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TASCAM  LA-80/81MKII 

7

Front panel (LA-81

MK

II)

1

 POWER switch and LED 

Turns power ON and OFF. 

2

 LED indicators 

Indicate the presence of input signals.

3

 TRIM (BALANCED TO UNBALANCED) 1–8

These semi-fixed trim controls allow output signal 

levels to be adjusted in a range of ±12 dB.

2–Names and Functions of Parts

Rear panel (LA-81

MK

II)

4

 OUTPUTS 1–8 

 

RCA pin jack type output connectors with nominal 

output levels of -10 dBV (0.3 V).

5

 INPUTS 1–8 

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. If this occurs, engage 

GND LIFT

 switches to 

cut ground loops from the (balanced) 

INPUTS

 

5

NOTE

The GND LIFT switches do not cut the ground for the 
OUTPUTS 

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.

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). This connector is convenient when using 

multiple LA-80/81

MK

II units. The specifications 

are displayed on the top of the unit.  

NOTE

 

The EUR model does not have this power outlet, so the 

panel here is blank.

q

 AC IN connector

 

Connect the included power cord.

Summary of Contents for Tascam LA-80MKII

Page 1: ...D01047820A LA 80 81 Unbalanced Balanced Line Converter OWNER S MANUAL ...

Page 2: ...ue cet appareil peut provoquer des interférences radio dans ce cas l utilisateur peut être amené à prendre des mesures appropriées Für Kunden in Europa Warnung Dies ist eine Einrichtung welche die Funk Entstörung nach Klasse A besitzt Diese Einrichtung kann im Wohnbereich Funkstörungen versursachen in diesem Fall kann vom Betrieber verlang werden angemessene Maßnahmen durchzuführen und dafür aufzu...

Page 3: ...ble 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 c...

Page 4: ... 81MKII 7 Rear panel LA 81MKII 7 Bottom panel LA 80MKII 8 Bottom panel LA 81MKII 8 Block diagram LA 80MKII 9 Level diagram LA 80MKII 9 Block diagram LA 81MKII 10 Level diagram LA 81MKII 10 3 ADA Functions 11 LA 80MKII ADA Functions 11 Example 1 LA 80MKII 11 Example 2 LA 80MKII 11 LA 81MKII ADA Functions 12 Example 1 LA 81MKII 12 Example 2 LA 81MKII 12 4 Specifications 13 Inputs and Outputs 13 Perf...

Page 5: ...ustment of 12 dB Rack mount brackets Three prong AC power outlet Not on EUR model Overview Supplied accessories The following items are included with this product Main unit 1 Power cord set 1 Rack mount screw set 1 Owner s Manual this document 1 Warranty card 1 Contact your TASCAM supplier if any of these items are missing Precautions for placement and use Cleaning the unit Use this unit within it...

Page 6: ...ound 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 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 r...

Page 7: ...und for the OUTPUTS 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 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 r...

Page 8: ...gnal to be routed to any higher numbered output Two or more inputs can also be assigned to multiple outputs in sequence see 3 ADA Functions for examples w INPUT LEVEL switches 1 8 Switches that set whether the signal levels input to the INPUTS 5 are 4 dBu 1 23 V or 20 dBu 0 0775 V This setting can be made for each channel independently e INPUT LINK switches 2 8 These switches allow an input signal...

Page 9: ...1 2 3 1 R729 47k AGND AGND SGND AGND AGND AGND RCA JACK GND LIFT XLR OUT 4dBu 20dBu 4dBu 20dBu LEVEL SHIFT GND LIFT 5 6 7 3 2 1 8 4 AMP with TRIM function BALANCED AMP LEVEL 10dBV 9dBu 10dB 5dB 0dB 5dB 10dB 15dB 15dB 20dB 25dB 30dB 35dB 40dB 45dB 50dB 17dBu 4dBu 20dBu 4dBV 33dBu 2 2dB 26 2dB 17dBV 9dBV 0dBu 0 775V 0dBV 1V 7dBu UNBALANCED TO BALANCED UNBALANCED TO BALANCED ...

Page 10: ...CK AGND AGND AGND GND LIFT GND LIFT XLR IN BALANCED INPUT CIRCUIT BALANCED AMP with TRIM function GAIN SWITCH AMP 4dBu 20dBu LEVEL 10dB 5dB 0dB 5dB 10dB 15dB 15dB 20dB 25dB 30dB 35dB 40dB 45dB 50dB 4dBu 2 1dBu 8dBu 18dBu 31 8dBu 20dBu 29dBu 16dBu 42dBu 10dBV 24dB 5dBu 0dBu 0 775V 0dBV 1V 7 1dB 2 8dB 21 9dBu 7 1dB BALANCED TO UNBALANCED BALANCED TO UNBALANCED ...

Page 11: ... 1 is output through balanced OUTPUTS 1 8 5 Input signal L Input signal R 1 2 3 4 5 6 7 8 L R Outputs 1 5 In this example a stereo pair of signals input through channels 1 and 5 are output in parallel to 4 channels each 1 Connect the left stereo signal to the unbalanced INPUT 1 4 and connect the right stereo signal to the unbalanced INPUT 5 4 2 Turn INPUT LINK switches 2 4 and 6 8 e ON 3 The left ...

Page 12: ... is output through unbalanced OUTPUTS 1 8 4 L R 1 1 2 3 4 5 5 6 7 8 L R Input signal Input signal Outputs In this example a stereo pair of signals input through channels 1 and 5 are output in parallel to 4 channels each 1 Connect the left stereo signal to the balanced INPUT 1 5 and the right stereo signal to the balanced INPUT 5 5 2 Turn INPUT LINK switches 2 4 and 6 8 e ON 3 The left stereo signa...

Page 13: ...UT LINK switches are ON Nominal input level 4 dBu 1 dB INPUT LEVEL switch set to 4 dB 20 dBu 1 dB INPUT LEVEL switch set to 20 dB Maximum input level 30 dBu INPUT LEVEL switch set to 4 dB 8 dBu INPUT LEVEL switch set to 20 dB Indicator detection level balanced input 22 dBV or more INPUT LEVEL switch set to 4 dB 46 dBV or more INPUT LEVEL switch set to 20 dB Outputs 8 unbalanced RCA pin jacks Outpu...

Page 14: ...s Dimensional drawings 465mm 280mm 6mm 9mm 44mm 0 5mm 432 6mm 432 2mm 31 8mm 482 6mm 280mm 6mm 9mm NOTE In order to improve these units their specifications and external appearance may be changed without notification Please be aware that as a result of product improve ments illustrations and other depictions in the Owner s Manual may differ in part from the actual product ...

Page 15: ...TASCAM LA 80 81MKII 15 Memo ...

Page 16: ...39 Wallace Street Mississauga Ontario L4Z 1Z8 Canada TEAC MEXICO S A de C V www teacmexico net Phone 52 55 5010 6000 Río Churubusco 364 Colonia Del Carmen Delegación Coyoacán CP 04100 México DF México TEAC UK LIMITED www tascam co uk Phone 44 8451 302511 Suites 19 20 Building 6 Croxley Green Business Park Hatters Lane Watford Hertfordshire WD18 8TE UK TEAC EUROPE GmbH www tascam de Phone 49 611 71...

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