Samsung Cell Phone SGH-i300 user manual

User manual for the device Samsung Cell Phone SGH-i300

Device: Samsung Cell Phone SGH-i300
Size: 1,31 MB
Date of adding : 2014-04-07 13:54:08
Number of pages: 55
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Samsung Cell Phone SGH-i300 user manual
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Abstracts of contents
Summary of the content on the page No. 1

MITs TELEPHONE
SGH-i300
MITs TELEPHONE CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded Views and Parts List
4. Electrical Parts List
5. PCB Diagrams
6. Block Diagrams

Summary of the content on the page No. 2

1. SGH-i300 Specification 1-1. PDA specification Parts Name Description Note PXA272 Core : Xscale CPU Core Frequencies : 416 MHz Clock : 13 MHz, 32,768 KHz FLASH : 64M Byte IDT70P248L, DUAL PORT STATIC Memory, 8K/4K * 16 SRAM Bit Memory RAM K4M56323PE, SDRAM, 4 Bank, 8M * 32 Bit LCD Resolution : 320 x 240 QVGA 1.98" 65K TFT Color Auido CODEC WM9713, Dual codec stereo audio Melody YMU765, 64 poly External Card T-FLASH Card Camera 1/3.2" 1.3 Mega Pixels CMOS Image Sensor IEEE 1149.1 Portocol suppo

Summary of the content on the page No. 3

SGH-i300 Specification 1-2. Phone Specification Parts Name Description Note Trident EF version Core : DSP16000/ARM7IDMI CPU DSP Core : RAM(20k * 16), ROM(144K * 16) ARM CORE : RAM(4K * 32), ROM(2K * 32) Clock : 13 MHz, 32,768 KHz LRS1828 Memory ROM:4M*16Bit*2 RAM:2M*16Bit Single-cell Li-lon Charger, SIU, LED Driver Power-On/Off and reset control logic PMIC 8-bit ADC, Seven programmable low-drop-out regulators 1.8/3.0V SIM power supply and logic level translators Supports GSM 2+ new feature : mul

Summary of the content on the page No. 4

2. SGH-i300 Flow Chart of Troubleshooting 2-1. Power On 'Power on' does not work Yes Check the No Press nPower key or current consumption hardware Reset more than 20mA Yes Check the No Pin 1 of U323 or Charge the Battery U302 is High Yes Check the No Pin 1 of U305 is High Charge the Battery Yes Check the No Charge the Battery Vbat more than 3.6V Yes Check the No Check the Pin 4 of U301 is more than 3.3V Pin 8 of U 306 is High Yes Check the No Check the Pin 5 of U307 is Pin 1 of U 307 is High mor

Summary of the content on the page No. 5

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams VBAT VBAT VBAT VBAT R304 U306 81 R316 PDA_PWR_KEEP HOLE PWR AUTO_PWR C317 C312 7 2 3.0V 2S END_PWR RTCALARM SW DC VBAT BAT33 Q302 6 3 nPWR_SNS SENSE FET 1G 5 4 3D nALARM_SNS DEN GND R308 U301 1 5 IN OUT 5 C347 C348 1 2 GND R306 4 3 4 EN REF_BYP 2 POWER_DET C314 U304 C313 C331 3 R307 BAT33 VBAT R311 R317 VBAT C346 POWER_DET U323 5 R318 R302 4 1 1 VCC GND OUT B 4 Y nPOWER_FAIL 3 2 2 A NC VDD GND U315 3 R353 C330 3.0V VBAT VCC_CPU U302 1 5

Summary of the content on the page No. 6

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 1.8V VBAT VCC_MEM U305 1 5 IN OUT 2 GND 3 4 SYS_EN EN BYP C301 C303 C302 VBAT 1.35V CORE12 R355 U307 C316 1 8 PWR_EN RUN PLLLPF R356 2 7 ITH S/MODE 36 VFB VIN L301 4 5 GND SW C319 C320 C324 R309 R310 C325 1.25V 1.35V 1.1V PLL13 CORE12 SRAM11 R312 R303 C327 2-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

Summary of the content on the page No. 7

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-2. Initial part Initial Failure Yes Check the No "nRESET_IN" signal Check the BAT33 at the R110 is High Yes Check the "nGPIO_RESET"at the No Check the U102 GPIO1ofU101isHigh Yes No Check the "nTrst" Download again at U101 is High Yes Check the connections and initialization using Factory Test Program Yes Check the LCD connector CN501 and resolder bridge Yes END BAT33 U102 1 GND nRESET_IN VCC RESET 3 2 C146 2-4 SAMSUNG Proprietary-Cont

Summary of the content on the page No. 8

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-3. Charge Part abnormal Charging part Yes Check the No pin 22 of Replace TC CN605 = 4.2V Yes Check the Check the path from No pin 1 of CN605 CN301 = 4.2V to pin 1 of CN301 Yes Charging Yes END CN605 26 NC 25 NC 24 CHARGE_DET 24 23 23 22 VBAT 22 21 VBAT 21 20 D602 20 19 19 18 18 17 17 16 D603 VBUS 16 15 R609 USB_D+ 15 14 R621 SDS_TXD 14 13 R622 13 SDS_RXD 12 PWR_GND 12 11 11 10 R610 USB_D- 10 9 R623 9 FFTXD 8 R624 FFRXD 8 7 7 6 AUTO_PW

Summary of the content on the page No. 9

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-4. SIM Part Phone can't access SIM card Yes Check the No Check the circuit to pin 1 of CN701 CN701 voltage is 2.8V Yes Check the No SIM connector CN701 Resolder CN701 connection to SIM card Yes END CN701 6 1 1 6 5 22 5 4 3 3 4 G G G G 10 9 8 7 C702 C703 C704 C705 C706 C11 VDD34 J13 VDD12 N9 UP_CLK SIMCLK R10 UP_RST SIMRST P10 UP_IO SIMDATA J11 SIM_IO K11 SIM_RST K14 SIM_CLK 2-6 SAMSUNG Proprietary-Contents may change without notice Th

Summary of the content on the page No. 10

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-5. Microphone Phone Microphone does not work Yes Check the No connecttion from CN602 Change Main key FPCB Yes Audio loopback is enabled No Resolder by board test program R424,R426,R430,R431 R424,R431 = 2.2V Yes Check the Hardware reset or No Pin 23 of U401= resoldering or sine wave Download Image Yes END C440 MICINP MIC+ C442 C444 MICINN MIC- AUDIO30 R424 R425 R426 C446 AUDIO30 R430 C450 R431 R432 EAR401 C452 1 P_GND 2 MIC_P AUXINP 3

Summary of the content on the page No. 11

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-6. Speaker Part Speaker does not work Yes Replace speaker and if No speaker is well, than CN503 pin 3,4,5,6 =sinewave check the motor & flash LED Yes Check the No Hardware Reset or Pin13ofU404isHigh Download Image Yes Check the No Hardware Reset or Pin 1 of U404 is High Download Image Yes Is there sinewave Hardware reset or signal on the U404 pin 12, No 24 resoldering or during window Download Image media playing? Yes END VBAT U404 1

Summary of the content on the page No. 12

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

Summary of the content on the page No. 13

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-7. Receiver Part Receiver does not work Yes Check the No R434,R437 = sine wave Replace Receiver Yes Check the No Check the Pin 4,8 of Pin 2,10 of U409 U409 is sine wave Yes Check the No Check the Pin 4,8 of pin 3,9 of U409 is U409 Sine wave Yes Check the Hardware Reset or No Pin 35,36 of U401 resoldering or is Sine wave Download Image Yes END AUDIO30 MIC_WM_OUTN C493 MAIN RCV EAR_RCVN EAR RCV U409 EAR MP3 EAR_RCVP 1 10 RCVP V+ NO2 2 9

Summary of the content on the page No. 14

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

Summary of the content on the page No. 15

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-8. Key Matrix Part Check key initial operation Yes Check the Check the R126, No Pin 3,5,7,9,11 of R127,R128,R129, CN602 is High R142,R143 Yes When one of the No Replace the main key main keys is pushed one of pin 3,5,7,9,11 of PCB CN602 is High? Yes When one of the No Replace the main key side keys is pushed one of pin 3,5,7,9,11 of PCB CN602 is High? Yes END 2-12 SAMSUNG Proprietary-Contents may change without notice This Document ca

Summary of the content on the page No. 16

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams VBAT V_LCD30 CN602 1 2 1 2 3 4 KBR(0) 3 4 KBC(0) 5 6 KBR(1) 5 6 KBC(1) 7 8 KBR(2) 78 KBC(2) 9 10 9 10 KBR(3) KBC(3) 11 12 KBR(4) 11 12 KBC(4) 13 14 KEY_LED_CONTROL 13 14 KBC(5) 15 16 nGPIO_RESET END_PWR 15 16 17 18 17 18 19 20 19 20 21 22 21 22 23 24 MIC+ 23 24 JOG_R 25 26 MIC- 25 26 JOG_L 27 28 KBC(6) 27 28 29 30 29 30 C601 C602 2-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's

Summary of the content on the page No. 17

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-9. Led Indicator Part LED indicator does not work Yes Check the No Pin 2 of Check the Q601,Q602,Q603,Q605 R605,R612,R614,R616 is high Yes Check the No Check R627 is high R601,R628,R628,R630 Yes END BAT33 VBAT R626 R627 R601 R602 LED602 LED603 PDA LED 3 Q601 2 PHONE LED BLUETOOTH_LED R605 1 3 Q602 2 RED_LED R612 1 3 Q603 2 GREEN_LED R614 1 Q605 3 2 BLUE_LED R616 1 2-14 SAMSUNG Proprietary-Contents may change without notice This Documen

Summary of the content on the page No. 18

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

Summary of the content on the page No. 19

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams 2-10. Backlight Part Backlight does not work Yes No Select backlight Backlight "ON" mode in the menu "ON" mode Yes Check the No Pin 24 of CN501 Check the U501 is high Yes Check the No connection Check the R502 from CN501 Yes No LCD backlight on? Replace LCD module Yes END VBAT U501 L501 6 1 SW VOUT LED+ 12V 5 2 VIN GND R502 4 3 LCD_PWM CTRL FB LED- C527 C528 C529 C530 C531 R503 C526 R509 2-16 SAMSUNG Proprietary-Contents may change with

Summary of the content on the page No. 20

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams 2-11. EGSM Receiver Continuous RX on RFinput : 62CH AMP : -50dBm No Normal Check soldered status Condition catch of C933,L901 the channel? No Yes F903 check ANT902 resolder or pin6 = -65dBm change Yes No F903 check F903 resolder or pin 10,11 = -65dBm change Yes No C924, C925, L903 U902 check resolder or change pin 20.21 = -65dBm No U701 pin B10, C709, Yes C710 check or resolder No No U902 check TCX701 check TCX701 check pin 8 = 13M ? pi


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