MiTAC E-8590 - 8.6 Keyboard (K;B) Test Error

179
LCD PC E
LCD PC E
-
-
8590 MAINTENANCE
8590 MAINTENANCE
8.6 Keyboard (K/B) Test Error
Symptom: Error message of keyboard failure is shown or any key does not work.
+5VDUAL
Internal K/B
connector
1
P10
KBCK
KBD
BLOCK_REMOT
SUSB#
L37
600Z/100M
2
3
U18
South Bridge
VT8235_7
P10
4
6
L38 600Z/100M
C4
100P
C5
100P
C6
100P
J25 J501
J1
2
KBD_CLK
20
3
21
KBD_DATA
428
BLOCK_REMOT
5
PWRON#
25
627
SUSB#
L36
120Z/100M
RESET
36
+VDD5
+SWTCH_P
R1
0
1
IN
OUT
2
3
29
COVER_SW#
U1
A3212ELH
PC7
C5
10U
C6
0.1U
HT82K68E
U3
10
IR_OUT
26
KI[0,7]
KO[0,17]
+5VS
R4
680
R6
680
R2
680
D2 CL-190G
D3 CL- 190G
D1 CL-190G
18
19
34
CAP_LOCK#
NUM_LOCK#
SCROLL_LOCK#
I/O BOARD
L1
120Z/100M
+VDD5
D4 RLS4148
R7 47K
C7
0.1U
35
C7
0.1U
P27
L55
600Z/100M
+5VS
L54
600Z/100M
L54
600Z/100M
C12
1000P
C14
1000P
+5VDUAL
L53
BEAD_600Z/100M
J1
1
2
3
PWRON#
5
10
11
C13
1000P
9
12
P10
IR_ OUT
Keyboard