Seikaku Technical Group NF05659 Public Address Amplifier User Manual

: June 6, 2024
: Seikaku Technical Group

Table of Contents

Seikaku Technical Group NF05659 Public Address Amplifier
TECHNICAL SPECIFICATIONS
SAFETY RELATED SYMBOLS
CONNECTION DESCRIPTION IPBX-4O1
CONNECTION DEASCRIPTION lPBX-6O1
IMPORTANT SAFETY INSTRUCTIONS
FCC Statement
INTRODUCTION
CONTROL ELEMENTS
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Seikaku Technical Group NF05659 Public Address Amplifier

TECHNICAL SPECIFICATIONS

Caution
The symbol is used to indicate that some hazardous live terminals are involved within this apparatus, even under normal operating conditions. The symbol is used in the service documentation to indicate that a specific component shall be only replaced by the component specified in that Documentation for safety reasons.

Protective grounding terminal.
Alternating current /voltage.
Hazardous live terminal.
Denotes the apparatus turns on.
Denotes the apparatus turns off, because of using the single pole switch, be sure to unplug the AC power to prevent any electric shock before you proceed your service.

WARNING
Describes precautions that should be observed to prevent the danger of injury or death to the user. Disposing of this product should not be placed in municipal waste and should be separate collection.

CAUTION
Describes precautions that should be observed to prevent the danger of the apparatus.

WARNING

Power Supply
Ensure the source voltage matches the voltage of the power supply before turning ON the apparatus. Unplug this apparatus during lightning storms or when unused for long periods of time.

External Connection

The external wiring connected to the output hazardous live terminals requires installation by an instructed person, or the use of readymade leads or cords.

Do not Remove any Cover
There are maybe some areas with high voltages inside, to reduce the risk of electric shock, do not remove any cover if the power supply is connected. The cover should be removed by qualified personnel only. No user-serviceable parts inside.

**Fuse
** To prevent a fire, make sure to use fuses with specified standards (current, voltage, type). Do not use a different fuse or short circuit the fuse holder. Before replacing the fuse, turn OFF the apparatus and disconnected the power source.

Protective Grounding
Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus. Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal.

Operating Conditions
This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on this apparatus. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

CONNECTION DESCRIPTION IPBX-4O1

CONNECTION DEASCRIPTION lPBX-6O1

Do not use this apparatus near water. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not block any ventilation openings. No naked flame sources, such as lighted candles, should be placed on the apparatus.

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions.
Follow all instructions.
Keep these instructions.
Heed all warnings.
Only use attachments/accessories spec ified by the manufacturer.
Power Cord and Plug
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. Protect the power cord from being walk ed on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
Cleaning
When the apparatus needs cleaning, you can blow off dust from the apparatus with a blower or clean it with a rag etc. Don’t use solvents such as benzol, alcohol, or other fluids with very strong volatility and flammability for cleaning the apparatus
body. Clean only with dry cloth. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance 20cm between the radiator & your body.
Servicing
Refer all servicing to qualified personnel. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so . 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.

The mains plug is used as the disconnect device, the disconnect device shall remain readily operable.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (I ) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

FCC Statement

“This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.”
BT frequency : 2402-2480MHz
F M frequency : 87.5-108MHz

INTRODUCTION

There are many models of PBX series amplifiers that have 40W/60W, power output. professionally designed for schools, department stores and shopping centers. Great protection design, such as overload such as overload, short- circuits of output overheat; and you can use it safely and freely. This new series has many acoustic modules, such as MP3 player BT FM, telephone paging and a monitor for option. Each input volume can be controlled with the corresponding individual input volume control and can be adjusted by means of a master volume and individual bass and treble tone controls. The emergency operation can be made of DC power source 12V/24V, even when AC power fail. They have good performance and supply excellent quality of sound. Besides, users can operate easily.

Features:

Output: RMS 40W/60W.
Tones(BASS/TREBLE); 5 Input volume controls; 1 MASTER;
MP3 player with SD/USB/FM interface;
Impedance output is 40; constant voltage output is 70V, I OOV;
2MIC(06.3)inputs; I AUX(RCA)input;
High current switching power with class-D amplifier (PBX-60);
I . Shalt-unit rack.

CONTROL ELEMENTS

Take the below model with an MP3 player.

FRONT PANEL

POWER ON/OFF

MP3 MODULE
Regarding its function and operation, please see the BGM module description in detail.

MASTER
Adjust the overall gain of your amplifier

BASS
Control the low frequency at the range of± I OdB.Turn clockwise to boost and counterclockwise to attenuate the treble response. Tone is flat at centre.

TREBLE
Control the high frequency at the range of± I OdB.Turn clockwise to boost and counterclockwise to attenuate the treble response. Tone is flat at centre. Control the high frequency at the range of± I OdB.Turn clockwise to boost and counterclockwise to attenuate the treble response. The tone is flat at center.

AUX SELECT SWITCH
Aux l/Aux2 Signal Input select switch

AUX VOL KNOB
The gain of AUX, Adjust clockwise to increase the volume while adjust counterclockwise to decrease the volume.

INPUT 1-2 VOL KNOBS
The gain of input 1-2 .. Adjust clockwise to increase the volume while adjust counter-clockwise to decrease the volume.

Output level indicator.

MP3 Operation Instructions
Before performing the following operations, please confirm that the module is connected to the USB/TF card.

MODE button
Short press mode is to convert between USB-TF card and FM-AUX-BLUET OOTHLong press as invalid button.USS, SD card and AUX input respectively correspond to port insertion, and can automatically enter the corresponding mode state, or can be manually selected. In FM mode, you can listen to the radio by selecting the mode to the FM state, in addition, in places with low terrain, you must connect the external antenna to listen to clear FM radio. In BT mode, use your mobile phone, computer and other devices to search for “VIRE BT” and then click on the connection, after connecting successfully,? you can play music. Note that the above modes can only use one mode alone, and it is impossible to use more than two modes at the same time. After the Bluetooth connection, the battery level displayed by the device is not used as a reference, please refer to the actual battery level displayed by the speaker.Please note that the above modes can only use one mode at a time, and it is impossible to use more than two modes at the same time.

VOL+ In MP3
mode, short press to play the next song, long press to continuously increase the volume; In AUX mode, short press as invalid button, long press to continuously increase the volume; In BT mode, short press to play the next song of BT, long press to continuously increase the volume; In FM mode, Short press to save the next station for playback, long press to continuously increase the volume;

PLAY/PAUSE button
In MP3 mode, Short press for play and pause, fM.pJ USB long press for invalid button; ff,£ 6 In AUX mode, Short press for mute button AUX VOL- PLAY/PAUSE VOL+ MODE In BT mode, when playing music, short press for pause/play button, press 2 times continuously to call back (last number), long-press as an invalid button; When calling, long press to reject the call, short press to hang up when talking; In FM mode, short press for pause/play button, long press to automatically search and save the station;

VOL-
In MP3 mode, short press to play the previous song, long press to continuously decrease the volume; In AUX mode, short press an invalid button, long press to continuously decrease the volume; In BT mode, short press to play the previous song of BT, long press to continuously decrease the volume; In FM mode, short press to save the previous station for playback, long press to continuously decrease the volume;

REAR PANEL