LY PB-480MZ User manual

MODEL:
PUBLIC ADDRESS MIXER AMPLIFIER
AMPLIFIER
Warning:Before attempting to connect,operate or adjust this Amplier,
please read these instructions completely and carefully and save this Manual
PB-480MZ / PB-650MZ

Table of Contents
Introductions ----------------------------------------- 2
Features -----------------------------------------------3
Controls------------------------------------------------ 4
Setups --------------------------------------------------5
Operations-------------------------------------------- 9
Madia module -------------------------------------11
Table of Contents
Block Diagram --------------------------------------12
Specifications --------------------------------------13
Wiring Guide ------------------------------------------5
Connections ------------------------------------------7
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Welcome
Congratulation and thank you for the purchasing PB -480MZ or PB -650MZ, a multi-function
commercial amplier.These ampliers are designed to provide a big impact in sound reproduction
and to produce the best and highest quality audio at an affordable price. We wish you great
enjoyment and satisfaction when using your amplier, whether you are an installation, or
reinforcement engineer.
Although it is neither complicated to install nor difcult to operate your amplier, a few minutes
of your time is required to read this manual for a properly wired installation and becoming familiar
with its features and how to use them. Please take a great care may be needed when moving your
set and are required if it ever becomes necessary to return your set for service. Never place the
unit near radiator, in front of heating vents, to direct sun light, in excessive humid or dusty location
to avoid damages and to guaranty a long reliable use..
Unpacking and Installation
Connect your unit with the system components according to the description on the following pages.
Introductions
Introductions
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* Three microphone and two line inputs with XLR,1/4” TRS jacks and RCA jacks.
* 480Watts(PB -480MZ) and 650Watts(PB -650MZ) rated power output.
The PB -480MZ or PB -650MZ mixer ampliers are comprehensive, all-in-one mixer-amplier
solutions for commercial and industrial applications. These low-cost units provide all necessary
features in a simple building-block format.
* Acceptable wide range(up to 44dB) input level.
* Telephone paging input by Euro block terminal,with LEVEL &DUCKING DEPTH Controls.
* Three layer priority muting.
* USB MP3 Player,SD Card,FM Tuner.
* Advanced protection system includes current limiting, over current and thermal protection.
* Desktop and 19-inches rack mountable type.
* Two bands tone controls.
* Low distortion and low noise level.
* Compact size and lightweight.
* Ideal commercial and industrial use.
Features
Features
* Remote microphone (EM-4) input with Rj45 terminal.
* M.O.H(Music On Hold) output.
* Phantom power for MIC input.
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FRONT PANEL
Controls
Controls
1.Input channel volumes.
[ Figure 1.1 Front panel diagram ]
2.Two bands tone controls ( 100Hz/10KHz ).
3.Master volume control.
4.Indicators ( Protection/Output level/Power ).
5.Power switch.
6.MP3 Player,SD Card,FM Tuner.
7.AUX INPUT
Rear Panel
[ Figure 1.2 Rear panel diagram ]
1.Power cable.
2.Speaker outputs connector.
3.MOH(Music On Hold) Terminal with LEVEL Control.
4.Gain controls for variable input level.
6.PHANTOM ON / OFF Switch
7.TALK OVER Switch.
8.TELE-PAGING Input with LEVEL,DUCKING DEPTH Control.
9.FM ANTENNA
5.Signal input connectors.
COM
1 2 3 4
OU TPU T
Hi -Z
10
8.Output zone selectors
10.Remote microphone station(EM-4) input connector.
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Setups
Installation
CAUTION : Before you begin, make sure your mixer-amplier is disconnected from the power
source, with the power switch in the “OFF” position and all level controls turned completely
down (counterclockwise). You may stack mixer-ampliers without using a cabinet or you may
place a single mixer-amplier on a surface with 12-inches (about 30cm) of air space around
the unit for convection cooling.
We recommends using pre-built or professionally wired balanced line. 22 to 24 gauge cables.
Figure 2.1 shows connector pin assignments for wiring. The RCA input connections can also
be used for unbalanced inputs.
Setups
Wiring guide
Choose input wire and connectors
[ Figure 2.1 Input wire and connectors ]
BALANCED UNBALANCED
Unbalances 1/4” Connector Balances TRS 1/4” Connector
XLR Balanced Wiring Guide
For connection of balanced and unbalanced plugs,
ring and sleeve have to be bridged at the stereo plug
SOURCE TO DESTINATION
straln rellef clamp
sleeve
tip
sleeve
ground/shleld
tip
signal
straln rellef clamp
sleeve
tip
rlng
sleeve
ground/shleld
tip
hot
rlng
cold
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Choose output wire and connectors
For the amplier output connectors, We recommends using pre-built or professionally wired,
high-quality, and heavy gauge speaker wires. You may use EURO blocks for your output con-
nectors. To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loud-
speaker cable connectors.
Using the guidelines below, select the appropriate size wire based on the distance from ampli-
er to speaker. The wire sizes apply to the 4-ohm tap.
NOTE : Custom wiring should only be performed by qualied personnel. Class 2 wiring is re-
quired.
CAUTION : Never use shielded cable for output power wiring.
Setups
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COM
OUTPUT
Hi-Z
21Ω / 100V
16Ω / 100V
PB-480MZ
Connections
INPUT : Connect microphones or balanced line-level sources to mixer-amplier balanced inputs.
Set Gain volume accordingly. Connect unbalanced line-level signals to RCA input connectors.
Connections
Choose input wire and connectors
OUTPUT : Maintain proper polarity on output connectors.
For each output channel, connect the output EURO block terminals to the loudspeaker loads.
Use terminals marked COM and to for constant-voltage speaker loads. 1 4
Oconnect the COM terminal to speaker negative(-) lead; connect one of the other terminals to
speaker positive(+) lead.
The impedance and output voltage are same as following Table 2.1
[ Table 2.1 Output voltage and impedance ]
PB-480MZ
NOTE : Impedances indicated in the table 2.1 represent the total speaker system impedances.
Speaker connection is shown in Figure 2.2
[ Figure 2.2 How to connect speakers ]
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Mixer-amplier can accept variable and wide range input signal with trim pot.
Adjusts the trim pot in a range of 44dB to accept variable external equipments.
Figure 3.2 shows detail input sensitivities.
Mixer-amplier has two layer priority mute function. When higher level source is acti-
vated, other input signals are muted automatically except same priority level source.
Priority Control
Signal input gain control
Operations
Telephone paging
Connect mixer-amplier TELE-PAGING connector to telephone interface unit/PBX like
telephone pager.
You can announce by telephone after dial up to telephone interface unit/PBX.
Operations
[ Figure 3.1 Telephone paging connecon ]
[ Telephone pager/PBX ]
[ Figure 3.2 Acceptable input sensitivity per each channels ]
CH2,CH3,AUX >CH1 > Remote MIC Telephone Paging.
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