Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
AT&T
Office

Model # 3155 Official AT&T computer

Here are the diagrams and repair parts for Official AT&T 3155 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 15 parts  |
Cont-ide I/o 519-0000150

#NI

All parts diagram

Cont-ide i/o

Part #519-0000150

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

1.4mb Flpy 519-0000146

#NI

All parts diagram

1.4mb flpy

Part #519-0000146

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

Mouse Ser 519-0000158

#NI

All parts diagram

Mouse ser

Part #519-0000158

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

Grap W/512k 519-0000148

#NI

All parts diagram

Grap w/512k

Part #519-0000148

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

Pcb-16b Aud 519-0000154

#NI

All parts diagram

Pcb-16b aud

Part #519-0000154

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

Matherbd 519-0000195

#NI

All parts diagram

Matherbd

Part #519-0000195

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

Cd Rom 519-0000153

#NI

All parts diagram

Cd rom

Part #519-0000153

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

486-sa25 006-2006810

#NI

All parts diagram

486-sa25

Part #006-2006810

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

340mb Ide Dr 519-0000225

#NI

All parts diagram

340mb ide dr

Part #519-0000225

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

Keyboard 519-0000157

#NI

All parts diagram

Keyboard

Part #519-0000157

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

Repair guides for chest freezers

How to replace a freezer compressor start relay

How to replace a freezer compressor start relay

The compressor start relay starts the compressor. If the compressor won’t start, follow these steps to replace a defect...

Read more
Repair difficulty
Time required
15 minutes or less
How to replace a freezer temperature control thermostat

How to replace a freezer temperature control thermostat

The cold control thermostat regulates the freezer temperature. A defective cold control thermostat can prevent the compr...

Read more
Repair difficulty
Time required
15 minutes or less
How to replace a freezer lid gasket

How to replace a freezer lid gasket

The lid gasket prevents air and moisture from entering the freezer when the lid is closed. Follow these steps to replace...

Read more
Repair difficulty
Time required
30 minutes or less

Effective articles & videos to help repair your office

Office and smart products articles | Sears PartsDirect

View all
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....

Read more
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....

Read more
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....

Read more

Parts & More