Controller Board Removal - Dell 3333dn Service Manual

Controller board removal

CAUTION
This product contains a lithium battery. THERE IS A RISK OF EXPLOSION IF THE BATTERY
IS REPLACED BY AN INCORRECT TYPE. Discard used batteries according to the battery
manufacturer's instructions and local regulations.
Warning:
•
Always touch a ground before touching the board.
•
Handle the board carefully by the edges.
•
Never replace the operator panel and controller board without a successful POR in between.
•
Never replace the operator panel and the controller board at the same time. Each card contains the printer
settings. When either of these cards is new, it obtains its settings from the other card. Critical factory
settings are lost when both cards are new and are replaced at the same time.
1.
Remove the screw (A) from the USB port.
2.
Lift the scanner assembly to the raised position. See
page 4-102.
3.
Remove any option cards from the controller board.
4-8
A
"Lifting the Scanner to the up position" on