Prestigio CAVALIERE 141 Technical & Service Manual page 113

Prestigio Cavaliere 141
8.7
Keyboard (K/B) Touch-Pad (T/P) Test Error
Symptom:
Error message of keyboard or touch-pad failure is shown or any key does not work.
P
23
ISA_SA2
IOR#
U519
IOW#
Super I/O
IRQ1
PC87393
IRQ12
ISA_SD [0:7]
VDD5
R693
R698
10K
10K
H8_KBCS#
H8_MCCS#
9 10
U518
8
ISA_KBCS#
74CBTD
11
P
3384
26
ISA_MCCS#
KBD_US/JP#
93
P
26
KI7
96
97
53
U13
54
Key Board
Controller
H8/F3437
+5V
T_CLK
23
95
T_DATA
18
98
3 2
R171 1M
SW_RIGHT
X2 16MHz
1
2
C241 C235
22P 22P
R101
0
KI [0:7]
KI6
KO [0:15]
SW3
SCRL_UP
P
SW7
24
SCRL_DN
SW5
SCRL_LEFT
SCRL_RIGHT
SW6
F3
0.5A/POLYSW
+5V
2 2
R175 R174
4.7k 4.7k
L20
1 1
L522
SW2
30V/.1A
SW_LEFT
SW4
30V/.1A
112
Technical Service Manual
J4
P
25
26
KO0
KO1
L19
J5
600Z/100M
1
P
24
12 , 11
10 , 9
R575
0
7 , 8
R585
0
5 , 6
SW2
CP504
Touch-Pad Module
47P*4
SW4