Easykey™ Display - Graco ProMix Auto Service Parts

EasyKey™ Display
• Updating Software
• Replacing Power Supply Board
• Replacing Power Supply Fuses
If you need to replace the EasyKey
display backlight, or keypad, replace with Display
Kit 253025.
CAUTION
To avoid damaging circuit board when servicing, wear
grounding strap on wrist and ground appropriately.
Updating Software
There are 2 ways to update software:
• Programmed software chip 249943 or Kit 249989.
Kit includes display board software chip, chip extrac-
tor tool, and grounding wrist strap.
• Follow Installing New Software Chip procedure.
311189C
Installing New Software Chip
1.
2.
3.
™
display board,
F . 14
IG
4.
5.
6.
Follow Before Servicing
Unlock and open EasyKey™ door with its key.
Remove display board chip (C - F
removal tool.
a.
Press removal tool into flash chip socket open
holes.
b.
Squeeze the tool to grip the chip and carefully
pull it straight out of the socket.
Align beveled corner of new chip with beveled
corner of socket and press chip into place. Make
sure the pins are not bent or touching.
Close and lock EasyKey™ door with key.
Turn EasyKey™ power on to test circuit boards.
Service
procedure, page 17.
. 14) with
IG
C
19