Manley MM/MC GRAMOPHONE CARTRIDGE PREAMPLIFIER Owner's Manual

Contents

Manley MM/MC GRAMOPHONE CARTRIDGE PREAMPLIFIER Owner's Manual Manual pdf 9 page image

OPERATIONAL NOTESBEFORE POWER-UPOnce placed, join the power supply cable to the pre-amplifier via the large16-pin circularconnector. The 16-pin connectors are keyed and can only be mated when both halves are lined upcorrectly. Check and make sure the power supply is switched off, then attach the grounded IECpower cable jack to the IEC plug. Keep the power off until all other system connections arecompleted.Proceed by connecting the input and output cabling to the signal sources and loads asdesired. Tie any separate turntable or tonearm ground lead to the gold CHASSIS ground bindingSet the GAIN dB control to 55 dB and VOLUME control to about 9 o’clock. Choose theMM or an MC input, as necessary, with the INPUT control. Place the LOAD Z switch to a valueat or near that recommended by the cartridge manufacturer. Adjust the LOAD CAP switches to avalue at or near that recommended by the cartridge manufacturer less any interconnect cablecapacitance. Select and clean, if necessary, your favorite gramophone record....Plug the power cable in and place the power supply’s mains power switch in the on (|)position. The STANDBY switch should glow. Push the STANDBY switch. The STANDBYswitch will go dark, selected INPUT and GAIN blue LED’s will illuminate, the MUTE switchlamp will start flashing and the power supply pilot LED and the MANLEY STEELHEAD badgewill light up.PREPARATION FOR INSTALLATIONBudget a suitable space in which to place the preamplifier, power supply and associatedinterconnect cable. This space should be free of strong external magnetic and RF fields, andreasonably removed from strong loudspeaker-generated acoustical fields. This space should alsobe free of excessive heat or dust and large enough to permit easy flow of cool air to the top, bottomand sides of the preamp and power supply.Make sure the power supply’s mains voltage selector switch is set to match the local linevoltage, and the wire link is present between the preamp’s green CHASSIS and black CIRCUITground mini binding posts on the rear panel.Try to position the power supply away from any interconnect cables which may be carryingaudio signals.Page 9DIDIMMUTEMUTE SUMSUMVOLUMEVOLUMELINELINESLEEPSLEEP01234 5 67891010x10x10LOADLOADCAPCAPpFpFs2 34 002 0MC LOAD Z, ohmMC LOAD Z, ohm5x100x100101098765421005010010010109876543210MANLEYMANLEYSTEELHEADSTEELHEAD0LOADLOADCAPCAPpFpF1234 5 67891010x100x100 x10x1012MCMCMMMM5050555560606565GAIN dBGAIN dBMCMCINPUTINPUT