Extron Electronics System 5 IP Series User Guide - Manual (Page 122)

Firmware Updates, cont’d
System 5 IP Switchers • Firmware Updates B-6
PRELIMINAR
Y
4. Locate chip U8 on the circuit board, as shown in the following illustrations.
Align
Notches
U8
100-240V 1.3A
50-60Hz
+ _
LEFT
+
RIGHT
_
2 1 C C
4 3 C
6 5 C
Tx Rx G G
S G S G S G S G
G
Ps
+V
+V CM IR SCP
R
Y/C
G
Y
V
H
VID
Y/C
VID
Y
R/VID
G/Y
B/C
H
V
C
V
H
R/VID
G/Y
B/C
INPUT 1
INPUT 3
INPUT 4
INPUT 2
R
CM/IR/SCP
RS-232
PROJ CONT
AUDIO
RELAYS
IR/SERIAL OUT
E
C B
B
D
A
A
L LINEOUT R
L PREAMP R
L 1 R
L 2 R
AMPLIFIED OUT 4/8 ohm
CONFIG/RS-232
LAN
OUTPUT
A
L 3 R
L 4 R
B
C D
Locating the FPGA chip at U8, and aligning the PLCC chip puller tool
with firmware chip slots
5. After you are electrically grounded, align the hooks of a PLCC IC puller tool
with the slots located in opposite ends of the firmware chip.
6. Insert the hooks into the slots, and squeeze the tool gently to grasp the chip.
7. Pull the chip straight out of the socket, and set it aside.