14
4MinX - User manual
55 000 061 - I
3. Powering
3.1. Specifications
4MINX operates from Li-Ion DV battery type NPF-9x0. The integrated charger
can recharge it from an external DC supply in less than 7 hours (depending of
the battery capability).
The DC/Bat LED becomes red to show the proper operation of the internal
charger. This LED becomes green at the end of the charge. If you don't want to
charge the battery, you should use a dedicated power cable without connection
on the Charger dc input pin (See connectors paragraphs), which may be
desirable e.g. if the external source is itself derived from a battery pack.
4MINX can operate from an external source of
8 V to 18 V DC
voltage.
4MINX draws
constant power
from the external source when the voltage
changes. 10V minimum is need for charging.
The same LED becomes green to indicate the presence of the external
power source. 4MINX switches automatically between its internal battery and
the external source, without any noise (priority is given to the external source
when it is available!)
The low battery level can be adjusted by menu from 6,9v to 7,3v. When this
threshold is reached, a warning message is display on the screen and the
battery icon is set in red.
Whenever the battery voltage goes down to 6.9 V, 4MINX is automatically
shut off.
This prevents damaging the battery by discharging it too deeply.
4MINX’s power consumption and hence its battery range depend much on the
operating conditions, such as the number and powering mode of the
microphones, headphone impedance and listening level, etc.
However, as an example, starting with a full charged battery, 4MINX will
operate for at least 7 hours (Sony NP-F970) with dynamic microphones
(including ribbon microphones) and a 600
headphone. In such condition,
4MINX draws less than 500mA from a 14.4V external source.
4MINX draws a near-constant
power
(not a constant current) from the external
source when the voltage varies
Summary of Contents for 4MinX
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Page 85: ...55 000 061 I 4MinX User manual 79 8 3 Block diagram ...
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