Programming instructions
6-22
2005
E
5V_SWITCHED
D
D
D
PLATED
SYSPWR
D
D
D
D
D D
D
D
D
D
5V03V3
D
3V3_LED
5V0
D
3V3
3V3
3V3
D D D
GND
VCC
GND
VCC
GNDVCC
±5%
0R0
95620
±1%
95965
15.8K
±1%
95965
15.8K
±1%
95965
15.8K
D D D
D
NDT455N
S
G
D
PLATED
±5%
D
D D
D
5V_SWITCHED
9002943
CONEC
MTG CLIP
MTG CLIP
D
5V0
SYSPWR
5V0
3V3 5V_SWITCHED3V3_LED
D
D
VREF
VT1
VT2
DGND
VTEMP
OUT2
OUT1
V+
P82B96TD
9002929
RY_SCL
TY_SCL
RX_SDA
TXD_SDA
SX_SDA
SY_SCL
GND
VCC
FH12-24S-0.5SH
9002930
MTG TAB
MTG TAB
D
To external keyboard conn.
GND
GND
GND
SYSPWR
5V_SWITCHED
NC
Heat On at +15C
SYSPWR
3.3V_SWITCHED
3.3V_STANDBY
5V_SWITCHED
TXRX_SDA
TXRX_SCL
KBD_INT_A
KBD_INT_B
32KHZ_RX_A
32KHZ_RX_B
GND
GND
GND
GND
GND
GND
GND
GND
TxRx_SCL
TxRx_SDA
GND
32KHz
GND
NC
Place near internal keyboard connector.
Place near external keyboard connector.
EL_COMMAND
SYSPWR
To PIC Controller
To Suppressor
NC
SYSPWR
NC
EL_COMMAND
3.3V_STANDBY
SYSPWR
5V_SWITCHED
3.3V_SWITCHED
NC
SYSPWR
NC
GND
Keyboard In Det
Keyboard Out Det
BUFF_KBD_INT
5V_ STANDBY
GND
5V_STANDBY
Internal PCB Heater
Heater Element
To PIC Controller
From PIC Controller
Not Populated on Internal keyboard
External Keyboard Components
INTERFACE TO MLB & PCB HEATER
2
1
C23
9007495
1U0
TP128
45
24
21
20
19
5
6
7
8
9
10
4
15
11
12
13
16
14
1
2
3
18
17
22
23
25
26
J1
8
1234
567
97622
100P
10%
50V
CN1
6
5
2
3
1
7
4
8
U2
1
3
2
4
5
6
7
8
U5
95964
LM56BIMMX
21
C20
95621
100N
20%
50V
2
1C30
93187
10N
10%
50V
2
1 C29
93187
10N
10%
50V
2
1 C28
93187
10N
10%
50V
2
1 C26
93187
10N
10%
50V
2
1 C27
93187
10N
10%
50V
BUFF_KBD_INT
12
R36
97296
10K0
±1%
0.063W
INT_KYB_8
TP68
32KHZ
TXRX_SCL
TXRX_SDA
EL_COMMAND
TP83
TP95
TP98
TP121TP120TP116
16V
±15%
100N
97871
C14
5
6
7
8
9
10
3
4
1
2
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
J2
4HDD26PCY99R40X
TYPE=XE0
2
1
C21
9002920
10UF
±20%
25V
2
1
C25
9002920
10UF
±20%
25V
2
1
C24
9002920
10UF
±20%
25V
2
1
C22
9002920
10UF
±20%
25V
TP57 TP124 TP125
TP99 TP122 TP123
TP131 TP85
TP56
2
1
LINK1
23R
1HRT1
3
1
24
Q11
95963
32KHZ_RX_A
32KHZ_RX_B
2
1
R51
2
1
R50
2
1
R49
2
1
R48
R47
95202
100R
63MW
6
5
8
7
2
1
4
3
U7
94724
DS8921AM
4
3
1
2
5
NC7SZ125P5X
9000515
U4
1
3
4
2
5
MSQA6V1W5T2
9000988
DN9
1
3
4
2
5
MSQA6V1W5T2
9000988
DN10
4
3
1
2
5
NC7SZ125P5X
9000515
U6
12
R53
97296
10K0
±1%
0.063W
1
3
4
2
5
MSQA6V1W5T2
9000988
DN8
INT_KYB_10
TP90
R52
93432
3K9
5%
R46
93905
10K0
1%
TXRX_SDA
TXRX_SCL
TP119
TP92
TP91
TP61
16V
±15%
100N
97871
C18
16V
±15%
100N
97871
C10
12
R38
97296
10K0
±1%
0.063W
12
R37
97296
10K0
±1%
0.063W
TP87
1
2 16V
±15%
100N
97871
C17
16V
±15%
100N
97871
C13
16V
±15%
100N
97871
C12
16V
±15%
100N
97871
C11
TP65 TP66 TP67
TP88 TP89
TP93
TP94
16V
±15%
100N
97871
C19
TP109 TP110 TP111 TP112
TP113
KBD_INT_A
KBD_INT_B
EL_COMMAND
1HRT2
TP126 TP127
TP130
TP129
KBD_INT
EL_COMMAND
SDA
SCL
BUFF_KBD_INT
DOC Schematic Keyboard 8525/30
Mike Seguin
D8
1008024
C
APR 26, 2005
DATE
DRAWN
SIGNATURES
DBA
3
1
C
DC
BA
1
2
3
4
2
4
OTHER
PROJ ENG
APPVD
CHKD
TITLE
REV
ECO No.:
REL. DATE
INTERIM REV
SHEET OF
Scale N/A
CODE IDENT. No.
38481
SIZE DRAWING NO.
MISSISSAUGA ONTARIO
PSION TEKLOGIX INC
05-Oct-2005