Chamberlain 050DCTB Replacement

Installation
1
Before you begin
Your garage door opener has an internal gateway located on the receiver logic board. After installing the new receiver logic board, use the myQ
garage door opener to your myQ ® account. The products illustrated in the instructions are for reference. Your product may look different. The logic board fi rmware has been updated. The update provides
a new Obstruction Notifi cation that signals when the opener senses resistance, such as an obstruction or other binding in the door and rail system. The door will stop or reverse to open limit and the
opener will beep and the lights fl ash 5 times.
To prevent possible SERIOUS INJURY or DEATH:
• Disconnect ALL electric and battery power BEFORE performing ANY
service or maintenance.
To prevent damage to the receiver/logic board, DO NOT touch printed
circuit board of replacement receiver/logic board during installation.
ALWAYS wear protective gloves and eye protection when changing the
battery or working around the battery compartment.
WARNING: This product can expose you to chemicals including
lead, which are known to the State of California to cause cancer or
birth defects or other reproductive harm. For more information go
to www.P65Warnings.ca.gov.
2
Remove the receiver logic board
2.1 Disconnect the wires from the quick-connect terminals
(A). Disconnect any wires from the lock terminals.
Remove the receiver logic board end panel from the
garage door opener.
A
Lock
Terminals
To insert or remove the wires from the terminal,
push in the tab with a screwdriver tip.
1.1 Remove the light lens by pulling
the top side of the light lens
and swing the light lens down.
Squeeze the light lens clips to
remove lens from end panel.
2.2 Unplug the wire harnesses from the receiver logic
board. You may need needle-nosed pliers, to
remove the harnesses.
1
RECEIVER LOGIC BOARD REPLACEMENT
Models 050DCTB and 050DCTBLK
NOTE: 050DCTB replaces 050DCTWF and 050DCTBLK replaces 050DCTWFLK.
® serial number found on the provided label to add your
1.2 To maintain your warranty,
place the provided label
over the existing label
on the end panel of the
garage door opener.
2.3 Remove the receiver
logic board from the
end panel by removing
the 2 screws and
releasing the 2 clips.
Clips
1.3 Disconnect electrical and battery
power (if applicable) to the
garage door opener.
Screws
Wire clip