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
Smith Corona
Office

Model # SD 780 (5FCJ) Official Smith Corona typewriter

Here are the diagrams and repair parts for Official Smith Corona SD-780-5FCJ typewriter, 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 607 parts  |
Ic, 74ls24 706964
#17

Control p.c. board diagram

Ic, 74ls24

Part #706964

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

Resistor 781513
Resistor

Part #781513

Replaced by #121639900

?
Manufacturer substitution
This part replaces 781513. Substitute parts can look different from the original.
This item is not returnable
$5.75
In Stock
Capacitor 730033
Capacitor

Part #730033

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

270 Ohm J 701253
270 ohm j

Part #701253

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

Resistor 701274
Resistor

Part #701274

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

Resistor 781501
Resistor

Part #781501

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

Cap 2000uf 730024
Cap 2000uf

Part #730024

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

Zener Diode 765829
Zener diode

Part #765829

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

Res 1.3k 765833
Res 1.3k

Part #765833

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

74f175pc 910264
#19

Control p.c. board diagram

74f175pc

Part #910264

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

Repair guides for rear-tine tillers

How to replace a tiller drive belt

How to replace a tiller drive belt

The drive belt connects the engine to the transmission, which drives the tines and wheels. If the drive belt is worn an…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace the tines on a rear-tine tiller

How to replace the tines on a rear-tine tiller

Badly worn tines cut through the soil less effectively. If the tines are bent, dull or worn, follow these steps to repla…

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