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8.1 No Power
When the power button is pressed, nothing happens ,power indicator does not light up.
VCC_P+
P9
VCC_P+
J20
1
4
2
3
C250
C249
JACK-4P
GND
220P
10U
GND
VCC_3VSB
R426
100K
Q55
D
S
2N700/NA
A
BT_RECORD#
POWER SOURCE CPU CORE 1.75V
VCC_IN
L13
U25
R102
10UH
1M
5
1
VIN
SW
5%
R138
ITH/RUN
4
C
4.02K/1%
ITH/RUN
Q23
R103
D
B
2
3
S
5.1K
GND
VFB
2N7002
5%
R141
E
LTC1701
C139
D27
10K/1%
330P
M1FS4
VOUT= 1.25 * ( 1 + 4.02K / 10K )=1.7525
VCC_3VSB
Q16
S
C171
IRLML6402
G
0.1U
SA_PWR_EN#
Barracuda PDA Maintenance
D15
Q43
A
K
S
U48
R404
M1FS4
G
100K
IRLML6402
1%
D34
S
Q13
G
XC61CCC3902MR
M1FS4
R406
D
100K
1%
IRLML6402
C197
0.1U
GND
VCC_3VSB
VCC_3VSB
R2
R3
100K
1M
COLD_BOOT#
DISCHARGE_COLD_BOOT#
Q3
C
C
C198
D
C37
B
B
0.1U
S
E
2N7002
10U
E
VIN_CONTROL#
P14
VCC_CORE
20%
U3
C138
C137
+
47U
0.1U
SA1110
1%
16V
6.3V
Microprocessor
1%
VCC3
To next
Page
VCC3 SOURCE
C255
C173
0.1U
1U
P11
R420
2K
To next
VCC_IN
Page
D
POWER SOURCE 3V STAND-BY
VCC_IN
P13
1
VIN
VOUT
U29
C229
C150
AME8815AEGT330
47U
47U
BAT_IN
6.3V
6.3V
R411
100K
Q19
SA_BATT_FAULT
P3
D
S
C238
G
1U
IRLML6402
SA_PWR_EN
VCC_3VSB
Q54
VCC_3VSB
R244
100K
Q22
Q17
C
R286
2N7002
100K
D
B
S
E
BACK_3V
P15
D2
VCC_3VSB
R42
M1FS4
Q49
1K
5%
IRLML6402
3
D
S
C133
BT1
C237
+
G
+
C148
47U
100U
10U
+80-20%
ML1220T13
BACK_DET
BACK-UP BATTERY CIRCUIT
6
C+
VOUT
BK_VCC
U26
5
VIN
GND
C132
4
SW8
C-
SHDN
1U
LTC1754_3.3V-SOT26
1
BK_VCC
2
PROTECT
C228
10U
VCC_3VSB
VCC_IN
R380
0
3
U39
VCC_3VSB
C185
1U
R285
VCC_3VSB
R332
2
1
100K
100K
Q53
S
G
D
S
G
SW7
D
IRLML6402
R424
ABC2133P2
100K
BAT_FAULT_IRQ#
J15
P6
EXT_BAT_DET
R262
R261
10
100K
Q7
G
BAT_IN
D
S
IRLML6402
D16
External
M1FS4
Rocketeer Conn
BATT_CON
VCC_3VSB
P14
Q52
1
D
S
IRLML6402
C135
2
G
10U
3
R378
VCC_3VSB
0
VCC_3VSB
R414
100K
VCC_P+
R415
BACK_DET#
C
100K
D
Q50
B
S
2N7002
C
E
Q51
D
B
SW9
S
2N7002
R416
E
100K
ABC2133P2
VCC_P+
VCC_IN
VCC_IN
VCC_CORE
VCC_3VSB
VCC_3VSB
VCC3
120
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