GSM TELEPHONE SGH-E400 SERVICE GSM TELEPHONE Manual CONTENTS 1. Specification 2. Exploded Views and Parts List 3. Electrical Parts List 4. Flow Chart of Troubleshooting 5. Block Diagrams 6.
1. SGH-E400 Specification 1. GSM General Specification GSM900 Phas e 1 EGSM 900 Phas e 2 DCS1800 Phas e 1 PCS1900 Fr eq. Band[MHz] Uplink/ Downli nk 890~915 935~960 880~915 925~960 1710~1785 1805~1880 1850~1910 1930~1990 ARFCN r ange 1~124 0~124 & 975~1023 512~885 512~810 Tx/ Rx s paci ng 45MHz 45MHz 95MHz 80MHz Mod. Bit rate/ Bit Period 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us Ti me Slot Peri od/Fr ame Per iod 576.9us 4.615ms 576.9us 4.
SGH-E400 Specification 2.
2. SGH-E400 Exploded View and its Parts list 1.
SGH-E400 Exploded view and its Part list 2. Cellular phone Parts list NO Description SEC.
SGH-E400 Exploded view and its Part list 3. Test Jig (GH80-00865A) 3-1. RF Test Cable 3-2. Test Cable (GH39-00090A) 3-3. Serial Cable (GH00-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE (GH39-00159A) 3-6.
3.
SGH-E400 Electrical Parts List SEC Code Design LOC Design LOC SEC Code SEC Code Design LOC 2203-000254 C712 3710-001816 CN302 0601-001547 LED214 2203-000254 C713 3722-001715 CN401 0601-001547 LED215 2203-000254 C714 1405-001018 D300 0601-001547 LED216 2203-000254 C715 0407-000115 D301 0601-001547 LED217 2203-000254 C716 2909-001191 F1002 0601-001547 LED218 2203-000254 C717 2904-001410 F1005 4302-001130 M1 2203-000254 C718 2901-001193 F200 2801-004025 OSC601 2
SGH-E400 Electrical Parts List SEC Code Design LOC Design LOC SEC Code SEC Code Design LOC 2007-001307 R206 2007-000171 R399 2007-000162 R615 2007-001307 R207 2007-000171 R403 2007-000162 R630 2007-001307 R208 2007-000775 R404 2007-000171 R700 2007-001307 R209 2007-000148 R405 2007-007200 R709 2007-001307 R210 2007-000159 R406 2007-007200 R710 2007-001307 R211 2007-000775 R407 2007-000162 R713 2007-001307 R212 2007-001119 R408 2007-000162 R714 2007-001307 R2
SGH-E400 Electrical Parts List SEC Code Design LOC Design LOC SEC Code SEC Code 1205-002268 U901 GH74-05299A GH71-01572A 1209-001434 U902 GH74-06625A GH71-01957A 1405-001082 ZD201 GH75-00223A GH72-07008A 1405-001082 ZD203 GH75-02795A GH72-07010A 1405-001082 ZD204 GH72-07021A GH72-08489A 1405-001082 ZD205 GH73-01817A GH72-08490A 1405-001082 ZD207 GH74-06623A GH74-04734A 1405-001082 ZD208 GH92-01465A GH74-05300A 1405-001082 ZD209 GH41-00429A GH74-05307A 1405-001082 Z
SGH-E400 Electrical Parts List SEC Code Design LOC GH72-07018A GH72-07019A GH72-07020A GH73-01816A GH97-02645A GH42-00274A GH75-02796A GH68-02026A GH70-00021A GH71-01510A GH72-07028A GH72-07029A GH72-07030A GH72-07031A GH73-01818A GH74-03618A GH74-05307A GH99-03311A 6902-000295 GG68-10705A GH68-00518B GH68-01335D GH68-01778A GH68-03501A GH69-01235A GH69-01580A GH69-01581A 3-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
4. SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 1.Baseband 1. Power ON 'Power On' does not work Check the current consumtion more than 100mA NO Downloader again YES Check the Vbat(battery+ O) Voltage more than 3.3V NO Charge the Battery YES Check the pin 15 of U100 is more than 2.8V NO Check U100 and C113 YES U100 pin 46,39 = 2.8V NO Check U100 and C116 YES U100 pin 13 = 1.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 2. Initial Initial Failure Check the signal at the pin 28 of U100 is "High" when the phone is boot on NO Check U100 YES NO Check the pin 22 of U100 is "High" Check the U700 YES NO Check the pin 4 of OSC801 is around 2.8V Check the soldered status of OSC801, R803, U100 YES Check and resolder LCD connector CN200 if there is solder bridhe between the pins YES END 3. Sim Part Phone can't access SIM card Check the pin 1 of CN100.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 4. Charging Part Abnormal charging part Check the pin 17,18 of CN302 VEXT is > 4V? NO Check U100 YES Check the pin 2 of U103 is "LOW"? NO Check the U601 YES Check the pin 3 of Q101 is "LOW"? NO Check the Q101 YES Check the pin 5 of U102 is "3.2~4.
KEY_ROW(0) KEY_COL(2) TA_VEXT PWR_KEEP PWR_ON JIG_ON C105 2.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 5. Microphone Part Microphone does not work Check the assembled status of microphone. NO Reassemblage microphone YES Check the reference voltage on mic path C418 =2.5V NO resolder or change C400,R408,R409,R405,R406) YES NO Check U700 Is microphone ok? YES END 6.
AUXOUT AUXIN MICOUT MICIN C457 27PF C491 NC C458 0.5PF R421 56K 10PF C452 56K R406 AOUTAN VCCA 8.2K This Document can not be used without Samsung's authorization 4-6 SAMSUNG Proprietary-Contents may change without notice R424 330K R422 91K VCCA R420 C494 33UF 1UF C414 1 R414 4.7K C495 10PF C490 10PF C400 330NF VCCA R408 680 R410 680 R405 10K R460 0 R461 NC Q400 C409 33UF 2 3 C492 10PF C461 39PF R423 200K VCCD AOUTBN AOUTBP R409 4.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 7. Back Light Backlight does not work Check the soldered status of EL pad YES Backlight "ON" mode in the meue? NO Select backlight "ON" mode YES Check the PIN 3 of CN200 = 2.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 8.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams VBAT VCCD R200 RST 33 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 GREEN_LED LCDVIB_EN LED_EN D(8)_FO D(9)_FO D(10)_FO D(11)_FO D(12)_FO D(13)_FO D(14)_FO D(15)_FO MSPK+ MSPKRED_LED EL_PWR R221 0 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 17 16 15 14 D(0)_FO D(1)_FO D(2)_FO D(3)_FO D(4)_FO D(5)_FO D(6)_FO D(7)_FO A(2)_FO CP_WEN_FO EL_EN CLCD_EN_FO GLCD_EN_FO 13 12 11 10 9 8 7 6 5 4 3
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 2.RF 1.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 2.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 3.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 4. GSM Transmitter NO F1002 pin 13 about 2~3dBm? NO F1002 pin 11 : 2.8V CONTINUS TX ON U700,U701 check & change CONDITION MS TX level 19 YES YES CN1001, C1012 check & change NO CH : 62 U1001 pin 9 pin 3~4dBm? RBW : 100KHz VBW : 100KHz YES SPAN : 10MHz REF LEV. : 10dBm F1002 check & change U1001 pin 4 : 3.7 V? NO ATT. : 20dB BATTERY, U100 check & change YES U1001 pin 2 : 1.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 5. DCS Transmitter NO F1002 pin 13 about 2~3 dBm? NO F1002 pin 9 : 2.8 V? U700,U701 check & change CONTINUS TX ON CONDITION MS TX level 12 YES YES CN1001, C1012 check & change NO CH : 698 RBW : 100KHz U1001 pin 11 pin 3~4dBm? VBW : 100KHz SPAN : 10MHz YES REF LEV. : 10dBm F1002 check & change U1001 pin 4 : 3.7 V? NO ATT.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams 6. PCS Transmitter NO F1002 pin 13 about 2~3 dBm? NO F1002 pin 9 : 2.8 V? U700,U702 check & change CONTINUS TX ON CONDITION MS TX level 12 YES YES CN1001 check & change NO CH : 698 RBW : 100KHz U1001 pin 11 pin 3~4dBm? VBW : 100KHz SPAN : 10MHz YES REF LEV. : 10dBm F1002 check & change U1001 pin 4 : 3.7 V? NO ATT.
RXIN RXIP RXQN RXQP SERDAT SERCLK SERLE SDO SYN_EN CLK13M_RF C910 22NF VRF 2 RXQP 3 RXQN 4 RXIP 5 RXIN 23 24 6 VDDA U900 7 VDDC 10 SDI GND 9 SCLK CKP C911 100PF 8 C914 10PF VOSC C916 100PF NC SDI SCLK SENB SDO PDNB NC GND U902 MICRO STRIP LINE L900 3.
This Document can not be used without Samsung's authorization TXPOWER TX_BAND_SEL C1026 270PF C1038 10NF SAMSUNG Proprietary-Contents may change without notice 100K R1038 3.3UF 6.3V C1044 NC R1037 6.3V 100UF C1043 VBAT 6.3V 3.
SGH-E400 Flow Chart of Troubleshooting and Circuit Diagrams M EM O 4-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
5.
SGH-E400 Block Diagrams POWER X-TAL (DC/DC, CHARGER) 13MHz IRDA TRIDENT ACC DSP16000 DB(15:0) PPI INT1 (Programmable IRQx Peripheral I/O) PAx RSTB GPIO TXIN RWN AB(8:0) RS232 TXIP CSP1093 IO ARM7TDMI IO TXQP RWN TX I/Q TXQN AB(8:0) RX I/Q RXIP RF SOLUTION DB(15:0) TXP RXIN - RFIC INT1 SERCK RXQP - PAM IRQx SERLE RXQN PAx SERDA SERCK RSTB OCTL SERLE SERDA SMART SIM I/O RXOVL CARD TXP OCTL X-TAL 32.
6.
This Document can not be used without Samsung's authorization SAMSUNG Proprietary-Contents may change without notice R212 LED210 TP711 TP710 TP712 TP713 ZD211 C407 R218 U401 1 7 4 * SEND LED209 R217 LED215 ZD208 LED212 R211 ZD202 ZD209 R208 C410 F202 F200 R214 TP714 LED206 LED204 R206 ZD204 R407 R404 C401 R442 LED202 R204 C412 R403 ZD210 R470 R220 C403 MENU R416 LEFT F203 UP 0 8 5 2 CLEAR DOWN R422 R424 F201 F204 LED203 ZD206 R216 LED214 R213 ZD205
ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. SEP. 2003 Printed in Korea. 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. Code No.: GH68-03771A BASIC.
