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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  |
Knob Input 28326920B
#A214

Control panel diagram

Knob input

Part #28326920B

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

Cover,bent 28210087B
#A340

Control panel diagram

Cover,bent

Part #28210087B

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

Knob 28326907B
#A219

Control panel diagram

Knob

Part #28326907B

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

Tuner 240169A
#U10

Cabinet parts diagram

Tuner

Part #240169A

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

Clear Plate 28192359A
#A202

Control panel diagram

Clear plate

Part #28192359A

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

Knob Vol 28326914
#A321

Control panel diagram

Knob vol

Part #28326914

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

Chassis 27100533G
#A1

Cabinet parts diagram

Chassis

Part #27100533G

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

Knob Input 28326936B
#A215

Control panel diagram

Knob input

Part #28326936B

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

Parts & More