Pioneer VSX-LX505 Firmware Update

Date: (07-01-2025)

This document details the firmware updates for the Pioneer VSX-LX505 AV Receiver, aimed at enhancing performance and adding new features. Updates can be installed via USB or Network connection.

Current Version: R142-1018-1283-0033

Update History

07/01/2025 Update

Minor bug fixes and stability improvements.
Added setup microphone switching procedure. Refer to Switching-the-Setup-Microphone_P-_Rev1.pdf for details.

03/12/2025 Update

Fixed an issue where no sound was produced when playing music via Bluetooth from an iPhone.
Resolved a problem with the PC version of Dirac Live that caused channel names and filters to not be shown or applied correctly during measurement.
Improved stability and fixed minor bugs.

10/28/2024 Update

Addition of Amazon Music HD.
Dolby Atmos Music Playback Capability for Amazon Music HD and Tidal Native Playback.
Source Based Tone Mapping for HDMI 2.1a.
Improved Amplifier Power supply sequence.
Google Cast 2.0.
The method for network connection has been changed. Refer to this link for details.
Support for Tidal MAX.
Improved Dirac Live measurement on the Pioneer Application.
Minor bug fixes and improved stability.

04/23/2024 Update

Minor bug fixes and stability improvements.

09/05/2023 Update

Fixed an issue with displaying messages related to OSD signals when connecting the Optoma projector.
Fixed an issue where enabling Bluetooth transmission would prevent HLG display.
Minor bug fixes and stability improvements.

03/30/2023 Update

Minor bug fixes and stability improvements.
Added ALLM, VRR information to OSD Info/Status/One Shot display for input signals.
Added Auto Phase Control Plus fixed timing to OSD Info/Status display for output signals.

09/09/2022 Update

Improved stability of Bluetooth Transmitter function.
Raised the upper limit of the Dirac delay time from 20 msec to 50 msec.
Added recovery process for Network Errors occurring in Dirac.
Minor bug fixes and stability improvements.

05/18/2022 Update

Improved mic curve characteristics of Dirac Live for calibration. Recalibration is recommended after this update if already calibrated.
Fixed an issue with center speaker sound absence for input signals/devices like Apple TV 4K when dialog enhancement was changed to +1 or more from 0 during Auto Surround/Straight Decode mode, if the center speaker setting was available.
Minor bug fixes and stability improvements.

01/12/2022 Update

Chromecast built-in version updated to 1.52GM2.
Improved reception capability in certain TuneIn Radio stations.
Fixed an issue preventing Deezer playback when not logged in.
Fixed an issue where Web Setup could not be accessed depending on Dirac Live measurement results.
Minor bug fixes and stability improvements.

10/14/2021 Update

Chromecast built-in version updated to 1.52.
Fixed a no sound and video issue via eARC connection from SONY TV.

07/20/2021 Update

Virtual Remote, Limit Mode, and HDMI diagnostic functions added to the Web Setup Menu.
Fixed the problem where the audio format of TIDAL playback became AAC.
Fixed the problem of color corruption in Dolby Vision games on Xbox.
Fixed a problem where the image would not be displayed when VRR was turned on for Xbox.
Fixed the problem where High Bit Rate Audio such as Dolby TrueHD would not be output when 4K or 8K resolution signals were input.
Fixed the problem where audio would not be output from the TV speakers when playing High Bit Rate Audio signals such as Dolby TrueHD in TV audio output mode.
Fixed a problem with the HDMI diagnostic function Source Test.

Firmware Update Instructions

Update the firmware via network or USB connection.

Updating the firmware via network: You can update the firmware by connecting the unit to a network.

Updating the firmware via USB connection: You need a 128 MB or larger capacity USB storage for updating.

For detailed instructions, please refer to the "Firmware Update" section of the Instruction Manual.

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