AT&T
Office

Model # 3520D Official AT&T miscellaneous

Here are the diagrams and repair parts for Official AT&T 3520D miscellaneous, 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:

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  • 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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Model diagram and schematic

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Showing 10 of 12 parts  |

H0126038 Pcb-modem 405460072

#NI

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H0126038 pcb-modem

Part #405460072

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

Mem Bd Un 405475484

#NI

All parts diagram

Mem bd un

Part #405475484

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

Vid Proc Un 405460007

#NI

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Vid proc un

Part #405460007

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

Op-port Assy 405547605

#NI

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Op-port assy

Part #405547605

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

H0122182 Cutter Assembly 405547571

#NI

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H0122182 cutter assembly

Part #405547571

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

Pwr Sup Un 405459967

#NI

All parts diagram

Pwr sup un

Part #405459967

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

Rubber Plt 405459785

#NI

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Rubber plt

Part #405459785

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

Thermax Head 405547555

#NI

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Thermax head

Part #405547555

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

Fax Ctrl Un 405547522

#NI

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Fax ctrl un

Part #405547522

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

Sen Bd Un 405460023

#NI

All parts diagram

Sen bd un

Part #405460023

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

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty
Time required
 30 minutes or less
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 a defrost sensor in a side-by-side refrigerator

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty
Time required
 45 minutes or less

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