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                                                              FM540 Service Manual 

*  Key 

Enter “*”. 

# Key 

Switch input method. 

Enter Key 

Programmable key. Set as menu navigation enter key by default. 

Up key 

Programmable key. Set as Up Key by default. 

Down Key 

Programmable key. Set as Down Key by default. 

Return Key 

Programmable key. Set as Return Key by default. 

MIC 

Press 

Ǐ

PTT

ǐ

  key and speak to the mic to transmit. 

Digital Keypad (0

̚

9) 

10 keys in total. Press the key to enter the number or edit the text message or new contact. 

 

 

 

 

 

 

 

 

 

 

 

 

Page 5 of 99 

Summary of Contents for FM540

Page 1: ...FM540 Service Manual FM540 㔤 ሱ䶒 I ...

Page 2: ... 6 3 3 RX Principle 7 3 4 TX Principle 8 3 5 Principle of Frequency Synthesizer 9 3 6 Audio Processing Circuit 10 3 7 Power Supply 10 3 8 MCU Unit 11 3 9 Semiconductor Description 13 4 Feature Description and Parameter Settings 19 4 1 TOT time out timer 19 4 2 Channel Scan 19 4 2 1 Carrier Control Scan 19 4 2 2 Scan Revert Channel 20 4 3 Kill and Unkill 20 4 4 Emergency 20 4 5 Feature and Paramete...

Page 3: ... 32 Appendix 1 Acronyms 34 Appendix2 Material List Electrics136 174MHz 35 Appendix 3 Material Specification Electronical Parts 400 470 55 Appendix 4 Material Specification Stucture 74 Figure 1 FM540 01Mainboard Schematic Diagram 136 174MHz 79 Figure 2 FM540 01 Top Layer Position Diagram 136 174MHz 86 Figure 3 FM540 01Bottom Layer Position Diagram 136 174MHz 87 Figure 4 FM540 02 Mainboard Schematic...

Page 4: ... below to avoid fire or damage to radio Maximum continuous working time for transmitingis 1 minute and 4 mniutes for receiving Long transmitting or continuous operationon high power mode may cause overheat on the back of the device Do not disassemble the device in any condition Do not expose the radio under direct sunlight for long time or put it near any heating device Avoid putting the radio in ...

Page 5: ... indicator glows transmitting Red indicator flashes emergency power on self test failure or program auto upgrade failure Green indicator glows signals are being received or channel activities are detected Orange indicator flashes it is in call hang time digital Green indicator flashes scanning 7 Speaker 8 P3 Key programmable key 9 power on off Button Press at least 2 seconds the button to power on...

Page 6: ...e signal bars Unread Message Full Inbox The current channel is scanning High Power Low Power Analog Channel Digital Channel Emergency state except secret alarm or an emergency alarm is received Private Call Group Call All Call Transmitting Receiving The current digital channel is encrypted Talkaround Page 3 of 99 ...

Page 7: ... Manual 2 3 Rear Panel No Part Name No Part Name 1 Antenna Port 2 Power Port 3 External Speaker Port 2 4 Microphone Handheld No Part Name 1 PTT Key Press the key to transmit and release to receive ķ ĸ Ĺ Page 4 of 99 ...

Page 8: ...key Programmable key Set as Up Key by default 6 Down Key Programmable key Set as Down Key by default 7 Return Key Programmable key Set as Return Key by default 8 MIC Press ǏPTTǐ key and speak to the mic to transmit 9 Digital Keypad 0 9 10 keys in total Press the key to enter the number or edit the text message or new contact Page 5 of 99 ...

Page 9: ...5MHz and the second one is 450 kHz The first local oscillator is generated by the frequency synthesizer while the second one is generated by quadruple frequency of12 8MHz Txsignal is generated by the frequency synthesizer and the reference frequency of the frequency synthesizer is generated by TCXO ANT SW RF AMP PA AMP TX AMP PLL VCO IF SYSTEM X4 multiply TCXO 12 8MHz 51 65MHz MCF CODEC AF AMP MIC...

Page 10: ...enerate the first intermediate frequency 51 65MHz signal IF Circuit The first IF signal passes the crystal filter XF700 to remove the signals from the adjacent channel or other channels The first IF signal from the crystal filter is sent to the IF processing IC IC6 GT3136 after being amplified by the first IF amplifier Q20 IF IC includes secondary mixer IF amplifier limiter frequency detector nois...

Page 11: ...he modulated RF signal from VCO is sent to Q600 for power amplification after being amplified by Q1 Q2 and Q5 IC4 is controlled by MCU APC circuit to change the grid bias voltage easily controlling the output power of the transmitter APC automatic power control Circuit D9 and D10 are standing wave current detection IC4 is power amplifier If the output power of the transmitter is too high the power...

Page 12: ...nce frequency from TCXO temperature controlled crystal oscillator is divided by the programmable reference divider in IC3 to generate reference frequency of 5kHz or 6 25kHz based on the set channel frequency and controlled by MCU The oscillation frequency from VCO is sent to IC3 after being multiplied by second multiplier circuit and will then be compared to reference frequency after being divided...

Page 13: ...TDA2822 for amplification motivating the speaker to sound Squelch Circuit demodulated and output byIC700 it passes filter circuit and the noise will be removed from demodulated signal and amplified by Q700 after detection by D701 it will be sent to MCU MCU identifies the noise volume and controls the squelch Speaker Impedance 16Ω Notes Any terminal of the speaker must not be attached to the ground...

Page 14: ...CSS decoding Completes DCS decoding Squelch detection and control Control the content of voice prompt Memorizer E2PROMˈAT24LC512BN It stores channel data CTCSS DCS data feature configuration data and parameter adjustment data CTCSS DCS Signal Encoding and Decoding The CTCSS DCS signal generated by MCU is sent separately to VCO and TCXO for modulation The CTCSS DCS signal from the receiver is sent ...

Page 15: ...nal DCS digital code squelch is a continuous numerical code which is modulated along with the speech signal on the carrier to control the squelch If the DCS feature is set the speaker is on only when the same DCS code is received to avoid the unnecessary signal interference 83 kinds of standard code of this radio are available See chart 3 2 DCS signal is generated by MCU PWM wave form and it is se...

Page 16: ...31 624 754 074 172 311 432 627 3 9 Semiconductor Description Chart 3 3 Microprocessor M30620 Port Description Pin No Port Name Input output Function 1 VCCN D A Output Reference frequency adjustment output 2 TONE_OUT D A Output DTMF Tone output beep output 3 HSDI I Tone decoding input 4 EPDT I O EEPROM data input output 5 EPCK O EEPROM clock 6 BYTE I GND 7 CNVSS I GND 8 BSHIFT O Clock beat frequenc...

Page 17: ... O FLASH data output 23 S_SO I FLASHdata output 24 NC O NC 25 S_SCK O FLASH data output 26 PC TV O TX power receving frequency band voltage tunning 27 S_SI FLASH data output 28 NC O NC 29 TXD O TXD1 output 30 RXD I RXD1 input 31 C_CLK Emulator interface 32 C_BUSY O Emulator interface 33 TXD0 O NC 34 RXD0 I NC 35 AFCO_1 O RX TX audio power amplification control pin 36 NC O NC Page 14 of 99 ...

Page 18: ...ata output pin 46 GREEN_LED I RX status indicator 47 RED_LED I TX status indicator 48 8TC I 8T control pin 49 8RC I 8R control pin 50 SBC I SB control pin 51 INTO O Baseband wake up pin 52 PLLBYOPASS O Baseband bypass pin 53 PLLSEL2 O PLLHigh low Selection 54 HCSN O Baseband Chip Selection 55 HWRN I Baseband data writing enable 56 HRDN O Baseband data reading enable 57 HOBIB O Baseband data check ...

Page 19: ... I O HPI address bus 71 SI D7 I LCD data output 72 SCL D6 I LCD data output 73 A0 I L LCD data output 74 RST I LCD reset pin 75 CS1 I LCD data output 76 NC O NC 77 NC O NC 78 BASEBAND_C O Baseband power control pin 79 D0 O DTMF data pin 80 D1 O DTMF data pin 81 D2 O DTMF data pin 82 D3 O DTMF data pin 83 DV O DTMF data pin 84 NC O NC 85 NC O NC 86 HOOK HOOK control pin 87 BEEP_C I Reverse detectio...

Page 20: ...ure Description IC202 PST9140NR MCU reset circuit IC3 MB15E03 Frequency synthesizer IC4 NJM2904 APC volatage comparison driver IC6 GT3136 Receiver second local oscillator second IF amplification amplitude limiting demodulation noise amplification IC204 NJM2902 Receiver demodulation signal amplification and filtering IC1 M30620 MCU IC200 AT24C512C E2 PROM stores channel frequency data feature setti...

Page 21: ...ise amplification Q19 3SK318 1st level mixer Q20 2SC5108 First IF amplifier Q21 2SC4617 Receiver noise amplifier Q22 FMMT717 Audio output control switch Q23 DTC144EE Audio power amplification control switch IC9 L7808CV 8V three terminal regulated output IC11 XC6204B502MR Adjustable 5C regulated output Q40 KTA1298 Adjustable 8R regulated output Q38 KTA1298 Adjustable 8T regulated output IC102 XC622...

Page 22: ...or a second transmission please press the PTT button after a certain period set by the dealer If the dealer preprograms the pre warning feature a warning is given when the transmitting period gets close to its time out timer limit indicating the transmission will be forbidden soon 4 2 Channel Scan Channel Scan is able to search for the channel where there is a signal and the radio stays on the cha...

Page 23: ...ss the Emergency Off shortcut key Alarm Type None no alarm feature by default and the alarm cannot be initiated by pressing the emergency button Siren Only the radio only sounds siren locally Regular acoustooptic alert for alarm status able to receive response from other members Secret no acoustooptic alert for alarm and do not receive response from members Secret with Voice no acoustooptic alert ...

Page 24: ...gs for FM540 The stepsof setting parameters with computer are as below Step 1 Install FM540 programming software on the computer Step 2 Use FM540 programming cable to connect the radio to PC serial port See the following Note please turn off the radio before connection Step 3 Turn on the mobile radio Step 4 Click to operateFM540 programming software program Step 5 Click Read in the main menu of FM...

Page 25: ...th a precise and compact mechanism The assembly and disassembly of the radio must be carefully performed during the repair The description is as follows 5 1 Exploded View No Part No Description Quantity 1 7WFP 4090 01A FM540lens protective film 1 2 7MBP 4090 02A WC FM540 LCD film 1 6 5217 66 0 Page 22 of 99 ...

Page 26: ...39 04A W0 PT8000 front panel upper gasket 1 14 7MHL 1939 01C L0 PT8000 aluminum alloy top cover 1 15 3WPD S7038 B PT8000 8100 power connecting cable 1 16 7MBP 7038 03A W0 PT8100 power cable clip 1 17 7MHF 1939 01A L0 PT8000 metal plate 1 18 7MHR 1943 02A W0 PT8200speaker hole plug 1 19 7SAF 030100M SZYB N1 Screw M3 10 with spring washer 5 20 3CR7 S1943 B PT8200 antenna head 1 21 1MR3 RA30H4047M Po...

Page 27: ...1 40 7GCM 508305 J FM540 LCD foam cushion 1 41 4PC7 4090H A FM540 LCD module 1 42 7MHS 4090 02A W FM540 LCD bracket 1 43 7MHS 4090 01A J FM540 metal dome key 1 44 6SS2 4090 HKA FM540 keyboard suite 1 45 7MHS 4090 02A W FM540 key PCB grounding spring 1 46 7STF 026060B SZYB Z Screw M2 6 6 4 5 2 Maintenance and Disassembling Description 5 2 1 RF PCB Disassembling Description Step 1 Unscrew the six M3...

Page 28: ...assemble the metal panel plastic buckleand speaker plug see the picture below Step 4 Unplug the flat cable and speaker cable and use the soldering iron to separate the antenna head from RF PCB loosen the screw and carefully remove RF PCB from the top aluminum cover seethe picture shown below Page 25 of 99 ...

Page 29: ...elow Step 2 remove the flat cable and speaker cable from the mainboard as shown in ĸ Step 3 remove the two M2 5 5 panel screws as shown in Ĺ and separate the panel from the main unit Step 4 remove the volume knob and take off the circlipon the knob as well as the the switchnut as shown in ĺ Step 5 remove the four M2 6 6 KEY PCB fixed screws as shown in Ļ and remove KEY PCB from the Page 26 of 99 ...

Page 30: ...est and modulation according to the technical specifications of the radio 6 1 1 Parts Required for Modulation 1 Antenna Interface Converter 2 Universal Interface 6 1 2 Manual Modulation The radio needs adjustment on 5 frequencies The channel frequencies are as follows Model Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 FM540 VHF 136 05MHz 145 55MHz 155 05MHz 164 55MHz 173 95MHz FM540 UHF 400 0...

Page 31: ...uter mode DCS frequency deviation adjustDCS as 0 3 0 5kHz 6 CTCSS Frequency Deviation CTCSS 67 0Hz 150 4Hz 250 4Hz On the computer mode CTCSS 67Hz 150 4Hz 250 4Hz frequency deviation adjust CTCSS frequency deviation as 0 3 0 5kHzDŽ 7 DTMF Frequency Deviation On the computer mode DTMF frequency deviation adjust DTMF frequency deviation as 1 5 2kHz 8 Battery low voltage indication when transmitting S...

Page 32: ...fications below should be tested in test mode RX 1 Sensitivity 120dBm 0 25uV 12dB SINAD 2 Distortion 5 3 Current static current 100mA RX working current 400mA 4 CTCSS DCS Decoding the radio decodes correctly when it is 116dBm 0 35uV 5 Sensitivity of the 3rd squelch off when RF input is 124dBm the squelch should be turned off 6 Sensitivity of the 3rd squelch on the squelch should be turned on when ...

Page 33: ...ediate Frequency 1ST IF 51 65MHz 2nd IF 450kHz Working Voltage 13 8V negative pole grounding Working Temperature 30ć 60ć 7 2 RX Specification Sensitivity 12dB SINAD 0 25μV Squelch on Sensitivity 0 18uV Receiver Residual Output 35dB Modulated RX Bandwidth 3 5kHz Adjacent Channel Selectivity 50dB Intermodulation Rejection 65dB Spurious Response Rejection 70dB Audio Output Power 4W BTL distortion 10 ...

Page 34: ...W 10W 5W 13 8 DC Frequency Stability 2 5ppm Maximum Modulated Frequency Deviation 2 5kHz Modulated Distortion 300 3000Hz 3 Adjacent Channel TX Power 60dB Spurious Transmission 70 dB Residual Modulation 40 dB TX Consumption Current 8A 13 8 DC Page 31 of 99 ...

Page 35: ... Load Around 16Ω 10W Adjustable Power Supply 0v 20v maximum current is 20A 9 Troubleshooting Serial No Problems Causes and Solutions 1 Power on Failure AˊThe battery may be out of power Please charge or change the battery BˊThe power switch failed Change the power switch CˊCPU failed Change to a new IC DˊThe protective tube F100 failed Change to a new one 2 PLL loses lock beeping A The PLL crystal...

Page 36: ...ting but no voice is heard Aˊ No power output from the power amplifier tube Change to a new one BˊThe microphone failed Change to a new one CˊThe Operational amplifier Q601 failed Change to a new one 6 The green indicator glows when receiving but no voice is heard AˊThe speaker is broken Change to a new one BˊThe audio power amplifier U800 failed Change to a new IC CˊThe switch tube Q801 failed Ch...

Page 37: ...lly erasable programmable read only memory HPF high pass filter IDC instantaneous deviation control IF intermediate frequency LED Light Emitting Diode LNA low noise amplifier LPF low pass filter MCU micro control unit MIC microphone MOD modulation MONI monitor PLL phase lock loop PTT push to talk RX receiver SPK speaker TCXO temperature control X oscillator TX transmitter UL un lock VCO voltage co...

Page 38: ...1 5FT3 CFWLB450KJ FA B0 Ceramic filter CFWLB450KJFA B0 450kHz 2kHz murata leadfree 1 5FT3 LTM450FW A R Ceramic filter LTM450FW 450KHZ 7KHZ 1 5XT3 JTBM450C24 RCeramic filter frequency detectorˈ JTBM450C24 leadfree 1 2RV3 22ZR 10D R Plug In Varistor 22ZR 10D 1 3CE3 CZ35 D 3 5mm earpiece socket PJ 327 High 5mm pin length 2 9mm leadfree 1 2CE3 GM250 471M 0812 R aluminium electrolytic capacito r 8 12 4...

Page 39: ...d PCB 5FE1 BLM41P600S PT R Chip EMI suppression filter EMI FILTER SMT BLM41P600SPT 1206 l eadfree 2 L25 L26 1IS1 GT3136 E patch special IC GT3136 SSOP16 1 IC6 2LH1 R903R0 L11 05 R chip Air Core Inductor Wire Diameter φ0 9 Inner Diameter φ3 0 11Circles Leg s Height 0 5mm Roll Back 1 L9 5FC1 D51606GQ1 0705 R chip Crystal Oscillator FP520 DSF753SDF 51 65MHz 3KH z 5dB 7 0 5 0 1 3 1 Z1 2LH1 R903R0 L05 ...

Page 40: ...05Z Chip Multilayer Capacitor 1005 1uF 80 20 16V Y5 V 2 C11 C386 2CC1 10 C0G500 1 50J R Chip Multilayer Capacitor 1005 15P 5 50V C0G 1 C280 2CC1 10 C0G500 1 80J R Chip Multilayer Capacitor 1005 18P 5 50V C0G 1 C168 2CC1 10 X7R500 1 82K R Chip Multilayer Capacitor 1005 1800P 10 50V X7R 1 C217 2CC1 10 C0G500 2 20J R Chip Multilayer Capacitor 1005 22P 5 50V C0G 2 C309 C344 2CC1 10 X7R500 2 71K R Chip...

Page 41: ...acitor 3216 10P 5 1000V C0G 1 C417 2CC1 10 X7R500 1 03K R Chip Multilayer Capacitor 1005 10nF 10 50V X7R 14 C133 C81 C110 C115 C121 C153 C33 C51 C330 C333 C55 C385 C170 C171 2CC1 32 C0G102 1 02J R Chip Multilayer Capacitor 3216 1000P 5 1000V C0G 2 C14 C24 2CC1 32 C0G102 2 R0J R Chip Multilayer Capacitor 3216 2P 0 25P 1000V C0G 1 C418 2CC1 32 C0G102 2 70J R Chip Multilayer Capacitor 3216 27P 5 1000...

Page 42: ... C395 C348 C9 C158 C23 6 C240 C242 C244 C263 C420 C421 2CC1 16 X7R500 1 02K R Chip Multilayer Capacitor 1608 1000P 10 50V X7R 12 C64 C67 C78 C79 C84 C85 C86 C101 C22 C25 C26 R7 2CC1 10 X7R500 1 02K R Chip Multilayer Capacitor 1005 1000P 10 50V X7R 33 C19 C60 C61 C92 C98 C99 C13 C82 C21 C167 C188 C189 C196 C206 C36 C37 C214 C220 C223 C231 C49 C89 C90 C57 C370 C58 C59 C278 C279 C282 C4 27 C428 C91 2...

Page 43: ...9 R0C Chip Multilayer Capacitor 1005 9P 0 25P 50V C0G 1 C100 2CC1 10 X7R160 1 04K R Chip Multilayer Capacitor 1005 100nF 10 16V X7R 49 C48 C44 C65 C173 C183 C184 C186 C187 C102 C209 C210 C211 C213 C235 C259 C264 C268 C271 C325 C17 C329 C83 C334 C337 C338 C172 C394 C260 C262 C272 C275 C281 C300 C302 C315 C377 C436 C437 C438 C439 C440 C441 C461 C462 C463 C464 C144 C190 C96 2CC1 10 C0G500 1 01J R Chi...

Page 44: ... C0G 3 C194 C197 C198 2CC1 10 C0G500 3 R5C R Chip Multilayer Capacitor 1005 3 5P 0 25P 50V C0G 1 C180 2CC1 10 C0G500 2 R0C R Chip Multilayer Capacitor 1005 2P 0 25P 50V C0G 1 C104 2CC1 16 C0G500 1 01J R Chip Multilayer Capacitor 1608 100P 5 50V C0G 3 C18 C111ˈC47 2CC1 16 C0G500 1 R0C R Chip Multilayer Capacitor 1608 1P 0 25P 50V C0G 2 C4 C5 2CC1 16 C0G500 8 R0C R Chip Multilayer Capacitor 1608 8P ...

Page 45: ...50V X7R 2 C389 C387 2CC1 10 X7R500 1 83K Chip Multilayer Capacitor 1005 18nF 10 50V X7R 2 C390 C391 2CC1 10 C0G500 1 51J R Chip Multilayer Capacitor 1005 150P 5 50V C0G 2 C195 C204 2CC1 16 C0G500 1 R5B Chip Multilayer Capacitor 1608 1 5P 0 1P 50V C0G 1 C16 1DS1 HSC277 R Chip switching diode HSC277 1608 2 D2 D19 1DG1 DSM3MA1 R Chip diode SM3MA1 1 D34 1DS1 DA2S10100L R Chip switching diode DA2S10100...

Page 46: ...8 D29 D30 1DV1 1SV278 R chipVariode 1SV278 T1 1 D8 2CT1 TP20 100 2R 2M R chip tantalum capacitor 2012 2 2μF 20 10V 1 C233 2CT1 TS32 160 1R 0M R chip tantalum capacitor 3216 1μF 20 16V 1 C117 2CT1 TP20 100 4R 7M R chip tantalum capacitor 2012 4 7μF 20 10V 7 C8 C216 C226 C42 C131 C159 C346 2CT1 TS32 6R3 15 0M R chip tantalum capacitor 3216 15μF 20 6 3V 2 C149 C137 2CT1 TS32 350 R1 0M R chip tantalum...

Page 47: ... 4 75K R Chip Multilayer Capacitor 2012 4 7uF 10 6 3V X7R GRM219R6J475KE19D 5 C154 C237 C241 C257 C258 3FW1 1206L150PR R chip fuse 1206L150PR 1206 1 5A 6V 1 F1 1IS1 HT9172 E R chip DecodingIC DTMF Decoding IC HT9172 18SOP 1 IC5 1TT1 2SC3356 R24 R chip triode 2SC3356 R24 SOT23 NPN 2 Q6 Q12 2LW1 16UC R33G Chip Wire wound Inductance 1608 330nH 2 C1608BR3 3G leadfree 8 L5 L37 L51 L21 L68 L27 L2 L34 2L...

Page 48: ... L76 L78 L67 L71 L73 L8 0 L81 L203 2RS1 20 470J R Chip Resistance 2012 47Ω 5 1 L31 2RS1 20 220J R Chip Resistance 2012 22Ω 5 1 L30 5FE1 BLM21P300S R chip EMIsuppression filter 2012 BLM21P300S BLM21P G300S 0149 05 3 L64 L66 L72 2LL1 16 R22J R multilayer inductor 1608 0 22μH 5 LG HK 1608R22J T MLG1608B220 N 1 L44 2LL1 16 1R0K R multilayer inductor 1608 1μH 10 MLF1608A1 R0K 1 L48 2LL1 16 R56K R multi...

Page 49: ...nH 2 sagamiCeramic Chip Wire wound Inductance 1 L35 2LW1 20UC 390J R Chip Wire wound Inductance 2012 39nH 5 Ceramic Chip C2012C 39NJ 2 L29 L57 2LW1 20UC 560JA R Chip Wire wound Inductance 2012 56nH 5 Ceramic Chip C2012C 56NJ 1 L55 2RS1 20 000O R Chip Resistance 2012 0Ω 1 L54 2LW1 20UC 470GA R Chip Wire wound Inductance 2012 47nH 2 Ceramic Chip C2012C 47NG 1 L58 5FE1 BLM11A221S PT R chip EMIsuppres...

Page 50: ...15E03SL TSSOP 16 1 IC3 1TF1 3SK318 R chipDual Gate MOSFET 3SK318 YB 2 Q18 Q19 1IL1 NJM2904V R chip linear IC Dual Operational Amplifier NJM2904V TSSOP 8 1 IC4 1IL1 NJM2902V R chiplinear IC Quad Operational Amplifier NJM2902V SMD 1 IC10 1TT1 DTC144EE R chip triode Digtal Triode DTC144EE 26 SOT323 9 Q707 Q9 Q17 Q22 Q28 Q37 Q42 Q43 Q44 1TT1 KRC404RTK R chip triode KRC404RTX ND NPN 1 Q41 1TT1 SSM3J15F...

Page 51: ...A1641 S 2SA1834 20V 10A 1 Q39 1IS1 PST9124NR R chipresetIC ResetIC PST9124NR 1 IC202 2RS1 10 222J R Chip Resistance 1005 2 2K 5 3 R1 R227 R148 2RS1 10 100J R Chip Resistance 1005 10Ω 5 5 R3 R2 R341 R71 R82 2RS1 10 472J R Chip Resistance 1005 4 7K 5 11 R74 R5 R39 R168 R181 R187 R283 R288 R289 R304 R91 2RS1 10 331J R Chip Resistance 1005 330Ω 5 5 R14 R43 R100 R101 R55 2RS1 10 123J R Chip Resistance ...

Page 52: ... R150 C249 R153 C 253 R155 C52 C53 R27 2RS1 10 823J R Chip Resistance 1005 82K 5 2 R75ˈC451 2RS1 10 182J R Chip Resistance 1005 1 8K 5 1 R21 2RS1 10 681J R Chip Resistance 1005 680Ω 5 1 R54 2RS1 10 103J R Chip Resistance 1005 10K 5 29 R196 R205 R81 R35 R79 R24 R112 R15 R233 R280 R10 R284 R285 R13 R305 R306 R307 R309 R311 R313 R76 R344 R34 5 R346 R362 R374 R375 R377 R378 2RS1 10 154J R Chip Resista...

Page 53: ... R Chip Resistance 1005 47K 5 15 R162 R127 R129 R141 R105 R123 R89 R126 R321 R363 R364 R365 R370 R371 R372 2RS1 10 105J R Chip Resistance 1005 1M 5 7 R87 R137 R139 R130 R131 R133 R312 2RS1 10 102J R Chip Resistance 1005 1K 5 19 R282 R57 R170 R171 R70 R104 R201 R48 R83 R 315 R136 R337 R292 R144 R169 R176 R180 R340 R379 2RS1 10 184J R Chip Resistance 1005 180K 5 3 R177 R92 R117 2RS1 10 151J R Chip R...

Page 54: ...23 R22 2RS1 10 334J R Chip Resistance 1005 330K 5 3 R108 R134 R339 2RS1 10 153J R Chip Resistance 1005 15K 5 2 R56 R366 2RS1 10 471J R Chip Resistance 1005 470Ω 5 2 R290 R291 2RS1 10 560J R Chip Resistance 1005 56Ω 5 2 R115 R135 2RS1 16 152J R Chip Resistance 1608 1 5K 5 1 R41 2RS1 16 101J R Chip Resistance 1608 100Ω 5 1 R4 2RS1 16 121J R Chip Resistance 1608 120Ω 5 1 R61 2RS1 10 220J R Chip Resis...

Page 55: ...62J R Chip Resistance 1005 5 6K 5 2 R361 R175 2RS1 10 512J R Chip Resistance 1005 5 1K 5 3 R179 R200 R219 2RS1 10 822J R Chip Resistance 1005 8 2K 5 1 R184 2RS1 10 821J R Chip Resistance 1005 820Ω 5 1 R159 2RS1 32 221J R Chip Resistance 3216 220Ω 5 2 R46 R47 2RT1 NTH5G16P42 B104K R chip Thermistor 1608 NTH5G16P42B104K07 TH 2 R90 R138 1IS1 SCT3252PS Digital Baseband Processing Chip SCT3252PSˈLQFP10...

Page 56: ...20 FM540 Specialized Material WM8758CB 32 Pin QPN Package5 5 0 9MM leadfree 1 U6 1IS1 XC6204B332 MR Chip Voltage RegulatorIC Voltage Regulator Integrated 3 3V SOT 23 5 150mA 1 IC8 1IS1 XC6228D122V R Chip Specialized IC Power Supply IC XC6228D122VR G SOT 25J 5PIN leadfree 1 IC102 1IS1 TA78033AF E R chip Voltage Regulator IC TA78033AF leadfree 1 IC2 5XT1 3R58 A E R chip Crystal Oscillator 3 58MHz SM...

Page 57: ...2pF 5 High Q High Power Ceramics Capacitor 250Vˈ 1 C32 2CT1 TS32 350 R3 3M R chip tantalum capacitor 3216 0 33μF 20 35V TS Series A Level 1 C113 2CC1 16 C0G500 1 30J R Chip Multilayer Capacitor 1608 13P 5 50V C0G 1 C34 2CC1 16 C0G500 2 00J R Chip Multilayer Capacitor 1608 20P 5 50V C0G 1 C124 2RS1 10 221J R Chip Resistance 1005 220Ω 5 2 R147 R158 2CC1 20 X7R250 1 05K Chip Multilayer Capacitor 2012...

Page 58: ... wound Inductance 2012 27nH 2 Ceramics Core HWI0805UC27NG 1 L3 2CC1 10 C0G500 3 R0B Chip Multilayer Capacitor 1005 3P 0 1P 50V C0G 1 C106 Appendix 3 Material Specification Electronical Parts 400 470 Material No Material Name Specification Quantity Note FM540 02 Main Machine 400 470MHZ 6 25KHZ 0 6SS2 4090 BMB FM540 02 Mobile Radio FM540 02ˈDPMR Digital Mobile Radio 400 470MHz 25W 1 Page 55 of 99 ...

Page 59: ...istor 22ZR 10D 1 3CE3 CZ35 D 3 5mm Earpiece Socket R 3 5mm Earpiece Socket PJ 327 Height 5mm Pin Length 2 9mm leadfree 1 2CE3 GM250 471M 0812 R Plug In Aluminum Electrolytic Capacitor 8 12 470μF 20 25V GM Type 1 1IS3 L7808CV E R Plug In VotageRegulator IC Three Terminal Voltage Regulator L7808CV 8V TO220 1 1IS3 TDA1519C E R Audio Amplifier IC TDA1519C SIL9 Plug In 1 3CL3 PH 20002 R Stripe Connecto...

Page 60: ...ir Core Inductor Wire Diameter φ0 9 Inner Diameter φ3 0 11Circles Legs Height 0 5mm Back Roll 1 L9 5FC1 D51606GQ1 0705 R chip Crystal Filter FP520 DSF753SDF 51 65MHz 3KHz 5dB 7 0 5 0 1 3 1 Z1 2LH1 1R42R0 L02 00 R chip Air Core Inductor Wire Diameter φ1 4 Inner Diameter φ2 0 2Circles ReverseDirector Low Pin 4 L82 L19 L28 L10 2LW1 25UC 103J R Chip Wire wound Inductance 2520 10μH 5 Ceramic Core FLM25...

Page 61: ...pacitor 1005 13P 5 50V C0G 1 C95 2CC1 10 C0G500 1 80J R Chip Multilayer Capacitor 1005 18P 5 50V C0G 1 C732 2CC1 10 X7R500 1 82K R Chip Multilayer Capacitor 1005 1800P 10 50V X7R 1 C217 2CC1 10 C0G500 2 20J R Chip Multilayer Capacitor 1005 22P 5 50V C0G 5 C309 C344 C27 C28 C97 2CC1 10 X7R500 2 71K R Chip Multilayer Capacitor 1005 270P 10 50V X7R 1 C469 2CC1 10 X7R160 3 33K R Chip Multilayer Capaci...

Page 62: ...0J R Chip Multilayer Capacitor 3216 3P 0 25P 1000V C0G 2 C419 C15 5OD1 12R28 ACL 2 520 Chip Temperature Compensated Capacitor DSA221SJ 12 2880MHz 1 5PPm 40 85ć 2 5 2 0 0 8mm 1 Y3 2CC1 10 X7R500 4 71K R Chip Multilayer Capacitor 1005 470P 10 50V X7R 48 C3 C12 C19 C20 C54 C87 C92 C116 C119 C136 C148 C151 C157 C160 C169 C174 C178 C207 C 212 C215 C218 C221 C222 C274 C283 C332 C33 9 C340 C342 C343 C347...

Page 63: ... C22 2CC1 10 C0G500 R50B R Chip Multilayer Capacitor 1005 0 5P 0 1P 50V C0G 4 C409 C406 C398 C4 2CC1 10 X7R250 1 03K Chip Multilayer Capacitor 1005 10nF 10 25V X7R 1 C145 2CC1 10 C0G500 3 31J Chip Multilayer Capacitor 1005 330P 5 50V C0G 1 C140 2CC1 10 C0G500 6 80J R Chip Multilayer Capacitor 1005 68P 5 50V C0G 1 C132 2CC1 10 C0G500 4 70J R Chip Multilayer Capacitor 1005 47P 5 50V C0G 1 C129 2CC1 ...

Page 64: ...2 C103 C114 C349 C350 C351 C354 C356 C359 C360 C361 C362 C363 C378 C379 C380 C381 C382 C383 C384 C125 C 36 C37 C99 C90 C91 2CC1 10 C0G500 8 20J R Chip Multilayer Capacitor 1005 82P 5 50V C0G 1 C234 2CC1 10 X7R250 2 23K R Chip Multilayer Capacitor 1005 22nF 10 25V X7R 2 C239 C238 2CC1 10 X7R100 3 93K R Chip Multilayer Capacitor 1005 39nF 10 10V X7R 2 C250 C251 2CC1 10 X7R250 1 23K R Chip Multilayer...

Page 65: ...1P 50V C0G 1 C5 2CC1 10 C0G500 5 R0C R Chip Multilayer Capacitor 1005 5P 0 25P 50V C0G 1 C2 2CC1 10 C0G500 3 30J R Chip Multilayer Capacitor 1005 33P 5 50V C0G 4 C6 C147 C232 C130 2CC1 10 X7R160 4 73K R Chip Multilayer Capacitor 1005 47nF 10 16V X7R 1 C287 2RS1 16 000O R Chip Resistance 1608 0Ω 5 L13 C30 L62 L29 R7 2CC1 16 C0G500 R75B Chip Multilayer Capacitor 1608 0 75P 0 1P 50V C0G 1 C176 2LL1 1...

Page 66: ...nce0 6 OhmsˈRevert Capacitor 1 2PFˈ30V 2 D2 D19 1DG1 DSM3MA1 R Chip diode SM3MA1 1 D34 1DS1 DA2S10100L R Chip switching diode DA2S10100L 3 D12 D15 D709 1DS1 RB706F 40 R Chip switching diode Schottky Barrier Diode RB706F 40 SOT 323 3 D9 D10 D25 1DS1 DA221 R Chip switching diode Dual Diode DA221 K SOT416 1 D13 1DS1 DAN222 R Chip switching diode Dual DiodeDAN222 TL SOT23 ROHM 2 D20 D21 1DZ1 HZU5ALL R...

Page 67: ...alum capacitor 2012 4 7μF 20 10V TP Series P Level 7 C8 C216 C226 C42 C131 C159 C346 2CT1 TS32 6R3 15 0M R chip tantalum capacitor 3216 15μF 20 6 3V TS Series A Level 2 C149 C137 2CT1 TS32 350 R1 0M R chip tantalum capacitor 3216 0 1μF 20 35V TS Series A Level 2 C109 C113 2CC1 32 Y5V160 1 06Z R Chip Multilayer Capacitor 3216 10μF 80 20 16V Y5V 1 C265 2CC1 20 Y5V160 1 05Z R Chip Multilayer Capacito...

Page 68: ...eadfr ee 6 L5 L37 L51 L21 L68 L27 2LL1 16 33NJ R multilayer inductor 1608 33nH 5 MLG1608B33NJ 2 L7 L12 2LW1 25UC 331K R Chip Wire wound Inductance 2520 330nH 10 Ceramic Core FLM2520 R33K SGWI2520HR3 3J 1 L49 2LW1 25UC 561K R Chip Wire wound Inductance 2520 560nH 10 Ceramic Core FLM2520 R56K 1 L50 2LW1 16UC 680J R Chip Wire wound Inductance 1608 68nH 5 Ceramic Core C1608CB 68NJ 2 L53 L47 5FE1 BLM11...

Page 69: ... L17 2LL1 16 18NJ R multilayer inductor 1608 18nH 5 MLG1608B18NJ 2 L45 L46 2LW1 16UC 390G Chip Wire wound Inductance 1608 39nH 2 Ceramic Core C1608CB 39NG 1 L38 2LW1 20UC 120J Chip Wire wound Inductance 2012 12nH 5 Ceramic Core C2012C 12NJ 1 L35 2LW1 16UC 102J Chip Wire wound Inductance 1608 1uH 5 MLG1608S1R0JT 2 L2 L34 2RS1 16 221J R Chip Resistance 1608 220Ω 5 1 R45 2LH1 R401R2 L03 05 Chip Air C...

Page 70: ...ing diode Replaced By 1DS1 L709CE L8104 Litec leadfree 4 D3 D11 D36 D37 1IS1 MB15E03SL E R ChipPLL IC MB15E03SL TSSOP 16 1 IC3 1TF1 3SK318 R chip Double Gate Field Effect Transistor 3SK318 YB 2 Q18 Q19 1IL1 NJM2904V R chiplinear IC Double Operational Amplifier NJM2904V TSSOP 8 1 IC4 1IL1 NJM2902V R chiplinear IC Quad Operational Amplifier NJM2902V SMD 1 IC10 1TT1 DTC144EE R chip triode Digital Tri...

Page 71: ...C202 2RS1 10 222J R Chip Resistance 1005 2 2K 5 2 R1 R227 2RS1 10 100J R Chip Resistance 1005 10Ω 5 5 R3 R2 R341 R71 R82 2RS1 10 472J R Chip Resistance 1005 4 7K 5 12 R74 R5 R39 R168 R181 R187 R283 R288 R289 R304 R91 R16 2RS1 10 331J R Chip Resistance 1005 330Ω 5 5 R14 R43 R100 R101 R55 2RS1 16 102J R Chip Resistance 1608 1K 5 3 R18 R19 R34 2RS1 10 204J R Chip Resistance 1005 200K 5 1 R69 2RS1 10 ...

Page 72: ... R306 R307 R309 R31 1 R313 R76 R344 R345 R346 R362 R374 R375 R377 R378 R257 2RS1 10 154J R Chip Resistance 1005 150K 5 7 R6 R166 R167 R218 R226 R11 R123 2RS1 10 223J R Chip Resistance 1005 22K 5 9 R383 R369 R368 R376 R109 R110 R194 R106 R 367 2RS1 16 222J R Chip Resistance 1608 2 2K 5 1 R32 2RS1 10 274J R Chip Resistance 1005 270K 5 6 R36 R42 R302 R316 R318 R141 2RS1 10 683J R Chip Resistance 1005...

Page 73: ...005 470K 5 4 R140 R303 R317 R319 2RS1 10 152J R Chip Resistance 1005 1 5K 5 2 R211 R57 2RS1 10 682J R Chip Resistance 1005 6 8K 5 5 R113 R94 R95 R314 R114 2RS1 10 392J R Chip Resistance 1005 3 9K 5 2 R152 R178 2RS1 10 332J R Chip Resistance 1005 3 3K 5 5 R142 R197 R124 R146 R183 2RS1 16 120J R Chip Resistance 1608 12Ω 5 1 R8 2RS1 16 100J R Chip Resistance 1608 10Ω 5 2 R30 R29 2RS1 16 431J R Chip R...

Page 74: ...0 224J R Chip Resistance 1005 220K 5 1 R310 2RS1 10 564J R Chip Resistance 1005 560K 5 1 R99 2RS1 16 681J R Chip Resistance 1608 680Ω 5 1 R58 2RS1 10 394J R Chip Resistance 1005 390K 5 1 R308 2RS1 10 562J R Chip Resistance 1005 5 6K 5 3 R361 R175 R13 2RS1 10 512J R Chip Resistance 1005 5 1K 5 3 R179 R200 R219 2RS1 10 822J R Chip Resistance 1005 8 2K 5 1 R184 2RS1 10 821J R Chip Resistance 1005 820...

Page 75: ...emperature Compensated Oscillator 12 8MHz 1 5ppm Vcont 1 5V 1 0Vˈ Range 20ppm 40ć 85 1 X1 1IS1 WM8758B CODEC Chip WM8758CB 32 Pin QPN Package 5 5 0 9MM leadfree 1 U6 1IS1 XC6204B332 MR Chip Voltage Regulator IC Voltage RegulatorIntegrated 3 3V SOT 23 5 150mA 1 IC8 1IS1 TC75S51F Chip Single Operational Amplifier IC TC75S51F SSOP5 P 0 95 1 U202 1IS1 XC6228D122V R Chip Specialized IC Power Supply IC ...

Page 76: ...34 Cores BL112 34RL Horizontal Low Contact With Lock 1 CN4 2LL1 16 8N2D multilayer inductor 1608 8 2nH 0 5nH MLG1608B8N2DT 2 L14 L15 2CC1 16 C0G500 2 70J R Chip Multilayer Capacitor 1608 27P 5 50V C0G 1 C32 2CC1 16 C0G500 1 80J R Chip Multilayer Capacitor 1608 18P 5 50V C0G 1 C34 2RS1 10 221J R Chip Resistance 1005 220Ω 5 2 R147ˈR148 2CC1 20 X7R250 1 05K Chip Multilayer Capacitor 2012 1μF 10 25V X...

Page 77: ...0SS3 4092 HMA FM540 Main Unit Assembling Material Module 1317 PCS 1 3CR7 S1943 B R Antenna Head SL16 50KF 03ˈCopper Plating Plug And Unplug Force 1 2 5KGF leadfree PCS 1 3WPD S7038 B R Power Supply Connector 2 5 Square Copper Core Red and Black Parallel Wires VL 2ATerminal SR Red Wire With Fuse Box L 300mm PCS 1 7MHF 1939 01A L0 R Mental Panel Material 1 2mm Electrolytic Panel Black Fuel Injection...

Page 78: ...th Odhesive black lleadfree PCS 1 7MHR 1939 04A W 2 R Aluminum Cover Up and Down Sealed Slice Material Flocking Single Sided With Odhesive black leadfree PCS 2 7MHR 1943 02A W 0 R Speaker Hole Plug Material SilconGel Black leadfree PCS 1 7MMC 1943 01A N R Power Module Sheilding Case SC Material Brass Nickel Materlead free PCS 1 7NRC 077107040 Z R Encoder Switch Nut Material Brass Inner Diameter M7...

Page 79: ...1MR3 RA30H1317 M E R Power Module RA30H1317M PCS 1 3WF7 05034 060C4 R Floppy Connecting Cable Spacing 0 5mm 34P Wire Length 60mm Head Length4mm Double Head Single Side Same Direct Contact Type PCS 1 7MBM S1943 B R Conductive Bubble Sponge Material Conductive Bubble Spongeˈ50 18 5 3ˈSingle Side With Adhesive leadfree PCS 1 4PC7 4090H A FM540 LCD Module Black and white screenˈZYWF151 leadfree PCS 1 ...

Page 80: ...free PCS 1 7MBP 4090 05A W 0 FM540 Up Key Mold 1 TransparentˈCold Grey Oil PrintedˈLaser Carving leadfree PCS 1 7MBP 4090 06A W 0 FM540 Down Key Mold 1 TransparentˈCold Grey Oil PrintedˈLaser Carving leadfree PCS 1 7MBP 4090 07A W 0 FM540 Back Key Mold 1 TransparentˈGreen Oil PrintedˈLaser Carving leadfree PCS 1 4SS7 3520 016 700 Speaker SC Φ 35 58mm H 20mm Resistance16Ω Rated Power 7W leadfree PC...

Page 81: ... 4PE3 3R0 Y25 A R Plug In Lighting Diode Φ3mm Two Color Red and Green GHZRG603D2 2C Con Positive њ 1 3CT3 PCB 8HKB R Plug In Hand Mic Socket RJ45ˈ8P Full Plastic leadfree PCS 1 2RW3 R09542NO F B12 5 R Volume Potentiometer R09542NO FB12 5A07 A103 015 PCS 1 Page 78 of 99 ...

Page 82: ...BLM21P300S Q39 2SA1641 C331 470uF 25V C341 47uF 25V C340 471 DC1 13 8V R292 1K Q41 KRC404RTK D35 02DZ18 X Y R291 470R C347 471 C348 471 R281 10D220 C346 4 7uF 10V C342 471 C343 471 C241 4 7uF 6 3V C242 471 C244 471 9 1 966 1 287 IC102XC6228D122VR IN GND OUT TA78033AF IC2 VIN 1 2 GND 3 OUT 4 GND L7808CV IC9 C154 4 7uF 6 3V C158 471 C236 471 9 1 966 1 287 IC8XC6204B332MR L66 BLM21P300S C237 4 7uF 6 ...

Page 83: ...VREF 97 AVCC 98 W N 99 MD 100 TGSW 101 102 IC19 M30620 1 9 9 287 9 IC202 PST9140NR R339 330K C260 104 R340 1K C30922P C344 22P C413 3P Q204 NC R341 10R L203 BLM11A601S 1 6 6 7 67 9 IC200 7 R344 10K R345 10K R346 10K L71 BLM11A601S C420 471 C421 471 L73 BLM11A601S C422 471 C423 471 L80 BLM11A601S C424 471 R359 0R R360 100K C425 223P C426 NC R361 5 6K R362 10K C427 102 C428 102 R363 47K R364 47K R36...

Page 84: ...R188 0R R206 0R C275 104 FB9 1 NC 2 IN_A 3 GND OUT 4 VCC 5 U8 MC74VH1GT04 R219 5K1 C281 104 TP R230 0R FB8 R246 NC C296 105 FB7 BLM15AG221SN1D C300 104 C302 104 C315 104 C377 104 C436 104 C437 104 C438 104 C439 104 C440 104 1 NC_1 2 GND 3 SCL SDA 4 NC_5 5 VCC 6 U4 NC OE OUT VSS VDD 4 1 3 2 Y3 12 288MHz C441 104 C442 NC R253 0R FB16 BLM15AG221SN1D FB17 BLM15AG221SN1D C446 NC R266 0R C448 NC C449 10...

Page 85: ...V305 R26 100R C83 104 C68 471 C71 471 L21 330nH C70 1P C69 1P D8 1SV278 R36 270K R42 270K R39 4 7K L23 BLM11A601S Q14 2SC4617 C148 471 R 10 74 K C149 15uF 6 3V C151 471 Q1 2SC5108 R6 150K 10 C5 2 7 R21 100R L8 39nH C6 33P C59 102 Q7 nc C80 3P R27 0R L13 0R C38 nc R9 nc R37 NC C88 NC C35 4P C53 0R C73 6P L20 15nH C72 6P C52 0R C13 102 R13 15K R33 22R Q2 2SC5108 R14 330R C49 102 R1 2 2K L7 82nH C50 ...

Page 86: ... B IN 7 BOUT 8 V IC4 NJM2904 D10 MA742 D9 MA742 10 C9 2 0 10 C9 2 1 R52 100K R53 100K R59 100K C119 471 R67 100K DA2S D15 10100L R64 27K R 10 60 0K R72 0R R80 100K R73 560K C136 47 2 1 R81 10K R87 1M C157 471 BLM11 L24 A601S BLM41P600 L26 SPT BLM L25 41P600SPT C28 100P C37 102 C55 103 C92 102 C9 10 7 0P C27 100P C36 102 C51 103 10 C9 2 9 10 C1 3 10 10 C1 3 21 C74 47uF 25V D7 HZU5ALL C66 47uF 25V C...

Page 87: ...DAN222 R 6 8K 94 R95 6 8K R 6 8K 113 R 6 8K 11 R109 22K 4 R11 22 0 K C172 104 C173 104 C217 182 R 10 12 0R 1 C232 33P R 47 14 0K 0 22 C2 0P 12 C221 220P Q22 DTC144EE R142 3 3K R145 0R R136 1K L62 0R C227 C224 C228 C234 82P R148 2 7K R152 3 9K Q23 DTA144EE CD1 C24450 C188 102 Q21 2SC4617 R108 330K R124 3 3K R135 56R 10 C2 4 13 C2 10 06 2 C187 104 D25 RB706F 40 10 C1 2 89 C181 334 C222 471 C370 102 ...

Page 88: ...18 270K R317 470K R316 270K C393 1uF 10V R320 0R C394 104 C395 471 1 NINV 2 GND1 3 RR 4 OUT1 5 GND2 6 OUT2 7 VP 8 M SS 9 INV IC7 TDA1519C C259 104 C271 104 C1 J1 SPK C269 1 2 CN2 L64 BLM21P300S C265 10uF C268 104 C2 47 74 1 R194 22K Q28 DTC144EE R201 1K C283 471 C277 R196 10K R205 10K R105 47K L65 BLM11A601S C392 471 1 AOUT 2 A IN 3 A IN 4 GND 5 B IN 6 B IN 7 BOUT 8 V IC302 NC C9 471 L301 NC C245 ...

Page 89: ...FM540Service Manul Figure 2 FM540 01 Top Layer Position Diagram 136 174MHz Page 86 of 99 ...

Page 90: ...FM540Service Manul Figure 3 FM540 01Bottom Layer Position Diagram 136 174MHz Page 87 of 99 ...

Page 91: ...0uF 25 C34 1 47uF 25 V C34 0 47 1 DC 1 13 8 V R29 2 1 K Q4 1 KRC404RTK D35 02DZ18 X Y R29 1 470 R C34 7 47 1 C348 471 R28 1 10D22 0 C34 2 47 1 C34 3 47 1 C24 1 4 7uF 6 3V C24 2 47 1 C24 4 47 1 VIN 1 VSS 2 CE 3 4 NC 5 OUT IC102 XC6228D122VR I N GN D OU T TA78033AF IC2 VIN 1 2 GND 3 OUT 4 GND L7808CV IC9 C15 4 4 7uF 6 3V C15 8 47 1 C23 6 47 1 VIN 1 VSS 2 CE 3 4 NC 5 OUT IC8 XC6204B332MR L6 6 BLM21P3...

Page 92: ...11A601 S 1 A0 2 A1 3 A2 4 GND SDA 5 SCL 6 TEST 7 VCC 8 IC20 0 AT24C512 C R34 4 10K R34 5 10K R34 6 10K L71 BLM11A601 S C42 0471 C42 1471 L73 BLM11A601 S C42 2471 C42 3471 L80 BLM11A601 S C42 4471 R35 9 0R R36 0 100K C42 5 223P C42 6 NC R36 1 5 6K R36 2 10K C42 7102 C42 8102 R36 3 47K R36 4 47K R36 5 47K R36 6 15K R36 7 22K C42 9 33nF C43 0 33nF R36 8 22K R36 9 22K R37 0 47K R37 1 47K R37 2 47K L81...

Page 93: ... 0R R206 0R C275 104 FB9 1 NC 2 IN_A 3 GND OUT 4 VCC 5 U8 MC74VH1GT04 R219 5K1 C281 104 TP R230 0R FB8 R246 NC C296 105 FB7 BLM15AG221SN1D C300 104 C302 104 C315 104 C377 104 C436 104 C437 104 C438 104 C439 104 C440 104 1 NC_1 2 GND 3 SCL SDA 4 NC_5 5 VCC 6 U4 NC O E O U T V S S V D D 4 1 3 2 Y3 12 288MHz C441 104 C442 NC R253 0R FB16 BLM15AG221SN1D FB17 BLM15AG221SN1D C446 NC R266 0R C448 NC C449...

Page 94: ...P L5 330nH R4 120R C4 0 5P C2 5P C41 6P L12 33nH D4 1SV305 D6 1SV305 R26 100R C83 104 C68 150 C71 150 L21 330nH C70 1P C69 1P D8 1SV278 R36 270K R42 270K R39 4 7K L23 BLM11A601S Q14 2SC4617 C148 471 R74 4 7K C149 15uF 6 3V C151 471 Q1 2SC5108 R6 150K C57 102 R21 100R L8 220R C6 33P C59 102 Q7 2SC5108 C80 10P R27 150K L13 18nH C38 471 R9 1K R37 22R C88 471 C35 3P C53 10P C73 5P L20 18nH C72 5P C52 ...

Page 95: ... B IN 6 A IN B IN 7 OUT A IN B 8 V IC4 NJM2904 D10 RB706F D9 RB706F C90 101 C91 101 R52 100K R53 100K R59100K C119 471 R67 47K D15 DA2S10100L R64 100K R60 100K R72 0R R80 100K R73 330K C136 2 7 4 1 R81 10K R87 1M C157 471 L24 BLM11A601S L26 BLM41P600SPT L25 BLM41P600SPT C28 22P C37 100P C55 471 C92 471 C97 22P C27 22P C36 100P C51 471 C99 101 C110 471 C121 103 C74 47uF 25V D7 HZU5ALL C66 47uF 25V ...

Page 96: ...K C212 471 C221 471 Q22 DTC144E R142 3 3K R145 0R R136 E 1K L62 0R C227 C224 C228 C234 82P R148 2 2K R152 3 9K Q23 DTA144EE CD1 C24450 C188 102 Q21 2SC4617 R108 330K R124 3 3K R135 56R C213 104 C206 102 C187 104 D25 RB706F 40 C189 102 C181 334 C222 471 C370 102 R177 180K R146 3 3K C231 102 Q16 NC R98 NC R96 NC D22 MA2S111 R93 NC C235 104 L61 BLM11A601S C226 4 7uF 10V C186 104 C191 1000P L59 BLM11A...

Page 97: ... 1K R319 470K R318 270K R317 470K R316 270K C393 1uF 10V R320 0R C394 104 C395 471 1 NINV 2 GND1 3 RR 4 OUT1 5 GND2 6 OUT2 7 VP 8 M SS 9 INV IC7 TDA1519C C259 104 C271 104 C1 J1 SPK C269 1 2 CN2 L64 BLM21P300S C265 10uF C268 104 C274 471 R194 22K Q28 DTC144EE R2011K C283 471 C277 R196 10K R205 10K R105 47K L65 BLM11A601S C392 471 1 AOUT 2 A IN 3 A IN 4 GND B IN 5 B IN 6 BOUT 7 V 8 IC302 NC C9 471 ...

Page 98: ...FM540Service Manul Figure 5 FM540 02 Mainboard Top Layer Position Diagram 400 470MHz Page 95 of 99 ...

Page 99: ...FM540Service Manul Figure 6 FM540 02 Mainboard Bottom Layer Position Diagram 400 470MHz Page 96 of 99 ...

Page 100: ...2 VOL_DET 23 GND 24 NC 25 SB 26 NC 27 PTT 28 ME 29 MIC 30 ME 31 HOOK 32 MD 33 GND 34 35 NC 36 NC CN1 CN34_FM540_KEYBOARD1 VR1 VR_PT8100 10K L1 0R R4 10R R5 10R R6 10R R7 10R R8 0R R9 3 3K R10 10K R11 20K R12 10K SW1 DOWN SW2 UP SW3 CANCEL SW4 OK R13 0R R14 3 3K R15 10K R16 20K R17 10K R18 10R D6 GREEN R19 10R D7 GREEN Q2 DTC144EE Q3 2SC4617 R20 220R R21 220R R22 220R R23 6 8K R24 6 8K C1 NC C4 NC ...

Page 101: ...FM540Service Manul Figure 8 FM540KEYTop Layer Position Diagram Page 98 of 99 ...

Page 102: ...FM540Service Manul Figure 9 FM540KEY Bottom Layer Position Diagram Page 99 of 99 ...

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