NEC
Office

Model # 386SX Official NEC computer

Here are the diagrams and repair parts for Official NEC 386SX 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 50 parts  |

Daughter Card 32990093
Daughter card

Part #32990093

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

Appearance Parts N/P

#NI

All parts diagram

Appearance parts

Part #N/P

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

2400 Baud Modem PC-21-61

#NI

All parts diagram

2400 baud modem

Part #PC-21-61

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

Shell Manual 78123372

#NI

All parts diagram

Shell manual

Part #78123372

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

Battery Charger PC-21-78

#NI

All parts diagram

Battery charger

Part #PC-21-78

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

Connector Cover 25410861
Connector cover

Part #25410861

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

Power Cord 70810740

#NI

All parts diagram

Power cord

Part #70810740

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

Decorative Plate For Hinge 25410681
Decorative plate for hinge

Part #25410681

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

4mb Memory Board PC-21-22

#NI

All parts diagram

4mb memory board

Part #PC-21-22

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

Modem Slot Cover 25410842

#NI

All parts diagram

Modem slot cover

Part #25410842

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 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.…