ViewSonic PJ870 Service Manual - Page 52

Location, Connector, Keypad

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1VIINVjAt' 331A113S PJ870 5-6 Key Pad Board 5-6.1 The Location of Connector JP1 • 5-6.2 JP1 : Keypad Connector Pin# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Signal Name +3.3V IRDAT 1 LED 1 . LED 2 i LED 3 I LED 4 I LED 5 I LED 6 1 GND 1 KEY I KEY 2 KEY 3 GND 1 KEY 4 KEY 5 GND Function 3.3V IR Data LED Indication LED Indication LED Indication LED Indication LED Indication LED Indication Ground Read Key Read Key Read Key Ground Read Key Read Key Ground ViewSonic Corporation [ 5-171 Confidential - Do Not Copy

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PJ870
5-6
Key
Pad
Board
5-6.1
The
Location
of
Connector
•
5-6.2
JP1
:
Keypad
Connector
JP1
Pin#
Signal
Name
Function
1
+3.3V
3.3V
2
IRDAT
1
IR
Data
3
LED
1
.
LED
Indication
4
LED
2
i
LED
Indication
5
LED
3
I
LED
Indication
6
LED
4
I
LED
Indication
7
LED
5
I
LED
Indication
8
LED
6
1
LED
Indication
9
GND
1
Ground
10
KEY
I
Read
Key
11
KEY
2
Read
Key
12
KEY
3
Read
Key
13
GND
1
Ground
14
KEY
4
Read
Key
15
KEY
5
Read
Key
16
GND
Ground
1VIINVjAt'
331A113S
[
5-171
ViewSonic
Corporation
Confidential
-
Do
Not
Copy