Tascam DJ Equipment LM 8ST User Manual

IMPORTANT SAFETY INSTRUCTIONS  
1 Read these instructions.  
2 Keep these instructions.  
3 Heed all warnings.  
Do not expose this apparatus to drips or splashes.  
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.  
4 Follow all instructions.  
The apparatus draws nominal non-operating  
power from the AC outlet with its POWER or  
STANDBY/ON switch not in the ON position.  
5 Do not use this apparatus near water.  
6 Clean only with dry cloth.  
The apparatus should be located close enough  
to the AC outlet so that you can easily grasp the  
power cord plug at any time.  
7 Do not block any ventilation openings. Install in  
accordance with the manufacturer's instructions.  
8 Do not install near any heat sources such  
as radiators, heat registers, stoves, or other  
apparatus (including amplifiers) that produce  
heat.  
The mains plug is used as the disconnect device,  
the disconnect device shall remain readily  
operable.  
Products with Class I construction are equipped  
with a power supply cord that has a grounding  
plug. The cord of such a product must be plugged  
into an AC outlet that has a protective grounding  
connection.  
9 Do not defeat the safety purpose of the polarized  
or grounding-type plug. A polarized plug has two  
blades with one wider than the other. A grounding  
type plug has two blades and a third grounding  
prong. The wide blade or the third prong are  
provided for your safety. If the provided plug does  
not fit into your outlet, consult an electrician for  
replacement of the obsolete outlet.  
If the product uses batteries (including a battery  
pack or installed batteries), they should not be  
exposed to sunshine, fire or excessive heat.  
CAUTION for products that use replaceable lithium  
batteries: there is danger of explosion if a battery  
is replaced with an incorrect type of battery.  
Replace only with the same or equivalent type.  
10 Protect the power cord from being walked on  
or pinched particularly at plugs, convenience  
receptacles, and the point where they exit from  
the apparatus.  
Caution should be taken when using earphones or  
headphones with the product because excessive  
sound pressure (volume) from earphones or head-  
phones can cause hearing loss.  
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.  
If you are experiencing problems with this product,  
contact TEAC for a service referral. Do not use the  
product until it has been repaired.  
RACK-MOUNTING THE UNIT  
ª
Use the supplied rack-mounting kit to mount the unit in a  
standard 19-inch rack, as shown below.  
Remove the feet of the unit before mounting.  
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.  
NOTE  
Leave 1U of space above the unit for ventilation.  
Allow at least 10 cm (4 in) at the rear of the unit for  
ventilation.  
TASCAM LM-8ST  
3
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1 − Introduction  
Thank you for your purchase of the TASCAM LM-8ST  
Line Mixer.  
NOTE  
Explanation of actions in special situation and  
supplement.  
Before connecting and using the unit, please take time  
to read this manual thoroughly to ensure you understand  
how to properly set up and connect the unit, as well as the  
operation of its many useful and convenient functions. After  
you have finished reading this manual, please keep it in a  
safe place for future reference.  
CAUTION  
Instructions that should be followed to avoid injury,  
damage to the unit or other equipment.  
You can also download the Owner's Manual from the  
TASCAM web site (http://www.tascam.com).  
Trademarks  
TASCAM is a trademark of TEAC Corporation, regis-  
tered in the U.S. and other countries.  
Features  
Other company names, product names and logos in this  
document are the trademarks or registered trademarks of  
their respective owners.  
Rack-mountable 1U size  
8 stereo line inputs, 2 stereo bus outputs  
Each channel has balanced TRS input jacks  
Precautions and notes for placement  
and use  
Channel 1 has an XLR microphone input connector and  
a trim knob  
The operating temperature should be between 5°C and  
35°C (41°F and 95°F).  
Nominal input level can be switched between +4 dB and  
–10 dBV  
Make sure that the unit is mounted in a level position for  
correct operation.  
Each input has overload and signal indicators  
Each output bus has a 4-segment output level meter  
Do not place any object on the unit for heat dissipation.  
1/4-inch (6.3-mm) and 1/8-inch (3.5-mm) headphone  
output connectors  
Avoid installing this unit on top of any heat-generating  
electrical device such as a power amplifier.  
Ground lift switch allows signal grounding to be turned  
ON or OFF for all channels at the same time  
Cleaning the unit  
To clean the unit, wipe it gently with a soft dry cloth. Do  
not wipe with chemical cleaning cloths, benzene, paint  
thinner, ethyl alcohol or other chemical agents to clean the  
unit as they could damage the surface.  
Included items  
The included items are listed below.  
Take care when opening the package not to damage the  
items. Keep the package materials for transportation in the  
future.  
Please contact the store where you purchased this unit if  
any of these items are missing or have been damaged dur-  
ing transportation.  
Main unit (LM-8ST) .......................................................1  
Power cord.......................................................................1  
A rack-mounting screw kit..............................................1  
A warranty card ..............................................................1  
Owner's manual (this manual) ........................................1  
About this manual  
In this manual, we use the following conventions:  
The names of keys and controls are given in the follow-  
ing typeface: POWER.  
Additional information is introduced in the styles below  
when needed:  
TASCAM LM-8ST  
4
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2 − Names and Functions of Parts  
Front panel  
POWER switch and indicator  
11  
Press to turn power ON or OFF. The POWER indicator  
lights when the power is ON.  
MIC/LINE switch  
21  
Set whether the input source for channel 1 is the  
microphone input or the line input.  
MIC trim knob  
31  
Use this to adjust the microphone input level.  
MIC input connector  
41  
Use this balanced XLR connector for microphone input.  
Overload (OL) indicator  
51  
This lights if the level input to this device is too high  
(overloading with a clipping level of –3 dB or higher).  
Signal (SIG) indicator  
61  
This lights when a signal (–20 dBu or greater) is  
detected at the input connector.  
ST 2/AUX knobs  
71  
Use these to adjust the levels sent from each channel to  
the ST 2/AUX bus.  
ST 1 knobs  
81  
Use these to adjust the levels sent from each channel to  
the ST 1 bus.  
Output level meters  
91  
The top segment of each 4-segment output level meter is  
an overload indicator.  
0 MONO buttons  
Push in to set the output to monaural.  
q LEVEL knobs  
Use these to adjust the output levels.  
w ST 1, ST 2/AUX switch  
Set which output to use for headphone monitoring.  
Set it to ST 1 to monitor the ST 1 bus signal or ST 2/  
AUX to monitor the ST 2/AUX bus signal.  
e PHONES knob  
Adjust the headphones output level.  
r PHONES jacks  
Connect headphones to these 1/4-inch (6.3 mm) and  
1/8-inch (3.5 mm) jacks.  
TASCAM LM-8ST  
5
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2 − Names and Functions of Parts  
Rear panel  
t ST 2/AUX OUTPUTS (XLR connectors)  
Theses balanced XLR connectors output the ST 2/AUX  
bus signal.  
h1Power connector  
Use the included power cord to connect the power  
source.  
(1: GND 2: HOT 3: COLD)  
CAUTION  
y1ST 2/AUX OUTPUTS (RCA pin jacks)  
These unbalanced RCA pin jacks output the ST 2/AUX  
bus signal.  
When using this unit, always use the included power  
cord. Moreover, do not use the included power cord  
with any other equipment. Misuse of a power cord could  
cause malfunction, fire or electric shock.  
u1ST 1 OUTPUTS (RCA pin jacks)  
These unbalanced RCA pin jacks output the ST1 bus  
signal.  
Bottom panel  
i1ST 1 OUTPUTS (XLR connectors)  
Theses balanced XLR connectors output the ST 1 bus  
signal.  
(1: GND 2: HOT 3: COLD)  
o1Signal ground (SIGNAL GND) connector  
Use a commercially available PVC-covered cord to  
connect this connector to the signal ground. Note that  
this is NOT an electrical safety ground (earth).  
p1Ground lift (GND LIFT) switch  
Even when the ground connector is used to ground the  
unit, this ground connection can be interrupted (ground  
lift) by setting the GND LIFT switch to the left.  
a1BUSS OUTPUT connectors  
The ST 2/AUX bus signal is output through these  
balanced TRS connectors. (Tip: HOT, Ring: COLD,  
Sleeve: GND)  
j
s1MASTER BUSS IN switch  
j1ST 2/AUX switch  
Set where the signals input from the MASTER BUSS IN  
connectors are sent.  
Set this to ST 2 to send the input signals directly to the  
ST 2/AUX buss after being adjusted by the ST 2/AUX  
knobs. Since this has no effect on the signals sent to  
the ST 1 buss, this unit can be used as mixer with two  
independent stereo busses.  
d1MASTER BUSS IN input connectors  
The signal input through the balanced TRS MASTER  
BUSS IN connectors can be set to be sent to the ST 1  
(MAIN), ST 2/AUX or both busses at once.  
Set this to AUX to send the signals to the ST 2/AUX  
buss after being adjusted by the ST 1 and then the ST 2/  
AUX knobs. Set this way, ST 1 can be used as the main  
buss and ST 2/AUX can be used as an AUX send.  
f1LEVEL switches  
Set the nominal input/output levels for the channel  
inputs/outputs to +4 dBu or –10 dBV.  
g1STEREO INPUTS (L/MONO) connectors  
These are balanced TRS line input connectors for each  
channel. (Tip: HOT, Ring: COLD, Sleeve: GND)  
TASCAM LM-8ST  
6
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3 – Troubleshooting  
If you are having trouble with the operation of this unit,  
please try the following before seeking repair. If these  
measures do not solve the problem, please contact the store  
where you bought the unit or a TASCAM Service Center.  
Power will not turn ON.  
ª
Confirm that the power plug is securely inserted.  
No sound is output.  
ª
Are the input sources connected correctly?  
Are the input selections correct?  
Are the input LEVEL knobs minimized?  
Are all the output LEVEL knobs minimized?  
Are the headphone output (PHONES) knobs minimized?  
Are the volume levels of connected external equipment  
(amplifiers, speakers) minimized?  
There is noise.  
ª
Check the connecting cables for incomplete connec-  
tions.  
TASCAM LM-8ST  
7
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4 – Specifications  
PHONES outputs  
Audio inputs and outputs  
Connectors  
6.3 mm (1/4”) Standard  
stereo phone jacks and 3.5  
mm (1/8”) stereo mini jack  
MIC input  
Connector  
XLR-3-31  
(1: GND, 2: HOT, 3: COLD)  
Maximum output level  
250 mW + 250 mW (32Ω)  
Input impedance  
2.4 kΩ  
Nominal input level  
–58 dBu (1 mV) - –12 dBu (195  
mV)  
Audio performance  
Maximum input level  
+10 dBu (2.45 V)  
Frequency response  
20 Hz–50 kHz, ±3 dB (PHONES  
outputs)  
STEREO INPUT  
10 Hz–100 kHz, ±3 dB (Each  
BUSS output)  
Connectors  
6.3 mm (1/4”) TRS Standard  
phone jacks  
(Tip: HOT, Ring: COLD, Sleeve:  
GND)  
S/N ratio  
80 dB or greater (PHONES  
outputs, A-WTD, 20 kHz LPF)  
80 dB or greater (Each BUSS  
output, A-WTD, 20 kHz LPF)  
Input impedance  
16 kΩ  
Nominal input level  
Maximum input level  
+4 dBu (1.23 V)  
+24 dBu (12.3 V)  
THD  
0.07% or less (PHONES outputs,  
when outputting 100 mW + 100  
mW (32 Ω), 20Hz HPF and 20  
kHz LPF)  
MASTER BUSS IN  
0.03% or less (each BUSS  
output, 20 Hz HPF and 20 kHz  
LPF)  
Connectors  
6.3 mm (1/4”) TRS Standard  
phone jacks  
(Tip: HOT, Ring: COLD, Sleeve:  
GND)  
Channel separation  
50 dB or greater (PHONES  
outputs, A-WTD, 20 kHz LPF,  
1 kHz nominal input and output,  
32Ω termination)  
Input impedance  
16 kΩ  
Nominal input level  
Maximum input level  
+4 dBu (1.23 V)  
+24 dBu (12.3 V)  
70 dB or greater (Each BUSS  
outputs, A-WTD, 20 kHz LPF,  
1 kHz nominal input and output,  
600Ω termination)  
ST 1and ST 2/AUX OUTPUTS  
Connectors  
XLR-3-32  
(1: GND, 2: HOT, 3: COLD)  
Crosstalk  
65 dB or greater (Each BUSS  
outputs, A-WTD, 20 kHz LPF,  
1 kHz nominal input and output,  
600Ω termination)  
Output impedance  
94Ω  
Nominal output level  
+4 dBu (1.23 V)  
Maximum output level +24 dBu (12.3 V)  
Power  
AC 100–240V, 50-60 Hz  
15 W  
ST 1 and ST 2/AUX OUTPUTS  
Power consumption  
Dimensions (WHD)  
482 x 44 x 280 mm  
Connectors  
RCA pin jacks  
200Ω  
Output impedance  
Nominal output level  
18.98 x 1.73 x 11.02 in.  
3.8 kg/8.378 lb  
–10 dBV (0.3V)  
Weight  
Maximum output level +10 dBV (3.16 V)  
BUSS OUT  
Connectors  
6.3 mm (1/4”) TRS Standard  
phone jacks  
(Tip: HOT, Ring: COLD, Sleeve:  
GND)  
Output impedance  
94Ω  
Nominal output level  
+4 dBu (1.23 V)  
Maximum output level +24 dBu (12.3 V)  
TASCAM LM-8ST  
8
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4 – Specifications  
Dimensional drawings  
ꢀꢉꢃꢉꢅTT  
ꢀꢈꢂꢃꢄꢅTT  
ꢀꢀꢅTT ꢆꢃ ꢅTT  
ꢀꢁꢀꢂꢃꢄTT  
ꢀꢁꢂꢃꢄꢅTT  
ꢀꢄꢇꢅTT  
Illustrations and other depictions may differ in part from the actual product.  
Specifications and external appearance may be changed without notification to improve the product.  
TASCAM LM-8ST  
9
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4 – Specifications  
Block diagram  
1 T S X U A / 2 T S  
ST 2 / AUX-R  
ST 2 / AUX-L  
ST 1-R  
ST 2 / AUX-R  
ST 2 / AUX-L  
ST 1-R  
ST 1-L  
ST 1-L  
0 1 -  
4 +  
0 1 -  
4 +  
0 1 -  
4 +  
0 1 -  
4 +  
TASCAM LM-8ST  
10  
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4 – Specifications  
Level diagram  
67ꢀꢂꢃ$8;ꢄ5  
67ꢀꢂꢃ$8;ꢄ/  
67ꢀꢁꢄ5  
67ꢀꢁꢄ/  
0 1 -  
4 +  
0 1 -  
4 +  
TASCAM LM-8ST  
11  
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LM-8ST  
TEAC CORPORATION  
Phone: +81-42-356-9143  
1-47 Ochiai, Tama-shi, Tokyo 206-8530, Japan  
TEAC AMERICA, INC.  
Phone: +1-323-726-0303  
7733 Telegraph Road, Montebello, California 90640 USA  
TEAC CANADA LTD.  
Phone: +1905-890-8008 Facsimile: +1905-890-9888  
5939 Wallace Street, Mississauga, Ontario L4Z 1Z8, Canada  
TEAC MEXICO, S.A. de C.V.  
Phone: +52-55-5010-6000  
Río Churubusco 364, Colonia Del Carmen, Delegación Coyoacán, CP 04100, México DF, México  
TEAC UK LIMITED  
Phone: +44-8451-302511  
Suites 19 & 20, Building 6, Croxley Green Business Park, Hatters Lane, Watford, Hertfordshire, WD18 8TE, UK  
TEAC EUROPE GmbH  
Phone: +49-611-71580  
Bahnstrasse 12, 65205 Wiesbaden-Erbenheim, Germany  
Printed in China  
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