JBL 2412H Factory Replacement Driver Instruction Manual

1. Pengenalan

This instruction manual provides essential information for the proper installation, operation, and maintenance of your JBL 2412H Factory Replacement Driver. This driver is designed to restore the original performance of compatible JBL speaker systems. Please read this manual thoroughly before proceeding with installation.

2. Produk Lebihview dan Ciri

The JBL 2412H is a genuine factory replacement compression driver, specifically engineered for various JBL speaker models. It ensures accurate sound reproduction and durability.

• Complete brand new factory JBL 2412H driver, part # 125-10000-00X.
• Features a 1-3/8 inch thread-on mounting mechanism.
• Dimensions: Approximately 3-3/8 inches (86mm) wide x 2-1/8 inches (54mm) tall.
• Nominal Impedance: 8 ohm.
• DC Resistance (DCR): 4.2 ohm.

Imej 2.1: belakang view of the JBL 2412H replacement driver. This image displays the back of the driver unit, featuring the JBL brand logo, the model number '2412H', and the manufacturing origin 'MADE IN MEXICO'. A barcode label is also visible on the side.

Imej 2.2: Depan view of the JBL 2412H replacement driver. This image shows the front of the driver, highlighting the protective mesh over the diaphragm and the threaded throat for horn attachment. The terminal connections are visible at the bottom.

3. Persediaan dan Pemasangan

Proper installation is crucial for optimal performance and longevity of the driver. If you are unsure about any steps, it is recommended to seek assistance from a qualified audio technician.

1. Keselamatan Diutamakan: Before beginning any work, ensure the speaker system is completely powered off and disconnected from all power sources.
2. Access the Old Driver: Carefully open the speaker enclosure to gain access to the existing driver. Note how the old driver is connected and mounted.
3. Putuskan sambungan dan Keluarkan: Disconnect the wires from the old driver's terminals. Unscrew or unthread the old driver from its mounting point.
4. Periksa Pemasangan: Clean the mounting surface and inspect the horn throat for any debris or damage.
5. Pasang Pemacu Baharu: The JBL 2412H uses a 1-3/8 inch thread-on mechanism. Carefully thread the new driver onto the horn throat. Do not overtighten, as this can damage the driver or horn. Tighten until snug.
6. Sambungan Pendawaian: Connect the speaker wires to the new driver's terminals. Ensure correct polarity (positive to positive, negative to negative) as indicated on the driver and speaker wiring. Incorrect polarity can lead to phase issues and degraded sound quality.
7. Kandang Selamat: Carefully reassemble the speaker enclosure, ensuring all screws are tightened and seals are properly seated.
8. Ujian: Connect the speaker system to an appropriate amplifier and test at a low volume level to confirm proper operation before increasing isipadu.

4. Pertimbangan Operasi

Once installed, the JBL 2412H driver operates as part of your speaker system. Ensure that the amplifier used is compatible with the speaker's impedance (8 ohms for this driver) and power handling capabilities to prevent damage to the driver or amplebih hidup.

5. Penyelenggaraan

The JBL 2412H driver is designed for long-term reliability and requires minimal maintenance.

• Pembersihan: Keep the speaker system, including the driver's exposed parts, free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using liquid cleaners directly on the driver.
• Keadaan Persekitaran: Operate and store the speaker system in a dry environment, away from extreme temperatures and direct sunlight.
• Pemeriksaan: Periodically inspect the driver and its connections for any signs of wear or damage.

6. Penyelesaian masalah

If you experience issues after installing the replacement driver, consider the following common troubleshooting steps:

• Tiada Bunyi:
  • Check all wiring connections to ensure they are secure and correctly polarized.
  • Sahkan bahawa amppenyambung dihidupkan dan berfungsi dengan betul.
  • Pastikan sumber audio aktif dan menghantar isyarat.
• Bunyi Herot:
  • Reduce the volume level. Overdriving the speaker can cause distortion.
  • Periksa sambungan yang longgar atau pendawaian yang rosak.
  • Memastikan amplifier's output impedance matches the speaker's impedance.
• Bunyi Selang-seli:
  • Inspect all cables and connections for intermittent contact.
  • Check for any physical damage to the driver or speaker components.

If problems persist after performing these checks, contact JBL customer support or a qualified service technician.

7. Spesifikasi

8. Waranti dan Sokongan

This JBL product is covered by the manufacturer's standard warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official JBL website. For technical support, service, or to inquire about replacement diaphragms, please contact JBL customer service directly.

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9. Maklumat Keselamatan

Sila patuhi langkah berjaga-jaga keselamatan berikut:

• Always disconnect power from the speaker system before installing or servicing components.
• Handle the driver carefully to avoid damaging the diaphragm or voice coil.
• Do not expose the driver to moisture or extreme temperatures.
• Ensure proper ventilation for speaker enclosures to prevent overheating.
• Jauhkan daripada kanak-kanak.