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Cumulus
Office

Model # SX/20 Official Cumulus computer

Here are the diagrams and repair parts for Official Cumulus SX-20 computer, as well as links to manuals and error code tables, if available.

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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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ALL PARTS
Showing 9 of 9 parts  |
Em1428 14"cl 300000T0

#NI

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Em1428 14"cl

Part #300000T0

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

Power Cord 6290114

#NI

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Power cord

Part #6290114

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

Ac Pur Ad Cr 6360139

#NI

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Ac pur ad cr

Part #6360139

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

101 Keyboard 6370020

#NI

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101 keyboard

Part #6370020

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

80mgdr W/sft 2030039

#NI

All parts diagram

80mgdr w/sft

Part #2030039

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

Keylk/keys 6290170

#NI

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Keylk/keys

Part #6290170

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

Em1428 14"cl 300000T0R

#NI

All parts diagram

Em1428 14"cl

Part #300000T0R

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

Speaker Assembly 6290180

#NI

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Speaker assembly

Part #6290180

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

Processor Bd 9020289

#NI

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Processor bd

Part #9020289

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Read more
Repair difficulty
Time required
 30 minutes or less

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