MiTAC 8355 User Manual
8355 N/B MAINTENANCE
8355 N/B MAINTENANCE
124
When the power button is pressed, nothing happens ,power indicator does not light up.
+VMAIN_2951
8
2
7
6
1
VDD5_SW
From H8
From H8
VDD5_SW#
To H8
To H8
Q513
DTC144WK
D24
RLZ5.6B
C322
10U
Q32
SI2301DS
H8_AVREF1
VDD5
C314
4.7U
R220
100K
100K
Q517
SI2301DS
+5VS
F503
FUSE_1206
LP2951-02BM
U508
2
1
3
D/VMAIN
Power In
PD1
PR4
226K
PR10
33K
PQ4
2N7002
PJ502
BATT
From P29
From P29
8
PF502
TR/SFT-10A
PC551
0.1U
0.1U
PL8
PL7
PR534
301K
PC543
0.1U
1
1
PR5
4.7K
PR7
.02
PR3
470K
PR1
100K
100K
PQ1
2N7002
PR2
1M
3
Battery In
G
D
S
PQ2
SI4835DY
G
PQ5
DTC144WK
2
1
3
D
S
PR6
4.7K
PQ3
SI4835DY
PQ11
SI4835DY
PQ10
SI4835DY
S
D
2
3
1
6 7 8
5
G
4
PD5
BAV70LT1
PD3
BAV70LT1
+VMAIN_2951
S
D
2
3
1
6
7
8
5
G
4
ADEN#
To H8
To H8
LEARNING
To H8
To H8
8.1 No Power:
5
4
3
PR501
10
10
PC501
1U
1U
6
OUT
VCC
RS+
RS-
I_LIMIT
To H8
To H8
PU501
MAX4173
MAX4173
2
S
D
2
3
1
6
7
8
5
G
4
PC1
1000P
PR9
100K
ADINP
To P29
To P29
PC65
0.01P
0.01P
PC64
1000P
PR30
.04
PR29
.04
PU504
MAX4377
6
VDD5
5
PL9
PC63
0.01U
0.01U
BAT_V
To H8
To H8
7
PR538
10
PR539
10
PC567
1U
PC29
1U
I_DISCHG
From H8
From H8
I_CHG
From H8
From H8
D22
UDZ5.6B
BATT_DEAD
From H8
From H8
PR42
100K
100K
D_VMAIN
1.25V
PR43
787K
787K
7
VDD5S
PQ15
SCK431
SCK431
8
PU10B
LMV393M
PR41
4.7K
4.7K
5
6
PR44
100K
100K
PC76
0.1U
0.1U
4
PC79
1U
BAT_T
To H8
To H8
VDD5
PR546
4.99
4.99
PR547
20K
20K
PC553
0.1U
5
PR566 0
PR565 0
PR65 0
3
4
BAT_C To H8
BAT_D To H8
BAT_D To H8
P
30
P
26
P
31
PR533
100K
PJ501
PL3
PF1
PC10
0.1U
0.1U
PL1
PC20
0.1U
0.1U
PD4
RLZ24D
PL2
4
S
D
2
3
1
6 7 8
5
G