Samsung SGH-F300 Service Manual page 25

A(0:25)
A(0) B7 A_A0
A(1)
C8
A(2) D8
A(3) A6
A(4)
C6 A_A4
A(5)
C5
A(6)
D7 A_A6
A(7) E7
A(8)
C4 A_A8
A(9) C2
A(10) A3 A_A10
A(11)
B3
A(12)
B1 A_A12
A(13)
D6
A(14) D5 A_A14
A(15) D3
A(16) E8 A_A16
A(17)
F8
A(18) E6 A_A18
A(19)
D2
A(20) E4 A_A20
A(21)
E3
A(22)
F5 A_A22
A(23) F4
A(24)
F3 A_A24
F2
D(0:15)
D(0)
A8 A_D0
D(1) E9
D(2)
F9 A_D2
D(3)
G10
D(4)
G11 A_D4
D(5)
F11
D(6) E11 A_D6
D(7)
G12
D(8)
D11
D(9) E12
D(10)
C12 A_D10
D(11)
A12
D(12)
F12 A_D12
D(13) D12
D(14) E13 A_D14
D(15)
D13
TP_WEN D14 A_WEN
CP_WEN
TP_OEN
B14
CP_OEN
E14 PIO30_WAITN
H14
FLASH_RESET
TP_ROM1_CS A14 A_CS0N
ROM1_CS
C15
ROM2_CS
G14
J14
TP_RAM1_CS
D15 A_CS4N
RAM1_CS
C16
TP_MV_CS F15 A_CS6N
MV_CS
B17
H16 A_BE0N
LOWER_BYTE
A17
UPPER_BYTE
SIMCLK
SIMDATA
SIMRST
USB_SUSP
USB_DET
D_SCL_HPE
USB_VPO
USB_VMO
USB_OEN
USB_DATA
UP_SCLK
UP_SDO
UP_SDI
UP_CS
USB_ON
AMP_EN
D_SDA_HPE
BT_CTS
BT_TXD
BT_RXD
BT_RTS
BT_EN
RADIO_SEL
VIB_EN
SDS_TXD
SDS_RXD
KEY_COL(0:4)
PSW1_BUF
KEY_ROW(0:4)
SAMSUNG Proprietary-Contents may change without notice
HP_CORE_1.57V
C302 C303
C305
C311
A_A1
A_A2
A_A3
A_A5
A_A7
A_A9
A_A11
A_A13
A_A15
A_A17
A_A19
A_A21
A_A23
PIO35_A_A25_BOOTSEL
A_D1
A_D3
A_D5
A_D7
A_D8
A_D9
A_D11
A_D13
A_D15
A_OEN
FLASHRSTN
A_CS1N
A_CS2N
A_CS3N
A_CS5N
A_CS7N
A_BE1N
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)
R326
R327
This Document can not be used without Samsung's authorization
HP_CORE_1.57V HPEIO_1.8V
C306 C307 C308 C309 C310
CKO_IACK
IOBIT1_PIO06
IOBIT0_PIO05
SPFS1_PIO15
SPTXD1_I2SD_PIO16
SPRXD1_PIO17
SPCLK1_PIO18
UCP300
CPTSTSTOP_CKO
ATDO_PWM2
ATDI_RTS1
ATCK_CTS1
ATMS_PIO45
PIO31_IRQ6 P12
PIO00_IRQ5 P16
C317 C318
OSC300
R325
3-5
Flow Chart of Troubleshooting
VRTC_1.5V
C304
CLK13M_HPE
TR_RST
TDO T12
TDI V14
U14
TCK
N12
N11
HOLD
V12
KEY_EL_ON
N15
PCM_SYNC
N16
PCM_IN
M17
PCM_OUT
M18
PCM_CLK
INT0 T15
DSP_INT
IO W6
DSP_IO
RWN V6
DSP_RWN
P11 DSP_DB(15)
D_D15
N10 DSP_DB(14)
D_D14
D_D13 N9 DSP_DB(13)
D_D12 N8 DSP_DB(12)
D_D11 P9 DSP_DB(11)
DSP_DB(10)
D_D10 P8
R9 DSP_DB(9)
D_D9
DSP_DB(8)
D_D8 T9
D_D7 T8 DSP_DB(7)
D_D6 U8 DSP_DB(6)
DSP_DB(5)
D_D5 V8
D_D4 R8 DSP_DB(4)
DSP_DB(3)
D_D3 T7
R7 DSP_DB(2)
D_D2
DSP_DB(1)
D_D1 T6
D_D0 U6 DSP_DB(0)
R6 DSP_AB(8)
D_A8
DSP_AB(7)
D_A7 N6
V4 DSP_AB(6)
D_A6
DSP_AB(5)
D_A5 T5
D_A4 U4 DSP_AB(4)
V3 DSP_AB(3)
D_A3
D_A2 W3 DSP_AB(2)
D_A1 W2 DSP_AB(1)
DSP_AB(0)
D_A0 V1
TEST3 V16
T14
TEST2
GND
TEST1 U15
R304
T17
TDO
T13
CP_TDO
TDI
L5
CP_TDI
TCK
M4
CP_TCK
K12 TMS
CP_TMS
R_RW
CARD_INS
IRQ4
P18
IRQ3
P17
MV_INT
IRQ2 M19
JACK_IN
IRQ1
M16
INTRQ
PIO47 J16
MODE_SELECT
R14
PIO34
USB_CON
U18
PIO33
LCD_CON
CHG_OFF
EAR_SWITCH
MVCORE_ON
MP3_ENABLE
MIC_AMP_EN
DAC_RESET
SUB_BATT_SW
XOENAQ
PWR_KEEP
CLK32K
RTCALARM
CHG_DET
MP3_SDA
MP3_SCL
CF
HPEIO_1.8V
R323 R324
D_SCL
D_SDA
MV_RST
VBUS_GPIO
FLIPPER_USB
DSP_DB(0:15)
DSP_AB(0:8)