Samsung GT-I9300i Block Diagram
Level
8.
Block Diagram
8-1.
Repair
3
SPEAKER
EAR SPEAKER
MAIN MIC
RCV
EAR MIC
UUSSBB IICC TTSSPP
MIC_BIAS1_1.8V
RCV_N
RCV_P
EARSPK_L
EARSPK_L
MAIN_MIC_P
CCAAMMEERRAA
((HHDD))
MAIN_MIC_M
EAR_MIC_M
EAR_MIC_P
SPK_OUT_N
SPK_OUT_P
MIC_BIAS_2. 8V
LLCCDD MMOODDUULLEE
CCOODDEECC
88GGBB EEMMMMCC
SSDDIINN7 7DDUU22--88GG--994444
11..99MM
VVTT CCAAMMEERRAA
88MM CCAAMMEERRA A
AAcccceell .. MMaaggnneettii cc
OLED_ID
LLI IGGHHT T
PPRROOXXYY ++
CAM_MCLK0
CAM_MCLK0
EMMC_CLK
EMMC_CMD
MSM_RES OUT_ N
eeMMMMCC DDAATTAA((00::77))
II22CC__SSDDAA
II22CC__SSCCLL
CAM2_RST_N
MMIIPPII__CCSSII11__11LLAANNEE
MMIIPPII__CCSSII11__CCLLKK__PP//MM
PROXY_INT_N
CAM1_RST_N
CAM2_STBY_N
MIPI_CSI0_CLK_P/M
CAM_I2C_SCL / SDA
CAM_I2C_SCL / SDA
DSI_RST_N
MIPI_DSI0_CLK_P_F
MIPI_DSI0_CLK_M_F
MMIIPPII__DDSSII00__DDAATTAA__44LLAANNEESS
MMIIPPII__CCSSII00__44LLAANNEESS
BLI C
TS_INT_N
KT D3102EUI
TS_I2C_SCL
TS_I2C_SDA
LCD_ON LCD_PWM_BL
WWCCDD9 9330066
SLIMBUS_CLK
CODEC_INT_N
SLIMBUS_DATA
COEC_RESET_N
AUDIO_REF_CLK
++
CCo onnnn..
CCo onnnn..
SSDD CCa arrdd
MMii c crroo SSIIMM
UIM1_CLK
UIM1_DATA
UIM1_RESET
T_FLASH_CLK
T_FLASH_CMD
T_FLASH_D(0:3)
T_FLASH_DETECT_N
HHOOMMEE KKEEYY
MMii c crroo SSIIMM
VVOOLLUUMMEE KKEEYY
KPSNS1
KPSNS0
UIM2_CLK
UIM2_DATA
UIM2_RESET
HOME_GPI O_37
LLPPDDDDRR2 2
PPOOPP MMEEMMOORRYY
BT_CTL
BT_SSBI
FM_SSBI
BT_DATA
WCSS_XO
WLAN_SET
WLAN_CLK
WLAN_DATA0
WLAN_DATA1
WLAN_DATA2
WWCCNN33666600AA
RFCLK1_19. 2M
DDUUPPLLEEXXEERR
BBTT/ /WWI IFFII__AANNTT
FM_DATA
WLAN_IM/ P
WLAN_QM/ P
CH0_SSBI_RX
CH1_SSBI_RX
CH0_SSBI_TX_GPS
CH0_BB_TX_IP/M
CH0_BB_RX_IP/M
CH0_BB_TX_QP/M
CH0_BB_RX_QP/M
BBTT//FFMM/ /WWIIFFII
BBPPFF
FM_ANT
WL_RFIO_5G
EEAARRJJAACCKK
DPX165950DT-8126A1
WL_BT_RFIO
MMAAIINN__AANNTT
RF_TX_DA_2
AAWWTT66775511
BB11//BB88 PPAA
RX_B1
PDET_IN
RF_TX_DA_1
OUT_B8
OUT_B1
SSFFXX889977AAYY550022
SSFFXXGG5500PPYY7 70022
DDuupplleexxeerr
DDuupplleexxeerr
WCDMA_B1
WCDMA_B8
AAPP++CCPP
MMSSMM88222266
GP_DATA0
GP_DATA1
GPS_BB_RX_IP/M
GPS_BB_RX_QP/M
WWTTRR22660055
TTRRAANNCCEEIIVVEERR
RF_TX_DA_3
AAWWTT66775555
BB22//BB55 PPAA
RX_B2
RX_B8_G900
RX_B5_G850
OUT_B5
OUT_B2
BB88660077
SSFFXX883366AAYYAA0022
DDuupplleexxeerr
DDuupplleexxeerr
WCDMA_B2
WCDMA_B5
GPS_RF_IN
RX_DCS_PCS
LLNNAA
RRDDAALLNN1166
FFIILLTTEERR
SSAAWWFFDD11GG8844AAMM00FF00AA
GPS_ANT
PCS
DCS
OOSSCC
1199..22MMhhzz
19.2M_IN
19.2M_OUT
RFCLK1_19.2M
VCAM_FLASH
PM_VIB_DRV_N
VPH_PWR_MOTOR
FFLLAASSHH
MMOOTTOORR
SSSSBBII
PPMMIICC
PPMM88222266
BAT_ID
R_SENS_M/P
PM_RESIN_N
PM_KYPD_PWR_N
KKEEYY
BBAATTTT
PPOOWWEERR
VV
__
II
FF
55
__
VVBBAATT
VVPPHH__PPWWRR
CCOONNNN..
MUIC_I2C_SCL / SDA
USB_HS_DM/DP
MUIC _INT_N
SS
VV
UU
BB
MMUUIICC
TTSSUU6 6772211YYFFPPRR
USB_ID
VVBBUUSS__55VV__IIFF
USB_DP/DP
IIFF CCOONNNN..
FFEEMM
SSKKYY7777557733--1122
8-1
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
PCB Diagrams
8-2.
8-2-1.
Top
8-2
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
8-2-2.
Bottom
8-3
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Level3Repair
LOGIC
8-3.
8-3-1.
Power On
Power switch on
NG
Connect the jig box.
Check the current consum
ption
>= 100
mA?
Yes
Check the battery
voltage
>= 3.45?
Yes
Check the TP PS_
HOLD pin is
1.85
Yes
Check the clock at
OSC400
=19.2
MHz
Yes
V?
NO
\
NO
NO
Download
Change the battery
Check the PMIC
relatedtoPS_HOLD
NO
?
Resolder OSC400
C461(VREG_S1)=1.15V?
C465(VREG_S2)=1.15V?
C467(VREG_S3)=1.3V?
C468(VREG_S4)=2.1V?
NO
Check the voltage and Resolder
PMU400
Yes
check
the initial operation
Yes
END
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NO
8-4
Resolder or Replace UCP300
NO
Change the main PBA
Level3Repair
8-5
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Level3Repair
8-3-2.
LCD Working
Power Switch On
LCD Display
On?
Yes
NO
LCD FPCB
connector is co
rrectly connecti
ned?
Yes
Correctly connected
NO
C624, C630
ELVDD_4.6V=4.6V
ELVSS_-4.9V=-4.9V
Yes
CHECK
LCD DATALINE
LCD_SDA,SCL)
(
Replace U605&Check
L602,L603,L604,L605
NO
Resolder or replace UCP300
NO
Replace or Resolder
&
L602,L603,L604,L605
Yes
Replace LCD
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NO
Replace PBA
8-6
Level3Repair
8-7
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Level3Repair
8-3-3.
TSP
Operate TSP
NG
Check
TSP Connecting
YES
Check
LCD Connecting
YES
Check
VDD_TSP_3.0V
NO
NO
NO
Reconnecting TSP
Reconnecting LCD
Resolder or Replace
PM400
YES
Check
TSP_SCL,SDA
YES
Replace LCD
NO
NO
Resolder or Replace
U607
Replace PBA
8-8
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Level3Repair
8-3-4.
Audio Working
Speaker Working
Operate speaker
NG
Signal on in
SPK_OUT_P
SPK_OUT_N?
&
YES
NO
Resolder
ZD507,ZD508
C533,C534
Signal on in
L516,L518
?
YES
Speaker break
down?
NO
Change main PBA
NO
YES
Resolder
L516, L518
Replace U503
Change Speaker
NO
Resolder or
Replace UCP300
8-9
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
8-10
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Receiver Working
Operate Receiver
NG
Level3Repair
Check
ZD509,ZD510,
YES
Receiver break
down?
NO
Check
U503, UCP300
YES
Change main PBA
NO
YES
NO
Resolder or Replace
ZD509,ZD510,
Change Receiver
Resolder or Replace
U503, UCP300
8-11
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
MICW
orking
Operate MIC
NG
Pollute
MIC Hole?
NO
Signal on in
C503, C504?
YES
YES
NO
Clean up
MIC hole
Resoldering
C503, C504
MIC
break down
NO
Check Voltage
of
L500
is
Voltage
1.8V ?
YES
Crash U503,
UCP300 IC?
YES
YES
Resolder or Replace
MIC
NO
Change U503
NO
Change main PBA
8-12
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
8-13
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
Stereo Headset Working
Hands-free stereo
headset
NG
Button NG?
NO
MIC NG?
NO
SPK NG?
YES
YES
YES
Resolder or Replace
U502
Check
L508,L515
YES
Reconnect HDC500
Signal on
in L517 L519
NO
Check U502
NO
Resolder or Replace
L517 L519
YES
NO
Resolder or Replace
U503
The End
8-14
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
8-15
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
Level3Repair
8-3-5.
KEY Working
Power KEY
Press Power Key
Check the P/K
Soldering State
It is OK
YES
Check
R509
NG
?
NO
NO
Resoldering the TACT500
Resolder or Replace
R509
YES
Check
ON_SW
YES
Change main PBA
NO
Resolder or Replace
UCP300
8-16
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Volume Key and Oter Sub key
Press Volume Key
and Other Sub Key
Level3Repair
Volume Key NG?
NO
home Key
NG?
NO
Yes
Yes
Resolder or Replace RCV&Volume Key FPCB
Resolder or Replace
L511,L512,ANT502,ANT503
Yes
Resolder or Replace UCP300
Yes
Replace PBA
Touch key LED
NG?
Yes
Check LED_VDD_3.3V, TSP
NO
Menu&Back Key
NG?
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Distribution, transmission, or infringement of any content or data from this document without Samsung’swritten authorization is strictly prohibited.
GO TO
8-17
8-3-3.
TSP
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