Lexicon MC-12HD User Manual

MC-12HD Digital Controller/Processor

Release Notes

The purpose of this document is to communicate any points that are not fully discussed or to
correct and update text within the MC-12HD User Guide, Part No. 070-17555, Rev 0.

Manual revisions pertinent to the V2.00 Software upgrade:

• The V2.00 allows the passing of 7.1 PCM (LPCM) upto 96 KHz source via HDMI inputs. Upon receiving
a 7.1 LPCM source over HDMI, the MC-12HD automatically loads 7.1HD DIRECT mode. This new
mode is analogous to 5.1mc ST ANDARD and allows the use of bass management, speaker crossovers,
speaker distance calibration, and audio controls (tone controls). When these features are not used, the

7.1HD DIRECT listening mode is similar to the 7.1mc BYP ASS listening mode. Note: no special setting
on the MC-12HD is required. Upon detecting the 7.1 LPCM audio, the MC-12HD will display 7.1HD
DIRECT in quick status.

• When listening to 7.1 LPCM audio, pressing 2CH button on the remote loads 7.1HD 2-CHAN mode. In

7.1HD 2-CHAN mode all channels are downmixed to Front L/R.

• The V2.00 fi xes an abrupt noise issue when switching from certain 48KHz LPCM tracks to 96KHz
LPCM disc title track and vice versa.

• Improved audio sync time when playing CD.

NOTE:

• It is recommended that users back up their settings using confi guration utility as a precaution.

• When source’s HDMI audio output is selected as LPCM, the MC-12HD does not decode the audio
signal. That is, in case of Dolby and DTS formats, the upstream source device is responsible for
decoding the signal and outputting a LPCM signal to the MC-12HD.

• If source device is setup to output HDMI Audio in “Bitstream”, then the MC-12HD will NOT detect the

7.1 audio streams.

Manual revisions pertinent to the V1.25 Software upgrade:

The V1.25 software upgrade resolves a potential noise issue. In some cases, while using the 5.1mc surround
mode and 5.1 surround analog inputs, there may be noise on the analog output line. This software revision
resolves potential noise on the analog output while using the 5.1 analog inputs.

For customer service and product shipment
information, refer to the website: www.lexicon.com

Lexicon Part No. 070-20650 | Rev 3 | 10/09

Manual revisions pertinent to the V1.21 Software upgrade:

The V1.21 software upgrade provides the following support for the MC-12HD Digital Controller:

• Compatibility with Pioneer Kuro Plasma and Sony KDS monitors.

• Resolves the video artifacts issue (occurrence of a blue line to the left side of the picture) with Toshiba
HD-DVD players.

• Resolves the loss of center channel condition that can occur while using the Logic 7 multi-channel
surround modes.

Manual revisions pertinent to the V1.20 Software upgrade:

With the V1.20 software upgrade, the MC-12 HD supports 1080p 60 Hz, 1080p 50 Hz, and 1080p 24 Hz
video resolutions over HDMI. The following changes pertain to the MC-12 HD user manual in support of
this change:

Page 1-2: About the MC-12 HD summary

The MC-12 HD can pass digital video signals of up to 1080p, and multiple digital audio channels (5.1
channels) at sample rates of up to 96 kHz through the HDMI interface.

Page 2-23: HDMI Status menu and page 2-29: HDMI Status menu description

The VID FMT (Video Format) parameter can display 480i, 480p, 720p, 1080i, and 1080p as possible video
resolution settings, as refl ected by the actual setup of the MC-12 HD Processor.

Page A-2: HDMI Performance Specifi cations

The Video Resolutions parameter can display 480i, 480p, 720p, 1080i, and 1080p as possible video
resolution settings. Note that the available resolution levels are dependent upon the capabilities of the
HDMI display connected to the MC-12 HD HDMI output connector.

Manual revision pertinent to the V1.10 Software upgrade:

Page 3-22: Format Detection Parameter description

The Format Detect parameter is independently adjustable for each input. It was implemented to correct
anomalies in certain mixed audio format and satellite broadcast signals. Within the V1.10 software upgrade,
if you require the FAST FORMAT DETECT setting for one of your inputs, you should avoid using PLIIx
listening modes with that input.

General Manual Corrections (not dependent upon a software upgrade)

Customer Service and Product Shipment Information

Contact and address information have changed. Refer to www.lexicon.com for the correct information.

Page 2-8: Rear Panel graphic and page 2-10: Digital Audio Input Connectors (Section #19) description

The Rear Panel graphic, in section #19: Digital Audio Input Connectors, is incorrect, as is the accompanying
description on page 2-10. The available connectors include six S/PDIF coaxial (RCA) and six S/PDIF
optical TOSLink connectors. There is no optical mini jack connector available.

For customer service and product shipment
information, refer to the website: www.lexicon.com

Lexicon Part No. 070-20650 | Rev 3 | 10/09