Unitec POS4000/V2-Wash Select II - Manual (Page 40)

P O S 4 0 0 0
Document Number: POS4007 14
Figure 4. EPROM and Socket
6. Carefully install the new EPROM into the socket. Make sure that the Dimple on
the chip is facing the same direction as it was before (refer to previous drawing).
Also, make sure that pins can be properly inserted into the sockets without
bending. Component legs can be bent to fit sockets as follows:
• Lay the chip on its side with the pins facing away from you.
• Gently rock the chip away from you to bend the pins.
• Lay chip on its other side and rock it away from you.
• Repeat the above steps, alternating sides of the chip until the pins line up in
the socket without forcing the legs to fit.
7. Reconnect the power and printer connections and turn on the unit. As the system
powers up the message “!!SOFTWARE UPGRADE!!” will appear momentarily.
8. After the unit is powered up, you MUST then press the RESET BUTTON to reset
the system.
9. After pressing the reset button, the display will prompt you to press 99 or 55.
Press 55.
10. Reset the system two more times. If your system previously contained standard
version TG648 and above or Unicam version 656 and above, then the codes and
messages should be retained.
11. Replace all screws and plastic cover. Connect all other cables previously
attached.
Document Title: POS4000/V2 WSII Operations Manual