User manual MYRYAD MA500

[. . . ] · UK version only: The fuse in the mains plug has failed. Sound in one channel only: · Loudspeaker cable pulled loose. Check all connections, both at the loudspeakers and amplifier. · Interconnect cable pulled loose or making poor contact. [. . . ] The amplifier is designed for use in moderate climates. CAUTION: TO PREVENT A FIRE OR SHOCK HAZARD, DO NOT PERMIT THIS PRODUCT TO BECOME WET OR EXPOSE IT TO DRIPPING OR SPLASHING. DO NOT PLACE OBJECTS FILLED WITH LIQUID, SUCH AS VASES, ON THE AMPLIFIER. IF LIQUID IS ACCIDENTALLY SPILLED ON IT, IMMEDIATELY SHUT OFF ITS POWER AT THE WALL SOCKET AND UNPLUG THE AC POWER CORD. ALLOW SUFFICIENT TIME FOR COMPLETE EVAPORATION TO OCCUR BEFORE OPERATING THE AMPLIFIER AGAIN. IF THE LIQUID IS ANYTHING BUT WATER AND/OR ALCOHOL, A QUALIFIED SERVICE TECHNICIAN SHOULD EXAMINE THE AMPLIFIER BEFORE IT IS USED AGAIN. DO NOT PLACE NAKED FLAMES, SUCH AS LIGHTED CANDLES ON THIS PRODUCT. DO NOT REMOVE THE COVER, OR ATTEMPT TO MODIFY OR REPAIR THE AMPLIFIER YOURSELF. REFER ALL SERVICING TO A QUALIFIED TECHNICIAN. STANDBY MA 500 Five Channel Power Amplifier 1 FRONT PANEL CONTROLS 1 Standby When the amplifier is plugged into a live wall socket and the POWER switched is turned ON, it will power up in "standby" mode and the LED (Light Emitting Diode) in the STANDBY button will glow red. In this mode the internal circuitry of the amplifier is powered up, but disabled so that it consumes very little power and is isolated by relays at its outputs. When the STANDBY button is pressed the amplifier circuitry will be activated and the LED will flash blue. After about four seconds delay the loudspeaker outputs will be connected to the amplifier and the LED in the STANDBY button will glow blue continuously. When the STANDBY button is pressed again the amplifier will be returned to standby mode. The LED in the STANDBY button will change back to red. PLEASE NOTE: WHEN THE POWER AMPLIFIER IS REMOTELY ACTIVATED FROM ANOTHER UNIT, THERE MAY BE A BRIEF DELAY BETWEEN THE CLOSING OF THE OUTPUT RELAYS OF THE TWO UNITS. THIS IS NORMAL AND NO CAUSE FOR CONCERN. CAUTION: WHEN IN STANDBY MODE THE INTERNAL CIRCUITRY OF THE MA 500 IS STILL LIVE, SO ALL SAFETY PRECAUTIONS MUST BE FOLLOWED. LOUDSPEAKER OUTPUT PROTECTION AND MUTING When the amplifier is in standby mode the loudspeaker output terminals are isolated from the amplifier by a high quality relay. When the amplifier is first switched on from standby mode the loudspeaker outputs remain disconnected for a few seconds to allow the internal voltage levels to settle. The loudspeaker outputs are immediately disconnected again when the amplifier is switched back into standby mode. The same loudspeaker mute relay is used to protect both the amplifier and your loudspeakers against possible damage. If any one of a number of fault modes is detected (loudspeaker outputs short circuit, amplifier overheating, amplifier DC fault) the loudspeakers will be disconnected from the amplifier to protect both. In the case of a short circuit or DC fault the loudspeakers will be re-connected after a few seconds, but will be disconnected again if the fault persists. [. . . ] When joined via the My-Link, the MA 500 will respond to STANDBY and MUTE operations on the preamplifier (whether operated from the front panel or by remote control). For example, if both the preamplifier and the MA 500 are in STANDBY, then switching the preamplifier out of standby will also bring the MA 500 out of standby. In this way an MDP 500 + MA 500 can be operated with the same ease as an integrated amplifier. If a number of MA 500s are being used in a multi-room system all the amplifiers may be My-Linked so that they can be controlled as one. [. . . ]