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ENGLISH
MDC CLASSIC UPGRADE SLOTS
The delivery format of digital content is constantly changing in pure digital
systems like the C 658. Each of these format typically requires specialized
hardware and software, often with licensed IP and content copy protection.
To address continuous technological evolution, NAD has placed all digital
interface circuitry of the C 658 on easily upgradable modules, called
Modular Design Construction (MDC). The C 658 has provision for two slots
where MDC upgrade modules can be installed.
One signicant upgrade for your C 658 is the integration of the optional
MDC HDM-2. Consult with your NAD dealer for other compatible C 658
MDC module upgrades.
MDC HDM-2
MDC HDM-2 oers three HDMI input terminals and one HDMI output. MDC
HDM-2 adds HDMI switching and audio capability to C 658. It supports
4K@60 4:4:4 and HDCP 2.2 compliant. With MDC HDM-2 installed, C 658
supports HDMI Control (CEC) and Audio Return Channel (ARC) functions.
Both functions are possible if external devices that also support both
features are interconnected with C 658 via HDMI connection.
If an ARC connection is established, the front panel display will show “HDMI
ARC”.
IMPORTANT!
Ensure that ARC-connected devices to C 658 have their audio settings
set to PCM only.
A HDMI OUT: Connect to corresponding
HDMI port of HDTV, projector with HDMI
input or TV that supports HDMI CEC/ARC.
B HDMI 1 - 3: Connect to the HDMI OUT
connectors of source components such
as DVD player, BD player or HDTV satellite/
cable box.
WARNING!
Before connecting and disconnecting any HDMI cables, both the C 658
and the source must be powered OFF and unplugged from the AC
outlet. Failure to do so may cause permanent damage to equipment
connected via HDMI sockets.
IDENTIFICATION OF CONTROLS
REAR PANEL
9
A
B
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