ViewSonic VX500 Service Manual - Page 17

Circuit, Description

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5. CIRCUIT DESCRIPTION Main Board Position F . vPPPPP4PFC?..Al P1 CONB8 CONB5 J, OE- w. r. P5 P4 s. CONB24 P2 P6 CND1 JB1 Pin # 1 2 3 4 Signal Name 5V TXD RXD GND P1: RS232 Pin Header Function +5V Power supply TXD (to PC) RXD (to PC) Ground ViewSonic Corporation 14 Confidential - Do Not Copy VX500-1

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5.
CIRCUIT
DESCRIPTION
Main
Board
Position
F
.
vPPPPP4PFC?..Al
P5
P1
CONB8
CONB5
OE
-
J,
r.
w.
CND1
P6
P1:
RS232
Pin
Header
P4
s.
JB1
P2
CONB24
Pin
#
Signal
Name
Function
1
5V
+5V
Power
supply
2
TXD
TXD
(to
PC)
3
RXD
RXD
(to
PC)
4
GND
Ground
ViewSonic
Corporation
14
Confidential
—
Do
Not
Copy
VX500-1