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Onkyo
Receiver

Model # HT-R990 Official Onkyo receiver

Here are the diagrams and repair parts for Official Onkyo HT-R990 receiver, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 25 parts  |
Ir Sensor 24130019
#NI

Cabinet parts diagram

Ir sensor

Part #24130019

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

Pcb Assembly 1B258521-1G
#NI

Cabinet parts diagram

Pcb assembly

Part #1B258521-1G

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

Pcb Assembly 1B258543-1B
#NI

Cabinet parts diagram

Pcb assembly

Part #1B258543-1B

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

Pcb Assy(u 1B258584-1E
#NI

Cabinet parts diagram

Pcb assy(u

Part #1B258584-1E

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

Leg 27175464
#A3

Cabinet parts diagram

Leg

Part #27175464

This item is not returnable
$2.16
In Stock
Knob 28326904
#A217

Control panel diagram

Knob

Part #28326904

This item is not returnable
$2.16
In Stock
Knob Vol 28326914
#A321

Control panel diagram

Knob vol

Part #28326914

This item is not returnable
$2.76
In Stock
Knob Input 28326920B
#A214

Control panel diagram

Knob input

Part #28326920B

This item is not returnable
$2.86
In Stock
Knob Input 28326936B
#A215

Control panel diagram

Knob input

Part #28326936B

This item is not returnable
$3.01
In Stock
Fuse 8a 252329GR
#NI

Cabinet parts diagram

Fuse 8a

Part #252329GR

This item is not returnable
$2.16
In Stock

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