Samsung SGH-N628 Service Manual Download

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ELECTRONICS

SERVICE

DUAL BAND Mobile
Cellular Phone

SGH-N628

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-N628

Page 1: ...RVICE DUAL BAND Mobile Cellular Phone SGH N628 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 12 2001 Rev 1 0 GH68 02604A ELECTRONICS ...

Page 3: ...in Bottom 3 Electrical Parts List 3 1 Main Parts List Top 3 2 Main Parts List Bottom 4 Block Diagrams 4 1 Main Base Band 4 2 Main RF 4 2 1 RF Tx Part 4 2 2 RF Rx Part 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 12 GSM Transmit 5 ...

Page 4: ...Exploded Views and Parts List 1 1 1 Exploded Views and Parts List 1 1 Main SGH N628 3 2 1 4 6 9 5 8 13 10 11 12 7 14 17 18 19 15 16 ...

Page 5: ...H82 00092A 1 9 LCD GH07 00131A GH07 00131A GH07 00131A 1 10 COVER CONNECTOR GH73 00893A GH73 01001A GH73 01001B 1 11 SHIELD REAR GH72 03213A GH72 03213E GH72 03213F 1 12 SPEAKER 3001 001253 3001 001253 3001 001253 1 13 REAR COVER ASS Y GH75 01471A GH75 01672A GH75 01672B 1 14 MOTOR GH31 00033A GH31 00033A GH31 00033A 1 15 MOBILE CAP GH73 00892A GH73 00999A GH73 00999B 1 16 ANTENNA GH42 00137E GH42...

Page 6: ... Battery Charger Exploded Views and Parts List 1 3 1 4 Travel Adapter Parts List TYPE SEC CODE REMARK A GH44 00171 A CHINA 1 3 Travel Adapter A 1 6 Test Jig TEST JIG GH80 10508A Battery Charger GH44 00281A ...

Page 7: ...DM CABLE GH39 00080A Exploded Views and Parts List 1 4 TEST JIG CABLE GH39 00079A RF JIG CABLE GH39 00094A ...

Page 8: ...rts List 1 7 Normal EAR Microphone Wearable EAR Microphone GH59 00359A 1 8 Data Kit DATA KIT GH39 00078A 1 6 1 Test Jig 8922 or 8960 WIRELESS COMMVNCATIONS TEST SET TEST JIG DC POWER SUPPLY RF JIG CABLE TEST JIG CABLE 232 CABLE ...

Page 9: ...00 D100 F200 F201 F203 JT1 JT10 JT11 JT12 JT13 JT14 JT15 JT2 JT3 JT4 JT5 JT6 JT7 JT8 JT9 L200 L500 L604 L624 LED201 MIC1 OSC401 OSC500 Q200 Q201 Q202 Q203 Q400 R100 R101 R202 R205 R206 R207 R208 R209 R210 R211 R212 R215 R217 R400 R401 R402 R403 R404 R405 R406 R407 R409 R410 R411 R412 R413 R414 R422 R423 R432 R438 R439 R440 R441 R442 R443 R500 R501 R502 R503 R504 R506 R507 R508 R509 R510 R511 R512 ...

Page 10: ...6 C677 C678 C679 C698 C700 CN2 CN211 CN220 CN3 CN310 CN501 D300 L600 L601 L602 L603 L605 L606 L607 L608 L609 L612 L615 L616 L618 L619 L620 L621 L622 L623 M100 Q300 Q303 Q600 Q601 Q602 Q603 Q604 R102 R103 R104 R105 R107 R108 R300 R301 R302 R303 R304 R305 R306 R307 R310 R320 R323 R328 R331 R332 R590 R602 R604 R605 R606 R607 R608 R609 R610 R611 R612 R613 R614 R615 R616 R621 R624 R627 R632 R633 R634 R...

Page 11: ... C403 2203 002525 C CERAMIC CHIP C561K 560PF 50V GRP155R71H561KD01E 20 C409 2203 002443 C CERAMIC CHIP C331K 330PF 50V CL05B331KBNC 21 C410 2203 000679 C CERAMIC CHIP C270J 27PF 50V GRP1555C1H270JZ01E 22 C411 2203 000679 C CERAMIC CHIP C270J 27PF 50V GRP1555C1H270JZ01E 23 C413 2203 003054 C CERAMIC CHIP C090C 9PF 50V GRP1555C1H9R0DZ01E 24 C414 2203 000386 C CERAMIC CHIP C150J 15PF 50V GRP1555C1H15...

Page 12: ...A01E 58 C522 2203 000812 C CERAMIC CHIP C330J 33PF 50V GRP1555C1H330JZ01E 59 C523 2203 000812 C CERAMIC CHIP C330J 33PF 50V GRP1555C1H330JZ01E 60 C524 2203 000812 C CERAMIC CHIP C330J 33PF 50V GRP1555C1H330JZ01E 61 C525 2203 000812 C CERAMIC CHIP C330J 33PF 50V GRP1555C1H330JZ01E 62 C526 2203 005061 C CERAMIC CHIP C104Z 100NF 16V CL05F104ZONC 63 C527 2203 000254 C CERAMIC CHIP C103K 10NF 16V GRP15...

Page 13: ... 0401 001033 DIODE MCL4154 MCL4154 98 F200 2901 001116 COMP SMD NFM39R12C471T1 NFM21CC471R1H3D 99 F201 2901 001116 COMP SMD NFM39R12C471T1 NFM21CC471R1H3D 100 F203 2901 001116 COMP SMD NFM39R12C471T1 NFM21CC471R1H3D 101 L200 2703 001752 INDUCTOR SMD LL1005 FH39NJ LL1005 FH39NJ 102 L604 2703 002201 INDUCTOR SMD 33NH 5 1 0X0 5X0 5M CIH05T33NJNC 103 L624 2703 002170 INDUCTOR SMD CIH05T6N8JNC CIH05T6N...

Page 14: ...681CS 141 R432 2007 001325 R CHIP 3 3K 5 RC1005J332CS 142 R438 2007 000775 R CHIP 33K 5 RC1005J333CS 143 R439 2007 007090 R CHIP 11K 5 ERJ2GEJ113X 144 R440 2007 001244 R CHIP 91K 5 RC1005J913CS 145 R441 2007 007771 R CHIP 0 5 RC1005J000CS 146 R443 2007 007771 R CHIP 0 5 RC1005J000CS 147 R500 2007 007317 R CHIP 2 2K 1 MCR01MZSF2201 148 R501 2007 007317 R CHIP 2 2K 1 MCR01MZSF2201 149 R502 2007 0073...

Page 15: ...4CS 184 R599 2007 000162 R CHIP 100K 5 RC1005J104CS 185 R601 2007 007771 R CHIP 0 5 RC1005J000CS 186 R617 2007 007698 R CHIP 5 1K 1 RK73H1ETP5101F 187 R618 2007 007142 R CHIP 10K 1 RK73H1ETP1002F 188 R619 2007 007142 R CHIP 10K 1 RK73H1ETP1002F 189 R622 2007 001311 R CHIP 270 5 RC1005J271CS 190 R623 2007 007311 R CHIP 22K 1 MCR01MZSF2202 191 R625 2007 001301 R CHIP 68 5 RC1005J680CS 192 R626 2007 ...

Page 16: ...06 1202 001036 IC TC75W56FK TE12L TC75W56FK TE12L 212 U611 1209 001354 IC ETC LINEAR HD155173NPEL QFP 2 HD155173NPEL 213 V500 1405 001082 COMP SMD VC040205X150R VC040205X150R 214 V507 1405 001082 COMP SMD VC040205X150R VC040205X150R 215 V508 1405 001082 COMP SMD VC040205X150R VC040205X150R 216 V509 1405 001082 COMP SMD VC040205X150R VC040205X150R 217 V509 1405 001093 COMP SMD VC040214X300 VC040214...

Page 17: ...A01E 20 C124 2404 001105 C TA CHIP 10UF 6 3V TCSCS0J106MPAS 21 C125 2203 000679 C CERAMIC CHIP C270J 27PF 50V GRP1555C1H270JZ01E 22 C126 2404 001231 C TA CHIP 47UH 6 3V 595D476X06R3A2T 23 C127 2203 005065 C CERAMIC CHIP C105Z 1UF 10V CL10F105ZONC 24 C128 2203 000254 C CERAMIC CHIP C103K 10NF 16V GRP155R71C103KA01E 25 C150 2203 005065 C CERAMIC CHIP C105Z 1UF 10V CL10F105ZONC 26 C200 2203 000679 C ...

Page 18: ...0V GRP1555C1H100JZ01E 62 C622 2203 000438 C CERAMIC CHIP C102K 1NF 50V GRP155R71H102KA01E 63 C623 2203 000233 C CERAMIC CHIP C101J 100PF 50V GRP1555C1H101JD01E 64 C624 2203 000233 C CERAMIC CHIP C101J 100PF 50V GRP1555C1H101JD01E 65 C625 2203 005053 C CERAMIC CHIP C3R9C 3 9PF 50V CL05C3R9CBNC 66 C626 2203 000812 C CERAMIC CHIP C330J 33PF 50V GRP1555C1H330JZ01E 67 C627 2203 000438 C CERAMIC CHIP C1...

Page 19: ...00233 C CERAMIC CHIP C101J 100PF 50V GRP1555C1H101JD01E 104 C678 2203 000233 C CERAMIC CHIP C101J 100PF 50V GRP1555C1H101JD01E 105 C679 2203 000679 C CERAMIC CHIP C270J 27PF 50V GRP1555C1H270JZ01E 106 C700 2203 000330 C CERAMIC CHIP C120J 12PF 50V GRP1555C1H120JZ01E 107 CN2 3710 001105 CONNECTOR 24 8005 002 000 867 24 8005 002 000 867 108 CN211 3711 004937 CONNECTOR AXK6F14335J AXK6F14335J 109 CN2...

Page 20: ...0140 R CHIP 1K 5 RC1005J102CS 144 R108 2007 000140 R CHIP 1K 5 RC1005J102CS 145 R300 2007 000162 R CHIP 100K 5 RC1005J104CS 146 R301 2007 000162 R CHIP 100K 5 RC1005J104CS 147 R302 2007 000148 R CHIP 10K 5 RC1005J103CS 148 R303 2007 000162 R CHIP 100K 5 RC1005J104CS 149 R304 2007 000162 R CHIP 100K 5 RC1005J104CS 150 R305 2007 000162 R CHIP 100K 5 RC1005J104CS 151 R306 2007 000148 R CHIP 10K 5 RC1...

Page 21: ...EXB28V100J 189 R643 2007 000140 R CHIP 1K 5 RC1005J102CS 190 R644 2007 000172 R CHIP 10 5 RC1005J100CS 191 SW1 3404 001152 COMP SMD LS10N2 T LS10N2 T 192 SW2 3404 001152 COMP SMD LS10N2 T LS10N2 T 193 TH300 1404 001005 COMP SMD NTH5G40B473J01TE NCP21WB473J03RA 194 U102 1203 002076 IC LP2985AIM5 3 0 LP2985AIM5 3 0 195 U103 1203 001701 IC LP2982AIM5X 3 0 LP2982AIM5X 3 0 196 U104 0505 001423 COMP SMD...

Page 22: ...224 V204 1405 001110 VARISTOR 18V 20A 1X0 5X0 6MM TP AVLC 14S 02 050 225 V205 1405 001082 COMP SMD VC040205X150R VC040205X150R 226 V206 1405 001110 VARISTOR 18V 20A 1X0 5X0 6MM TP AVLC 14S 02 050 227 V207 1405 001110 VARISTOR 18V 20A 1X0 5X0 6MM TP AVLC 14S 02 050 228 V208 1405 001110 VARISTOR 18V 20A 1X0 5X0 6MM TP AVLC 14S 02 050 229 V212 1405 001093 COMP SMD VC040214X300 VC040214X300 230 V213 1...

Page 23: ...XRX XVCC LED 3V3 RTC VCC AVcc LDO Vcc LDO Serial Data Interface I O Interface A D Interface AGC AFC PLL Load S W Charging Circuit Li Ion Battery Standard ONE C VIBRATOR SYSTEM CLOCK 13MHz SRAM EEPROM RTC_CLOCK 32 768KHz KEY_BOARD SIM CARD SPEAKER MIC BB INTERFACE RF INTERFACE Charging Current LCD YMU ...

Page 24: ...MHz DCS 135MHz Phase Detector Loop filter GSM 270MHz DCS 135MHz VP40575 U501 880 915MHz 1710 1785 MHz Tx Dual VCO U610 Mixer 2 Serial data interface 45MHz 270MHz v 2 GSM 1150 1185MHz DCS 1580 1655MHz IRXP IRXN QRXP QRXN I Q Demo SCLK SDATA AGC_EN bias circuit Mixer 1 RF VCO v 2 540MHz GSM 1150 1185MHz DCS 1575 1650MHz CH 62 947 4MHz CH 698 1842 4MHz CH 62 902 4MHz CH 698 1747 4MHz CH 62 1172 4MHz ...

Page 25: ...gh ITXP ITXN QTXP QTXN Loop Filter TX VCO U610 Dual PAM U608 APC IC U611 890 915 MHz 1710 1785 MHz Coupler 15 9 4 4 3 3 U607 U609 1 1 3 5 8 540 MHz PCN 1575 1650 MHz Tx GSM 1150 1185 MHz 2 4 5 38 35 20 19 18 17 30 47 5 1 8 1 4 2 5 2 19 20 Ant S W Control Circuit 3VTXRx TXEN2 VC1 VC2 VC2 VC1 GSM Tx DCS Tx Rx H H L L L L 11 SI4133 MLP28 U612 VCTCXO 13MHz U613 IF VCO 1080MHz PLL1 PLL2 RF VCO AFCDAC 1...

Page 26: ...z Mixer 2 PGA I Q Demod Mixer 1 Mixer 1 LC Filter 45MHz 1 2 30 47 10 1 1 3 7 5 1 8 7 5 53 54 2 3 49 50 8 6 4 2 40 41 27 SDATA SCLK SYNEN1 46dBm 947 467 MHz 50dBm 1842 467 MHz 47dBm 30dBm 33dBm 38dBm 52dBm 43dBm 9dBm 1172 4 MHz 9 5dBm 1617 4 MHz GSM 1150 1185 MHz DCS 1580 1655 MHz Rx 8dBm 540 MHz 24 4dBm G 29dBm D 224 933 MHz 31dBm G 35dBm D 22dBm G 25dBm D 45 067 MHz 50dBm G 54dBm D 67 kHz 26 25 2...

Page 27: ...an 3 4V No Yes Yes Check U100 and the path from VBATT to M100 The node between D100 and M100 2 8V No Yes U106 pin 2 3 4 3 4V Check the circuit related to U106 No END Yes Check the initial operation U102 U105 pin3 3V Check U102 U105 and related circuit No Check for the clock signal at R613 Check the clock generation circuit related to U613 and Q604 No Yes Yes ...

Page 28: ... C113 C117 10NF 10NF 1 VCC 100NF C151 6 3V 10UF C100 C190 1UF 6 3V 10UF C124 VOUT 5 10NF C101 LP2985AIM5 3 0 U102 BYPASS 4 2 GND 3 ON OFF 1 VIN AVCC LP2985AIM5 3 3 U100 4 BYPASS 2 C127 1UF U106 FDC6329L R2 1 1K R108 1K R104 1K R107 6 3V 10UF C114 U105 LP2985AIM5 3 0 4 BYPASS GND 2 ON OFF 3 VIN R101 1K 100NF C110 RB414_II06N M100 GND 2 10NF C118 C102 C128 10NF S_BATT RTC_VCC LED_3V3 VBATT POWER 100...

Page 29: ... END No U410 pin 4 H The node between R505 and C509 H RST No Check U505 R509 H BOOT No Resolder R509 Yes Yes R526 H MSIZE No Resolder R526 Yes R528 L EXTPROC No Resolder R528 Yes Replace PBA Check all the other connection by Test S W Check the circuit around LCD Check the circuit around U504 EEPROM and data stored in it ...

Page 30: ...art of trouble shooting 5 4 U108 U407 VCC VCC R505 C509 R509 C526 SIM5V3V SIMPWDN_BOOT F_WP SYSRST GPIO3 GPIO4 DTR1 F U41 0 U40 1 6 F_Vdd VCC 3 4 Flash R400 F_WP U41 1 U402 6 Flash CSROM 3 4 vccw CS _ FL SH A ...

Page 31: ...rging Part Abnormal charging part Replace TA Check the CN220 pin 1 2 3 8V No Yes Yes Check the U303 pin 3 3 8V Resolder C200 V210 C316 Yes No U303 pin 4 L Resolder R328 Yes No Resolder components around U303 Check the U303 pin 5 1 5V END Yes No ...

Page 32: ...ooting 5 6 2SB1427 E T100 3 LTC1734ES6 4 2 TR 2 1 Q303 U303 1 L ON H OFF 6 3V VSENSE 5 VCC 3 PROG 4 ISENSE 1 GND 2 DRIVE 6 10V 10UF C317 C318 10UF C316 100K 1 R320 100NF 82K 1 R328 R323 CHG_ON DCVOLT VBATT ICHRG 2 7K BAT_VOLT ...

Page 33: ...10 pin1 7 3V Replace U300 Resoldering CN301 and check open connection from U300 to CN301 Yes Yes No No After Power ON Check SIMCLK Signal on CN310 pin 1 in a few second After SIM card insert CN310 pin 2 H SIMRST Replace the PBA Replace the PBA Yes Yes No No Check the circuit around U504 Serial EEPROM and data stored in it Yes Phone can t access SIM card Yes ...

Page 34: ...SFD 1 1 2 2 3 3 4 4 5 5 6 VCC SIMVCC C333 100NF C1 5 4 C1 2 GND MODE 3 6 VIN VOUT 1 LTC1986ES6 U304 R331 750K R332 C322 10UF 6 3V 1M C321 47NF NC C320 R306 C302 NC 5 6 R1 C1 1 R2 V C1 1 2 V C1 2 3 VIN R1 4 100K SIM_5V3V SIMPWDN_BOOT SIMCLK SIMRST SIMDATA FDG6323L U300 ON OFF ...

Page 35: ...Part Microphone does not work Reassemble the MIC to Front Case Check the microphone contact state Check the circuit from MIC or C561 END Resolder the R525 R527 R530 R531 C553 C532 and C538 Yes No Yes Yes No Check the Key PCB Replace the Key PCB No Yes ...

Page 36: ...Flow chart of trouble shooting 5 10 C532 U501 R525 R527 C561 C560 MIC VX 1P C553 R530 VX 1N R531 C538 V C C ...

Page 37: ...ow chart of trouble shooting 5 11 5 6 Speaker Part Receiver does not work Modify the receiver pins Check the depression of the receiver pins Is receiver working Replace the receiver END No Yes Yes Yes No ...

Page 38: ...Input Check Initial operation Replace the PBA Are the pin 1 3 5 and 7 of CN211 low When one of the keys is pushed one of pin 1 3 5 and 7 of CN211 is high Key PCB is OK Resolder pin 1 3 5 and 7 of CN211 END Replace the Key PCB Yes No Yes Yes Yes No No ...

Page 39: ...00 V201 VC040214X300 V206 VC040214X300 U636 VC040214X300 V202 VC040214X300 V203 VC040214X300 V200 VC040214X300 VC040214X300 V208 VC040214X300 V204 KEYBOARD_ROW 0 KEYBOARD_ROW 3 KEYBOARD_COL 3 KEYBOARD_COL 4 KEYBOARD_COL 0 KEYBOARD_COL 1 KEYBOARD_COL 2 KEYBOARD_ROW 1 KEYBOARD_ROW 2 B_LIGHT KEYBOARD_COL 0 4 KEYBOARD_ROW 0 4 VBATT ON_OFF ...

Page 40: ...ing 5 14 5 8 Ring Indicator Ring Indicator LED does not work GPO2 by Test S W Q200 Q202 Q203 pin 2 H Between LED201 and R210 R211 R212 L Check the LED Replace LED201 END Resolder Q200 Q202 Q203 R210 R211 R212 Yes No Yes Yes No No ...

Page 41: ...5 15 Flow chart of trouble shooting Q203 DTC114YE 2 3 1 1 R212 220 5 3 1 Q202 DTC114YE 2 3 DTC114YE Q200 2 100 5 R210 HL500 LED201 1 2 3 4 RI_RED RI_BLUE RI_GREEN LED_3V3 R211 68ohm 5 ...

Page 42: ...e menu Between R215 and R217 H GPO1 by test S W No Yes Yes No Check the circuit related U100 Pin 35 36 39 40 3 3V LCD backlight on Resolder LCD or Check Q201 No Yes No LCD BACKLIGHT KEY PCB LED Resolder R215 R217 Q201 pin 1 H No Yes Resolder Q201 Q201 pin 3 L No Yes Yes END Key PCB LED on Resolder CN211 or Replace Key PCB No CN200 ...

Page 43: ...5 17 Flow chart of trouble shooting R215 1K 100K R217 1 3 2 Q201 MMBT2222AWT1 BACKLIGHT B_LIGHT ...

Page 44: ...Pin 7 Check the circuit contain ing U102 is H YES Check U430 Pin 1 Check the U413 U613 Working YES U430 Pin 15 H Check the R441 U106 YES U430 Pin 14 is workin g Check the R645 R440 C437 well C434 R438 R439 C440 YES CH3 L_spk Change the U430 L_spk wor king YES Change the speaker YES END ...

Page 45: ... R2 1 2 V C1 1 3 V C1 2 4 C409 330PF 3 3NF C499 1M GND 2 1 INA1 3 INA2 OUTY1 6 OUTY2 4 5 VCC R422 C440 NL27WZ04 U413 11K 100NF R404 R439 100K 100NF 6 3V 4 7UF C432 C431 91K 100NF C433 R440 33K R432 3 3K R438 100PF C437 C434 68NF 4 RST WR 28 C430 1NF 18 SPOUT2 SPVDD 15 16 SPVSS SYNC 30 VDD 7 VREF 9 8 VSS IRQ 3 10 HPOUT L MONO HPOUT R 11 IFSEL 5 6 PLLC 31 SCLK 29 SDIN 32 SDOUT SPOUT1 17 22 D5 D6 21 ...

Page 46: ...5 MHz Check IF connector resolder Resolder U602 Pin 10 Check VC1 L VC2 L Resolder U604 C623 L609 Resolder U605 C620 C637 L616 Resolder U634 C621 L606 Check C600 CH 225MHz C636 1080MHz Resolder U612 Resolder U601 C604 C605 L603 C612 U605 Pin 24 25 26 27 Resolder OneC U501 U605 Check U605 Resolder U605 Pin32 33 35 Resolder U501 No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes...

Page 47: ...esolder of Change C651 R607 R608 R609 Resolder or Change U610 At 1150 1185MHz Pin 10 At CH 1080MHz Resolder U605 U612 U605 Pin 17 18 19 20 Resolder OneC U501 Check U605 Resolder U605 Pin35 38 Resolder U501 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 U608 VBATT Pin 2 APC OK Resolder or Change U608 Yes Check VBATT or APC Control No Pin 2...

Page 48: ...Check IF connector resolder Resolder U602 Pin 1 Check VC1 L VC2 L Resolder U604 C624 Resolder U605 C646 C647 L620 L618 C700 L607 Resolder U634 C625 L608 Check C600 CH 225MHz C636 1080MHz Resolder U612 Resolder U601 C604 C605 L603 C612 U605 Pin 24 25 26 27 Resolder OneC U501 U605 Check U605 Resolder U605 Pin32 33 35 Resolder U501 No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes...

Page 49: ...C611 Resolder or Change C626 R611 R613 R614 Resolder U610 Resolder U605 U612 U605 Pin 17 18 19 20 Resolder OneC U501 Check U605 Pin 35 Pin 38 Resolder U605 Pin35 38 Resolder U501 No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U608 VBATT Pin 2 APC OK Resolder or Change U608 Yes Check VBATT or APC Control No Yes At 1150 1185MHz Pin 10 At CH 1080...

Page 50: ...662 100PF C643 NC L619 C612 C615 1NF 10UF 6 3V 8PF R611 24 C641 10 R637 220 R608 C636 C623 100PF 1NF C670 C659 100PF C631 270PF 560PF L612 R644 10 82nH R601 0 C633 3 3PF L624 6 8nH 10K R639 33PF C640 R633 10K 1 8PF C647 C632 1NF 27PF R615 100 33PF C651 C619 FAR G6CS 1G8425 L250 U634 G1 2 4 G2 G3 6 8 G4 IN1 1 3 IN2 7 OUT1 OUT2 5 36K R606 C624 100PF C648 1NF L605 8 2nH C668 47PF 8 2nH L620 R635 10K ...

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