ELECTRONICS DUAL BAND Mobile Cellular Phone SGH-A800 SERVICE DUAL BAND MOBILE CELLULAR PHONE Manual CONTENTS 1. Exploded Views and Parts List 2. PCB Diagrams 3. Electrical Parts List 4. Block Diagrams 5.
ELECTRONICS Samsung Electronics Co.,Ltd. Printed in Korea 11/2002 Rev 1.
1. Exploded Views and Parts List 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 Main Main Parts List Travel Adapter Travel Adapter Parts List Ciger Light Adapter Ciger Light Adapter Parts List Test Jig Wearable EAR Microphone Data Kit Battery Charger 2. PCB Diagrams 2-1 2-2 Main Top Main Bottom 3. Electrical Parts List 3-1 3-2 Main Parts List Top Main Parts List Bottom 4. Block Diagrams 4-1 4-2 Main Base Band Main RF 4-2-1 RF Transmit Part 4-2-2 RF Receive Part 5.
1.
1-2 Main Parts List Location No.
SGH-A800 COLOR & CODE COLOR SILVER Dark Silver Dark Blue Royal Blue FOLDER UPPER GH75-02117A GH75-02117B GH75-02117C GH75-02117D FOLDER LOWER GH75-02118A GH75-02118B GH75-02118C GH75-02118D ITEM FRONT COVER GH75-02116A GH75-02116B GH75-02116C GH75-02116D REAR COVER GH75-02121A GH75-02121B GH75-02121C GH75-02121D FOLDER DUMMY GH75-02119A GH75-02119B GH75-02119C GH75-02119D SILVER Dark Silver Dark Blue Royal Blue FOLDER UPPER GH72-04819A GH72-04819B GH72-04819C GH72-048
1-3 Travel Adapter A B C D 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK A GH44-00171A CHINA B GH44-00184A EUROPE C GH44-00171C UNITED KINGDOM D Gh44-00171E TAIWAN Exploded Views and Parts List 1-5
1-5 Ciger Light Adapter 1-6 Ciger Light Adapter Parts List 1-6 DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44-00170A BLACK Exploded Views and Parts List
1-7 Test Jig TEST JIG GH80-10508A TEST JIG CABLE GH39-00079A RF JIG CABLE GH39-00174A Exploded Views and Parts List 1-7
1-7 Test Jig DC POWER SUPPLY 8922 or 8960 WIRELESS COMMUNICATIONS TEST SET RF JIG CABLE TE ST JIG 232 CABLE TEST JIG CABLE 1-8 Exploded Views and Parts List
1-8 Wearable EAR Microphone Wearable EAR Microphone GH59-00322A 1-9 Data Kit DATA KIT Exploded Views and Parts List GH39-00078A 1-9
1-10 Battery Charger BATTERY CHARGER 1-10 GH44-00279A Exploded Views and Parts List
PCB Diagrams R306 C308 R304 R305 R430 SOFT1 CN201 DIGIT1 DIGIT4 DIGIT7 SYMBOL* C102 U202 R416 C304 C103 V315 C305 Q200 MIC400 C424 C425 C428 V400 C426 V401 LAMP204 R211 LAMP200 R207 TH200 DIGIT3 DIGIT6 DIGIT9 SYMBOL# U103 C133 R425 R426 C114 C132 単旭 R215R216 L300 DIGIT2 DIGIT5 DIGIT8 DIGIT10 C113 R422 LAMP205 R417 TP415 C417 C414 R212 C416 C412 C415 C413 C400 C402 C401 C441 L400 TP412 R208 L402 C423 C420 TP413 TP421 R201 C200 R200 R605 C421 C419 C422 L401 C442 CLR R203
2-2 Main Bottom C711 U700 R708 R709 U703 R704 R707 R706 R711 C507 R602 R600 C607 R601 C713 C717 Q700 D100 ZD1 CON700 H103 R113 C504 U704 U201 U101 R418 R410 C418 R103 JT6 C602 C606 C605 C608 C612 C600 R415 C427 C316 V300 C212 C208 R225 C209 R226 C210 R227 C211 R228 C235 C236 C240 U503 L500 C509 C512 R408 R505 R504 R503 V203 H102 C302 C301 U300 U400 C406 C405 C407 C408 TP414 R402R403 R401 R400 U502 R608 R610 R609 R611 L501 C508 C513 R501 C610 U601 Q301 R312 C106 C300 JT30
3. Electrical Parts List 3-1 Main Parts List Top NO Refer ence SEC CODE Part Description Vendor Part No. 1 C234 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” GRP1555C1H270JZ01E 2 R414 2007-000162 R-CHIP “100Kohm,5%,1/16W,DA,TP,1005” RC1005J104CS 3 C312 2404-001086 “C-TA,CHIP” “4.7uF,20%,6.3V,GP,TP,2012,-” TESVSPOJ475M8RTJ 4 C313 2203-005061 “C-CERAMIC,CHIP” “100nF,+80-20%,16V,Y5V,TP,1005” MCH153F104ZK 5 C311 2203-000233 “C-CERAMIC,CHIP” “0.
NO Refer ence SEC CODE Part Description Vendor Part No. 32 TH200 1404-001221 THERMISTOR-NTC “47Kohm,-,4050K,1mW/C,-,-,TP” NCP15WB473J04RC 33 V400 1405-001082 VARISTOR “5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R 34 V401 1405-001082 VARISTOR “5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R 35 V315 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 36 V201 1405-001110 VARISTOR “18V,20A,1X0.5X0.6MM,TP” AVLC 14S 02 050 37 V202 1405-001110 VARISTOR “18V,20A,1X0.5X0.
NO Refer ence SEC CODE Part Description Vendor Part No. 75 C422 2203-000254 “C-CERAMIC,CHIP” “10nF,10%,16V,X7R,TP,1005,-” CM05X7R103K16AT 76 C308 2203-000438 “C-CERAMIC,CHIP” “1nF,10%,50V,X7R,TP,1005,-” CM05X7R102K50AH 77 C304 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 78 C400 2203-000812 “C-CERAMIC,CHIP” “0.033nF,5%,50V,NP0,TP,1005” CM05CG330J50AT 79 C401 2203-000812 “C-CERAMIC,CHIP” “0.
3-2 Main Parts List Bottom NO Refer ence SEC CODE Part Description Vendor Part No. 1 Q700 0504-001058 TR-DIGITAL “RN4985,NPN/PNP,200mW,2.2Kohm/47Kohm,UMD6,TP” RN4985-TE85L 2 Q701 0504-001058 TR-DIGITAL “RN4985,NPN/PNP,200mW,2.2Kohm/47Kohm,UMD6,TP” RN4985-TE85L 3 U201 0504-001060 TR-DIGITAL “BCR08PN,NPN/PNP,250mW,2.2Kohm/47Kohm,SOT-363,TP” BCR08PN 4 Q400 0505-001332 FET-SILICON “FDG6301,N,25V,0.22A,4OHM,.
NO Refer ence SEC CODE Part Description Vendor Part No. 31 V306 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 32 V305 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 33 V304 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 34 V303 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 35 V302 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300 36 V203 1405-001110 VARISTOR “18V,20A,1X0.5X0.
NO Refer ence SEC CODE Part Description Vendor Part No.
NO Refer ence SEC CODE Part Description Vendor Part No. 117 R608 2007-007771 R-CHIP “0OHM,5%,1/16W,DA,TP,1005” ERJ2GEJ0R0E 118 R103 2007-008117 R-CHIP “2.7Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP2701F 119 R402 2007-008117 R-CHIP “2.7Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP2701F 120 R403 2007-008117 R-CHIP “2.7Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP2701F 121 R702 2007-008117 R-CHIP “2.
NO Refer ence SEC CODE 160 C237 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 161 C240 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 162 C300 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 163 C316 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 164 C427 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT 165 C435 2203-005382 “C-CERAMIC,CHIP” “0.
NO Refer ence SEC CODE Part Description Vendor Part No.
NO Refer ence SEC CODE Part Description Vendor Part No. 2.0X1.25X0.7mm,TP” 242 U700 4709-001214 COUPLER-DIRECTION “880-915MHz,19.5+-1dB, 243 ANT700 GH61-00026A SPRING ETC-ANT. DCS214E-0897 13dB,2.0X1.25X0.7mm,TP” “SGH-N620,BE-CU,-,-,-,-,-,-,GLD,-,-” CONTACT 244 GH73-01322A Electrical Parts List RMO-RUBBER ANT “SPH-X7700,CR RUBBER, CONTACT 3X4XT1.
4.
4-2 Main RF Block Diagrams 4-2
4-3 8 EGSM TX 880 ~ 915 MHz (CH62 : 902.4 MHz) (CON700) RF Conecto r 11 5 (U704) 1 TXEN2 from U400 3VTX Rx Tx(GSM) Tx(DCS) 9 11 VAPC FROM U702 (U701 ) Dual P A M L L 2 7 1 +VBATT VC2 VC1 VC2 L H H L DCS TX 1710 ~ 1785 MHz (CH698 : 1747.4 MHz) 3 VC2 Anten n a S/W 2 VC1 A n t. S/W Control Ci rcuit 25 24 Si4200 (U600) - 6dBm @ 1301.4 MH z (G) - 9dBm @ 1364.
4-2-2 RF Receive Part Block Diagrams 4-4
5. Flow Chart of Troubleshooting and Circuit Diagram 5-1 Power ON 'POWER ON'does not work Yes Check the Battery Voltage is more than 3.4V? No Charge the Battery Yes The node between D101 and C106 > 2.8 V ? No Check U100 and the path from +VBATT to C106 Yes When the "END" key is pressed, D100 pin1 > 3.4V ? No Replace the PBA Yes No U111, U112 pin5 = 2.
+VBATT POWER DCVOLT RTC_3V3 C101 100UF 6.3V C131 1UF C130 1UF C132 1UF C133 1UF R109 10K 1 2 VIN GND U100 VOUT ON/OFFBYPASS 3 2 1 3 2 1 1 5 4 U111 VOUT U112 VOUT VOUT U103 GND ON/OFFBYPASS 5 4 5 4 5 4 1 C114 10NF C100 100NF C103 10NF C108 10UF 6.3V UMC5NTL U105 LP2985AIM5-3.0 3 2 VIN LP2981AIM5-2.5 ON/OFF NC GND VIN LP2981AIM5-2.5 ON/OFF NC GND VIN LP2985AIM5-3.3 3 R110 100K 2 5 C109 10UF 6.3V 3 4 C113 10NF C102 10UF 6.
5-2 Initial Initial Failure No U302 pin 6 = "H" ? Check and repair the important signals of U400 as follows Yes The node between R407 and C411 = "H" (RST) No Check U106 Yes R411 = "H" (SIMPWDN_BOOT) No Resolder R411 Yes Check all the other connection by Test S/W R423 = "H" (GPIO4_MSIZE) No Resolder R423 Yes Check the circuit around LCD R421 = "L" (GPIO2_EXTPROC) END 5-3 No Resolder R421 Replace PBA Flow chart of Troubleshooting and Circuit Diagram
Flow chart of Troubleshooting and Circuit Diagram 5-4 SIMPWDN_BOOT R407 R411 VDD3.0 U106 C411 BOOT SYSRST EXTPROC MSIZE CSROM U400 EL_EN R421 R423 VDD3.0 U302 FLASH2 F_CE F_VPP U400 R312 VDD3.
5-3 Charging Part Abnormal charging part Yes No Check the CN300-1 pin 17,18 > 5 V ? Replace TA Yes No Check the U104 pin 3 > 5 V ? Resolder C115 Yes No U104 pin 4 = "L" ? Resolder R103 Yes No Check the U104 pin 5 4.
Flow chart of Troubleshooting and Circuit Diagram 5-6 DCVOLT C115 10UF 10V U104 1 ISENSE 6 DRIVE 5 2 GND VSENSE 3 VCC PROG 4 LTC1734ES6-4.2#TR 3 R103 2.7K 4 CHG_ON ICHAG Q100 ZXT13P20DE6 1 2 5 6 C116 10UF 6.
5-4 Sim Part Phone can't access SIM card Yes No U101 pin 6 = 3 V ? Resolder R101 Yes No U101 pin 5 = "H" ? Replace the PBA Yes No U101 pin 2, 3 = 3 V ? Replace U101 Yes No CN100 pin 1, 5 = 3 V ? Resoldering CN100 and check open connection from U101 to CN100 Yes After Power ON, Check SIMCLK Signal on CN100 pin 3 in a few second No Replace PBA Yes After SIM card insert, CN100 pin 2 = "H(SIMRST) ? No Replace the PBA Yes END 5-7 Flow chart of Troubleshooting and Circuit Diagram
Flow chart of Troubleshooting and Circuit Diagram 5-8 C107 1UF 5 SIMPWREN VDD3.0 5 R101 39K SIMVCC 4 6 5 V.C1-2 R1,C1 R2 ON/OFF V.
5-5 Microphone Part Microphone does not work Yes Check the connection from MIC No Resolder MIC and C424, C428, V400, V401 Yes Check the circuit related to U400 No Resolder the R419, R420, R423, C424, C425, C426, C430 and C431 Yes No Check the MIC Replace the MIC Yes END 5-9 Flow chart of Troubleshooting and Circuit Diagram
Flow chart of Troubleshooting and Circuit Diagram 5-10 U400 VX1N VX1P C434 R427 C431 R419 AVCC2.
5-6 Speaker Part Speaker does not work Yes No Check for the clock signal at R608 Check the clock generation circuit (related to U502 and U601) and resolder R608 Yes No Resolder U301 U301 pin 17,18 =1.8V? Yes No Replace the PBA U230 pin 4,8="H"? Yes No Resolder U230 CN200 PIN 18,20=1.
C308 1NF R306 3.3K M_RESET M_IRQ M_LED C306 NC C307 100NF VREF VSS VDD PLLC IFSEL /RST /IRQ EXT1 CLKI C309 100NF R305 100K 1 2 3 4 5 6 7 8 9 MEL13M R304 100K 31 SCLK 32 R308 22K C310 68NF U301 YMU759-QE2 EQ1 VDD3.
5-7 Key Data Input Check Initial operation Yes Are KEYBOARD_ROW(0:4) is "Low" ? No Replace the PBA Yes When one of the keys is pushed, one of KEYBOARD_ROW(0:4) is "High" ? No Replace the PBA Yes END 5-13 Flow chart of Troubleshooting and Circuit Diagram
5-8 Receiver Part Receiver does not work Yes No Resolder EAR400 EAR400 pin 2, 3 = short ? Yes No Replace the PBA EAR400 pin 2, 3, 6 = 1.5V ? Yes No Replace the PBA U230 pin 4, 8 = "L" ? Yes No Resolder R219, R220 and U230 CN200 pin 18, 20 = 1.
5-15 Flow chart of Troubleshooting and Circuit Diagram U400 PWO1N PWO1P 2 6 EAR 400 3 REC- REC+ R219 R220 5 6 7 8 3 4 9 10 2 1 U230 20 18 CN200 REC- REC+ REC
5-9 Ring Indicator Ring Indicator LED does not work No U100 pin 5 = 3.
2 2 RI_GREEN 2 RI_BLUE RI_RED E C 3 1 E C 3 1 E C 1 3 HL500 Q4 DTC114YE Q2 DTC114YE Q3 DTC114YE 2 2 1 1 3 3 LED6 68 ohm,5% 220 ohm,5% 4 4 RTC_3V3 100 ohm,5% R14 5-17 Flow chart of Troubleshooting and Circuit Diagram R13 R12
5-10 Back Light (for Main & Sub LCD) Backlight does not work LCD Contrast high level in the menu? No Select LCD Contrast high level Yes No Check the circuit related to U100 CN 200 pin 10 = 3.
5-11 Back Light (for Key) Backlight does not work Backlight "ON" mode in the menu? No Select backlight "ON" mode Yes No GPO1 by test S/W R215 = "H" ? Yes No Resolder R215,R216 or resolder Q200 Q200 pin 3 = "L" ? Yes No Key PCB LED on ? Resolder R207~214 and LAMP200~207 Yes END 5-19 Flow chart of Troubleshooting and Circuit Diagram
5-12 GSM Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp.
5-13 GSM Transmit Tx On (level : 5) U704 Pin 8 30 dBm Yes Resolder CON700 No U704 Check VC1 : L VC2 : H Yes Pin 5 30 dBm No Yes No Check Ant.
5-14 DCS Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp.
5-15 DCS Transmit Tx On (level : 0) U704 Pin 8 25 dBm Yes Resolder CON700 No U704 Check VC1 : H VC2 : L Yes Pin 3 25 dBm No No U701 Pin 5 25 dBm Yes Yes Change or Resolder U704 Check Ant.
SDATA SDATA_O SCLK SCLK_O SYNEN1 SENB PDNB PDNB_O AFC XVCC POWER R505 R504 R503 R502 R501 10K L501 10nH 51 51 51 51 C513 10NF C508 10NF 2 1 C514 100PF TCO-9141 GND OutPut Vcont Vcc U502 C505 1UF 3 4 5 ON/OFF NC 4 VOUT U501 GND VIN 14 13 12 11 10 9 8 32 31 C512 10NF NC SDI 6 5 C509 100PF 15 16 SCLK SENB SDO PDNB NC GND GND 7 R500 100 LP2981AIM5X-2.
PDNB_O GSMTX DCSTX GSMRX DCSRX 1 5 F601 B7820 2 G R606 150 R601 150 3 OUT 1 IN OUT 4 G G 2 5 IN 3 OUT OUT 4 G R607 150 R604 39 R602 150 R600 39 C606 1.8PF C605 1.8PF C603 1.2PF C611 C607 33PF 33PF L601 27nH COILCRAFT L600 7.5nH COILCRAFT DIAG1 C608 22NF 24 RFOD 23 VDD1 22 RFIGN 21 RFIGP 20 RFIDN 19 RFIDP 18 RFIPN 17 RFIPP SI4200-BM U600 C609 22NF 26 27 28 29 30 DIAG2 VDD4 16 15 14 13 12 11 10 VDD2 GND F600 RFLON L2 B7716 RFLOP L1 C602 1.
DCSTX VC2 3VRF 3VRF TXEN2 C705 100PF C2 B1 E1 B2 C1 Q700 E2 1 2 3 C717 27PF RN4985-TE85L 6 5 4 R705 10K R703 22K,1% C713 1NF C710 33PF C707 27PF VC1 : GSM TX VC2 : DCS TX IN2- 16 15 2 1 3 5 6 4 VCC2 PS GND2RFin1 9 10 11 12 R713 20K 13 4 H L L Tx(GSM) RX VC1 3 2 5 3VTXEN2 L H L VC2 R711 10K R714 20K R709 68 R708 150 R704 120 R706 82 VC1 VC2 BANDSEL _BANDSEL Q701 RN4985-TE85L C703 390PF C709 27PF 1 6 C706 47PF R702 2.
