LiftMaster 41AS050R1M

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This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.
New Device
Preliminary Information
Release Year 1980
Leak Risk Medium
Batteries None
Mounting Technology Through Hole, SMD, BGA, Sockets
Capacitor Types Aluminum Electrolytic, Tantalum, Ceramic, Polymer
Destructive Entry No

LiftMaster (Chamberlain) Garage Door Opener logic board.

Known Issues

Remote control does not work (or works intermittently)

Causes

  • Cracked solder joints on connectors
  • Failed capacitor on power supply (PSU) board.

Solutions

  • Reflow connector solder joints
  • Replace capacitors

Disassembly Notes

Warnings or tips to disassemble the device

Original Parts

Logic Board

14LG626B

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C1 1 47 µF 10 V Through-hole 5mm 8mm 3mm 105 °C Electrolytic Leaguer ST1
C2,C4,C6 3 4.7 µF 50 V Through-hole 6mm 11mm 3mm 85 °C Electrolytic Leaguer RCL
C3,C5 2 22 µF 10 V Through-hole 5mm 7mm 3mm 105 °C Electrolytic Leaguer ST1

Power Supply (PSU) Board

14LG574V

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Height Lead Spacing Temp Type Brand Series
C204 1 330 µF 35 V Through-hole 10mm 12mm 5.5mm 85 °C Electrolytic Leaguer RS2

Replacement Parts

Basic PCB Name

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

Related Links

References