Audio Developments AD114 - Manual (Page 3)

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Fuse - to protect the mixer and internal power supply is mounted on the power
supply/converter board. Access is gained by removing the DC-DC converter module.
A resettable polyfuse is fitted; therefore maintenance should not normally be
required. The fuse resets after removal of the fault causing the overload.
Limiter threshold - is set at the factory at +8dBu (PPM 6), but an internal preset
potentiometer allows adjustment to any other level above 0dBu. The limiters are to
be found on the output module printed circuit board.
Microphone powering - the mixer will remain unconditionally stable if the powering on
unterminated input channels is switched off - this also improves the noise
performance and crosstalk. Powering - 48V phantom may be selected before or
after the microphone is connected to the module.
Module fix screws - Hexagon head screws are used to fix the modules and back
cover. The size is 1.5mm HEX A/F with a 2.5M thread. If it becomes necessary to
remove modules or back cover it is strongly advised using a good quality hexagonal
head driver. Use of a screwdriver, however desperate, is not recommended.
We wish you many trouble- free hours of use from your mixer. As a company, we are
fully committed to BS EN ISO 9001. Should you have any problem or require any
further information on mixers or the M-S microphone technique, please do not
hesitate to contact us on 01543 375351 or by fax on 01543 361051.