User manual TASCAM LA-81

[. . . ] · Do not place any objects filled with liquids, such as vases, on the apparatus. · Do not install this apparatus in a confined space such as a book case or similar unit. · The apparatus draws nominal non-operating power from the AC outlet with its POWER or STANDBY/ON switch not in the ON position. · The apparatus should be located close enough to the AC outlet so that you can easily grasp the power cord plug at any time. [. . . ] · An apparatus with Class I construction shall be connected to an AC outlet with a protective grounding connection. · Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like. · Excessive sound pressure from earphones and headphones can cause hearing loss. 8 Do not install ne a r any he at source s such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9 Do not defeat the safety purpose of the polarized or grounding-type plug. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10 Protect the power cord from being walked on or pinched par ticularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11 Only use attachments/accessories specified by the manufacturer. 12 Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 13 Unplug this apparatus during lightning storms or when unused for long periods of time. 14 Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. TASCAM LA-80/81MKII 3 E_LA-80-81mkII_RevC. indd 3 08. 12. 19 1:07:23 PM Contents 1­Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Cleaning the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3­ADA Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Example 1 (LA-81MKII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Example 2 (LA-81MKII) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 GND LIFT switches In a studio or other place where multiple units are connected, a ground loop can occur through the wiring, and this loop can cause a hum or other noise. If this occurs, engage GND LIFT switches to cut ground loops from the (balanced) OUTPUTS 5. NOTE 8 Level indicator LED switch If this switch is ON, LEDs light when input signals are present. If this switch is OFF, the LEDs do not light regardless of the presence of input signals. 9 GND connector When multiple pieces of equipment are connected, use this to make the chassis of each piece of equipment have the same electrical potential. 0 Power outlet (see NOTE below) Use this three-prong outlet, which is not affected by the power switch, to connect AC equipment with a maximum power consumption of 400 W (or 3A). The specifications are displayed on the top of the unit. NOTE The GND LIFT switches do not cut the ground for the INPUTS 4. 7 ALL LIFT switch When other equipment is mounted in the same metal rack, for example, a ground loop can occur through the panel or chassis, and this loop can cause a hum or other noise. If this occurs, engage the ALL LIFT switch to cut the loop. The EUR model does not have this power outlet, so the panel here is blank. q AC IN connector Connect the included power cord. 6 TASCAM LA-80/81MKII E_LA-80-81mkII_RevC. indd 6 08. 12. 19 1:07:24 PM 2­Names and Functions of Parts Front panel (LA-81MKII) 1 POWER switch and LED Turns power ON and OFF. 2 LED indicators Indicate the presence of input signals. 3 TRIM (BALANCED TO UNBALANCED) 1­8 These semi-fixed trim controls allow output signal levels to be adjusted in a range of ±12 dB. Rear panel (LA-81MKII) 4 OUTPUTS 1­8 RCA pin jack type output connectors with nominal output levels of -10 dBV (0. 3 V). 5 INPUTS 1­8 XLR type input connectors with nominal input levels of +4 dBu (1. 23 V) or -20 dBu (0. 0775 V). 6 GND LIFT switches In a studio or other place where multiple units are connected, a ground loop can occur through the wiring, and this loop can cause a hum or other noise. [. . . ] 6 GND LIFT switches In a studio or other place where multiple units are connected, a ground loop can occur through the wiring, and this loop can cause a hum or other noise. If this occurs, engage GND LIFT switches to cut ground loops from the (balanced) INPUTS 5. NOTE 8 Level indicator LED switch If this switch is ON, LEDs light when input signals are present. If this switch is OFF, the LEDs do not light regardless of the presence of input signals. 9 GND connector When multiple pieces of equipment are connected, use this to make the chassis of each piece of equipment have the same electrical potential 0 Power outlet (see NOTE below) Use this three-prong outlet, which is not affected by the power switch, to connect AC equipment with a maximum power consumption of 400 W (or 3A). [. . . ]