Audio Fix / setup help
Denon AVC-X4800H (EU), AVR-X3900H (NA) / AVR-X2900H (EU): select TV Audio after confirming the exact return path
Existing TV return, source currently not TV Audio.
Manufacturer-documented Reviewed 2026-11-09 · Revision 2
Follow these checks in Audio Fix →When this guide applies
Denon AVR-X3900H (NA) / AVR-X2900H (EU). Existing TV return, source currently not TV Audio. Exact AVC-X4800H controls already documented in its existing guide; receiver return output is MONITOR 1 for AVC-X4800H and TV 1 for the two AVR models.
Connection scope: HDMI / ARC / eARC audio. Symptom: There is no playback sound.
This is a documented check, not a diagnosis of your equipment. The model name does not confirm the selected input, mode, software or connected partner.
If your exact model or a required setting is unknown, use the “I don’t know” branch below. Do not apply a similarly named model’s instructions.
Checks and possible outcomes
Start at step-0. Follow the link that matches what you actually observe. Alternative branches are not a single sequence of actions.
step-0
Is the installed cable already between the exact model TV-return HDMI output and the TV documented ARC/eARC connector?
AVC-X4800H: HDMI OUT MONITOR 1. AVR-X3900H and AVR-X2900H: HDMI OUT TV 1. Confirm the matching TV return connector without changing live cables.
Look for: Confirm the actual prerequisite or observation. Stop safely if unknown.
- If Yes, confirmed → Are the exact TV return/output settings already confirmed from its own manual?
- If No → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
step-1
Are the exact TV return/output settings already confirmed from its own manual?
For ARC the receiver ARC setting must also be known On; eARC partner settings vary.
Look for: Confirm the actual prerequisite or observation. Stop safely if unknown.
- If Yes, confirmed → For eARC, is TV Audio known not assigned to a physical HDMI input?
- If No → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
step-2
For eARC, is TV Audio known not assigned to a physical HDMI input?
The manual excludes that assignment; do not delete it or restart equipment by trial and error.
Look for: Confirm the actual prerequisite or observation. Stop safely if unknown.
- If Yes, confirmed → May the current receiver source switch to TV Audio with levels initially low?
- If No → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
step-3
May the current receiver source switch to TV Audio with levels initially low?
This interrupts its current programme and may restore TV sound immediately.
Look for: Confirm the actual prerequisite or observation. Stop safely if unknown.
- If Yes, confirmed → Select TV Audio as the receiver input
- If No → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
step-4
Select TV Audio as the receiver input
Leave CEC, input assignments, TV menus and cables unchanged.
Look for: Perform only the stated operation, then confirm it was possible.
- If I completed this → Does the intended TV programme now play through the receiver?
- If I could not do this → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
step-5
Does the intended TV programme now play through the receiver?
Correct input selection cannot add a missing TV return capability.
Look for: Confirm the actual prerequisite or observation. Stop safely if unknown.
- If Yes, confirmed → Checks completed — report the actual result
- If No → Stop at the unconfirmed condition
- If I do not know / cannot check → A required fact is unknown
- Manufacturer-documented Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC AVC-X4800H ↗Connection 1 : TV equipped with an HDMI connector and compatible with the ARC / eARC — The TV return connection uses its explicitly labelled ARC/eARC port and HDMI OUT MONITOR 1. eARC is automatic on the receiver; TV-side settings depend on that exact TV. ARC requires its documented ARC configuration.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented HDMI Setup AVC-X4800H ↗HDMI Setup — HDMI Audio Out selects AVR speakers or TV. With HDMI Control active the TV audio setting has priority. TV Audio Switching names the TV Audio input.Exact model named in the retrieved manufacturer document header. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X3900H official manual ↗PDF pages 1, 61, 273 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.North American AVR-X3900H; do not apply to a differently named European receiver. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
- Manufacturer-documented Denon AVR-X2900H official manual ↗PDF pages 1, 53, 258 — The TV return cable uses receiver HDMI OUT TV 1 and the TV ARC/eARC port. TV Audio must be selected; eARC requires compatible TV settings and no HDMI input assigned to TV Audio.European AVR-X2900H / AVR-X2900H DAB shared manual; not an inferred X2800 generation. Selection only, no live cable changes or universal television menu. · Source checked 2026-11-09
Possible result
Checks completed — report the actual result
Completion does not automatically mean the problem is solved. Report what actually happened; no physical test or measured repair is claimed.
steps completed
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
Stop at the unconfirmed condition
A required setup or response was not confirmed. Retain the actual observation and consult the exact source/partner manual or official support. Do not escalate to a reset, update installation, internal repair or unsafe wiring change.
next support
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.
Possible result
A required fact is unknown
Confirm the actual model, connection, partner capability and state before continuing. Do not guess a menu, interrupt an installation or modify a live source by trial and error.
insufficient data
Reaching this result does not mean the issue is solved. Only your own feedback can report improvement.