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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”.

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

Model diagram and schematic

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Showing 10 of 15 parts  |
340mb Ide Dr 519-0000225

#NI

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340mb ide dr

Part #519-0000225

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

Matherbd 519-0000195

#NI

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Matherbd

Part #519-0000195

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

Simm 1x9x70 006-3502981

#NI

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Simm 1x9x70

Part #006-3502981

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

Keyboard 519-0000157

#NI

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Keyboard

Part #519-0000157

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

M 2400/9600 519-0000156

#NI

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M 2400/9600

Part #519-0000156

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

Pcb-16b Aud 519-0000154

#NI

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Pcb-16b aud

Part #519-0000154

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

Speaker Extension 519-0000155

#NI

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Speaker extension

Part #519-0000155

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

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

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