Samsung SGH-P270 Service Manual page 23

VCC_ADC_2V6
U300
B10
MES_BATT
R302
B9
VF
4 1 A8
VCC VOUT
A9
C318 EAR_ADC
C319 B8
C320
AF5
3 2
GND NC FM_AUDIO_L
C321
AF4
FM_AUDIO_R
V1
W1
AFC
Y1
VCC_ADC_2V6 VCC_RX_TX RAMP
AD6
AUXMICP
AD5
AUXMICN
E16
FMP_CS2n
D20
FMP_OEn_RWn
E18
FMP_WE_En
C338
C19
J5
AC9
C17
E14
N19
H2
U4
U5
DAC300 T4
DAC0
AC22
AC19
AB17
AB21
AC21
BB3G_REF_ON
AB22
AB19
AD15
AC17
AD18
AD16
AB16
CTRL_VREF_3G_B1
AF19
AB15
AC13
AC16
TP300 G5
BB3G_MC_INT0
TP301
K4
BB3G_MC_INT1
AB14
H17
W24
R305
R4
IRX_N
P4
IRX_P
R5
QRX_N
P5
QRX_P
W4
ITX_N
V4
ITX_P
W5
QTX_N
V5
QTX_P
FMP_AD(1:16)
F24
FMP_AD(1)
D26
FMP_AD(2)
FMP_AD(3) M24
C25
FMP_AD(4)
FMP_AD(5) G26
E24
FMP_AD(6)
E22
FMP_AD(7)
FMP_AD(8) D24
E23
FMP_AD(9)
FMP_AD(10) E19
G22
FMP_AD(11)
D22
FMP_AD(12)
FMP_AD(13) F23
C21
FMP_AD(14)
FMP_AD(15) B22
C23
FMP_AD(16)
FMP_DATA(0:15)
R22
FMP_DATA(0)
L24
FMP_DATA(1)
T22
FMP_DATA(2)
K25
FMP_DATA(3)
FMP_DATA(4) P22
M22
FMP_DATA(5)
P26
FMP_DATA(6)
L22
FMP_DATA(7)
N24
FMP_DATA(8)
J22
FMP_DATA(9)
N22
FMP_DATA(10)
H24
FMP_DATA(11)
H22
FMP_DATA(12)
G24
FMP_DATA(13)
L23
FMP_DATA(14)
FMP_DATA(15) F26
C7
D17
B12
C12
A15
B16
D18
B18
AD21
AE25
AD22
AC23
AD23
AE24
AE23
AB18
AB26
Y23
Y22
D3
E9
A14
B14
B13
D10
D9
E10
K8
D8
C11
E8
C9
D7
C6
D6
D5
A3
C18
J4
AD10
GSMFS
AB8
AB13
RSTEXTn
AB10
RF_EN_3G
A13
AC10
RF_CLK_3G
C343
U3
BB2G_REF_CLK
B17
BB3G_WAKE_UP
TP319 AE9
32KHZ_DIGIT
AB11
RF_DATA_3G
D12
AB7
AF12
B7
R309
C16
E13
E12
TP324 C5
MCAM_SLEEP
TP325 A5
Y(0:5) VCAM_SLEEP
B4
Y(0)
VDD_IO_LOW C8
Y(1)
Y(2) E7
B5
Y(3)
Y(4) D4
A4
Y(5)
B2
PCLK
A6
MCLK
A7
HSYNC
B6
VSYNC
C13
BUSSEL2_FM
T5
RXD2
M3
CTS2
Y3
RST_FM
B20
BT_INT
Y5
SIM_OFF
T25
RST_BT
A18
BB3G_WAKE_UP
R317 A25
WIFI_VDD_EN
Y2
RTS2
AA4
TXD2
TP331
C2
C3
WIFI_CS
D2
FCI_CD
F5
CAM_KEY
D1
ESD_DETECT
E1
JACKIN
H3
RXD1
J2
EARSW
G1
HALL_SW
G3
FESW1
F1
FESW2
G2
FESW3
J3
CAM_PD
H1
WIFI_INT
K3
CAM_RST
J1
WIFI_CLK
M2
WIFI_MOSI
L2
RCV_SEL
K2
N3
WIFI_MISO
L25
WIFI_RST
A2
FCI_CMD
B1
FCI_CLK
C1
FCI_DATA0
B3
Y(7)
TP333
D15
TP334 C15
TP335 A17
SAMSUNG Proprietary-Contents may change without notice
VDDE2 VDD_GSM_CORE
VDD_USB
C300
VDD_PLL
BB3G_VDDC
ADV3V VDD_IO_LOW
AVDD
ADC1
ADC2
ADC3
ADC4
ADC5
ANL
ANR
AUXDAC1
AUXDAC2
AUXDAC3
AUXMICN
AUXMICP
BB3G_CS
BB3G_RD
BB3G_WR
BB3G_DSR
BB3G_RXD
BB3G_TCK
BB3G_TDI
BB3G_TDO
BB3G_TMS
BB3G_TXD
BB3G_ADC0
BB3G_ADC1
BB3G_DAC0
BB3G_GPO0
BB3G_GPO1
BB3G_GPO2
BB3G_GPO3
BB3G_GPO4
BB3G_GPO5
BB3G_GPO6
BB3G_GPO7
BB3G_GPO8
BB3G_GPO9
BB3G_GPO10
BB3G_GPO11
BB3G_GPO12
BB3G_GPO13
BB3G_GPO14
BB3G_GPO15
BB3G_INT0
BB3G_INT1
BB3G_JSEL
BB3G_RTCK
BB3G_TRST
BB3G_RXIN
BB3G_RXIP
BB3G_RXQN
BB3G_RXQP
BB3G_TXIN
BB3G_TXIP
BB3G_TXQN
BB3G_TXQP
BB3G_ADDR1
BB3G_ADDR2
BB3G_ADDR3
BB3G_ADDR4
BB3G_ADDR5
BB3G_ADDR6
BB3G_ADDR7
BB3G_ADDR8
BB3G_ADDR9
BB3G_ADDR10
BB3G_ADDR11
BB3G_ADDR12
BB3G_ADDR13
BB3G_ADDR14
BB3G_ADDR15
BB3G_ADDR16
BB3G_DATA0
BB3G_DATA1
BB3G_DATA2
BB3G_DATA3
BB3G_DATA4
BB3G_DATA5
BB3G_DATA6 UCP300
BB3G_DATA7
BB3G_DATA8
BB3G_DATA9
BB3G_DATA10
BB3G_DATA11
BB3G_DATA12
BB3G_DATA13
BB3G_DATA14
BB3G_DATA15
BB3G_DEBUG0
BB3G_DEBUG1
BB3G_DEBUG2
BB3G_DEBUG3
BB3G_DEBUG4
BB3G_DEBUG5
BB3G_DEBUG6
BB3G_DEBUG7
BB3G_DEBUG8
BB3G_DEBUG9
BB3G_DEBUG10
BB3G_DEBUG11
BB3G_DEBUG12
BB3G_DEBUG13
BB3G_DEBUG14
BB3G_DEBUG15
BB3G_DEBUG16
BB3G_DEBUG17
BB3G_DEBUG18
BB3G_TR_ACESYNC
BB3G_TR_ACECLK
BB3G_TR_ACEPKT0
BB3G_TR_ACEPKT1
BB3G_TR_ACEPKT2
BB3G_TR_ACEPKT3
BB3G_TR_ACEPKT4
BB3G_TR_ACEPKT5
BB3G_TR_ACEPKT6
BB3G_TR_ACEPKT7
BB3G_TR_ACEPKT8
BB3G_TR_ACEPKT9
BB3G_TR_ACEPKT10
BB3G_TR_ACEPKT11
BB3G_TR_ACEPKT12
BB3G_TR_ACEPKT13
BB3G_TR_ACEPKT14
BB3G_TR_ACEPKT15
BB3G_CSOUT
BB3G_ETMTI
BB3G_GSMFS
BB3G_PLOCK
BB3G_RESET
BB3G_SPIEN
BB3G_DBGACK
BB3G_SPICLK
BB3G_SYSCLK
BB3G_WAKEUP
BB3G_SLOWCLK
BB3G_SPIDATA
BB3G_AD_DR_MSB
BB3G_SY_SCLKEN
BB3G_UM_TSCLKO
BBCKISEL
BB3G_PIPESTAT0
BB3G_PIPESTAT1
BB3G_PIPESTAT2
CAMDATA_0
CAMDATA_1
CAMDATA_2
CAMDATA_3
CAMDATA_4
CAMDATA_5
CAMDATA_6
CAMDATA_7
CAMCLKI
CAMCLKO
CAMHS
CAMVS
GPIOA0
GPIOA1
GPIOA2
GPIOA3
GPIOA4
GPIOA5
GPIOA7
GPIOA8
GPIOA9
GPIOA10
GPIOA11
GPIOA12
GPIOA13
GPIOA14
GPIOA15
GPIOA16
GPIOA17
GPIOA18
GPIOA19
GPIOA20
GPIOA21
GPIOA22
GPIOA23
GPIOA24
GPIOA25
GPIOA26
GPIOA27
GPIOA28
GPIOA29
GPIOA30
GPIOA31
GPIOB3
GPIOB8
GPIOB9
GPIOB10
GPIOB11
GPIOB13
GPIOB14
GPIOB15
This Document can not be used without Samsung's authorization
VDD_PLL VDDE2
VDD_USB AVDD
VDDE1
AVDD VCC_SIM AVDD_HFA
C301
IOM_DU
9-5
Flow Chart of Troubleshooting
AB1
GPIOE8 BB3G_MC_INT0
AA1
GPIOE9 BB3G_MC_INT1
AA3
GPIOE10 USB_SUSPEND
AD7
GPIOE11 IT_PMU
A23
GPIOE20 LCD_DIM
B21
GPIOE21
A22
GPIOE22
C20
GPIOE23
A21
GPIOE24
E15
GPIOE25
C10
GPON0 BB2G_REF_ON
SMP_NFI_D(0:7)
AD12
SMP_NFI_D(0)
HDPA0
AD13
SMP_NFI_D(1)
HDPA1
AB6
SMP_NFI_D(2)
HDPA2
AB12 SMP_NFI_D(3)
HDPA3
AC12
SMP_NFI_D(4)
HDPA4
AC11 SMP_NFI_D(5)
HDPA5
AE11
SMP_NFI_D(6)
HDPA6
AE12
SMP_NFI_D(7)
HDPA7
W8
HDPA8
Y4
HDPA9
AD1
HDPA10
AB5
HDPA11
AD2
HDPA12
AF9
HFR1 HFR_P
AF8
HFR2 HFR_N
HMP_SDDQ(0:15)
AF23 HMP_SDDQ(0)
HMP0
AE26
HMP_SDDQ(1)
HMP1
AF24
HMP_SDDQ(2)
HMP2
AF25 HMP_SDDQ(3)
HMP3
AC26
HMP_SDDQ(4)
HMP4
AD24 HMP_SDDQ(5)
HMP5
AC24
HMP_SDDQ(6)
HMP6
AA26
HMP_SDDQ(7)
HMP7
AC25 HMP_SDDQ(8)
HMP8
AD26
HMP_SDDQ(9)
HMP9
Y26 HMP_SDDQ(10)
HMP10
AA22
HMP_SDDQ(11)
HMP11
V26
HMP_SDDQ(12)
HMP12
AA23
HMP_SDDQ(13)
HMP13
W26
HMP_SDDQ(14)
HMP14
AB23 HMP_SDDQ(15)
HMP15 HMP_SDA(0:12)
AC18
HMP_SDA(0)
HMP16
V22 HMP_SDA(1)
HMP17
Y24
HMP_SDA(2)
HMP18
W22
HMP_SDA(3)
HMP19
AA24 HMP_SDA(4)
HMP20
U22
HMP_SDA(5)
HMP21
U26 HMP_SDA(6)
HMP22
W23
HMP_SDA(7)
HMP23
V24
HMP_SDA(8)
HMP24
U24 HMP_SDA(9)
HMP25
V25
HMP_SDA(10)
HMP26
T24 HMP_SDA(11)
HMP27
W25
HMP_SDA(12)
HMP28
R25
HMP29
R24
HMP30 HMP_SDCLKO
V23
HMP31 HMP_SDCKE
M26
HMP32 HMP_SDBA0
P24
HMP33 HMP_SDBA1
P25
HMP34 HMP_SDLDQM
T26
HMP35 HMP_SDUDQM
J24
HMP36 HMP_SDCASn
R26
HMP37 HMP_SDRASn
U23
HMP38 HMP_SDCSn
U25
HMP39 HMP_SDWEn
LD(0:7)
AE22
LD(0)
SMP0
AC20 LD(1)
SMP1
AF22
LD(2)
SMP2
AD20 LD(3)
SMP3
AF21
LD(4)
SMP4
AE21
LD(5)
SMP5
AE20
LD(6)
SMP6
AD19
LD(7)
SMP7
AF20
SMP8 TP307
AF15
SMP16 L_RS
AE16
SMP17 LCD_RESET
AE15
SMP18 L_CS1
AF14
SMP19 L_WR
AD17
SMP20 LCD_RD
AE14
SMP21 FLM
AC15
SMP22 SMP_NFI_CEn
AC14
SMP23 SMP_NFI_ALE
AE13
SMP24 SMP_NFI_WEn
AD14
SMP25 SMP_NFI_RDY
AD11
SMP26 SMP_NFI_REn
AF13
SMP27 SMP_NFI_CLE
KCOL(0:4)
AE4
KCOL(0)
KCOL0
AD3
KCOL(1)
KCOL1
AE3 KCOL(2)
KCOL2
AF3
KCOL(3)
KCOL3
AB9 KCOL(4)
KCOL4
KROW(0:4)
AE8
KROW(0)
KROW0
AE10
KROW(1)
KROW1
AD9
KROW(2)
KROW2
AC8
KROW(3)
KROW3
AD8
KROW(4)
KROW4
M5
MSDATA1 FCI_DATA1
F2
MSDATA2 FCI_DATA2
M1
MSDATA3 FCI_DATA3
FMP_AD(1:16)
F25 FMP_AD(1)
TO_BB3G_ADDR1
C26 TP316
FMP_AD(2)
TO_BB3G_ADDR2
M25
FMP_AD(3)
TO_BB3G_ADDR3
B25 FMP_AD(4)
TO_BB3G_ADDR4
H26
FMP_AD(5)
TO_BB3G_ADDR5
E25 FMP_AD(6)
TO_BB3G_ADDR6
E21
FMP_AD(7)
TO_BB3G_ADDR7
D25
FMP_AD(8)
TO_BB3G_ADDR8
D23
FMP_AD(9)
TO_BB3G_ADDR9
E20
FMP_AD(10)
TO_BB3G_ADDR10
G23 FMP_AD(11)
TO_BB3G_ADDR11
D21
FMP_AD(12)
TO_BB3G_ADDR12
F22 FMP_AD(13)
TO_BB3G_ADDR13
C22
FMP_AD(14)
TO_BB3G_ADDR14
B23
FMP_AD(15)
TO_BB3G_ADDR15
C24 FMP_AD(16)
TO_BB3G_ADDR16
FMP_DATA(0:15)
R23 TP317 FMP_DATA(0)
TO_BB3G_DATA0
K24
FMP_DATA(1)
TO_BB3G_DATA1
T23
FMP_DATA(2)
TO_BB3G_DATA2
J25 FMP_DATA(3)
TO_BB3G_DATA3
P23
FMP_DATA(4)
TO_BB3G_DATA4
M23 FMP_DATA(5)
TO_BB3G_DATA5
N26
FMP_DATA(6)
TO_BB3G_DATA6
K22
FMP_DATA(7)
TO_BB3G_DATA7
N25
FMP_DATA(8)
TO_BB3G_DATA8
J23
FMP_DATA(9)
TO_BB3G_DATA9
N23 FMP_DATA(10)
TO_BB3G_DATA10
H25
FMP_DATA(11)
TO_BB3G_DATA11
H23 FMP_DATA(12)
TO_BB3G_DATA12
G25
FMP_DATA(13)
TO_BB3G_DATA13
K23
FMP_DATA(14)
TO_BB3G_DATA14
E26 FMP_DATA(15)
TO_BB3G_DATA15
L26 TP320
TO_BB3G_CS FMP_CS2n
D19 TP321
TO_BB3G_RD FMP_OEn_RWn
E17 TP322
TO_BB3G_WR FMP_WE_En
L4
USBDM USBDM
L5
USBDP USBDP
H5 R310 R326
USBRREF
M4
USB_VBUS5V VBUS_5V
VDD_IO_HIGH
AE1
SIMCLK SIMCLK
AC3
SIMIO SIMIO VDD_CAM_IO_2V9
E4
SIMPWR Y(6) VDD_MEM_3G_CORE
AA5
SIMRST SIMRSTn
A12
JSEL0
A10
JSEL1
T1
IN IRX_TX_N
U1
IP IRX_TX_P
P1
QN QRX_TX_N
R1
QP QRX_TX_P
N5
SCL1
G4
SCL2
N4
SDA1
F4
SDA2
J19 TP326
TCK TCK
D14 TP327
TDI TDI
D16 TP328
TDO TDO
D13 TP329
TMS TMS
C14 TP330 MICBIAS C344 C345
TRST TRSTn
L3
TXD1 TXD1
AD4
MICBIAS
AE6
MICN MICN
AE5
MICP MICP
C346
AF7
EAR1 EAR1
AF6
EAR2 EAR2
AE2
RFCMCLK RF_CLK
AB2
RFCMEN0 RF_EN
AB3 VDD_IO_LOW
RFCM_DATA RF_DATA
AB4
RFSIG2 PON_PA
AC1
RFSIG6 GSMFS
E5
RFSIG7 PON_4220
B11
R319
CLK32I 32KHZ_DIGIT
R320
AF2
REF26MI
B15 TP336
RESET RSTEXTn
A16
RSTBB
AC4
RSTEXT
A11 TP332
RTCK RTCK
AC7
RXTXDAT_A BAND_SEL
AC5
RXTXEN MODE_SELECT
T3 R322
MCLK BB2G_REF_CLK
AD25
MCLKSEL
AA25
DCL IOM_DCL
AB24
DD IOM_DD
AB25
FSC IOM_FSC
V2
VREF
VDD_IO_LOW
C348
C349
D303
SCL1
SCL2
SDA1
SDA2
RSTON
D302