LDA STV series User manual

User's Manual
Digital Power Amplifiers
MODEL: STV SERIES

INDEX
TECHNICAL DESCRIPTION.............................................................................................................1
DESCRIPTION OF CONTROLS........................................................................................................3
BEFORE SWITCHING THE DEVICE:.........................................................................................4
DESCRIPTION OF CONTROLS. FRONT PANEL:......................................................................4
.DESCRIPTION OF CONTROLS. CONFIGURATION MENU:..................................................6
NAVEGATION INDICATORS:.................................................................................................6
MENU DIAGRAM:....................................................................................................................6
MENÚ:........................................................................................................................................9
DESCRIPTIONS OF CONTROLS: BACK..................................................................................18
CONNECTIONS................................................................................................................................18
CONNECTIONS: BACK..............................................................................................................19
WORKING DESCRIPTION..............................................................................................................
PRIORITY INPUT:.......................................................................................................................
SETTING BY USB:......................................................................................................................
DRIVER INSTALLATION:.....................................................................................................
CONNETION:..........................................................................................................................
USB MENUS:........................................................................................................................... 4
ETX SERIES MODULES.................................................................................................................. 8
TECHNICAL DESCRIPTIONS:................................................................................................... 8
ETX-1 MODULE:.................................................................................................................... 8
ETX-1CN MODULE:............................................................................................................... 9
INSTALLATION OF ETX MODULES:....................................................................................... 9
TECHNICAL SPECIFICATIONS:...............................................................................................31
ETX-1 MODULE:....................................................................................................................3
ETX-1CN MODULE:...............................................................................................................33
TECHNICALS SPECIFICATIONS...................................................................................................34
MECHANICAL CHARACTERISTICS:......................................................................................34
GENERAL SPECIFICATIONS.....................................................................................................35
CARACTERRÍSTICAS SEGÚN MODELO................................................................................36
ESTADOS DEL EQUIPO Y MENSAJES DE ERROR:....................................................................38
AVERAGE TIME FOR REPAIRING, MTBF...................................................................................40

WARNINGS
Read this instruction manual before operating the device.
1. Keep this manual for further reference.
2. his device must not be exposed to water. As a precautionary measure, objects containing
liquids must not be placed next to/on top of it.
3. Do not block the system’s ventilation inlets/outlets, and do not install the device to sources
of heat.
4. If the device is going to be mounted on a frame or rack, make sure that there is good
ventilation.
5. Only use original accessories provided by the equipment’s manufacturer.
6. Unplug the device when it is not going to be used for a long period of time.
7. Clean with a wet cloth, and do not use chemicals products.

1. TECHNICAL DESCRIPTION
The STV series has amplifiers of 2 and 4 Class AB channels with direct output (without
transformer) at 100V. Available configurations are for 2 200W, 400W or 800W channels, and 4
200W or 400W channels.
Each amplifier channel includes connected loudspeaker line monitor and protection functions
against over-heating, clip and short-circuit, in addition to forced ventilation at variable speed.
The STV series has a graphical screen on the front panel that allows configurating operation
parameters, and the control and monitoring of the equipment. It also includes three general
indicators: on/standby, link Ethernet (only for ETX-1 and ETX-1CN), and active priority input, and
two indicators per channel: presence of signal/clip and state of channel (indicates 3 different
states).
All versions comply with standard EN-UNE 60849 regarding voice evacuation systems, since the
operation of the audio channel, from the input to the output of the amplifier, is monitored with and
without input signals to the system, therefore ensuring that it is available during an emergency.
All models have DSP per channel for audio control. In addition to the 2 or 4 inputs depending on
the number of amplifier channels, they also include a priority input activated by means of an
external operation.
The entire series includes an expansion bay to assemble remote control and monitoring modules
through Ethernet (ETX-1), or direct audio inputs through CobraNet (ETX-1CN). This module also
includes the features of model ETX-1.
The dimensions of all products are the same for all possible channel configurations, and can be
installed on 2 19” rack units.
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USER'S MANUAL– STV SERIES
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2. DESCRIPTION OF CONTROLS
2.1. BEFORE SWITCHING THE DEVICE:
1. Make sure that the power supply circuits are properly dimensioned and that the power
voltage is stable. To dimension the circuits, check the technical characteristics of the
specific model.
2. Make sure there is correct air circulation from the front of the device towards the back, and
avoid obstructing the air flow. This device has forced ventilation at variable speed
depending on the dissipation needs, in order to maintain the best operation temperature.
Blocking the air inlets or outlets can cause overheating of the device. In case of overheating
the system will protect itself by cutting the audio signal until it recovers the optimum
operating temperature.
3. Check that the loudspeaker lines connected to the amplifier channels exceed the minimum
specified impedance for nominal channel power.
2.2. DESCRIPTION OF CONTROLS. FRONT PANEL:
11
1. Drill holes for assembly on 19” rack
2. “On / Standby” indicator.
“Standby”: The indicator light will be red. In this condition the device will wait for the
amplifier channels to be switched on. The unit’s control and monitoring elements
remain active, allowing the configuration of all the operation parameters. This state
is the same if the device is controlled remotely through an ETX series expansion
module. In this mode, the level of consumption remains low.
“On”: The indicator light will be green. Before indicating “on”, the amplifier will check
the whole system. If everything is correct, then it will go “on”.
3. “Priority” indicator: In normal operating mode, it will remain switched off. When the
priority audio input is activated, the indicator light will be green.
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USER'S MANUAL– STV SERIES
4. “Link” indicator: In case the system uses an expansion module of the ETX series,
the light will be orange to indicate that there exists correct communication with the
LDA remote control system.
5. 128x64 LCD Screen: It allows controlling and monitoring the system locally. It has
contrast and intensity control, and also incorporates dynamic backlighting correction
depending on the lighting of the place where the equipment is located, thus
providing optimum display conditions. It includes screensaver configuration and
turn-off timer to save energy.
6. Navigation control: It consists of five keys, four for direction and one for confirmation
to navigate through the system’s configuration and monitoring menus. Any
parameter that needs to be modified must be confirmed by pressing the “OK” key.
7. “ESC.” Navigation Control: The control key for menu back, “ESC”, allows exiting the
selected menu icon when pressed once, and when pressed consecutively it allows
going backwards in the navigation. In case of parameter modification, as long as
the “OK” key has not been pressed the previous state is recovered by pressing the
“ESC” key.
8. Air inlets for forced ventilation of the amplifier channels, and general temperature of
the device.
9. “CLIP/SIGNAL” and “STATUS” Channel indicators: “CLIP/SIGNAL”: Indicates the
signal level of audio channel X. A green light indicates a normal level of audio signal
output; an orange light indicates a high output level, and a red light indicates “CLIP”
output signal.
“STATUS”: Indicates the status of the amplifier channel:
If the indicator light is red continuously: The amplifier channel is in the mode due to
some problem detected during its operation. In this case, check that there is no
problem of overheating by monitoring the temperature with the appropriate menu.
If the problem is overheating, check that the connected voltage corresponds to the
unit’s specifications,
and that the air inlets/outlets are not blocked or obstructed.
If the problem is not due to overheating, turn the system off by pressing the “power”
button on the back and contact the LDAAuthorised Technical Service.
If the indicator light is red intermittently: It indicates a transitory channel state due to
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some problem detected in the loudspeaker lines with which the amplifier channels
are loaded. In this case, check that the loudspeaker lines are not diverted or in
short-circuit.
If the indicator light is orange: The amplifier channel does not have any
load, the load is of very high impedance, or the loudspeaker line has an
open-circuit fault.
If the indicator light is green: The amplifier channel is working in optimum
conditions.
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USER'S MANUAL– STV SERIES
2.3.DESCRIPTION OF CONTROLS. CONFIGURATION MENU:
2.3.1. NAVEGATION INDICATORS:
IMPORTANT:
It is necessary press the OK key in order to change the settings. If the ESC
key is pressed, it will return to the previous value. The OK key must be pressed foR
selecting the Mode if you are in the Navigation Mode. In another case, we it would
keep in the Navigation Mode between menus.
2.3.2. MENU DIAGRAM:
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