Powering; Internal Power, Np-1 Battery; Internal Power, Alkyline Batteries; External Power - PSC M4 mkII Operation Manual

POWERING:

A. INTERNAL POWER, NP-1 BATTERY
The PSC M4mkII Mixer is the first compact ENG mixer to offer the ability to be
powered from an internal NP-1 rechargeable battery. This feature provides a
convenient way of powering the mixer without added size, adapters or cables. In
addition, because the NP-1 battery is securely housed within the mixer, there is
little chance that the battery could be knocked loose as with conventional battery
adapters.
There are several high capacity NP-1 batteries now on the market. These
include the standard Ni-Cad, Nickel Metal Hydride and most recently Lithium-Ion.
Most of these batteries are available in both 12.6 Volt and 13.8-Volt varieties.
Either voltage will work in your M4mkII. The M4mkII Mixer consumes
approximately 175mA of current when no microphones are being powered. This
translates into a battery life of 10 to 20 hours depending on the battery type.
Powering wireless will shorten battery life considerably depending upon wireless
models selected. The NP-1 battery pack is held in place with a simple spring
steel latch. To remove the battery simply push down on the latch and pull out the
battery.
B. INTERNAL POWER, ALKALINE BATTERIES
Eight "AA" alkaline batteries can also power the M4mkII Mixer. These batteries
are housed in a convenient battery tray designed to be inserted in the standard
NP-1 battery slot. When using alkaline batteries, you can expect 8 to 12 hours of
operation under normal circumstances. The PSC M4mkII Mixer automatically
senses the use of NP-1 battery or Alkaline cells. It automatically adjusts the "low
battery" warning point to match the battery used.
PRACTICAL USE NOTE: NEVER STORE YOUR M4mkII MIXER FOR
EXTENDED PERIODS OF TIME WITH THE ALKALINE BATTRIES
INSTALLED IN THE MIXER. THERE IS A POSIBILITY THAT THE BATTRIES
MAY LEAK CAUSING CORROSIN OF THE MIXER. BATTREY LEAKAGE
AND THE RESULTING COOROSIN DAMAGE IS NOT COVERED UNDER THE
M4mkII MIXER WARRANTY.
C. EXTERNAL POWER
The PSC M4mkII Mixer can also be externally powered from any source of DC
power from 7 to 18 Vdc. The mixer consumes approximately 175 mA over this
voltage range. This current consumption is nearly constant and does not vary
dramatically over operating voltages like other mixers. The external power
connector is located on the right side of the mixer below the NP-1 battery slot.
Pin outs of this Hirose 4 pin connector are as follows:
Pin 4 (+) Positive
Pin 1 (-) Negative
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