Microcontroller (Eprom - Erasable Programmable Read-Only Memory) - Cafection Encore Ground Service & Installation Manual

SERVICE & INSTALLATION MANUAL for Cafection's Encore Ground
www.cafection.com
9.5.2

Microcontroller (EPROM - Erasable Programmable Read-Only Memory)

When the flash card is swapped for an upgrade, the microcontroller often needs to be replaced.
It is important that the flash card version matches the microcontroller version.
Example: Flash card version 2.2.4 MUST BE USED with microcontroller V2.2.
Make sure all data have been collected from the counters before replacing
the microcontroller. Otherwise, all data will be reset and lost.
The EPROM is a statically sensitive device and should be handled by the edges.
Immediately after removal, the old EPROM should go directly into the plastic bag.
Tool required
A PLCC extractor (as shown below) is needed in order to remove the EPROM. This tool is
provided with the EPROM.
DO NOT ATTEMPT TO PRY THE CHIP OUT OF THE SOCKET WITHOUT
THIS TOOL, AS IT WILL DAMAGE THE SOCKET.
To remove microcontroller
1. Turn the machine off and unplug it from the outlet.
2. Open the machine's door.
3. Using a #2 Phillips screwdriver, remove the
mainboard protection panel. Keep the screws.
4. Locate the EPROM on the mainboard (the small black
square part in the middle of the board with a white
label - see illustration below).
5. Using the PLCC extraction tool, carefully insert the
prongs in the top right and bottom left corner slots of
the casing and grab the EPROM.
6. Gently pull the EPROM out of the socket.
To replace microcontroller
1. Carefully align the notched corner of the EPROM with
the notched corner of the empty socket.
2. Make sure that all contacts are aligned with the
appropriate slots in the socket.
3. Push the EPROM firmly until the top of the
chip is flush with the top of the socket.
4. Re-attach the board protection panel.
5. Close the door, plug the machine in and turn
it on.
6. At startup, make sure the screen indicates the
EPROM version number (as shown beside).
ENCORE GROUND Rev. 0 2017-04
800-561-6162
PLCC
extractor
Notch
Version #
Slot
Slot
Microcontroller
Socket
73