1. Pengenalan dan Lebihview
This manual provides detailed instructions for the installation, operation, and maintenance of your Speco PBM-30 30W Contractor Series PA Amplifier. Designed for professional audio applications, this amplifier offers robust performance and versatile connectivity options.
The PBM-30 is a 30W contractor series PA amplifier featuring two independent channels, an auto-mute function, and manual muting contacts. It is UL Listed, ensuring compliance with safety standards. The amplifier accepts inputs from two distinct sound sources and provides a variety of output choices, including 4, 8, and 16 ohm, as well as 70 and 25 volt line outputs. Additionally, it includes a music-on-hold output with separate level control and a 600 ohm telephone line input with its own level control.
2. Ciri-ciri Utama
- 30W Contractor Series PA Amplebih hidup
- UL Disenaraikan untuk keselamatan dan kebolehpercayaan
- Two independent input channels
- Automatic mute function for seamless audio management
- Music on hold output with dedicated level control (600 ohm line and one watt 8 ohm)
- 600 ohm telephone line input with adjustable level control
- Manual muting contacts for external control
- Accepts inputs from two distinct sound sources
- Versatile output options: 4, 8, and 16 ohm, plus 70 and 25 volt line outputs
3. Arahan Keselamatan
Please read and follow all safety instructions carefully to prevent injury or damage to the amppengikat. Simpan manual ini untuk rujukan masa hadapan.
- Sumber Kuasa: Sambungkan amphanya kepada voltan bekalan kuasa yang dinyatakantage. Pastikan kord kuasa tidak rosak atau tersepit.
- Pengudaraan: Do not block any ventilation openings. Install in accordance with the manufacturer's instructions, ensuring adequate airflow around the unit.
- Air dan Kelembapan: Jangan dedahkan peralatan ini kepada hujan atau kelembapan. Jangan letakkan objek yang berisi cecair, seperti pasu, di atas peralatan.
- haba: Jangan pasang berhampiran mana-mana sumber haba seperti radiator, daftar haba, dapur, atau radas lain (termasuk amppenghidup) yang menghasilkan haba.
- Servis: Jangan cuba servis produk ini sendiri. Rujuk semua servis kepada kakitangan perkhidmatan yang berkelayakan. Servis diperlukan apabila radas telah rosak dalam apa jua cara, seperti kord bekalan kuasa atau palam rosak, cecair telah tertumpah atau objek telah jatuh ke dalam radas, radas telah terdedah kepada hujan atau lembapan, tidak beroperasi seperti biasa, atau telah terjatuh.
- Pembersihan: Cabut plag produk ini dari salur keluar dinding sebelum membersihkan. Jangan gunakan pembersih cecair atau pembersih aerosol. Gunakan iklanamp kain untuk pembersihan.
4. Persediaan dan Sambungan
Before connecting any components, ensure the amplifier is powered off and unplugged from the mains supply. Refer to the diagram below for a visual guide to the front panel controls.
Gambar 4.1: Panel Depan View of Speco PBM-30 PA Amplifier, showing MIC 1, MIC 2/AUX, BASS, TREBLE, and POWER controls.
4.1 Sambungan Input
- Microphone/Auxiliary Inputs: The amplifier accepts inputs from two sound sources. Connect your microphones or auxiliary devices (e.g., CD player, media player) to the designated input jacks on the rear panel. Ensure proper cable types (e.g., XLR for microphones, RCA for auxiliary) are used.
- Telephone Line Input: Connect a 600 ohm telephone line to the dedicated input. This input has its own level control for adjusting the volume of telephone audio.
4.2 Sambungan Output
- Keluaran Pembesar suara: Connect your speakers to the appropriate output terminals on the rear panel. The amplifier supports 4, 8, and 16 ohm speaker loads. Ensure the impedance of your speakers matches the selected output terminals.
- Pemalar Voltage Output: For distributed audio systems, connect speakers to the 70 volt or 25 volt line outputs as required. Ensure all speakers in a constant voltage system are compatible with the chosen voltage.
- Music on Hold Output: Connect your music on hold system to this output. It provides both a 600 ohm line output and a one watt 8 ohm output, each with separate level control.
4.3 Sambungan Kuasa
Setelah semua sambungan audio dibuat, sambungkan amplifier's power cord to a suitable AC power outlet. Ensure the power switch on the front panel is in the OFF position before plugging in.
5. Arahan Operasi
This section details the functions of the front panel controls and key features of the PBM-30 amplebih hidup.
5.1 Kawalan Panel Hadapan
- Suis kuasa: This is the main power switch for the amplifier. Press to turn the unit ON or OFF. The indicator light will illuminate when the unit is powered on.
- MIC 1 Control: Adjusts the volume level for the microphone connected to Input 1.
- MIC 2/AUX Control: Adjusts the volume level for the microphone connected to Input 2 or the auxiliary audio source.
- Kawalan BASS: Adjusts the low-frequency (bass) response of the audio output. Turn clockwise to increase bass, counter-clockwise to decrease.
- Kawalan TREBLE: Adjusts the high-frequency (treble) response of the audio output. Turn clockwise to increase treble, counter-clockwise to decrease.
5.2 Auto Mute Function
The auto-mute function automatically mutes background music or other audio when a signal is detected on a priority input (e.g., a microphone input for announcements). This ensures that announcements are clear and audible without interference from other audio sources. The sensitivity and priority of the auto-mute function may be configured via internal jumpers or rear panel controls, if available (refer to detailed wiring diagrams for specific setup).
5.3 Manual Muting Contacts
The amplifier includes manual muting contacts, allowing for external control of the muting function. These contacts can be wired to an external switch or control system to manually mute audio output when activated. Consult the wiring diagram in the full technical manual for proper connection of these contacts.
5.4 Music on Hold (MOH) Output
The dedicated Music on Hold output allows you to feed background music to a telephone system's MOH input. Use the separate level control to adjust the volume of the music being sent to the telephone system.
6. Penyelenggaraan
Proper maintenance ensures the longevity and optimal performance of your Speco PBM-30 amplebih hidup.
- Pembersihan: Lap bahagian luar secara berkala amplifier with a soft, dry cloth. For stubborn dirt, use a slightly damp cloth and then dry thoroughly. Do not use harsh chemicals, abrasive cleaners, or solvents.
- Pengudaraan: Ensure that the ventilation openings are clear of dust and debris. Periodically check that nothing is obstructing the airflow around the unit.
- Storan: Jika menyimpan ampkipas untuk tempoh yang lama, cabut bekalan elektrik, bersihkannya dan simpan di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
- Pemeriksaan: Periodically inspect power cords and audio cables for any signs of damage. Replace damaged cables immediately.
7. Penyelesaian masalah
Jika anda menghadapi masalah dengan anda amplifier, refer to the following common troubleshooting steps. If the problem persists, contact qualified service personnel.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Kuasa | Power cord unplugged; Power switch off; Blown fuse; Power outlet fault. | Ensure power cord is securely plugged in; Turn power switch ON; Check and replace fuse if necessary (refer to service manual); Test power outlet with another device. |
| Tiada Keluaran Bunyi | Volume controls too low; Incorrect input selected; Speaker connections loose or incorrect; Mute function active. | Increase MIC/AUX volume controls; Verify input source is active; Check all speaker wiring for secure and correct connections; Check manual muting contacts or auto-mute settings. |
| Bunyi Herot | Input signal too high (clipping); Speaker impedance mismatch; Damaged speaker or cable. | Reduce input signal level; Ensure speaker impedance matches amplifier output; Test with different speakers or cables to isolate the issue. |
| Bunyi Dengungan/Berdengung | Ground loop; Loose connections; Interference from other electronics. | Ensure all equipment is on the same electrical circuit; Check all audio cable connections; Move amppengalir jauh daripada peranti elektronik lain. |
8. Spesifikasi
| Ciri | Perincian |
|---|---|
| Model | PBM-30 |
| Output Kuasa | 30 Watt |
| Saluran | dua |
| Output Speaker | 4 Ohm, 8 Ohm, 16 Ohm, 25V Line, 70V Line |
| Music on Hold Output | 600 Ohm Line, 1 Watt 8 Ohm (with separate level control) |
| Telephone Line Input | 600 Ohm (with level control) |
| Fungsi Khas | Auto Mute, Manual Muting Contacts |
| Pensijilan | UL Tersenarai |
| Berat Barang | 12 paun |
| Pengeluar | Speko |
| ASIN | B005H59JKA |
| Tarikh Mula-mula Tersedia | 14 September 2011 |
9. Waranti dan Sokongan
Speco Technologies products are designed for reliability and performance. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official Speco Technologies webtapak.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact Speco Technologies customer support. Contact details can typically be found on the manufacturer's webtapak atau pada pembungkusan produk.
Sumber Dalam Talian: For the most up-to-date information, FAQs, and additional resources, please visit the official Speco Technologies webtapak: www.specotech.com
