1. Sissejuhatus
The JBL Professional CSM-28 is an 8-input, 2-output commercial series audio mixer designed for various applications including background music, security, and paging systems. Its versatile design makes it suitable for environments such as schools, hospitals, restaurants, and fitness facilities. The unit features RJ45 connectors for compatibility with JBL CSR-V in-wall volume controls and includes a universal power supply (100-240 VAC, 50/60 Hz).
Põhifunktsioonide hulka kuuluvad:
- 8 inputs with 2 channel outputs.
- Fanless, space-saving 1U design.
- Independent bass/treble controls for each channel.
- Euro-block type mic/line input and output connectors, and unbalanced RCA inputs for consumer devices.
- Illuminated rings on controls for improved visibility and ease of use.
Joonis 1: Esiosa view of the JBL Professional CSM-28 Audio Mixer. This image shows the compact 1U design and front panel controls.
2. Seadistamine
2.1 Lahtipakkimine ja ülevaatus
Eemaldage mikser ettevaatlikult pakendist. Kontrollige seadet transpordi ajal tekkinud kahjustuste suhtes. Hoidke originaalpakend alles edaspidiseks transportimiseks või ladustamiseks.
2.2 Toiteühendus
Connect the supplied AC power cord to the mixer's power inlet and then to a suitable AC power outlet. The unit accepts universal AC voltages from 100 to 240 VAC, 50/60 Hz.
2.3 Sisend- ja väljundühendused
The CSM-28 features various input and output options. Refer to the rear panel diagram for specific connection points.
- Mikrofoni/liini sisendid: Use Euro-block connectors for balanced microphone or line-level signals.
- RCA sisendid: Utilize unbalanced RCA inputs for connecting consumer audio devices such as CD players or media players.
- Väljundid: Ühendage amplifiers or other audio processing equipment using the Euro-block output connectors.
- JBL CSR-V Control: Use RJ45 connectors for connecting optional JBL CSR-V in-wall volume controls.
Figure 2: Rear panel connections of the JBL Professional CSM-28 Audio Mixer. This image illustrates the various input (Euro-block, RCA) and output (Euro-block) ports, as well as the power inlet and RJ45 connectors for remote control.
3. Kasutusjuhised
3.1 Sisse-/väljalülitamine
Ensure all connections are secure before powering on. Use the power switch, typically located on the front or rear panel, to turn the unit on or off. Allow a few seconds for the system to stabilize after powering on.
3.2 Sisendtaseme reguleerimine
Each input channel has a dedicated level control. Adjust these controls to achieve an optimal signal level without clipping or distortion. Monitor the signal indicators (if present) to ensure proper gain staging.
3.3 Tooni juhtnupud
The CSM-28 features independent bass and treble controls. Use these to fine-tune the tonal characteristics of the audio signal for each channel or output zone, depending on the model's configuration.
3.4 Väljundtaseme reguleerimine
Adjust the master output level controls to set the overall volume for the connected amplification system or speakers. Ensure the output level is appropriate for the listening environment and does not overload downstream equipment.
4. Hooldus
4.1 Puhastamine
To clean the exterior of the mixer, use a soft, dry cloth. For stubborn dirt, a slightly damp Kasutada võib õrnatoimelist mitteabrasiivset puhastusvahendit ja lappi. Enne puhastamist veenduge, et seade on välja lülitatud ja toiteallikast lahti ühendatud. Vältige tugevate kemikaalide või lahustite kasutamist.
4.2 Ventilatsioon
The CSM-28 features a fanless design, relying on passive cooling. Ensure that the ventilation slots (if any) are not obstructed to allow for proper heat dissipation. Do not operate the unit in enclosed spaces without adequate airflow.
4.3 Säilitamine
Kui mikserit pikemat aega ei kasutata, hoidke seda jahedas ja kuivas kohas, eemal otsesest päikesevalgusest ja äärmuslikest temperatuuridest. Ladustamise või transportimise ajal on kaitsmiseks soovitatav kasutada originaalpakendit.
5. Veaotsing
| Probleem | Võimalik põhjus | Lahendus |
|---|---|---|
| Heliväljund puudub |
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| Moonutatud heli |
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| Sumin või müra |
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6. Tehnilised andmed
| Funktsioon | Detail |
|---|---|
| Mudeli number | CSM28 |
| Sisendid | 8 (Mic/Line Euro-block, RCA) |
| Väljundid | 2 (Euro-block) |
| Toiteallikas | 100-240 VAC, 50/60 Hz (Universal) |
| Kauba kaal | 7.5 naela (3.4 kg) |
| Toote mõõtmed (P x L x K) | 17.2 x 11.9 x 1.7 tolli (43.7 x 30.2 x 4.3 cm) |
| Ühenduvustehnoloogia | Euroblock, RCA |
| Juhtnupud | Independent Bass/Treble, Input Level, Output Level |
7. Garantii teave
JBL Professional products are covered by a limited warranty. The specific terms and duration of the warranty may vary by region and product. Please refer to the official JBL Professional website or your local distributor for detailed warranty information and registration procedures. Keep your proof of purchase for warranty claims.
For warranty service, contact JBL Professional customer support or an authorized service center.
8. Toetus
For technical assistance, product inquiries, or service requests, please contact JBL Professional support through their official website. Online resources, including FAQs and additional documentation, may also be available.
JBL professionaal Websait: https://pro.harman.com/brands/jbl