrier signal is processed by the front stage amplifier Q401 and by the driver amplifier Q402 for obtaining the power to drive the final stage amplifier Then the RF signal is further amplified by the final stage amplifier Q403 for obtaining required power The amplified RF signal passes through D403 and goes to the LC low pass filter circuit LPF Finally the signal is transmi
29. 601 d 1606 XC6209E502PR L608 vow j weave aso4 VBAT gt gt Vin VSS 254243 161 3M1 oR 9 3 En2 vou H4 1 EE 1020 mM E s 5 5 8 0602 V BAT ais 858 gt MS XC6401FFS5MRN TP1030 OTS lu o 10603 55 d S gt 2 22U 10V 0 1U 10 a 8 px 5 ESS Eds q 55 JP702 zl H 4 4 6117 55 3 j 1 Leo 3M 858 4 1 Vouti H n 21 Vn vss E 6015 R670 C716 C717 C718 C612 3 EN2 vout2 4 608 100P 100P 22U Yo 0603 ds 4 4 1 XC6401FF37MRN Ts L c657 342 470P EET 601s E n 1 5 4 3 2 1 TC 580 Schematic Diagram RF L414 C459
30. CDC Dev n 5 CDC Dev WFP1 5 gt TX Items 7 13 CTC Dev L n 10 CTC L WFP1 5ANFP1 5 LX IX Items 8 13 CTC Dev M n 10 CTC Dev M WFP1 5ANFP1 5 TX Items 9 13 CTC Dev H CTC Dev H n 10 WEFP1 5 NFP 1 5 TX Items 10 13 DTMF Dev DTMF Dev n 10 WFP1 5 NFP1 5 _ Gain 1 5 Vox Gain1 1 1 Vox Gain1 WFP3 VOX Gain 2 5 Vox Gain1 1 1 TX Items 11 13 Vox Gain2 WFP3 VOX Gain _ Gain 3 5 Vox Gain1 1 1 Vox Gain3 WFP3 gt VOX Gain 4 5 Vox Gain1 1 1 Vox Gain4 WFP3 gt VOX Gain 5 5 Vox Gain1 1 1 Vox Gain5 WFP3 p TX Items 12 13 TX Low Batt 1 1 TX Low Batt WFP3 gt Items 13 13 TX Max Dev n 10 TX Max Dev WFP1 5 NFP 1 5 RX Items 1 9 1 n 10 SQL WFP1 5 NFP1 5 Items 2 9 gt SQL Opens n 10 SQL Open5 WFP1 5 NFP1 5 Items 3 9 Open9 n 10 SQL Open9 WFP1 5 NFP1 5 og RX Items 4 9 SQL Close1 n 10 SQL Close1 WFP1 5 NFP1 5 Tune Menu 2 2 gt RX Items 5 9 SQL Close5 n 10 RX Items SQL Close5 WFP1 5 NFP1 5 ww RX Items 6 9 a SQL Close9 n 10 SQL Close9 WFP1 5 NFP1 5 Items 7 9 RX Low Batt 1 1 RX Low Batt WFP3 We RX Items 8 9 RX Max Vol 1 1 RX Max Vol WFP3 Items 9 9 BPF Tune n 5 BPF Tune WFP1 5
31. F Section 1 Block Diagram of PLL Circuit CTC DCS om i LD VROR PLL CLK TCXO 21 25M 4 PLL DATA PLL EN U101 Synthesizer XIRX aos MBISEC VCO BUF BUF_AMP Filter 2 25 5108 25 5108 Y Q101 T Des e Ripple RX lt i Restraint i VCO i MIX R CTC DCS i vf 0100 IN TX vco Figure 1 1 Block Diagram of PLL and VCO The PLL circuit generates RF carrier signal for TX and the first local oscillator signal for RX PLL The step frequency of the PLL circuit is 5 0 2 6 25 2 10 2 or 12 5 2 In U101 the 21 25MHz reference oscillator signal is divided into 5 0KHz 6 25 KHz 10 0 KHz or 12 5 KHz reference frequencies via a fixed counter in PLL The signal output from the VCO TX VCO RX VCO processed by the buffer amplifier 0104 and then enters where it is further processed by the variable frequency divider Then the signal is compared with the reference frequency in the phase detector PD of PLL The signal from PD passes through a low pass filter and then is sent to the varactors of VCO so as to control its output frequency HVT TC 580 Service Manual VCO There is a TX VCO and a RX VCO In TX mode PLL generates a control voltage via the phase detector and the low pass filter LOOP FILTER to control the varactor making TX VCO generate the RF carrier signal consistent with the preset frequency of MCU The modulation signal from U
32. HVT TC 580 Service Manual Contents e X 1 Safety 1 Radio OVGIVvicW Eee 2 Software Specifications u u u 5 Circuit Description Ju uu u ae 13 testate opes un etii 21 16 580 Paris List 1 oreet a d 25 Adjustment Description 40 Troubleshooting Flow Chart 50 Disassembly and Assembly for Repair 53 Exploded View dm 56 58 2 lt CIE 57 eb 59 TC 580 PCB View 60 TC 580 Level Diagram 62 TCG 580 Block Diagram UU bau eh a etna satezas ca eee 63 IC 580 Schematic Diagram 64 SOP CUE CUNO NS u uu c 69 HVT TC 580 Service Manual Introduction Manual Scope This manual is intended for use by experienced technicians familiar with similar types of communication
33. L H On L Off Controls the TX power 5 TX CTRL H On L Provides a power off protection interface 6 VABT temporarily not valid however a 100nF ceramic capacitor is required to be connected to VDD 7 PC13 ANTI Reserved Reserved 8 PC14 OSC32 IN Reserved Reserved 9 PC15 OSC32 OUT Reserved Reserved 10 55 5 GND 11 VDD 5 VCC 12 OSC_IN OSC_IN For 9 8304MHz main crystal oscillator 13 OSC OUT OSC OUT Green LED 14 NRST RESET Reset pin valid at low level 15 PCO ADC 10 RSSI DET AD Detects signal strength 16 PC1 ADC_IN11 Reserved Reserved 17 PC2 ADC_IN12 VOX DET AD Provides VOX detection to detect voice signals 18 PC3 ADC IN13 CTC DCS IN AD Inputs CTCSS CDCSS 19 VSSA Analog ground 20 Must be connected to VSSA 21 VREF ADC reference voltage 22 VDDA VDDA WKUP USART P 23 2 CTS ADC INO TI W Outputs CTCSS CDCSS to VCO M2 CH1 ETR idu M P 24 CTE BERCE Outputs CTCSS CDCSS to PLL ADC_IN1 TIM2_CH2 LL M P 25 s Ps BEEP_OUT W Outputs audio signals of BEEP DC_IN2 TIM2_CH3 M 26 PA3 USART2_RX A DTMFO TTS A Outputs DTMF 2 TONE MSK and Emergency DC_IN3 TIM2_CH4 O MSKO M tone 27 VSS_4 GND 28 VDD_4 VCC 21 HVT TC 580 Service Manual PA4 DAC_OUT1 SPI 29 1_NSS USART2_CK APC
34. LL V SAVE Sie 25 5343 L118 2nd LO lt lt 3 P a 3M2 C151 120 uL 0154 cio Dio 4 7K Toop T 100087 25111 116 4 153 220 7 ANN 3 i nH 4 E 4 71 10 10 E E 1 Y I 144 0145 1000 c RS q 470P j Leu Lc149 d 112 TS T 10P sl 470 0 10 113 818 0100 zu T T 2SK508NV eii Te 41 R115 8116 R117 05 VRCR AM M 21 25M Lc109 10K 10K Ar R106 L C158 56 C110 C113 5 oP 8P L D108 L107 R109 C143 Ash 488179 22x 3 3U 4 PLL gt gt ANN cC120 47K 470 1000 Spin 3M2 100 142 1 110 T 4 4 ET NC T aL EE R111 C121 C122 R125 E lt lt NC NC 4 7U 10V 47K 8137 T 470P 140 C141 47K AL R108 2 2u0V 101 Q103 120 L110 R126 UMC4N Bods ede en oson Li WN R105 2201H 1 18 OSCou 100K C115
35. Reserved Reserved 28 C670 10 vss 5 SDA 1094 12 00 5 EEP SCLK OSC IN T R 13 osc our LCD RSTB C619 RESET LCD RS i UP TRO 15 RssI DET RLED 18 Reserved GLED CET VOX DET COM DATA CMT CTC DCS IN COM SCLK ES 16623 t 19 VSSA APA EN 9010 21 VREF SEL1 SEL VREF SEL2 25 s LCD SBI gt gt LCD_SDI CTC_V Z z Reserved 8625 cic Pa ENSE LCD SCL 270 2 e z Reserved MOD o M H 10672 70 0 955 2 Creo g rT 10U 10V 3M1 EEN 858 EEN peso R64 um J E PLI S r ces9 ple Yx R697 tox 1000 0 020 2 Nieto T hi 198 im 1000P 70809 G LED R601 R602 R603 L g 679 R642 R698 1 515 4 DTMF TTSO lt lt 1 C683 0622 4 4700P Box Pos CAT24C256 4700 und C685 R643 229 5 4 0621 4 615 2 UMG3N SE DTMF gt gt TON R678 R655 A SOL DET 8677 NV 22k APC TU w BEEP MUTE a u lt R654 R652 VRCR L E Logs Tao 45T gt gt VSAVE 5M U
36. Revert of 180 120 degrees supporting non standard CTCSS CDCSS DTMF Decode Manual Frequency Input Keypad Lock Menu Edit Channel Set Mode Channel Alias Display Reverse Display Incoming call Display PC Programming Wired Clone Manual Adjust Battery Strength Indicator HVT TC 580 Service Manual 28 Low Battery Alert 29 Battery Save 30 Power on Password 31 Reset to restore factory settings 32 Emergency Alarm 33 Software Update Description of Modes User Mode It is a conventional communication mode After the radio is turned on it enters the User mode PC Programming Mode The radio in User mode enters PC Programming mode through specific protocol based communication with the programming software In this mode radio functions and adjustment parameters can be set through the programming software including User Version and Factory Version Reset Mode You can restore the settings which may affect normal operation to factory defaults in this mode The factory default settings include radio parameters as well as 8 channel frequencies and other channel related parameters If your radio is programmed with this function you can enable it by pressing PTT SK1 and SK2 for 2 seconds while powering on the radio Channel Set Mode You can edit parameters on the current channel through menu operation and keypad input Once the Channel Set mode is entered you can select and edit parameters like TX RX frequency C
37. RoHS Connector 10pin 0 5mm 30 85 RoHS PLL IC 1 2GHZ 40 85 BCC 16 RoHS LED Super Red 1 85V 40 85 C RoHS 38 HVT TC 580 Service Manual Schottky Barrier Diode 40V 40 125 C RoHS MCU 32Bit 7 3728MHz 40 80 RoHS IF Processor 455MHz 30 85 SSOP 16 RoHS 660 3302030500020 Zener Diode 18 150 C 500 323 RoHS 1 0207 T2C 5164000000150 Transistor PNP NPN DE HFE 68 68 ma Transistor PNP NPN 50V 50V HFE 68 68 3210 3403009000010 Compound Transistor NPN 2 50V 55 150 C RoHS Q621 3608015000060 Power Management LDO 5V 40 85 RoHS U601 3608015000040 T Management LDO 3 0V amp 3 0V 40 85 me 666 3608015000050 Poner Management IC LDO 4 5V amp 4 5V 40 85 1602 6201836000000 Antenna Spring Plate 0 20 00 RoHS ANT1 3403009000010 Compound Transistor NPN 2 50V 55 150 C RoHS 0621 669 3608015000060 Power management LDO 5V 40 85 RoHS 1 0601 duco 670 3608015000040 RoHS U603 Power management IC LDO 4 5V amp 4 5V 40 85 AMRA 671 3608015000050 RoHS U602 6201836000000 Antenna Spring Plate T0 20mm 00 RoHS 1 39 HVT TC 580 Service Manual Adjustment Description Required Test Instruments Radio communication test set HP8921 1 set 10V 3A regulated DC power supply 1 set Digital voltmeter 1 set Ammeter 1 set Preparation Place the board to be tested on the test fixtu
38. SFET VDS 30V ID 100mA VGS th 3 0V RoHS 33 HVT TC 580 Service Manual Chip Resistor 0402 3 3KQ J 1 16W RoHS Chip Inductor 3 3uH K 15mA 25 85 0603 RoHS Crystal 3 6864MHz 50 100 8 20pF 40 125 RoHS Chip Inductor 33nH J 530mA 40 85 1206 RoHS Chip Inductor 39nH J 490mA 40 85 1206 RoHS N MOSFET VDS 6V ID 20mA VGS th 0 7V RoHS Air core Inductor E2 0 35 1 6 3TR RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS Chip Resistor 0402 4 7KQ J 1 16W RoHS 34 HVT TC 580 Service Manual Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS Chip Capacitor 0402 470PF K 50V RoHS 35 HVT TC 580 Service Manual Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1 16W RoHS Chip Resistor 0402 47KQ J 1
39. TCSS CDCSS channel spacing power level and so on through the menu Such settings are mainly made through the menu Some of these parameters can only be selected from the drop down list like Wide Narrow channel spacing and High Low power level and some can be input through numeric keys like TX RX frequency Press and hold down PTT and SK2 for 2 seconds while powering on the radio to enter the Channel Set mode See the structure illustrated below HVT TC 580 Service Manual CH n 1 5 RX Freq RX Freq 1 1 350 00000 CH n 2 5 TX Freq TX Freq 1 1 350 00000 Option Items 1 5 CH Space Option Items 2 5 Power Level JCHn 3 5 Option Items Option Items 3 5 Whisper Ch Set Input CH Option Items 4 5 Compandor Option Items 5 5 Scrambler RX CTC CDC 1 4 CTC CDC None RX CTC CDC 2 4 CH n 4 5 RX CTC CDC CTC RX CTC CDC 3 4 Normal CDC RX CTC CDC 4 4 Invert CDC TX CTC CDC 1 4 CTC CDC None gt TX CTC CDC 2 4 CH n 5 5 TX CTC CDC CTC TX CTC CDC 3 4 Normal CDC TX CTC CDC 4 4 Invert CDC After the Channel Set mode is entered you will be required to input the channel number for further menu operation Level 1 Menu Level 2 Menu Displayed Displayed Description for Level 2
40. and goes to the front stage power amplifier for pre amplification After that the signal is further amplified by the driver amplifier Q402 for obtaining the power to drive the final stage amplifier After the signal is amplified by the final stage amplifier Q403 the signal with required power is generated Then it passes through the TX RX switch D403 and feeds to the low pass filter circuit Finally the signal is transmitted via the antenna after high order harmonics are removed The TX RX switch circuit is composed of D401 D511 D403 D501 D502 RX Section The RF signal from the antenna passes through the low pass filter and then feeds to the bandpass filter composed of D514 D515 and D516 to filter out undesired out of band interference signal Then the desired RF signal enters the high frequency low noise amplifier Q501 where it is amplified The amplified signal goes to the bandpass filter composed of D509 D510 and D513 to filter out out of band interference signal again The desired RF signal is mixed with the first local oscillator signal from VCO at Q502 The newly generated signal is processed by the crystal filter Z1 Z2 or XF501 to generate the first IF signal After amplified at Q505 the first IF signal goes to the IF modulator U201 where it is mixed with the second local oscillator signal from X101 to generate the second IF signal it is filtered by CF201 Then U201 demodulates the second IF signal and outputs audi
41. dulator 0201 where it will be mixed with the second local oscillator signal to generate the second IF signal 450KHz Then U201 demodulates this second IF signal and outputs an audio signal which will be sent to AK2347 3 MCU Control Signal Processing and Audio Power Amplification Circuit diagram of this section is shown as below RM e TCD BEEP KEY PAD 2 PLL CLK PLL DATA PLL_EN LED_GREEN TTS_DET LED_GREEN _ ep RED LED_RED APC TU APC TU CTC DCS DET a j 0611 DTMF DET CPU WIN TXIRX TXIRX STM32F 100 TIR DTMF TTS OUT RSSI Noise Detect DET CTC DCS VOX DET E TC DCS OUT VOX TXD RXD 9 8304M lt PA EN i VDD POWER CTRL 2347 lt T Figure 1 5 Block Diagram of MCU Control Circuit 1 MCU Control Circuit MCU control circuit is composed of MCU EEPROM keys and etc This section has the following functions to initialize data of the radio and save data to to check the battery voltage and signals from external keys LD and VOX DET and make responses to transmit required data to PLL to switch and control RX TX status based on the input PTT signal to switch the squelch circuit on or off based on the input signaling decode signal and squelch level signal to control circuits of high low power switch audio power amplification VCO power supply RX power supply and TX power supply for programmin
42. enna the TX carrier frequency enter Freq Offset SK1 lt 300Hz Tolerance Test Set Connector tolerance and press OK and set to WFP3 SK2 to save and exit Switch to and enter TX Power H WFP1 at low UHF frequency is set Press SK1 SK2 to tune 4 0W 0 2W by default the TX power and press 1 lt 1 4 Short press OK to save and exit UP DN to switch upon completion of all VHF 245MHz i the frequency settings 4 5W 5 0W refer to the 1 lt 1 5 lt tunable D Communication Press r frequencies Antenna Test Set SK1 x Switch to and Connector Ammeter SK2 enter TX Power L at low frequency is set Press SK1 SK2 to tune by default the TX power and press i i 1W 0 3W A Short press OK to save and exit 1 lt 1 0 S UP DN to switch upon completion of all the frequency settings refer to the tunable frequencies Switch to and Press SK1 SK2 to tune Communication CDCSS waveform i ress CDCSS low frequency is Test Set Antenna and press to save set by default BPF Connector Sio and exit upon Short press 20Hz 300Hz completion of all UP DN to switch settings the frequency 44 580 Service Manual CDCSS Deviation Wide Band Switch to and enter CDC Dev at low frequency is set by default Short press UP DN to switch the frequency Narrow Band Tune WFP5 in CDC Dev and then pr
43. es Y E Audio amplifier works Check the circuit normally of audio amplifier Yes olume Control knob works normally Replace the knob No Check and ee 2 dx replace CD202 d and CF201 Check U201 P1 and P16 Q505 and XF501 IF and mixer circuit works normally Check Q502 in LO VCO circuit RF mixer circuit works normally Check Q501 in Check antenna BPF circuit connection 51 r MCU Section tone and LCD display Start ormal power on alert TC 580 Service Manual Y Normal power on alert tone and LCD display Keys work normally Y Normal power on alert tone but no LCD Display Y Y No power on alert tone but normal LCD display No power on alert tone and no LCD display LCD works normally peaker works normally No MCU Operating voltage VCC works normally No Check power supply circuit Key dome Replace Replace orks normally LCD speaker No Other ER controlling pins Yes MCU works ork normally normally No y y MCU Replace Re download the works dome program or replace normally MCU 52 HVT TC 580 Service Manual Disassembly and Assembly
44. es you must restart the radio Wired Clone mode includes Clone mode and Factory Clone mode 1 Clone Mode Connect two radios using a cloning cable Then press and hold down SK1 for 2 seconds while powering the source radio on and the radio enters Clone mode The target radio can be directly turned on to enter the mode In this mode data stored in EEPROM of the source radio will be cloned to EEPROM of the target radio The data transferred only covers channel data and common parameters excluding adjustment data version and serial No of the model 2 Factory Clone Mode HVT TC 580 Service Manual Connect two radios using a clone cable Then hold down SK1 for 2 seconds while powering the Source radio on and the radio enters Clone mode press the SK2 afterwards to switch to Factory Clone mode The target radio can be directly turned on to enter the Clone mode The data transferred covers all data in EEPROM other than serial No with flag of manual adjustment switch included 2 Process Process of Wired Clone 1 The LED flashes red once after the source radio enters Wired Clone mode Press PTT to begin to clone data to the target radio 2 During cloning LED of the source radio solidly glows red and LED of the target radio solidly glows green When cloning ends LED of the source radio solidly glows orange while LED of the target radio goes out and the target radio restarts automatically to prepare for a further clone 3 I
45. ess UP to enter at low frequency Short press UP DN to switch the frequency Communication Test Set BPF lt 20Hz 300Hz AF Genl Lvl off Antenna Connector Press SK1 SK2 Press SK1 SK2 to tune the CDCSS deviation and press OK to save and exit upon completion of all settings 700x50Hz 450 50 2 CTCSS Deviation Low Frequency Switch to and enter CTC Dev L WFP1 at low frequency is set by default Short press UP DN to Switch the frequency Tune WFP5 in CTC Dev L and then press UP to enter NFP1 at low frequency Medium Frequency Switch to and enter Dev M WFP1 at low frequency is set by default Short press UP DN to Switch the frequency Tune WFP5 in CTC Dev M and then press UP to enter NFP1 at low frequency High Frequency Switch to and enter CTC Dev WFP1 at low frequency is set by default Short press UP DN to switch the frequency Tune WFP5 in CTC Dev H and then press UP to enter NFP1 at low frequency Communication Test Set BPF 20Hz 300Hz AF Genl Lvl off Antenna Connector Press SK1 SK2 Press SK1 SK2 to tune the CTCSS deviation and press OK to save and exit upon completion of all settings Wide band 700 50Hz Narrow band 450 50Hz 45 HVT TC 580 Service Manual Switch to and enter Press SK1 SK2
46. f any abnormal situation occurs during cloning the source radio will stop cloning and its orange LED will flash indicating both radios are ready for another cloning operation 4 When cloning ends the source radio goes back to standby status no matter whether the cloning is successful Press PTT again to begin another cloning operation Manual Tune Mode Press and hold down PTT and SK1 on the radio for 2 seconds while powering it on and the radio enters Manual Tune mode Note This operation is subject to the option Manual Tune Mode in the programming software If this option is unchecked the radio can not enter this mode which helps avoid change of parameters and degradation of radio performance caused by user s misoperations Keep this option unchecked after values are well adjusted from factory to avoid any unexpected change of values And re adjust the values upon your further requirement These values will remain in other modes See the tuning items illustrated below HVT TC 580 Service Manual Tuning Mode TX Items Tune Menu 1 2 OX IX Items 1 13 Pre Power 1 1 Pre Power Items 2 13 Freq Offset 1 1 Freq Offset WFP3 S TX Items 3 13 TX Power L n 5 TX Power L WEP1 5 Items 4 13 TX Power H TX Power H n 5 WEP1 5 CDC Balance n 5 Items 5 13 CDC Balance WFP1 5 L TX Items 6 13
47. for Repair Disassembly 1 Power off the radio at first and then remove the belt clip battery and antenna one by 2 Disassemble the Chassis in the following steps 1 Remove the volume control knob in direction of as shown in Figure 1 2 Remove the nut fixing the volume control knob with sleeves in direction of 2 3 Remove the nut fixing the antenna connector with sleeves in direction of 3 4 Remove the screw fixing the antenna connector with a screwdriver in direction of 0 5 Remove the antenna connector with sleeves in direction of 6 Remove two screws fixing the chassis with a screwdriver in direction of 6 7 Lift the bottom of aluminum chassis in direction of and pull the chassis in direction of to take it out 8 Remove the rear cover in direction of 9 Note Pull the chassis gently and carefully otherwise the speaker cable may get broken Figure 1 3 Disassemble the PCB in the following steps 1 Detach two speaker cables from the main PCB with an electric iron and unsolder the keypad PCB 2 Remove the bracket for accessory jack in direction of 0 as shown in Figure 2 3 Remove nine self tapping screws from the main PCB with a screwdriver in direction of 2 and remove the main in direction of 3 4 Remove the two screws from the keypad PCB with a screwdriver in direction of 2 and remove the keypad in direction of 53 HVT TC 580 Service Manual 4 e Og A x
48. g to communicate with PC via RXD TXD and transmit data to or receive data from PC HVT TC 580 Service Manual 2 Signal Processing Circuit VOX_AMP CTC DCS MIC_AMP TDA2822 Speaker CTC DOS DET DTMF DET APA EN OPTIONAL 0204 NJM2904 TTS DET Figure 1 6 Block Diagram of Baseband Processing a TX Baseband Processing The modulation signal from MIC is amplitude limited and amplified by U204 Afterwards the signal feeds to the AGC circuit and then to the baseband processor U202 in AK2347 where it is filtered compressed pre emphasized and amplitude limited Then the modulated signal enters VCO for direct frequency modulation b Rx Baseband Processing The DEMOD signal derived from IF demodulation has two flows after entering U202 in AK2347 One flow of audio signal is amplified and then goes to the low pass filter to filter out high frequency audio signal and to reserve the CTCSS CDCSS signal then the reserved CTCSS CDCSS signal is sent to MCU U611 for decoding The other flow of audio signal is filtered de emphasized and expanded and then is sent to the audio power amplifier U205 c Audio Power Amplification The audio signal output from U202 in AK2347 goes through the volume control switch and it is then amplified by the audio power amplifier U205 to drive the speaker directly HVT TC 580 Service Manual 4 Power Supply Processing Block diagram of power supp
49. ice Manual Note The Factory Clone Mode option must be checked through the programming software 3 Press PTT to begin cloning During cloning LED of the source radio glows red while LED of the target radio glows green Upon completion of cloning LED of the source radio solidly glows orange If any error occurs during cloning LED of the source radio flashes orange Press OK to return to Clone mode upon either cloning success or failure 4 You can clone the data to multiple target radios in the same way 2 Description of Tuning Items TC 580 Tuning Items Wide Band Narrow Band S Tunable Frequency Freq Freq Freq Freq Freq Freq Freq Freq Freq Freq 1 2 23 4 5 1 2 3 4 5 TX Section 1 Preset Power Y 2 Frequency Tolerance Y 3 TX Low Power Y Y Y Y Y 4 TX High Power Y Y Y Y Y 5 CDCSS Balance Y Y Y Y Y 6 CDCSS Deviation Y Y Y Y Y Y Y Y Y Y 7 CTCSS L Deviation Y Y Y Y Y Y Y Y Y Y 8 CTCSS M Deviation Y Y Y Y Y Y Y Y Y Y 9 CTCSS H Deviation Y Y Y Y Y Y Y Y Y Y 10 Deviation Y Y Y Y Y Y Y Y Y VOX Gain 1 Y VOX Gain 2 Y VOX 11 VOX Gain 3 Y Gain VOX Gain 4 Y VOX Gain 5 Y TX Low Voltage 12 Y Threshold Max Deviation of TX 13 Y Y Y Y Y Y Y Y Y Y Audio 41 HVT TC 580 Service Manual RX Section 14 SQL Level 1 ON Y Y Y
50. inputs LCD serial data 55 PD8 SEL2 Reserved 56 PD9 OPT SEL 1 Detects external earpiece valid at high level 57 PD10 APA EN Controls the power for audio L Off 22 HVT TC 580 Service Manual Clock signal for MB15E03SL PLL clock AK2347 58 PD11 COM SCLK O T clock Data cable for MB15E03SL PLL data AK2347 59 PD12 COM_DATA O data 60 PD13 GLED Green LED H On 61 PD14 RLED Red LED H On 62 PD15 LCD RS Displays data or options Reset Input Pin 63 PC6 LCD RSTB TES When RSTB is set to L initialization begins 64 PC7 T R Controls the RF TX RX switch H RX L TX 65 PC8 EEP SCLK EEPROM Clock 66 PC9 EEP SDA EEPROM Data 67 pen UTZ IS Reserved Reserved MCO 68 PAS USART1 TX UART1 TX TxD 69 PA10 USART1_RX UART1_RX UART RxD 70 AM R d O R d serv eserv USART4 CTS DEVE 71 j R d O d serv eserve USART1_RTS S 72 PA13 JTMS SWDIO JTMS SWDIO Can not remain open during adjustment 73 Not connected 74 55 2 GND 75 VDD 2 VCC 76 PA1A JTCK SWCLK JTCK SWCLK Can not remain open during adjustment 77 PA15 JTDI JTDI Can not remain open during adjustment 78 PC10 KEY IN4 79 PC11 KEY IN3 Input pin for key matrix scan 80 PC12 KEY_IN2 81 PDO KEY IN1
51. ly circuit is shown as below Power Supply LCD 3M1 U601 XC6201P U603 XC6401FF PLL 3 2 U602 XC6401FF POWER CTRL VCO 4 5V Figure 1 7 Block Diagram of Power Supply Circuit Power Supply Section The 7 4V battery voltage goes to the LDO U601 and generates a 5V DC voltage which is divided into two flows One flow is converted into a 4 5V DC voltage via the dual LCO IC U602 and supplies the TX RX and VCO circuits The other flow goes through U603 and generates a voltage to supply the MCU EEPROM LCD PLL and U202 AK2347 etc 5 Keypad and LCD LCD 128 32 DOT Figure 1 8 Diagram of LCD and Keypad HVT TC 580 Service Manual Figure 1 9 Block Diagram of Display Circuit The radio adopts a LCD of 128 32 pixels and a keypad of 16 keys which includes 4 function keys and 12 numeric keys The display circuit is composed of MCU U611 LCD module 16 key keypad LED and other components The backlight enable pin LCD_BL is controlled by MCU When it is set to H the backlight will be turned on 20 HVT CPU Pins TC 580 Service Manual d Port Pin Name Function Controls the LCD backlight 1 PE2 LCD BLT m H On 2 Reserved O 3 PE4 EXT PTT PTT key on the earpiece valid at high level PES VSAVE_CTR Controls the power in Battery Save mode
52. mately 1 inch away from your head If you wear portable radio on your body ensure that the antenna is at least 2 5 centimeters approximately 1 inch away from your body when transmitting HVT TC 580 Service Manual e MA 3 PTT 4 SK1 1 Strap Hole 2 Antenna E to Talk Key FEES 5 5 2 programmable 6 LCD Display Function 7 Function Keypad 8 LED Indicator 10 Radio On Off Volume 9 TK programmable 11 12 13 A Jack 6 A C 14 15 Battery Latch over 17 Belt Clip 18 Battery 19 Charging Piece Function Keypad OK key to access a menu or to select an option DN key to switch channels downwards during non menu operation or to scroll options downwards during menu operation e UP key to switch channels upwards during non menu operation or to scroll options upwards during menu operation e C key to return to the previous menu Long press this key to return to the main menu 2 HVT TC 580 Service Manual OK key DN key UP key C key Numeric Keypad Used to enter information for programming the radio C Used to enter numbers characters Used to enter decimal poin
53. o Dev at c to tune the amp low frequency is set DT c Communication DTMF 3 0 1kHz by default Mn Test Set Press deviation and Short press UP DN to a BPF Antenna SK1 press OK to LL switch the frequency lt 20 2 15 2 SK2 save and exit une in E T WFP5 in DTMF a z AF Genl Lvl off upon o Dev and then press completion of all 1 8 0 1kHz 8 UP to enter NFP at settings low frequency Switch to and enter TX Dev WFP1 at amp low frequency is set o Press SK1 SK2 3 9KHz 4 1KHz by default Communication to tune the e Short press UP DN to c Test Set audio deviation g switch the frequency Antenna Press 5 and press OK to Ns Earpiece SK1 RE 20Hz 15KHz save and exit Tune WFP5 in TX Socket SK2 s g AF Genl Lvl upon 5 Max Dev and then 5 m 120mV completion of all press UP to enter 1 9KHz 2 1KHz settings 5 2 frequency Switch to VOX Gain VOX Gain1 Press SK1 SK2 and press OK to enter 7 0mV to begin its menu Select VOX Communication VOX Gain2 sampling Press Gain1 and enter and Test Set 4 0mV Antenna Press OKto save and 5 set to WFP3 BPF VOX Gain3 x Earpiece SK1 return to the G In the menu of VOX lt 20 2 15 2 3 0mV gt Socket SK2 previous menu Gain press UP DN to Lvl VOX Gain4 upon switch among i
54. o signal which is divided into two flows and sent to the baseband processor U202 in AK2347 One flow of audio signal is amplified and then goes to the low pass filter to filter out high frequency audio signal CTCSS CDCSS signal is kept The CTCSS CDCSS signal is sent to MCU U611 for decoding The other flow of audio signal is filtered de emphasized and expanded and then is sent to the audio amplifier U205 where the audio power of the signal is amplified to drive the speaker directly Power Supply Section The 7 4V battery voltage goes to the LDO IC U601 and generates 5V DC voltage which is divided into two flows One flow is converted into 4 5V voltage via the dual LDO IC U602 under the control of MCU one flow 4 5T supplies power for the TX circuit one flow V SAVE HVT TC 580 Service Manual supplies power for VCO under the control of 4 5T V_SAVE is converted to 4 5R via Q604 the other flow goes to the dual LDO IC U603 and generates two flows of voltage 3M1 3 2 supplying power for MCU LCD and PLL U202 AK2347 respectively Signaling Encoding MCU U611 generates two flows of CTCSS CDCSS One flow is output via the RC network and is sent to VCO together with the audio signal for modulation The other flow goes through the RC network to modulate the PLL reference frequency oscillator The signal amplitude of the two flows can be adjusted separately Realization Methods of Basic Functional Modules 1 H
55. ows 70 100 27 55V Duration 18 minutes Orange LED glows 5090 7090 7 35 7 55V Duration 12 minutes Red LED glows 3090 5090 7 00V 7 35V Duration 20 minutes Red LED flashes lt 30 6 50V 7 00V Duration 18 minutes Red LED flashes and low battery alert tone sounds every ten 5 80V 6 50V seconds 49 HVT TC 580 Service Manual Troubleshooting Flow Chart TX Section Start Low TX Power No Sound during No transmission LED fails t gt Replace D609 transmission glow flash Y Normal TX No Check the TX p power supply power Yes Check the audio path MIC D108 No LED of DG03 TX VCO locked Check TX VCO glows red Replace D609 v Check TX path Y Check antenna Check Q402 Q403 Check the APC connection and Q404 circuit 50 HVT TC 580 Service Manual RX Section Check RX power supply circuit RX circuit is normally supplied RX LED works RX frequency is set No Change RX normally correctly gt P frequency RX signaling is set Change RX Rx SQL Level is set Change RX SQL correctly signaling correctly Level Speaker works Replace the Replace RX LED normally speaker D610 Y
56. re please ensure good connection between each test point and the fixture and connect the board to a power supply Tuning Procedures 1 Operations before Tuning 1 2 3 PCB Tuning Before the PCB arrives each work station for specification inspection programs must be downloaded and EEPROM must be initialized by the profiles downloading with a test framework initializing via programming software or through wired clone If any adjustment is required apply a programming cable to enter the adjustment mode for PC programming or manual adjustment Radio Tuning 1 Manual Tuning Hold down PTT and SK1 for 2 seconds while powering on the radio Then the LCD displays Tuning Mode After the keys are released press OK and then press UP DN to select your desired tuning item To enter this item press OK again To return to the previous menu press C The LED solidly glows red for TX group items and green for RX group items Follow the operation instructions to tune each item 2 Automatic Tuning Connect a programming cable to the radio for real time tuning through PC Wired Clone 1 Connect two radios using a cloning cable Then hold down SK1 for 2 seconds while powering the source radio on and the radio enters Clone mode with red LED flashing once The target radio can be directly turned on to enter the mode 2 Press SK2 in Clone mode to switch to Factory Clone mode with red LED flashing twice 40 HVT TC 580 Serv
57. requency respectively and CH5 CH6 as narrow bandwidth with low medium and high frequency respectively Make sure the antenna or load is connected before adjustment Tuning of TX RX VCO Voltage Item Condition Test Adjustment Specifications Test Instrument Test point Part Method Remarks Set the channel to TX CH3 and press 4 0V 0 2V VCO PTT to transmit Adjust TC101 with ceramic tuning tool until the lock voltage meets TC101 the requirements Lock Set the channel to Voltage 1 and press a Check 20 5V Digital PTT to transmit CV Voltmeter Adjust TC102 with Rx Set the channel to ceramic tuning tool until 4 0 0 2 CH3 the lock voltage meets TC102 Lock the requirements CH1 Voltage Set the channel to Check 20 5V 43 HVT 2 Tuning in the mode TC 580 Service Manual Note Make sure the antenna or load is connected before adjustment TX group items go to tune TX items under TX Item menu Adjustment Specifications Item Condition Test Instrument Test point Part Method Remarks Press SK1 SK2 to tune Switch to and Press Preset Communication Antenna the TX preset power enter Pre Power SK1 1 0W Power Test Set Connector value and press OK to and set to WFP3 SK2 save and exit Press SK1 SK2 to tune Switch to and Press Frequency Communication Ant
58. rproof O ring for radio unit 1 30 6001046000000 Rear cover 1 31 7102009000100 Machine screw 2 32 7400279000000 Waterproof PC sheet for aluminum chassis 1 33 7500338000000 Sponge Pad for Crystal 1 34 5205004000020 Accessory jack 1 35 5205005000040 Accessory jack 1 36 6000852000000 Bracket for accessory jack 1 37 5002220000070 Microphone 1 38 7300036000000 Metal dome for numeric key 1 39 6100366000000 Numeric Key 1 40 6001090000000 Ultrasonic front case with the fixing nut for antenna 1 41 6000749000000 Accessory jack cover 1 57 580 Service Manual 42 7500324000000 MIC washer 1 43 7400055000000 MIC net 1 44 6000745000000 Light guide 1 45 7206002200200 Nut for volume switch 1 58 HVT TC 580 Service Manual User s Manual 580 View Top Layer m ls xz cre 010 8 z Ba zl 1512 0502 S zm R24 5 S R206 2 206 214 580 View Bottom Layer E fy i 4 BE J c nu 0206 Ok DAEN TC 580 Level Diagram Rx Section 120dBm 122dBm 104dBm 108dBm 98dBm 103dBm 80dBm 110mVrms 150mVrm
59. s 0 8W C514 C557 ali C543 Speaker T LPF C423 BPF C510 BPF C527 XF501 C547 U201 C268 202 C236 U205 9505 1 9501 f 9502 i AT 41511 3SK318 28 5108 2nd Local 1st Local 24dBm 10dBm gt 4 gt 4 b ar c Each of the levels plotted from RF to the first IF is the level that can provide 124 SINAD for SSG signal through a 470pFb coupling capacitor When AF ouput is adjusted to 0 5W adjust the frequency deviation of IKHz AF level to 3KHz Wide 1 5KHz Narrow Tx Section 12mVrms 160mVrms 125mVrms 45dBm 26dBm 5gBm 4dBm 17qBm 38gBm 36gBm C409 DE A B C174 C405 ANT LPF 0203 0202 109 0100 C208 C222 C279 2SK508NV C116 C170 D403 1 0104 0106 0401 Q402 4 0403 X pios d 25 5108 11 28C5108 2SC4988 RD01MUS1 RQA0002DNS 22077 88179 L 4 RF 4 AF and RF levels measured at high impedance 62 1 TC 580 Block Diagram CTC DCS gt VRCR PLL System
60. tems 1 5mV 2 5mV completion of from VOX to VOX Gain5 sampling VOX Gain5 1 5mV 6 4 6 6V the alert tone sounds to indicate transmission value adjust the inhibition upon Switch to and enter Power Power output voltage press of PTT TX Low Batt and set Digital Voltmeter Supply 5 Supply and inspectthe B x6 2V the alert gt to WFP3 port tone will sound to o l x level indicate transmission inhibition if PTT is held down 46 HVT RX group items go to tune RX items under RX Item menu TC 580 Service Manual X Test Adjustment Specifications Items Condition Test Instrument Test point Part Method Remarks Switch to and enter Adjust the T Check the bandpass BPF Tune WFP1 at nw volume to an Communication waveform and press 2 low frequency is set appropriate Test Set SK1 SK2 to adjust by default Antenna Press value before SSG 119dBm the BPF Tune e Earpiece SK1 tuning so that MOD 1KHz waveform Press OK Socket SK2 the output E Short press UP DN to DEV 3 0KHz to save and exit upon 5 amplitude is not switch the frequency Filter 0 3 3KHz completion of all limited 14 settings SINAD 212dB Switch to and enter SQL 5 WFP1 at Squelch level low frequency is set Communication Level 5 5 by default
61. to increase the value continuously in steps of 1 The tuning value will remain unchanged once it reaches the allowed maximum value Measures on special items SQL On 5 SQL Off 5 and RX Low Voltage Threshold These tuning items are related to AD 42 HVT TC 580 Service Manual sampling Press SK1 or SK2 after entering the above items to activate AD sampling including calculation once Press OK to save the current AD sampling value and exit If neither of SK1 or SK2 is pressed the tuning value will not be updated and AD sampling will not be activated 5 Description of key press Please refer to Software Specifications Description of Modes Manual Tune Mode Description of key press on page 12 6 Tuning Items TX group items Rx Group Items include the Preset Power Frequency Tolerance TX Low Power TX High Power CDCSS Balance CDCSS Deviation CTCSS Deviation low CTCSS Deviation Medium CTCSS Deviation high Deviation TX Low Voltage Threshold and Max Deviation of TX Audio tuned in tuning mode via software and VCO Lock Voltage tuned out of the tuning mode via hardware include the Squelch RX Low Voltage Threshold Max RX Volume and RX Bandpass Filter tuned in tuning mode and VCO Lock Voltage tuned out of the tuning mode 3 Specific Operations and Requirements 1 Tuning out of the mode Note CH1 CH2 and CH3 must be preset as wide bandwidth with low medium and high f
62. ts or characters Press OK first and then immediately to lock unlock the keypad Used to enter characters Ul gt LED Indicator Status indications and alert tones are shown in the table below Operations Functions LED Indications and Alert Tones Wired Clone To enter Wired Clone mode Turn on the source radio with SK1 held down for approximately 2 seconds and turn on the target radio directly The LED on the source radio flashes red once upon power on Status of the source radio in Wired Clone mode After the target radio is turned on and the cloning cable is connected press PTT of the source radio to begin cloning The LED glows red during cloning process The LED flashes orange upon cloning errors Press OK and then the orange LED goes out Press PTT to restart cloning The LED solidly glows orange once cloning is completed Status of the target radio in Wired Clone mode The LED glows green during cloning process The green LED goes out once cloning is completed HVT TC 580 Service Manual Power On to enter User Mode The LED flashes green once and the power on alert tone sounds Low Battery Alert The LED flashes red and a low pitched tone sounds every 10 programmable seconds Transmitting The LED glows red during transmitting When TOT timer expires the radio sounds beep tones continuously A TOT pre alert
63. tted via the antenna after high order harmonics are removed in LPF The APC circuit is composed of U401 Q405 and Q404 U401 controls the bias voltage at the gates of Q402 and Q403 so as to control the TX current and to further regulate power HVT TC 580 Service Manual 3 Block Diagram of RX Low noise Amplifier and The First Mixer Circuit XF501 MEE E o 25 5108 l 35 318 Figure 1 3 Block Diagram of RX RF Circuit Desired and undesired RF signals received via the antenna feed to the band pass filter to filler out undesired out of band interference signal Then the desired RF signal is amplified by the high frequency low noise amplifier Q501 Afterwards the amplified signal goes through the bandpass filter again to filter out undesired out of band interference signal The desired RF signal is mixed with the first local oscillator signal from VCO at Q502 The MCU outputs through APC TU pin a voltage which controls the central frequency of the electrically tunable bandpass filter 2 IF Processing and Audio Demodulation Narrow Band Ceramic Filter 2nd LO Crystal Filter 21 22 XF501 IF AMP 21 7M RSSI 25 5108 Figure 1 4 Block Diagram of IF Processing HVT TC 580 Service Manual The newly generated signal at Q501 is processed by the crystal filter Z1 Z2 or XF501 to generate the first IF signal 21 7MHz After amplified by Q505 this IF signal enters the IF demo
64. witch the frequency and press OK to save the current AD sampling value If neither of SK1 or SK2 is pressed the tuning value will not be updated and AD sampling will not be activated Rx Group Items Including the SQL On 1 SQL On 5 SQL On 9 SQL Off 1 SQL Off 5 SQL Off 9 and Rx Low Voltage Threshold These tuning items are related to AD sampling Short press SK1 or SK2 after entering the above items to activate AD sampling including calculation once Press UP or DN to switch the frequency and press HVT TC 580 Service Manual OK to save the current AD sampling value If neither of SK1 or SK2 is pressed the tuning value will not be updated and AD sampling will not be activated 8 Description of key press Short press indicates to press the key for shorter than 1 second Long press indicates to press the key for 1 second or more HVT TC 580 Service Manual Circuit Description General Realization Method TX Section The audio signal from MIC is amplitude limited and amplified by U203 After that the signal feeds to the AGC circuit and then to the baseband processor U202 in AK2347 where the signal is filtered compressed pre emphasized and amplitude limited The signal from AK2347 goes to VCO for frequency modulation the PLL system is composed of U101 Q100 and Q101 After modulated onto the RF carrier the signal is processed by the buffer amplifiers Q104 and Q106 Then the signal passes through the TX RX switch D401
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