Samsung SGH-ZV30 Service Manual Download

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SGH-ZV30

UMTS TELEPHONE

CONTENTS

Specification

Circuit Description

Exploded Views and Parts List

Electrical Parts List

Block Diagrams

PCB Diagrams

Flow Chart of Troubleshooting

UMTS TELEPHONE

Summary of Contents for SGH-ZV30

Page 1: ...H ZV30 UMTS TELEPHONE CONTENTS 1 Specification 2 Circuit Description 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams 7 Flow Chart of Troubleshooting UMTS TELEPHONE ...

Page 2: ...Ltd September 2005 Printed in Korea Code No GH68 08450A BASIC This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ⓒ ...

Page 3: ...10562 10838 Tx Rx spacing 45MHz 95MHz 80MHz 190MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us 3 84Mcps Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Frame length 10ms Slot length 0 667ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK QPSK HQPSK MS Power 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm 24dBm 50dBm Power Class 4 max 33dBm 1 max 30dBm 1 ma...

Page 4: ...Bm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level GSM900 5 33 2 dBm 6 31 2 dBm 7 29 2 dBm 8 27 2 dBm 9 25 2 dBm 10 23 2 dBm 11 21 2 dBm 12 19 2 dBm 13 17 2 dBm 14 15 2 dBm 15 13 2 dBm 16 11 3 dBm 17 9 3dBm 18 7 3 dBm 19 5 3 dBm TX Power control level DCS1800 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 1...

Page 5: ...A Rx FILTER F201 For filtering the frequency band 2110 and 2170 MHz WCDMA Tx FILTER F202 For filtering the frequency band 1920 and 1980 MHz VCTCXO OSC201 To generate the 19 2MHz reference clock to drive the logic and RF Duplexer F204 A duplexer splits a single operating band into receive and transmit paths UMTS PAM U202 This is a key component in the transmitter chain and must complement the RTR62...

Page 6: ...her receive functions contained within the RFR6200 receiver IC to improve mixer LO to RF isolation a critical parameter in the Zero IF architecture RFR6200 U203 The RFR6200 provides the Zero IF receiver signal path from RF to analog baseband for UMTS 2100 applications The RFR6200 accepts its UMTS input signal from the handset RF front end design The UMTS input is configured differentially to optim...

Page 7: ... and commands use C_A2 1 signal If this signal is high Inputs to LCD are commands If it is low Inputs to LCD are data The signal which informs the input or output state to LCD is required But this system is not necessary this signal Power signals for LCD are VBATT and VREG_MSMP EAR1OP and EAR1ON are used for audio speaker And MOTOR_EN from U302 enables the motor Key This is consisted of key interf...

Page 8: ...table telephone 2 2 4 Memory The signals in the MSM6250 enable two memories They use two volt supply voltage VREG_MSME and VREG_MSMP from the PM6650 This system uses SEC s memory KBE00F005M F411 It is consisted of 1G bits flash NAND memory and 512M bits SDRAM memory It has 16 bit data line D1 0 15 which is connected to MSM6250 It has 22 bit address lines A 1 22 ROM_CS and RAM_CS signals is chip se...

Page 9: ...and Parts List 3 1 This Document can not be used without Samsung s authorization 3 1 Exploded View QFU01 QRF03 QVO01 QMI03 QIF01 QWD01 QLC01 QMO01 QAR01 QFL01 QMW01 QME03 QCA01 QFR01 QCK01 QCW04 QKP01 QFR02 QCR12 QME06 QMP01 QCR04 QRE02 QRF01 QRE01 QCR11 QBA01 QSC12 QCR16 ...

Page 10: ...QIF01 ㅤ PMO IF COVER V2 SGH ZV30 PC URETHANE GH72 25828A QKP01 ㅤ MEC KEYPAD VOD D_GRY SGH ZV30 VODAF GH75 06982A QLC01 ㅤ LCD SGHZV30 MODULE UF 17E101 A SGH Z GH07 00754A QME03 ㅤ UNIT FPCB SGH ZV30 KBSGHZV30KM OMN GH59 02284A QME06 ㅤ UNIT SPK MODULE SGH ZV30 SS SGH ZV30 GH59 02356A QMO01 ㅤ MOTOR DC SGHZV30 DMJBRK94B SGH ZV30 GH31 00177A QMP01 ㅤ PBA MAIN SGHZV30 SGH ZV30 VODAFONE G GH92 02152A QMW01...

Page 11: ...ON CASE LOWER VOD SGH Z105 PUL GH69 02177A BOX P MENUAL BOX UMTS SGH Z107V SI GH69 02540C CUSHION CASE UPPER SGH Z300 PULP T0 GH69 02837A BOX P SGHZV30 UMTS SGH ZV30 SC350 GH69 03235A IPR LOCKER SPRING SCH 750 STS304 T GH70 10633A PMO BATTERY LOCKER SGH ZV30 PC GRY GH72 24503A MPR BOHO VNYL CONN V2 SGH E316 950 GH74 11112A MPR BOHO VINYL TOP F U SGH ZV30 3M 4 GH74 14662A MPR BOHO VINYL F LOWER SGH...

Page 12: ... view and Part List 3 4 This Document can not be used without Samsung s authorization 3 3 Test Jig GH80 03308A 3 3 1 RF Test Cable GH39 00283A 3 3 2 Test Cable GH39 00337E 3 3 3 Serial Cable 3 3 4 Power Supply Cable 3 3 5 DATA CABLE GH39 00326A 3 3 6 TC GH44 00701A ...

Page 13: ...MIC CHIP 2203 000386 C151 C163 C229 C251 C CERAMIC CHIP 2203 000812 C152 C156 C157 C207 C CERAMIC CHIP 2203 005482 C155 C328 C329 C417 C CERAMIC CHIP 2203 006093 C158 C CERAMIC CHIP 2203 000311 C160 C457 C TA CHIP 2404 001274 C161 C FILM CHIP 2301 001515 C165 C CERAMIC CHIP 2203 005503 C166 C CERAMIC CHIP 2203 002443 C167 C221 C CERAMIC CHIP 2203 005234 C170 C201 C202 C209 C CERAMIC CHIP 2203 0002...

Page 14: ... C467 C472 C475 C CERAMIC CHIP 2203 006093 C434 C603 C604 C606 C CERAMIC CHIP 2203 000278 C441 C CERAMIC CHIP 2203 001153 C443 C444 C605 C683 C CERAMIC CHIP 2203 000812 C446 C449 C450 C451 C CERAMIC CHIP 2203 000438 C447 C448 C CERAMIC CHIP 2203 006208 C452 C453 C454 C466 C CERAMIC CHIP 2203 000438 C460 C461 C TA CHIP 2404 001281 C463 C502 C503 C TA CHIP 2404 001105 C464 C CERAMIC CHIP 2203 002494...

Page 15: ...001571 F201 FILTER SAW 2904 001439 F202 FILTER SAW 2904 001438 F203 RF MODULE 4709 001370 F204 FILTER 2910 000004 HEA501 CONNECTOR HEADER 3711 005643 L101 INDUCTOR SMD 2703 002201 L102 L121 L124 INDUCTOR SMD 2703 002155 L103 L106 L112 L119 INDUCTOR SMD 2703 002198 L104 L204 L213 INDUCTOR SMD 2703 002267 L105 INDUCTOR SMD 2703 002200 L108 L114 L115 L120 INDUCTOR SMD 2703 002819 L109 L111 L116 L118 ...

Page 16: ...307 R127 R128 R CHIP 2007 001301 R131 R CHIP 2007 000147 R132 R402 R CHIP 2007 007142 R135 R204 R207 R214 R CHIP 2007 000138 R201 R210 R212 R CHIP 2007 007314 R202 R CHIP 2007 000173 R205 R CHIP 2007 007318 R206 R CHIP 2007 007470 R208 R CHIP 2007 008263 R209 R314 R CHIP 2007 000137 R213 R CHIP 2007 000163 R215 R405 R CHIP 2007 001298 R216 R221 R313 R325 R CHIP 2007 000140 R218 R411 R503 R504 R CH...

Page 17: ...002645 U105 IC 1201 002174 U106 IC 1205 002724 U201 IC 1201 001984 U202 AWT6252M7P8 1201 002196 U203 IC 1205 002297 U204 TR DIGITAL 0504 001060 U301 KBE00F005M F411 1108 000005 U302 IC 1205 002527 U401 IC 1203 003335 U402 DIODE ARRAY 0407 001038 U403 RF MODULE 4709 001352 U407 DIODE TVS 0406 001200 U408 BATTERY 4302 001177 U409 IC 1203 002785 U411 AAT4280 3 1205 002767 U413 IC 1001 001248 U414 IC ...

Page 18: ...can not be used without Samsung s authorization Design LOC Description SEC CODE ZD408 DIODE ZENER 0403 001387 ZD501 DIODE TVS 0406 001215 ZD504 ZD505 ZD506 DIODE TVS 0406 001201 ZD507 ZD508 ZD509 DIODE TVS 0406 001201 ZD602 ZD603 ZD604 DIODE TVS 0406 001201 ZD605 ZD606 ZD607 DIODE TVS 0406 001201 ...

Page 19: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 5 Block Diagrams 5 1 5 1 RF Solution Block Diagram ...

Page 20: ...SAMSUNG Proprietary Contents may change without notice Block Diagrams This Document can not be used without Samsung s authorization 5 2 5 2 Base Band Solution Block Diagram ...

Page 21: ...SAMSUNG Proprietary Contents may change without notice 6 PCB Diagrams 6 1 This Document can not be used without Samsung s authorization 6 1 PCB Top Diagram ...

Page 22: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 2 This Document can not be used without Samsung s authorization 6 2 PCB Bottom Diagram ...

Page 23: ...on circuit related to OSC201 Check for the clock at C407 19 2MHz Yes No Check the PMIC C415 VREG_MSME 1 8V C421 VREG_MSMP 2 6V C423 VREG_MSMA 2 6V C433 VREG_TCXO 2 85V Yes No Check the PMIC C413 VREG_MSMC 1 375V Yes No Resolder XTAL401 Check the Clock at XTAL401 32 768KHZ Yes No Check the PMIC related to PS_HOLD U401 pin57 PS_HOLD 2 6V Yes No END Change the Battery Power On does not work Check the...

Page 24: ...1 77 VDD_SPKR USB_D_P 18 USB_ID 11 USB_OE_N 13 USB_SE0 19 16 USB_VBUS 48 VBACKUP 6 VBAT 2 VCHG 60 VCOIN VDD_ANA 54 SPKR_IN_M 76 SPKR_IN_P SPKR_OUT_M 79 75 SPKR_OUT_P 55 TCXO_EN 58 TCXO_IN TCXO_OUT 53 15 USB_CTL_N 17 USB_DAT 20 USB_D_M 26 34 RUIM_M_CLK 30 RUIM_M_IO 40 RUIM_M_RST 43 RUIM_RST SBCK 49 47 SBDT 51 SBST 45 SLEEP_CLK 74 SPKR_BYP 78 NC NC 87 PON_RESET_N 9 57 PS_HOLD 63 REF_BYP 62 REF_GND 6...

Page 25: ...otice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 3 7 2 Initial Check the LCD RESET Circuit No Yes Yes CN505 pin 37 38 LCD RESET is H Level Yes No END Check the PMIC Initial Failure RESET_N TP337 IS H ...

Page 26: ...TP329 R308 WDOG_EN_1 AE17 AF17 WDOG_EN_2 A18 TCXO L19 RINGER F14 RESIN_N RESOUT_N F12 MODE1_1 AA25 MODE1_2 AA26 MODE2_1 U25 U26 MODE_2 MODE0 Y23 AE21 BOOT_MODE_1 AF21 BOOT_MODE_2 A1_3 M8 M4 A1_4 N11 A1_5 N8 A1_6 A1_7 N6 N2 A1_8 N1 A1_9 L4 A1_2 A1 11 P2 A1_1 L1 P1 A1_10 P6 A1_12 TP337 VREG_MSMP TP303 R309 RESET_N W_DOG TMODE1 TMODE0 CAM_EN1 RESOUT2_N TMODE2 ...

Page 27: ... 34 34 35 35 36 36 37 37 38 38 39 39 4 4 26 26 27 27 28 28 29 29 3 3 30 30 31 31 32 32 19 19 2 2 20 20 21 21 22 22 23 23 24 24 25 25 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 CN505 1 1 10 10 C510 13 OUT 12 OUT OUT 11 10 OUT OUT 9 4 IN 5 IN IN 6 7 IN IN 8 OUT 16 15 OUT OUT 14 U506 17 GND IN 1 2 IN IN 3 MEGA_1 8 U514 FLASH_ON LCD_HALL_SW C_WE2_N C_WE2_N WE2_N C_SUB_LCD_RESETB C_SUB_LCD_CSB C_A...

Page 28: ... Troubleshooting 7 6 7 3 SIM Part Yes After SIM card insert CN401 pin 2 H USIM_RST Replace PBA No Yes After Power ON Check SIM_CLK Signal on CN401 pin3 in a few second It is 3 84MHz Check the 32 768KHz OSC XTAL 401 19 2Mhz OSC201 No Yes Yes Yes No END Check the SIM Card Check the SIM POWER Phone can t access SIM Card CN401 pin 1 H ...

Page 29: ... RUIM_M_IO 40 RUIM_M_RST KPDPWR_N 24 KPD_DRV_N LCD_DRV_N MSM_INT_N 59 86 NC NC 87 PON_RESET_N 9 57 72 AMUX_IN2 82 AMUX_OUT 68 CBL0PWR_N CBL1PWR_N 66 FLSH_DRV_N 85 GND GP1_DRV_N R440 C411 1 2 D401 3 C442 100NF GG 10 G 11 12 G 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 R439 CN401 PC D8 A3 H2 4 S 1 R408 C443 1 3 2 Q403 TP402 R412 R413 Q404 1 3 2 C440 390 R410 C441 R409 C410 VREG_USIM C444 R411 C439 5 NC SIM 34 ...

Page 30: ...s Yes Change the Speaker Yes No Is Speaker working No Yes Check the circuit related to SPOUT1 SPOUT2 signal U603 pin 14 23 Battery Volt No Yes Resolder U302 U603 pin 3 2 6V When U302 operate Resolder or replace U602 No Yes No END Check the clock generation circuit related to U401 and U603 Check the Clock signal at Pin 2 of U603 19 2MHz Speaker does not work U603 pin28 29 3 0V ...

Page 31: ... VSS 7 _CS 47 _IRQ 35 _RD 1 _RST 3 48 _WR 23 SPVDD R 13 SPVSS L 24 SPVSS R TESTI 4 VDD 6 VDD 28 VREF 8 VSS 44 PIO1 33 PIO2 32 PLLC 5 SPOUT1 L 11 SPOUT1 R 26 SPOUT2 L 10 SPOUT2 R 27 14 SPVDD L LED 31 MTR 30 NC 9 NC 12 NC 25 50 NC 51 NC PIO0 34 21 EQ2 R 15 EQ3 L 22 EQ3 R GND 49 18 HPOUT L MONO 19 HPOUT R IOVDD 45 IOVDD 29 D3 40 D4 39 D5 38 D6 37 D7 36 17 EQ1 L 20 EQ1 R 16 EQ2 L U603 A0 46 CLKI 2 D0 ...

Page 32: ...g s authorization Flow Chart of Troubleshooting 7 10 7 5 Microphone Part Microphone does not work Replace the MIC Check the MIC No Yes Yes Yes Yes No END Resolder the R607 R608 R631 R632 R633 R634 C614 C615 C621 and C622 Resolder MIC Check the circuit from U302 to MIC Check the connection from MIC No ...

Page 33: ...s Document can not be used without Samsung s authorization 7 11 Microphone C684 R634 R633 C621 R632 C610 C616 C614 C693 C617 C687 C685 C624 R611 C686 C612 C694 C615 C622 C623 R608 MICBIAS C688 R612 R631 C682 MICBIAS C683 R607 C618 EARMIC_P MIC2P MIC2N MICP_CON MICN_CON MIC1P MIC1N EARMIC_N ...

Page 34: ...ed without Samsung s authorization Flow Chart of Troubleshooting 7 12 7 6 Key Data Input Yes No Replace the PBA When one of the keys is pushed KEY_IO signal is OK Check Initial Operation Yes Yes No END Check the Dome sheet Key Pad When one of the keys is pushed is it displayed on LCD ...

Page 35: ...t of Troubleshooting This Document can not be used without Samsung s authorization 7 13 7 7 Receiver Part Receiver does not work Check the soldering of the speaker wire Yes Modify the speaker wire soldering No Yes No Replace the Receiver Is Receiver working Yes END ...

Page 36: ...for Color Main LCD Replace the LCD Module Yes Yes No Replace or Resolder L501 L501 3 3V Backlight does not work Yes Yes No END Set BACKLIGHT on AlwaysON Is BACKLIGHT set AlwaysON in the Menu VBATT C511 ZD504 MEGA_2 5 L501 8 8 9 9 6 6 7 7 5 5 4 4 3 3 19 19 2 2 20 20 21 21 22 22 23 23 24 24 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 CN505 1 1 10 10 C510 EAR1OP_CON ...

Page 37: ...hooting This Document can not be used without Samsung s authorization 7 15 7 9 Key Back Light Yes Replace The PBA Module No HEA501 pin 20 Voltage 3 05 Key Backlight does not work Yes Yes No END Set BACKLIGHT on AlwaysON Is BACKLIGHT set AlwaysON in the Menu Replace Key_FPCB Yes ...

Page 38: ... Chart of Troubleshooting 7 16 7 10 Camera part Yes Replace the camera module END Is there another problem Yes Replace U302 No U513 pin7 24MHz Yes Check the voltage of U401 U502 No CN505 pin28 1 8V CN505 pin27 2 6V Yes Check the Camera connector on LCD module Connect the camera module No Yes Camera function does not work ...

Page 39: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 17 U513 CAM_MCLK CAM_RESETB I2C_SDA CAM_VSYNC ...

Page 40: ...ument can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 18 7 11 GSM Receiver RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No Resolder U106 ASM C118 60dBm Yes L103 65dBm Resolder F100 GSM SAW No Yes Resolder U104 RTR6250 Yes END ...

Page 41: ...can not be used without Samsung s authorization 7 19 7 12 GSM Transmitter Yes Check U302 MSM6250 END No No No No Yes Yes Yes Yes Resolder U106 ASM Resolder U105 PAM U106 ASM pin22 23dBm U105 PAM pin6 26dBm OSC101 TXVCO pin1 2dBm Resolder OSC101 TXVCO TX ON 5 Level Resolder U105 PAM U105 PAM Pin45 1V ...

Page 42: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 20 ...

Page 43: ...rt of Troubleshooting This Document can not be used without Samsung s authorization 7 21 7 13 DCS Receiver No Yes Yes Yes Resolder U104 RTR6250 L109 65dBm Resolder F101 DCS SAW RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No END Resolder U106 ASM C125 60dBm ...

Page 44: ...g s authorization Flow Chart of Troubleshooting 7 22 7 14 DCS Transmitter Yes Check U302 MSM6250 END No No No No Yes Yes Yes Yes Resolder U106 ASM Resolder U105 PAM U106 ASM pin22 20dBm U105 PAM pin31 23dBm OSC101 TXVCO pin5 2dBm Resolder OSC101 TXVCO TX ON 0 Level Resolder U105 PAM U105 PAM Pin45 1V ...

Page 45: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 23 ...

Page 46: ...ument can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 24 7 15 PCS Receiver No Yes Yes Yes Resolder U104 RTR6250 L116 65dBm Resolder F102 PCS SAW RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No END Resolder U106 ASM C133 60dBm ...

Page 47: ...can not be used without Samsung s authorization 7 25 7 16 PCS Transmitter Yes Check U302 MSM6250 END No No No No Yes Yes Yes Yes Resolder U106 ASM Resolder U105 PAM U106 ASM pin22 20dBm U105 PAM pin31 23dBm OSC101 TXVCO pin5 2dBm Resolder OSC101 TXVCO TX ON 0 Level Resolder U105 PAM U105 PAM Pin45 1V ...

Page 48: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 26 ...

Page 49: ...ot be used without Samsung s authorization 7 27 7 17 WCDMA Receiver Yes Resolder U203 RFR6250 END Resolder F201 WRX SAW No Yes C236 60dBm Check Resolder U201 RFL6200 No Resolder F204 DPLX No Yes Yes C210 55dBm C214 65dBm Yes No Check Resolder U106 ASM C208 60dBm Yes RX ON RF input CH center freq Amp 50dBm ...

Page 50: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 28 ...

Page 51: ...e used without Samsung s authorization 7 29 7 18 WCDMA Transmitter Yes No Check Resolder U106 ASM C101 19dBm Yes Check Resolder U104 RTR6250 No Resolder F204 DPLX END No No No Yes Yes Yes Yes C208 19dBm Check Resolder U202 WPAM Resolder F202 WTX SAW U202 WPAM pin8 20dBm C211 7dBm C212 7Bm TX ON PDM for 23dBm ...

Page 52: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 30 ...

Page 53: ... 42 TX_VCO_FB 53 UMTS1900_OUT 51 UMTS2100_OUT 55 UMTS800_OUT 49 VCONTROL 9 VCO_TUNE 4 R_BIAS 44 SBCK 45 SBDT 46 SBST 6 TCXO 19 TX_IN 18 TX_IP 40 TX_MOD_CP 17 NC1 59 NC2 47 RF_ON 14 RX_IN 13 RX_IP 12 RX_QN 11 RX_QP 32 RX_VCO_IN 33 GSM1800_INN 35 GSM1800_INP 24 GSM1900_INN 25 GSM1900_INP 21 GSM850_INN 22 GSM850_INP 38 GSM900_INN 37 GSM900_INP 58 CP1 30 CP2 1 CP_HOLD1 29 CP_HOLD2 20 DAC_REF 3 FAQ1 28...

Page 54: ... GND3 5 7 GND4 9 GND5 GND6 11 GND7 13 GND8 22 GND9 32 2 DNC1 10 DNC2 DNC3 12 21 DNC4 DNC5 36 DNC6 37 DNC7 40 GND1 1 GND10 35 GND11 41 42 L203 U203 C212 C249 VBATT C248 1 8PF C260 C202 C252 IN 5 OUT 2 1 G1 G2 34 G3 G4 6 L202 F203 L210 1K R221 C243 VREG_SYNT VREG_RFTX G G 2 OUT 1 SW 3 5 VC 7 VCC VREG_TCXO OSC202 MQL302A1G71 8 G 6 G 4 C254 220PF C251 33PF GND2 IN 1 OUT 2 L201 DG50LE0 F202 3 GND1 4 8 ...

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