User manual RANE MLM 82A

[. . . ] Now slowly raise the OUTPUT LEVELS as desired. Never connect anything except an approved Rane power supply to the red thing that looks like a telephone jack on the rear of the MLM 82a. This is an AC input and requires special attention if you do not have a power supply exactly like the one that was originally packed with your unit. See the full explanation of the power supply requirements on page Manual-3. MLM 82a CONNECTION When connecting the MLM 82a to other components in your system for the first time, leave the power supply for last. [. . . ] RANE CORP. MLM 82a 4 3 2 1 BALANCED: PIN 3 = (­) PIN 2 = (+) PIN 1 = (G) 600mA CLASS 2 EQUIPMENT B ACN 001 345 482 A LINE LINE LINE LINE BALANCED OR UNBALANCED PHANTOM POWER 6 3 2 1 MIC/LINE INPUTS 1 through 4. These XLRs connect either balanced Microphone or Line signals, depending on the LINE switch setting (see 3). Rane adheres to the international and U. S. standard for balanced pin configurations: Pin 1 is chassis ground (neutral), pin 2 is positive (+), and pin 3 is negative (­). 2 PHANTOM POWER switch applies 15 V Phantom Power to any Inputs 1-4 that are set for MIC Input. 3 LINE Input selectors switch the sensitivity and input impedance for either a microphone or line level input. If LINE is chosen, Phantom Power is deactivated for that Input. These stereo pairs of balanced inputs accommodate stereo line-level signals. These TRS (Tip-Ring-Sleeve) ¼" jacks handle either balanced or unbalanced signals. In most cases an unbalanced signal may use a mono ¼" plug (Tip-Sleeve). See the Sound System Interconnection RaneNote included with this manual for proper connection. These balanced XLR's provide the A and B mixed output. INTERNAL OUTPUT LEVEL switches allow setting the output level for MIC or LINE level. Pin connections are the same as above in 1. The MLM 82a is supplied from the factory with an RS 1 remote power supply suitable for connection to this input jack. The power requirements call for an 18 volt AC center-tapped transformer only. Call the Rane factory for RS 1 replacement or substitution. A #6-32 screw is provided for chassis grounding purposes. See the note below for details. CHASSIS GROUNDING The MLM 82a is supplied with an external power supply (the RS 1). This power supply does not ground the unit. On the rear chassis a #6-32 screw is provided to allow for attachment of the grounding wire. This chassis ground point must be connected to earth ground either through another product which utilizes a three-prong grounded AC power cord or by attaching the wire to a known earth ground, (the screw on a grounded AC outlet. ) If after hooking up your system it exhibits excessive hum or buzzing, there is an incompatibility in the grounding configuration between units somewhere. [. . . ] A single mono input may be used for the A and/or B inputs. Any mono source connected to A will go to the A output. Any mono source connected to the B input will go to the B output. If you wish one or two mono sources to go to both A and B outputs, press the MONO switch. [. . . ]