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Flow Chart of Troubleshooting
9-6
C349
W5
RESOUT_N_EBI1
W14
XMEM2_CS_N0
1
V4
XMEM1_CS_N0
V5
XMEM1_HWAIT_N
V2
OE1_N
U5
XMEM1_CS_N2
1
M4
SDRAM1_CLK_EN
K8
XMEM1_LWAIT_N
H13
TRK_LO_ADJ
G12
RESOUT_N
G13
RESIN_N
G1
ROM1_ADV_N
E11
TX_ON
E13
TX_AGC_ADJ
B15
SLEEP_XTAL_OUT
AE6
OE2_N
0
AB14
XMEM2_CS_N1
0
AA1
ROM1_CLK
A15
SLEEP_XTAL_IN
TP_TX_AGC_ADJ
TP_SLEEP_CLK_OUT
R327
R329
SDRAM_CLK
RESET_N
RESET_OUT_N
MV_CS_N
SDRAM_RAS
SDRAM_CAS
SDRAM_CKE
NAND_CE
OE2_N
SLEEP_XTAL_IN
SDRAM_CS0
TRK_LO_ADJ
RF_ON
A6
00
C316
C319
C320
C324
8
2
3
C
C329
0
3
3
C
1
3
3
C
2
3
3
C
6
3
5
C
8
3
5
C
C541
C543
C545
7
4
5
C
8
4
5
C
C550
C55
3
C554
C555
0
0
1
0
C602
C603
C607
C620
C621
C624
C630
7
0
7
C
8
0
7
C
9
0
7
C
0
1
7
C
2
1
7
C
3
3
7
C
4
3
7
C
5
3
7
C
D6
02
0
0
7
D
0
0
7
C
D
H
MV
_C
S_N
MV
_IN
T
OE
600
2
3
3
R
R520
2
2
5
R
7
2
5
R
9
2
5
R
R614
R616
R617
R622
R623
R630
3
3
5
3
5
0
7
R
6
3
7
R
3
0
4
A
T
TA701
0
0
3
0
3
P
T
5
0
3
P
T
TP306
TP307
TP
308
9
0
3
P
T
0
0
6
P
T
1
0
6
P
T
2
0
6
P
T
TP603
4
0
6
P
T
U41
0
8
0
5
U
1
0
6
U
UC
P60
0
0
0
3
E
M
U
WE
600
Summary of Contents for SGH-F490
Page 79: ...8 PCB Diagrams 8 1 1 Main top ...
Page 80: ...PCB Diagrams 8 2 2 Main bottom ...
Page 103: ...www s manuals com ...