Samsung SGH-N188 Service Manual Download

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ELECTRONICS

SERVICE

DUAL BAND Mobile
Cellular Phone

SGH-N188

ABC

DEF

JKL

GHI

MNO

TUV

PQRS

WXYZ

Manual

DUAL BAND Mobile Cellular Phone

CONTENTS

1. Exploded Views and Parts List

2. PCB Diagrams

3. Electrical Parts List

4. Block Diagrams

5. Flow chart of trouble shooting

Summary of Contents for SGH-N188

Page 1: ...llular Phone SGH N188 2ABC 1 3 DEF C 5 JKL 4GHI 6MNO 8TUV 7PQRS 9WXYZ 0 Manual DUAL BAND Mobile Cellular Phone CONTENTS 1 Exploded Views and Parts List 2 PCB Diagrams 3 Electrical Parts List 4 Block Diagrams 5 Flow chart of trouble shooting ...

Page 2: ...Samsung Electronics Co Ltd Printed in Korea 09 2000 Rev 1 0 GH68 01480A ELECTRONICS ...

Page 3: ... PCB Diagrams 2 1 Main Top 2 2 Main Bottom 3 Electrical Parts List 3 1 Main Parts List 3 2 Main Parts List Bottom 3 3 Main Parts List Top 4 Block Diagrams 4 1 Main Base Band 4 2 Main RF 5 Flow chart of trouble shooting 5 1 Power ON 5 2 Initial 5 3 Charging Part 5 4 Sim Part 5 5 Microphone Part 5 6 Speaker Part 5 7 Key Data Input 5 8 Alert tone 5 9 Ring Indicator 5 10 Back Light 5 11 GSM Receiver 5...

Page 4: ...Exploded Views and Parts List 1 1 1 Exploded Views and Parts List 1 1 Main 1 3 2 1 3 2 1 3 3 1 3 1 1 3 1 3 4 1 3 5 4 7 9 5 6 8 10 11 13 15 17 16 14 12 1 2 13 1 13 2 13 3 13 4 13 5 1 1 1 7 1 6 1 5 1 4 ...

Page 5: ...1 LCD WINDOW 1 6 GH72 01532A 1 WINDOW SPONGE 1 7 GH74 00684A 1 2 SIDE KEY ASS Y GH75 00672A 1 3 SPEAKER UNIT GH96 000908A 1 4 MIC HOLDER GH73 00145A 1 5 3X4 KEY ASS Y GH75 00686A DARK GRAY 1 6 LCD ASS Y GH96 00937A 1 7 LCD BRACKET ASS Y GH75 00429A 1 8 KEY PAD GH59 00171A 1 9 PBA GH92 00961A 1 10 I F CONNECTOR COVER GH73 00549A GRAY BLACK 1 GH73 00549B LIGHT GRAY 1 GH73 00549C DARK GRAY 1 11 VIBRA...

Page 6: ...LACK 1 GH72 01533F LIGHT GRAY 1 GH72 01533G DARK GRAY 1 14 ANTENNA GH42 00058E GRAY BLACK 1 GH42 00058A DARK GRAY 1 15 SCREW 6001 001346 5 16 LABEL MAIN GH68 01629A 1 TEC OTHER GH68 01629B 1 BRI 17 BATTERY STANDARD GH43 00285A GRAY BLACK 1 GH43 00285B LIGHT GRAY 1 GH43 00285C DARK GRAY 1 N0 PARTS NAME NO SEC CODE COLOR Q TY REMARK ...

Page 7: ...ploded Views and Parts List 1 3 Travel Adapter 1 4 Travel Adapter Parts List TYPE SEC CODE REMARK A GH44 00119C CHINA B GH44 00119A EUROPE C GH44 00119B UNITED KINGDOM D Gh44 00119D AUSTRALIA 1 4 A B C D ...

Page 8: ...Exploded Views and Parts List 1 5 Ciger Light Adapter 1 5 1 6 Ciger Light Adapter Parts List DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44 00040A BLACK ...

Page 9: ... Views and Parts List 1 6 1 7 Hands Free Kit SEC CODE GH96 00941A Red Battery Antenna Phone Bracket Bracket Speaker CAL S W Microphone Hands Free Box Black GND Orange ignition White Stereo Mute Test Jig Cradle ...

Page 10: ...1 7 Exploded Views and Parts List 1 8 Test Zig TEST JIG GH80 10508A TEST JIG CABLE GH39 30532A ...

Page 11: ...1 8 Exploded Views and Parts List 1 9 Earphone EARPHONE GH96 00830A 1 10 Data Kit DATA KIT GH39 30533A ...

Page 12: ...Exploded Views and Parts List 1 9 1 11 Desk Top Charger DESK TOP CHARGER GH44 00163B ...

Page 13: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...

Page 14: ...PCB Diagrams 2 2 Main Bottom 2 2 ...

Page 15: ...P 200mW 2 2KohmÓ U412 0504 001058 ÒTR DIGITAL RN4985 NPN PNP 200mW 2 2KohmÓ 19 Q401 0505 001332 ÒFET SILICON FDG6301 N 25V 0 22A 4OHM 3WÓ 20 ÒQ101 Q402Ó 0505 001423 ÒFET SILICON FDG6323L N P 0 3W SC70 6Ó 21 U309 0506 001004 ÒTR ARRAY UMC5N NPN PNP 2 50V 100mA 3Ó 22 D300 0601 000276 ÒLED CHIP Y GRN 1 6x2 0mm 570nmÓ 23 U452 0801 002540 ÒIC CMOS LOGIC 7SZ19 DECODER SOP 6P 49MIL SINGLE TPÓ 24 ÒU413 U4...

Page 16: ...005Ó 51 ÒR220 R224 R305 R327Ó 2007 000143 ÒR CHIP 4 7Kohm 5 1 16W DA TP 1005Ó 52 ÒR101 R109 R128 R238Ó 2007 000148 ÒR CHIP 10Kohm 5 1 16W DA TP 1005Ó ÒR240 R241 R303 R312Ó 2007 000148 ÒR CHIP 10Kohm 5 1 16W DA TP 1005Ó ÒR313 R315 R348 R420Ó 2007 000148 ÒR CHIP 10Kohm 5 1 16W DA TP 1005Ó ÒR424 R427 R430 R435Ó 2007 000148 ÒR CHIP 10Kohm 5 1 16W DA TP 1005Ó ÒR438 R450 R461 R526Ó 2007 000148 ÒR CHIP 1...

Page 17: ...R CHIP 18Kohm 1 1 16W DA TP 1005Ó 82 R226 2007 007139 ÒR CHIP 47Kohm 1 1 16W DA TP 1005Ó 83 R233 2007 007141 ÒR CHIP 240OHM 5 1 16W DA TP 1005Ó 84 ÒR227 R229 R418Ó 2007 007142 ÒR CHIP 10Kohm 1 1 16W DA TP 1005Ó 85 R563 2007 007309 ÒR CHIP 12Kohm 1 1 16W DA TP 1005Ó 86 R228 2007 007311 ÒR CHIP 22Kohm 1 1 16W DA TP 1005Ó 87 ÒR452 R453 R454 R455Ó 2007 007317 ÒR CHIP 2 2Kohm 1 1 16W DA TP 1005Ó 88 ÒR4...

Page 18: ... ÒC540 C555 C556 C557Ó 2203 000679 ÒC CERAMIC CHIP 0 027nF 5 50V NP0 TP 1005Ó ÒC559 C560 C561 C562Ó 2203 000679 ÒC CERAMIC CHIP 0 027nF 5 50V NP0 TP 1005Ó ÒC563 C565 C568 C569Ó 2203 000679 ÒC CERAMIC CHIP 0 027nF 5 50V NP0 TP 1005Ó ÒC570 C571 C572 C573Ó 2203 000679 ÒC CERAMIC CHIP 0 027nF 5 50V NP0 TP 1005Ó ÒC576 C577 C578 C579Ó 2203 000679 ÒC CERAMIC CHIP 0 027nF 5 50V NP0 TP 1005Ó 108 ÒC256 C257...

Page 19: ...ÒC CERAMIC CHIP 0 0012nF 0 25pF 50V NP0 TP 1005Ó 130 ÒC213 C224 C225Ó 2203 005446 ÒC CERAMIC CHIP 0 0027nF 0 1pF 50V NP0 TP 1005Ó 131 ÒC456 C457Ó 2203 005503 ÒC CERAMIC CHIP 0 18nF 5 25V NP0 TP 1005Ó 132 C416 2203 005509 ÒC CERAMIC CHIP 330nF 80 20 10V Y5V TP 1005Ó 133 C529 2203 005562 ÒC CERAMIC CHIP 10000nF 80 20 10V Y5V TP 3216Ó 134 ÒC250 C252Ó 2203 005707 ÒC CERAMIC CHIP 0 091nF 5 50V NP0 TP 1...

Page 20: ...168 U107 2806 001224 ÒOSCILLATOR VCO ENFVF1B2SF7 1167 5 1615MHz Ó 169 U200 2806 001239 ÒOSCILLATOR VCO VOF1748C28KRF 1748MHz 50ohmÓ 170 U100 2809 001237 ÒOSCILLATOR VCTCXO TCO 9131B 13MHz 5ppmÓ 171 ÒE200 E201 E202Ó 2901 001116 ÒFILTER EMI SMD NFM2012R13C471R 50V 0 3A 470pFÓ 172 F201 2904 001226 FILTER SAW B4121 173 F200 2904 001227 FILTER SAW B4833 174 F202 2904 001228 FILTER SAW B4133 175 F203 29...

Page 21: ... TP 2012 ECHU1C152JB5 19 C120 2203 002525 C CHIP 560pF 10 50V TP 1005 GRM36X7R561K50PT 20 C121 2203 000995 C CHIP 47pF 10 50V TP 1005 GRM36COG470C50PT 21 C123 2203 000254 C CHIP 10nF 10 16V TP 1005 GRM36X7R103K25PT 22 C124 2404 001105 CAP TANTAL 10uF 20 6 3V 2012 TESVSPOJ106M8R 23 C125 2203 005065 C CHIP 1uF 80 20 10V TP 1608 GRM39Y5V105Z10PT 24 C126 2203 000438 C CHIP 1nF 10 50V TP 1005 GRM36X7R1...

Page 22: ...8R 60 C319 2203 000254 C CHIP 10nF 10 16V TP 1005 GRM36X7R103K25PT 61 C323 2203 005065 C CHIP 1uF 80 20 10V TP 1608 GRM39Y5V105Z10PT 62 C324 2404 001105 CAP TANTAL 10uF 20 6 3V 2012 TESVSPOJ106M8R 63 C326 2203 000254 C CHIP 10nF 10 16V TP 1005 GRM36X7R103K25PT 64 C327 2203 000812 C CHIP 33pF 5 50V TP 1005 GRM36COG330J50PT 65 C328 2404 001105 CAP TANTAL 10uF 20 6 3V 2012 TESVSPOJ106M8R 66 C329 2203...

Page 23: ...16 FILTER EMI 50V 300mA 470pF 2x1 25x0 5 NFM39R12C471T1M 103 L100 2703 001791 Inductor 15nH 5 1 8x1 12x1 02mm 0603CS 15NXJBC 104 L300 2703 002052 Inductor 1 5mH BDS 3516 152M 105 L403 2703 001166 Inductor 5 6nH 5 1608 ELJRE5N6JF2 106 Q100 0501 000225 TR SMALL SIGNAL NPN 200mW EM3 TP 2SC4617R 107 Q101 0505 001423 FET SILICON FDG6323L N P 0 3W SC70 6 FDG6323L 108 Q300 0501 002011 TR SMALL SIGNAL NPN...

Page 24: ...TP 1005 ERJ2GEJ102X 144 R311 2007 007771 R CHIP 0ohm 5 1 16W DA TP 1005 RC1005J000CS 145 R313 2007 000148 R CHIP 10Kohm 5 1 16W DA TP 1005 RC1005J103CS 146 R315 2007 000148 R CHIP 10Kohm 5 1 16W DA TP 1005 RC1005J103CS 147 R316 2007 000162 R CHIP 100Kohm 5 1 16W DA TP 1005 RC1005J104CS 148 R319 2007 007771 R CHIP 0ohm 5 1 16W DA TP 1005 RC1005J000CS 149 R320 2011 001344 R NETWORK 100ohm 5 1 16W L ...

Page 25: ...03 1203 001204 IC VOLTAGE REGULATOR SOT 23 5P 59MIL LP2981AIM5X 3 3 176 U305 1003 001226 IC POWER DRIVER SOP 8P 120MIL SINGLE D361A 177 U306 1203 001454 IC VOLTAGE REGULATOR SOT 23 5P 59MIL LP2981AIM5X 3 0 178 U307 1203 001511 IC RESET 809 SOT 23 3P PLASTIC 0 3 6 MAX809REUR T 179 U308 1203 001454 IC VOLTAGE REGULATOR SOT 23 5P 59MIL LP2981AIM5X 3 0 180 U309 0506 001004 TR ARRAY NPN PNP 2 50V 300mW...

Page 26: ...IP 390pF 10 50V TP 1005 GRM36COG301J50PT 20 C219 2203 001239 C CHIP 82pF 10 50V TP 1005 GRM36C0G820J50PT 21 C220 2404 001017 CAP TANTAL 1uF 20 10V GP TP 2012 TAJR105M010R 22 C221 2203 000438 C CHIP 1nF 10 50V TP 1005 GRM36X7R102K50PT 23 C222 2203 000233 C CHIP 100pF 5 50V TP 1005 GRM36COG101J50PT 24 C223 2203 000233 C CHIP 100pF 5 50V TP 1005 GRM36COG101J50PT 25 C224 2203 005446 C CHIP 2 7pF 0 25p...

Page 27: ...66 2203 000812 C CHIP 33pF 5 50V TP 1005 GRM36COG330J50PT 61 C267 2203 000679 C CHIP 27pF 5 50V TP 1005 GRM36COG270J50PT 62 C268 2203 000278 C CHIP 10pF 5 50V TP 1005 GRM36COG050C50PT 63 C269 2203 000679 C CHIP 27pF 5 50V TP 1005 GRM36COG270J50PT 64 C270 2203 000438 C CHIP 1nF 10 50V TP 1005 GRM36X7R102K50PT 65 C317 2203 005061 C CHIP 100nF 80 20 16V TP 1005 GRM36Y5V104Z16PT 66 C325 2203 000254 C ...

Page 28: ...162 Capacitor 47uF 20 4V LZ TP 3216 F950G476MAAJZTQ2 103 C448 2203 000812 C CHIP 33pF 5 50V TP 1005 GRM36COG330J50PT 104 C449 2203 000254 C CHIP 10nF 10 16V TP 1005 GRM36X7R103K25PT 105 C450 2203 000800 C CHIP 33nF 10 16V TP 1608 GRM39X7R333K16PT 106 C451 2203 000800 C CHIP 33nF 10 16V TP 1608 GRM39X7R333K16PT 107 C452 2203 000233 C CHIP 100pF 5 50V TP 1005 GRM36COG101J50PT 108 C453 2203 000233 C ...

Page 29: ...02 DIODE ARRAY 80V 300mA CA2 3 EM3 DAN222 145 D431 0402 001329 DIODE RECTIFIER STPS140Z 40 1A SOD 123 TP STPS140Z 146 D406 0406 001083 ESD DIODE ESDA6V1W5 147 D407 0406 001104 ESD DIODE ESDA6V1 5W6 148 D408 0406 001104 ESD DIODE ESDA6V1 5W6 149 D410 0402 001331 DIODE RECTIFIER CRS04 40V 1A S FLAT TP CRS04 TE85L 150 D413 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 6mm TP VC040205X150 151 D414 1405 001082...

Page 30: ...15nH 5 1005 HK1005 15NJ T 187 L218 2703 001723 Inductor 33nH 5 1005 HK1005 33NJ T 188 L219 2703 001723 Inductor 33nH 5 1005 HK1005 33NJ T 189 L220 2703 001723 Inductor 33nH 5 1005 HK1005 33NJ T 190 L400 2703 001740 Inductor 10uH 20 6 6x4 45x2 8 BDS 4020R 100M 191 L401 2703 002025 Inductor 47uH 20 BTC 0309 470 192 L402 2703 001409 Inductor 12nH 10 1005 HK1005 12NK T 193 L404 2703 001752 Inductor 39...

Page 31: ...1005 TSR16GJ620V 228 R233 2007 007141 R CHIP 240ohm 5 1 16W DA TP 1005 ERJ2GEJ241X 229 R234 2007 001301 R CHIP 68ohm 5 1 16W DA TP 1005 ERJ2GEJ680 230 R235 2007 001306 R CHIP 150ohm 5 1 16W DA TP 1005 ERJ2GEJ151X 231 R236 2007 001305 R CHIP 120ohm 1005 ERJ2GEJ121X 232 R238 2007 000148 R CHIP 10Kohm 5 1 16W DA TP 1005 RC1005J103CS 233 R240 2007 000148 R CHIP 10Kohm 5 1 16W DA TP 1005 RC1005J103CS 2...

Page 32: ...70 R446 2007 002796 R CHIP 510ohm 5 1 16W DA TP 1005 ERJ2GEJ511X 271 R447 2007 000139 R CHIP 220ohm 5 1 16W DA TP 1005 ERJ2GE221X 272 R449 2011 001345 R NETWORK 10Kohm 5 1 16W L CHIP 8P TP EXB28V103JX 273 R450 2007 000148 R CHIP 10Kohm 5 1 16W DA TP 1005 RC1005J103CS 274 R452 2007 007317 R CHIP 2 2Kohm 1 1 16W DA TP 1005 RK73H1ETP2201F 275 R453 2007 007317 R CHIP 2 2Kohm 1 1 16W DA TP 1005 RK73H1E...

Page 33: ... 1 SHS L090D 307 U209 0504 001012 TR DIGITAL NPN 150mW 10K 47Kohm EMT DTC114YETL 308 U304 1103 001184 24C256 32Kx8Bit dBGA 8P 92MIL 2 7V TR AT24C256 10UI 2 7 T R 309 U400 0504 001012 TR DIGITAL NPN 150mW 10K 47Kohm EMT DTC114YETL 310 U401 1202 001022 IC VOLFAGECOMP 8P DUAL 36V CMOS TC75W56FU 311 U409 0504 000168 TR DIGITAL NPN 100mW 47K 47Kohm SSM DTC144EEA 312 U410 1203 001702 IC DC DC CONVERTER ...

Page 34: ...41 R219 N C POINT 342 R237 N C POINT 343 R436 N C POINT 344 R448 N C POINT 345 L221 N C POINT 346 R572 N C POINT 347 C541 N C POINT 348 C542 N C POINT 349 C549 N C POINT 350 C550 N C POINT 351 D417 N C POINT 352 R536 N C POINT 353 R537 N C POINT 354 R538 N C POINT 355 R539 N C POINT 356 R546 N C POINT 357 R547 N C POINT 358 U446 N C POINT 359 U447 N C POINT 360 R454 N C POINT 361 U451 N C POINT ...

Page 35: ...RIGHT RTC_3V3 LDO AVcc LDO Vcc LDO ALERT_VCC LDO Serial Data Interface I O Interface A D Interface AGC AFC PLL DC DC CONVERTER Charging Circuit Li Ion Battery Slim Standard Long ONE C VIBRATOR SYSTEM CLOCK 13MHz SRAM FLASH1 FLASH2 EEPROM RTC_CLOCK 32 768KHz KEY_BOARD SIM CARD SPEAKER MIC LCD BB INTERFACE RF INTERFACE ...

Page 36: ...F VCO U104 PLL1 PLL2 Loop Filter Loop Filter VCTCXO 13MHz RF VCO U107 AFCDAC 935 960 MHz 1805 1880 MHz Dual PLL U106 PCN 1580 1655 MHz Rx 1575 1650 MHz Tx GSM 1150 1185 MHz 540 MHz 1 2 1 6 PCN 270 MHz GSM 540 MHz I Q Mod 45 MHz 270 MHz GSM 270 MHz PCN 135 MHz GSM 270 MHz PCN 135 MHz 90 deg Shift 1 2 Phase Detector Loop Filter TX VCO U200 Dual PAM U106 APC IC U205 TXEN BAND Selection TXEN BAND Sele...

Page 37: ... the path from VBATT to BAT300 The node between D303 and BAT300 3V No Yes U410 pin 1 4 10 3 2V Check the circuit related to U410 No END Yes Check the initial operation U306 U101 pin3 H Check the circuit related to U306 U101 No Check for the clock signal at R107 Check the clock generation circuit related to U100 and Q100 No Yes U306 U101 pin5 3V Check U306 U101 and related circuit No Yes Yes ...

Page 38: ... pin 4 H The node between R312 and C325 H RST No Check the circult related to reset R348 H BOOT No Resolder R348 Yes Yes R440 H MSIZE No Resolder R440 Yes R438 L EXTPROC No Resolder R438 Yes Replace PBA Check all the other connection by Test S W Check the circuit around LCD Check the circuit around U304 EEPROM and data stored in it ...

Page 39: ...Part Abnormal charging part Replace TA Check the J401 pin 14 15 9 V No Yes Yes Check the U441 pin 14 15 9 V Resolder C569 C410 FB400 FB401 Yes No U409 pin 2 L Resolder R420 Yes No Resolder components around U441 Check the U441 pin 10 4 1V END Yes No ...

Page 40: ...02 pin1 7 3V Replace Q402 Resoldering J402 and check open connection from Q402 to J402 Yes Yes No No After Power ON Check SIMCLK Signal on J402 pin 3 in a few second After SIM card insert J402 pin 2 H SIMRST Replace the PBA Replace the PBA Yes Yes No No Check the circuit around U304 Serial EEPROM and data stored in it Yes Phone can t access SIM card Yes ...

Page 41: ...in 3 4 and D413 D414 R567 R568 Check the connection from J403 pin 3 4 U413 U415 pin 2 AVCC 3 0V Check the circuit from U414 to U413 U415 Check the circuit related to U308 END Resolder the R444 R445 R446 R447 C446 C450 and C451 Yes No Yes Yes Yes No No Check the Key PCB Replace the Key PCB No Yes ...

Page 42: ...5 6 Flow chart of trouble shooting 5 6 Speaker Part Speaker does not work Modify the SPK pins Check the depression of the SPK pins Is Speaker working Replace the Speaker END No Yes Yes Yes No ...

Page 43: ... Check Initial operation Replace the PBA Are the pin 12 13 14 and 15 of J403 low When one of the keys is pushed one of pin 12 13 14 and 15 of J403 is high Key PCB is OK Resolder pin 12 13 14 and 15 of J403 END Replace the Key PCB Yes No Yes Yes Yes No No ...

Page 44: ...Test S W Is there alert wave form on the R305 during alert tone test Is there alert wave form on the Q300 pin 3 during alert tone test U303 pin 5 3 3V Check the circuit related to Q300 END Check the circuit related to U303 Yes No Yes Yes No No Buzzer is ok Change the Buzzer Yes No ...

Page 45: ...low chart of trouble shooting 5 9 Ring Indicator Ring Indicator LED does not work GPO2 by Test S W U400 pin 2 H Between D300 and R300 H Check the LED Replace D300 END Resolder R300 U400 Yes No Yes Yes No No ...

Page 46: ...en R306 and R310 H GPO1 by test S W No Yes Yes No Check the L300 U305 R306 Q301 C314 C315 C316 U305 pin 7 210 230 VAC LCD backlight on Resolder CON1 pin 37 38 or Replace EL sheet No Yes No LCD BACKLIGHT KEY PCB LED Resolder R310 R309 Q302 pin 2 H No Yes Resolder Q302 Q302 pin 3 L No Yes Yes END Key PCB LED on Resolder J403 or Replace Key PCB No ...

Page 47: ...nector resolder Resolder U208 Pin 9 65 dBm Check VC1 L VC2 L VC3 H Resolder F203 Resolder Q200 L209 L207 C234 C223 C222 C237 Resolder F201 L205 L203 L206 L204 Check C229 CH 225MHz 20 dBm C138 540MHz 20 dBm Resolder U107 U104 Resolder F200 C213 C214 C215 L201 U201 Pin 21 22 23 24 40 mV Resolder OneC U414 U201 Check U201 Pin 44 45 2 5 V Pin 35 0 5 V Resolder U201 Pin35 Pin44 45 Resolder U414 No No N...

Page 48: ...solder U206 C264 Resolder of Change C217 R211 R212 R210 C121 Resolder or Change U200 R201 At 540MHz U104 10 dBm At CH 270MHz U107 10 dBm Resolder U201 U104 U107 U201 Pin 13 14 15 16 40 mV Resolder OneC U414 Check U201 Pin 46 2 5 V Pin 35 0 5 V Resolder U201 Pin35 Pin46 Resolder U414 No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U106 VBAT...

Page 49: ... IF connector resolder Resolder U208 Pin 16 65 dBm Check VC1 L VC2 L VC3 H Resolder F203 Resolder Q201 C235 C233 C214 C244 L210 Resolder F202 C224 C225 L208 Check C229 CH 225MHz 20 dBm C138 540MHz 20 dBm Resolder U107 U104 Resolder F200 C213 C214 C215 L201 U201 Pin 21 22 23 24 40 mV Resolder OneC U414 U201 Check U201 Pin 44 45 2 5 V Pin 35 2 5 V Resolder U201 Pin35 Pin44 45 Resolder U414 No No No ...

Page 50: ...lder U208 Resolder U207 C263 Resolder or Change C208 C141 R217 R214 R218 Resolder U200 R201 At 540MHz U104 10 dBm At CH 135MHz U107 10 dBm Resolder U201 U104 U107 U201 Pin 13 14 15 16 40 mV Resolder OneC U414 Check U201 Pin 46 Pin 35 2 5 V Resolder U201 Pin35 Pin46 Resolder U414 No No No No No No No No No No Yes Yes Yes No Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U106 VBATT Pin ...

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