Samsung GT-B2100 Service Manual page 73

Flow Chart of Troubleshooting
VDD_IO_HIGH_2.9V
C214
C213
VCC_SYN_2.8V
R200
MES_BATT
VF
TEMPERATURE
R201
HA(0)
BE1n
HA(18:23) HA(1)
HA(18)
HA(19)
HA(20)
HA(21)
HA(22)
HA(23)
BT_RST
TP_CS200
RXD2
CTS2
IT_PMU
BT_EN
BT_INT
RADIO_INT
BT_PWR_ON
TP_WAITn
WAITn
CLKBURST
RTS2
TXD2
EAR_SWITCH
AUX_MIC_SW
Y(6)
RXD1
Y(7)
RCV_SW
R211
CAM_PWR_ON
CAM_RST
LCD_BL_EN
LCD_RESET
SIMOFFn
LCD_ID
FLASH_EN
R212
HA(24)
SD_CMD
SD_CLK
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3
REF_ON
HD(0:15)
HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
HD(5)
HD(6)
HD(7)
HD(8)
HD(9)
HD(10)
HD(11)
HD(12)
HD(13)
HD(14)
HD(15)
HA(2:17)
HA(2)
HA(3)
HA(4)
HA(5)
HA(6)
HA(7)
HA(8)
HA(9)
HA(10)
HA(11)
HA(12)
HA(13)
HA(14)
HA(15)
HA(16)
HA(17)
RADIO_RST
HFR_P
HFR_N
ADVn
EAR1
EAR2
FM_RADIO_L
FM_RADIO_R
VDD_GSM_CORE_1.2V
VDD_IO_LOW_1.8V
VDD_USB_3.3V VDD_PLL_1.2V
VDD_IO_LOW_1.8V
AVDD_2.6V
C215 C202
J1
ADC1
J2
ADC2
K1
ADC3
K2
ADC4
C4
ADD0_BE0
U3
BE1
B1
ADD1_BE2
M2
ADD18
M3
ADD19
N2
ADD20
K5
ADD21
L4
ADD22
M4
ADD23
P1
ADD27
P3
GPIOA0
P8
GPIOA1
R9
GPIOA2
P18
GPIOA3
N1
GPIOA4
R1
GPIOA5
U2
GPIOA6
L5
GPIOA7
R3
GPIOA8
K4
GPIOA9
R8
GPIOA10
T9
GPIOA11
P9
GPIOA12
R12
GPIOA13
R13
GPIOA14
U17
GPIOA15
R11
GPIOA16
P14
GPIOA17
R10
GPIOA18
P10
GPIOA19
T16
GPIOA20
U18
GPIOA21
T18
GPIOA22
R18
GPIOA23
U12
GPIOA24
T11
GPIOA25
P12
GPIOA26
T12
GPIOA27
U11
GPIOA28
P13
GPIOA29
T17
GPIOA30
P11
GPIOA31
M1
GPIOB2
U10
GPIOB5
T13
GPIOB8
R14
GPIOB9
T14
GPIOB10
R15
GPIOB11
V17
GPIOB12
T15
GPIOB13
C11
GPIOC18
H5
GPON0
J5
GPON1
B7
IO0
C7
IO1
B6
IO2
C6
IO3
A6
IO4
B5
IO5
A5
IO6
B4
IO7
A4
IO8
A3
IO9
B3
IO10
D6
IO11
C3
IO12
A2
IO13
D4
IO14
B2
IO15
C1
IO16
C2
IO17
D2
IO18
E5
IO19
D3
IO20
E3
IO21
E1
IO22
E4
IO23
E2
IO24
F4
IO25
G3
IO26
F3
IO27
H4
IO28
G4
IO29
J4
IO30
G5
IO31
V3
HDP0
R4
HDP1
P4
HDP2
R5
HDP3
U1
HDP4
T5
HDP5
T3
HDP6
T2
HDP7
T1
HDP8
R2
HDP9
M5
HDP10
R6
HDP11
P5
HDP12
N5
HDP13
T8
HDP14
P6
HDP15
R7
HDP16
T7
HDP17
E18
HFR1
G18
HFR2
F5
ADV
H17
EAR1
J18
EAR2
N18
ANL
N17
ANR
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VDD_USB_3.3V VDD_CAM_2.8V
R213
VDD_IO_HIGH_2.9V VDD_SD_3.3V AVDD_HFA_2.6V
VDD_SIM_3.0V
C201
C200
AVDD_2.6V
V10
AUXDAC1
V11
AUXDAC2
V12
AUXDAC3
M18
AUXMICN
M17
AUXMICP
L18
MICN
L17
MICP
V15
MICBIAS
F14
CAMDATA0
H15
CAMDATA1
K17
CAMDATA2
G15
CAMDATA3
G17
CAMDATA4
F15
CAMDATA5
F16
CAMDATA6
E12
CAMDATA7
J15
CAMCLKI
J17
CAMCLKO
TP_HSYNC
G16
CAMHS
E13
CAMVS
N4
CS1
N3
CS3
P2
CS0
P15
KCOL0
N14
KCOL1
M14
KCOL2
N15
KCOL3
L14
KCOL4
K14
KROW0
K15
KROW1
M15
KROW2
J14
KROW3
L15
KROW4
J16
RFCLK1
M16
RFDO1
K16
RFEN0
R16
RFSIG0
R17
RFSIG1
P16
RFSIG2
P17
RFSIG6
N16
RFSIG7
T10
TXDP1
D12
SIMCLK
F17
SIMIO
E14
SIMPWR
D11
SIMRST
H14
SCL1
L16
SCL2
H16
SDA1
G14
SDA2
U200
E17
VDED0
D13
VDED1
E11
VDED2
D14
VDED3
E15
VDED4
D17
VDED5
E16
VDED6
D15
VDED7
C17
VDED8
D16
VDED9
C18
VDED10
C15
VDED11
C16
VDED12
B18
VDED13
A17
VDED14
B17
VDED15
B16
VDEEOF_CLK27M
B15
VDERD
A16
VDEWR
T4
OE_R_W
V2
WE_E
A13
USBDM
A12
USBDP
B12
USBGNDA
B14
USBID
C14
USBRREF
C12
USBVBUS
C10
VDECS1
D10
VDECS2
C9
VDED_C
U6
IN
V6
IP
U5
QN
V5
QP
F2
RESET
E10
RSTBB
D7
RSTEXT
H2
TRST
E8
CLK32I
D8
CKITST
L3
RTCK
J3
TCK
F1
TDI
L2
TDO
H3
TMS
V8
MCLK
B10
MCLKSEL
K3
JSEL
C219
V14
VREF
B8
FSC
A10
DCL
A7
DD
A8
DU
10-36
C217
AUX_MIC_N
AUX_MIC_P
MIC_N
MIC_P
Y(0:5)
Y(0)
Y(1)
Y(2)
Y(3)
Y(4)
Y(5)
CAM_PCLK
CAM_MCLK
H_SYNC
TP_VSYNC
V_SYNC
TP_CS201
CS1n_RAM
CS4n_NAND
CS0n_FLASH
KEY_COL(0:4)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
KEY_ROW(0:4)
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)
VDD_IO_LOW_1.8V VDD_CAM_2.8VE
RF_CLK
RF_DATA
RF_EN
MOD_STANDBY
BAND_SEL
PON_PA
V_CORE_CTL
PON_3587_SYNTH
TXD1
SIMCLK
R204 R205
SIMIO
SIMRST
LD(0:15)
LD(0)
LD(1)
LD(2)
LD(3)
LD(4)
LD(5)
LD(6)
LD(7)
LD(8)
LD(9)
LD(10)
LD(11)
LD(12)
LD(13)
LD(14)
LD(15)
LCD_FLM
LCD_RD
LCD_WR
OEn
WEn
USB_DM
USB_DP
R209
VBUS_DETECT
LCD_CS
LCD_RS
RX_TX_IN
RX_TX_IP
RX_TX_QN
RX_TX_QP
RSTEXTn
RSTON
RSTEXTn
TRSTn
32KHz_DIGIT
VDD_IO_LOW_1.8V
RTCK
TCK
TDI
TDO
TMS
R210
D_REF_CLK
1K
FSC
DCL
DD
DU
R206 R207
SCL
CAM_SCL
SDA
CAM_SDA