#NI
All parts diagram
Unknown brand name #298 calculator ribbon (black and red)
Part #BR80C
The manufacturer no longer makes this part, and there's no substitute part
Model # QS-2770 Official Sharp calculator
Here are the diagrams and repair parts for Official Sharp QS-2770 calculator, 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
ALL PARTS
Showing 1 of 1 parts |
Symptoms for gas chainsaws
Choose a symptom to see related chainsaw repairs.
Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…
Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…
Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…
Repair guides for gas chainsaws
These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.
How to rebuild a chainsaw carburetor
If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…
Repair difficulty
Time required
15 minutes or less
How to replace a chainsaw carburetor
If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…
Repair difficulty
Time required
15 minutes or less
How to replace chainsaw fuel lines
The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…
Repair difficulty
Time required
15 minutes or less
Effective articles & videos to help repair your office
Office and smart products articles | Sears PartsDirect
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn what the Amazon Fire Stick Lite video streaming device does.…