1. پیژندنه
This manual provides essential information for the safe and efficient operation of your TOA A-848D Mixer/Digital Amplifier. Please read this manual thoroughly before use and retain it for future reference. The A-848D is a versatile mixer amplifier designed for various audio applications, offering up to eight inputs and 480W of power, with features like IP control and onboard DSP.
2. د خوندیتوب مهمې لارښوونې
- د بریښنا سرچینه: Connect the unit only to a 120 V AC, 60 Hz power supply. Ensure the power cord is securely plugged in.
- وینټیلیشن: د هوا د بهېدو لارې مه بندوئ. د یونټ شاوخوا کافي هوا جریان ډاډمن کړئ ترڅو د ډیر تودوخې مخه ونیول شي.
- رطوبت: Do not expose the unit to rain or moisture. Avoid placing objects filled with liquids, such as vases, on the apparatus.
- بهرني شیان: Do not insert any objects into the unit's openings.
- خدمت کول: ټول خدمات وړ خدماتو پرسونل ته راجع کړئ. د دې محصول د خدمت کولو هڅه مه کوئ.
- ځمکني کول: د برقی شاک څخه د مخنیوي لپاره مناسب ځمکني کول ډاډمن کړئ.
3. د بسته محتويات
ډاډ ترلاسه کړئ چې ټول توکي په کڅوړه کې شتون لري:
- TOA A-848D مکسر/ډیجیټل Ampلايف
- د بریښنا تار
- Removable Terminal Blocks (various sizes for inputs/outputs)
- د کارونکي لارښود (دا لاسوند)
4. محصول ختم شوview
4.1 مخکښ پینل
Figure 4.1: Front Panel of the TOA A-848D. This image displays the front of the amplifier, featuring six input level controls, two module level controls, Bass and Treble tone controls, a Master volume knob, and a power button. An LED display shows output levels, and status indicators for Error, Over Current, Thermal Protect, LAN Connect, Emergency, Priority, and CPU Run are visible.
- INPUT 1-6 Level Controls: Adjust the input level for each of the six audio inputs.
- MODULE 1-2 Level Controls: Adjust the input level for optional 900 Series modules.
- BASS/TREBLE Tone Controls: Adjust the low and high frequency response of the output.
- د ماسټر حجم کنټرول: د ټولیز محصول حجم تنظیم کړئ.
- د بریښنا تڼۍ: واحد فعال یا بندوي.
- LED Level Meter: Displays the output signal level.
- د وضعیت شاخصونه: LEDs for Error, Over Current, Thermal Protect, LAN Connect, Emergency, Priority, and CPU Run.
4.2 شاته پینل
Figure 4.2: Rear Panel of the TOA A-848D. This image shows the rear connections, including the AC power inlet, speaker outputs, remote control terminals, various input terminals (MIC/LINE, phantom power switches), LAN port, pre-amp out, and slots for two 900 Series modules. Dip switches for module settings are also visible.
- د AC بریښنا داخلول: چمتو شوي بریښنا تار دلته وصل کړئ.
- د سپیکر محصولات: Terminals for connecting loudspeakers.
- POWER REMOTE OUT: For remote power control.
- EMERGENCY OUT: For emergency system integration.
- INPUT 1-4 (MIC/LINE): Electronically-balanced removable terminal blocks. Phantom power (24V DC) is switchable for INPUT 1-4.
- INPUT 5-6 (MIC/LINE/RCA): Electronically-balanced removable terminal blocks for MIC, or unbalanced RCA pin jacks for LINE.
- LAN پورټ: For network connection and IP control.
- REC بهر: د ثبتولو لپاره د RCA محصول.
- PRE AMP بهر: RCA output for connecting to an external power ampلايف
- MODULE 1-2 Slots: Bays for installing optional 900 Series modules.
- DIP سویچونه: Various switches for configuring module functions, phantom power, and input types.
5. ترتیب او نصب کول
- ځای په ځای کول: ځای په ځای کړئ amplifier on a stable, level surface with adequate ventilation. Avoid direct sunlight, heat sources, and excessive dust or moisture.
- د سپیکر اړیکه: Connect your loudspeakers to the appropriate speaker output terminals on the rear panel. Ensure correct polarity (+ to + and - to -). Refer to the speaker impedance and power handling specifications.
- د وسیلې پیوستون:
- For microphones or line-level devices, connect to INPUT 1-6 using the removable terminal blocks.
- If using condenser microphones, activate the phantom power switch for the corresponding input on the rear panel.
- For line-level devices with RCA outputs, use INPUT 5 or 6 RCA jacks.
- Module Installation (Optional): If using 900 Series modules, carefully insert them into MODULE 1 or 2 slots on the rear panel. Configure the associated DIP switches as required by the module's instructions.
- د شبکې اتصال (اختیاري): For IP control and monitoring, connect an Ethernet cable from your network router/switch to the LAN port.
- د بریښنا پیوستون: Ensure all audio connections are made before connecting the power cord. Plug the supplied power cord into the AC Power Inlet on the rear panel, then into a suitable 120 V AC, 60 Hz wall outlet.
6. عملیاتي لارښوونې
- پاور آن: Press the Power button on the front panel. The unit's indicators will illuminate.
- د لومړني حجم ترتیبات: Before playing audio, set all INPUT level controls and the MASTER volume control to their minimum positions.
- Adjusting Input Levels:
- د خپل سرچینې وسیلې څخه آډیو غږول پیل کړئ.
- Slowly increase the corresponding INPUT level control until the LED level meter shows a healthy signal without clipping (avoiding the red segment).
- Adjusting Master Volume: Once individual input levels are set, slowly increase the MASTER volume control to achieve the desired overall output level.
- د ټون کنټرول: Use the BASS and TREBLE controls to fine-tune the audio's low and high frequencies to suit your preference or room acoustics.
- IP Control (if connected): ته لاسرسی ampژوندی کوونکی web interface via its IP address (refer to network setup instructions for details) to configure advanced settings, monitoring, and remote control.
- بندول: To turn off the unit, press the Power button.
7. ساتنه
- پاکول: Disconnect the power cord before cleaning. Use a soft, dry cloth to wipe the exterior of the unit. Do not use liquid cleaners or aerosols.
- وینټیلیشن: په دوره یي ډول وګورئ چې د هوا د تودولو دروازې له دوړو او کثافاتو څخه پاکې دي.
- ذخیره کول: که چیرې یونټ د اوږدې مودې لپاره ذخیره کوئ، نو له بریښنا څخه یې جلا کړئ او په یخ او وچ ځای کې یې وساتئ.
8. ستونزه حل کول
| ستونزه | احتمالي لامل | د حل لاره |
|---|---|---|
| هیڅ ځواک نشته | د برېښنا تار نه دی وصل شوی؛ د برېښنا ساکټ خراب شوی؛ د واحد فیوز چاودېدلی دی. | Check power cord connection; Try a different outlet; Contact service personnel for fuse replacement. |
| د غږ تولید نشته | Master volume too low; Input level too low; Speaker connections incorrect; Mute function active; Source device not playing. | Increase Master volume; Increase input level; Check speaker wiring and polarity; Check for mute settings (if applicable); Verify source device operation. |
| تحریف شوی غږ | Input level too high (clipping); Speaker impedance mismatch; Faulty cable. | Reduce input level; Ensure speaker impedance matches amplifier; Replace audio cables. |
| غږ او شور | Ground loop; Poor cable shielding; Nearby electrical interference. | Ensure proper grounding; Use shielded cables; Move unit away from interference sources. |
| Thermal Protect LED active | Unit overheating due to blocked ventilation or excessive load. | Turn off unit, allow to cool; Ensure ventilation is clear; Reduce output load if possible. |
که چیرې د دې حلونو له هڅه کولو وروسته هم ستونزه دوام ومومي، مهرباني وکړئ د وړ خدماتو پرسونل سره اړیکه ونیسئ.
9. مشخصات
| فیچر | تفصیل |
|---|---|
| ماډل | A-848D |
| د بریښنا سرچینه | 120 V AC ، 60 Hz |
| درجه بندي شوي محصول | 480 W |
| د بریښنا مصرف | 621 W (rated output), 103 W (UL62368), 200 mA or less (power OFF) |
| د تعدد ځواب | 50 Hz to 20 kHz ±3 dB (1/8 rated output) |
| تحریف | 1 % or less at 1 kHz, rated power |
| د ټون کنټرول | باس: ±10 dB په 100 Hz، ټریبل: ± 10 dB په 10 kHz |
| د شور تناسب ته سیګنال | 88 dB or more (Master min), 76 dB or more (Master max), 55 dB or more (INPUT 1 to 6) (A-weighted) |
| Inputs 1, 2 | -60 dB (MIC)/-20 dB (LINE) selectable, 600 Ω, electronically-balanced, removable terminal block (3.81 mm, 3 pins). Phantom power (24 V DC, ON/OFF switchable). |
| Inputs 3, 4 | -60 dB, 600 Ω, electronically-balanced, removable terminal block (3.81 mm, 3 pins). Phantom power (24 V DC, ON/OFF switchable). |
| Inputs 5, 6 | MIC: -60 dB, 600 Ω, electronically-balanced, removable terminal block (3.81 mm, 3 pins). LINE: -20 dB, 10 kΩ, unbalanced, RCA pin jack x 2. |
| عملیاتي رطوبت | 85% RH یا لږ (نه کنډیشن) |
| ختم | پینل: ABS رال، تور |
| د توکي وزن | ۲.۴۵ پونډه |
| د چینلونو شمیر | 8 |
| د ارتباط ټیکنالوژي | معاون |
10. تضمین او ملاتړ
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official TOA webسایټ. هڅه مه کوئ چې واحد پخپله ترمیم کړئ، ځکه چې دا ممکن ستاسو تضمین باطل کړي.
