Laser
Office

Model # 128EX Official Laser computer

Here are the diagrams and repair parts for Official Laser 128EX computer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 17 parts  |

Ic Bios 27-0473-46

#NI

All parts diagram

Ic bios

Part #27-0473-46

The manufacturer no longer makes this part, and there's no substitute part

Midi Cable 80-2419-00

#NI

All parts diagram

Midi cable

Part #80-2419-00

The manufacturer no longer makes this part, and there's no substitute part

Sys Bd 52-2366-00

#NI

All parts diagram

Sys bd

Part #52-2366-00

The manufacturer no longer makes this part, and there's no substitute part

Midi Bd 52-2368-00

#NI

All parts diagram

Midi bd

Part #52-2368-00

The manufacturer no longer makes this part, and there's no substitute part

Drive 3.5" 80-2320-01

#NI

All parts diagram

Drive 3.5"

Part #80-2320-01

The manufacturer no longer makes this part, and there's no substitute part

Int Flpy 52-2204-02

#NI

All parts diagram

Int flpy

Part #52-2204-02

The manufacturer no longer makes this part, and there's no substitute part

Pcb Mother 50-2284-00

#NI

All parts diagram

Pcb mother

Part #50-2284-00

The manufacturer no longer makes this part, and there's no substitute part

Keyboard 52-2284-18

#NI

All parts diagram

Keyboard

Part #52-2284-18

The manufacturer no longer makes this part, and there's no substitute part

Rom 6.0 27-0473-45

#NI

All parts diagram

Rom 6.0

Part #27-0473-45

The manufacturer no longer makes this part, and there's no substitute part

Mb W/case 52-2284-15

#NI

All parts diagram

Mb w/case

Part #52-2284-15

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your office

Office and smart products articles | Sears PartsDirect

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What does the Amazon Fire Stick Lite do?

What does the Amazon Fire Stick Lite do?

Learn what the Amazon Fire Stick Lite video streaming device does.…