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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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7-5
+VDD_IO_LOW_1.9V
+VDD_IO_LOW_1.9V
+VDD_IO_LOW_1.9V
R305
R308
_RDYRO/WAITU
_RESET
C6
_UBU
F5
D6 _WEOU
D4
_WER
_WPR
D3
_CS1U
_CEO G4
_CER
H3
_LBU
F4
G5 _MRSU
_OEO
J1
K4
_OER
_OEU
H6
C2
VCCQR
K6
J4 VCCQU
VCCR
L4
D5 VCCU
VCCU
K5
VSS1
J5
E5
VSS2
C4 _AVD
H2
C3
NC
H5
NC
1
NC
2
NC
F2
NC
NC G3
VCCO
C5
VCCO
L5
L6
J7
DQ5
L7
DQ6
DQ7
K8
K1
DQ8
DQ9
K2
INTO
C7
E4
NC
L3
DQ10
DQ11
J3
J6
DQ12
DQ13
K7
J8
DQ14
DQ15
L8
DQ2
J2
K3
DQ3
DQ4
DNU
A8
B8
DNU
DNU
M1
N1
DNU
DNU
M8
N8
DNU
DQ0
L1
L2
DQ1
C1
A7
F3
G7
A8
A9
D7
E3 ACCR
CLK
H4
DNU
A1
B1
DNU
G2
E6
A20
A21
G6
G8
A22
H7
A23
A3
F1
E1
A4
D1
A5
A6
C8
A13
D8
A14
E8
A15
F8
H8
A16
A17
E2
D2
A18
A19
F6
A2
UME300
H1
A0
G1
A1
E7
A10
A11
F7
A12
NC 5
VCC 6
4
Y
U305
A
2
GND
3
1 NC
+VDD_GSM_CORE_1.9V
C301
+VDD_IO_LOW_1.9V
+VDD_IO_LOW_1.9V
C302
TP302
C323
C324
+VDD_IO_LOW_1.9V
R315
TP301
+VDD_IO_LOW_1.9V
+VDD_IO_LOW_1.9V
CS1n_RAM
CS0n_FLASH
OEn
HA(0)
RSTEXTn
CS2n_FLASH
HD(5)
HD(6)
HD(7)
HD(8)
HD(9)
HD(10)
HD(11)
HD(12)
HD(13)
HD(14)
HD(15)
WEn
CLKBURST
HA(5)
HA(6)
HA(7)
HA(8)
HA(9)
HA(10)
HA(11)
HA(12)
HA(13)
HA(14)
HA(15)
HD(0:15)
HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
BE1n
WEn
HA(18)
HA(16)
HA(23)
HA(24)
HA(19)
HA(22)
HA(21)
HA(20)
HA(17)
HA(1:24)
HA(1)
HA(2)
HA(3)
HA(4)
ADVn
CS4n_NAND
OEn
WAITn
+VDD_IO_HIGH_2.9V
2
A
3
GND
NC
5
VCC
6
VCC1
1
Y
4
U202
+VDD_IO_LOW_1.9V
LCD_RESET
RSTON