1. Pengenalan
Terima kasih kerana membeliasing the Technical Pro DV4000 Home Theater System. This comprehensive package includes the DV4000 receiver/amplifier/DVD player and a pair of Rockville HC85 8-inch in-ceiling speakers. This system is designed to provide a powerful and versatile audio-visual experience for your home entertainment needs, featuring Bluetooth connectivity, USB/SD card inputs, FM tuner, and DVD playback capabilities. Please read this manual thoroughly before operation to ensure proper setup and optimal performance.

Figure 1.1: Technical Pro DV4000 Home Theater System Components
This image displays the main components of the Technical Pro DV4000 Home Theater System, including the central receiver unit, its remote control, and two white circular in-ceiling speakers.
2. Kandungan Pakej
Please check the contents of your package to ensure all items are present and in good condition:
- Technical Pro Professional 4000w Receiver/Amplifier/DVD Player (DV4000)
- Alat Kawalan Jauh
- Kabel Kuasa
- Kabel Audio/Video RCA
- Antena FM
- Pair of Rockville HC85 8" Inch 700 Watt In-Ceiling Home Theater Speakers
- Manual Pengguna (dokumen ini)

Rajah 2.1: Aksesori yang Disertakan
This image shows the various accessories that come with the Technical Pro DV4000 system, including the remote control, audio/video cables, and the instruction manual.
3. Langkah-langkah Keselamatan
To reduce the risk of electric shock, fire, or damage to the unit, please observe the following safety guidelines:
- Sumber Kuasa: Connect the unit only to an AC 110V/60Hz power outlet.
- Pengudaraan: Ensure adequate ventilation. Do not block ventilation openings. Maintain at least 4 inches (10 cm) of space around the unit for proper airflow.
- Air dan Kelembapan: Jangan dedahkan unit kepada hujan, lembapan, titisan atau percikan. Jangan letakkan objek yang diisi dengan cecair, seperti pasu, pada unit.
- haba: Jangan letakkan unit berhampiran sumber haba seperti radiator, daftar haba, dapur, atau radas lain (termasuk amppenghidup) yang menghasilkan haba.
- Pembersihan: Cabut plag unit daripada soket dinding sebelum membersihkan. Gunakan kain kering sahaja.
- Servis: Jangan cuba servis produk ini sendiri. Rujuk semua perkhidmatan kepada pegawai perkhidmatan yang berkelayakan.
- Objek Asing: Jangan masukkan sebarang objek ke dalam bukaan unit.
- Pendawaian Pembesar Suara: Ensure correct polarity when connecting speakers. Incorrect wiring can damage the speakers or the amplebih hidup.
4. Produk Lebihview
4.1 Kawalan Panel Hadapan
The front panel provides access to essential controls and indicators for the DV4000 receiver.

Figure 4.1: DV4000 Front Panel
This image highlights the front panel of the DV4000 receiver, detailing the central volume knob, input selection buttons, display screen, USB/SD card slots, and microphone inputs.
- paparan: Shows current input, track information, FM frequency, and other status indicators.
- Butang Kuasa: Menghidupkan atau mematikan unit.
- Pemilih Input: Cycles through available audio sources (DVD, AUX1, AUX2, FM, USB, SD, Bluetooth).
- Tombol Kelantangan: Melaraskan tahap kelantangan induk.
- Input Mikrofon (MIC1, MIC2): 1/4" jacks for connecting microphones.
- Mic Volume/Echo Controls: Adjust microphone volume and echo effect.
- Port USB: Untuk menyambung pemacu kilat USB.
- Slot Kad SD: Untuk memasukkan kad memori SD.
- Kawalan Bass/Treble: Adjust bass and treble levels for audio output.
- Butang Buka/Tutup: Membuka dan menutup dulang DVD.
4.2 Sambungan Panel Belakang
The rear panel houses all the necessary input and output connections for the system.

Figure 4.2: DV4000 Rear Panel
Imej ini memberikan yang terperinci view of the rear panel of the DV4000 receiver, illustrating the various RCA audio inputs, video outputs (RCA, YUV, RGB), speaker terminals, and the FM antenna connection.
- Audio Inputs (AUX1, AUX2): RCA stereo inputs for connecting external audio devices.
- Input Antena FM: Untuk menyambungkan antena FM yang disertakan.
- Video Outputs (RCA, YUV, RGB): Untuk menyambung ke TV atau paparan.
- Audio Outputs (RCA): Stereo RCA outputs for connecting to another ampalat penghidup atau rakaman.
- Keluaran Pembesar suara: Spring-loaded terminals for connecting main and surround speakers.
- Input Kuasa: Untuk menyambungkan kord kuasa AC.
5. Persediaan dan Sambungan
5.1 Speaker Installation (Rockville HC85 In-Ceiling Speakers)
The Rockville HC85 speakers are designed for flush in-ceiling installation. Professional installation is recommended for optimal results and safety.

Figure 5.1: Rockville HC85 Speaker (Grille Removed)
This image shows a close-up of the Rockville HC85 in-ceiling speaker with its protective grille removed, revealing the woofer and the adjustable swivel tweeter.

Figure 5.2: Rockville HC85 Speakers (Grilles On)
This image displays two Rockville HC85 in-ceiling speakers with their paintable flush-mount grilles attached, ready for installation.
- Pilih Lokasi: Select appropriate locations in your ceiling, ensuring no obstructions (joists, wiring, plumbing).
- Potong: Use the provided template (if applicable) or measure the cut-out diameter (9.3 inches) and carefully cut a hole in the ceiling.
- Pendawaian: Run speaker wire (minimum 16-gauge recommended) from the DV4000 receiver to each speaker location.
- Sambungkan Pembesar Suara: Connect the speaker wires to the spring-loaded push terminals on the back of each HC85 speaker. Ensure correct polarity (+ to + and - to -).
- Lekapkan Pembesar Suara: Masukkan pembesar suara ke dalam lubang pemotong. Penutup pelekapamps will secure the speaker to the ceiling as you tighten the screws on the front baffle.
- Pasang Gril: Once mounted, attach the paintable flush-mount grille.
5.2 Sambungan Sistem
Before making any connections, ensure the DV4000 receiver is turned off and unplugged from the power outlet.
- Connect Speakers to Receiver: Connect the speaker wires from your in-ceiling speakers to the corresponding speaker output terminals on the rear of the DV4000. Match the positive (+) and negative (-) terminals carefully. The DV4000 supports 2 main speakers and 3 surround speakers.
- Connect to TV/Display: Use an appropriate video cable (RCA, YUV, or RGB) to connect the DV4000's video output to your TV or projector's video input.
- Connect External Audio Sources (Optional): Use RCA cables to connect external audio devices (e.g., CD player, cassette deck) to the AUX1 or AUX2 input jacks on the rear panel.
- Sambungkan Antena FM: Attach the included FM antenna to the FM antenna input on the rear panel. Extend the antenna for better reception.
- Sambungan Kuasa: Once all other connections are made, plug the power cord into the DV4000's power input and then into a wall outlet.
6. Arahan Operasi
6.1 Operasi Asas
- Hidupkan/Mati Kuasa: Press the Power button on the front panel or remote control to turn the unit on or off.
- Pemilihan Input: Press the Input Selector button on the front panel or the corresponding source button on the remote (e.g., DVD, AUX, FM, USB, SD, BT) to choose your desired audio/video source.
- Kawalan Kelantangan: Rotate the Master Volume knob on the front panel or use the VOL+/- buttons on the remote to adjust the overall sound level.
- Bes/Trebel: Use the BASS and TREBLE knobs on the front panel to fine-tune the audio's low and high frequencies.
6.2 Main Semula DVD/CD
- Select the DVD input source.
- Press the OPEN/CLOSE button on the front panel or remote to open the disc tray.
- Letakkan cakera DVD atau CD perlahan-lahan ke dalam dulang dengan bahagian label menghadap ke atas.
- Press OPEN/CLOSE again to close the tray. The unit will automatically begin playback.
- Use the PLAY, PAUSE, STOP, NEXT, PREV, and FAST FORWARD/REWIND buttons on the remote for playback control.
6.3 Operasi Bluetooth
- Select the BT (Bluetooth) input source. The display will show "BT" and the unit will enter pairing mode.
- Pada peranti berdaya Bluetooth anda (telefon pintar, tablet, dll.), dayakan Bluetooth dan cari peranti yang tersedia.
- Select "Technical Pro DV4000" (or similar name) from the list of devices.
- Once paired, you can play audio from your device through the DV4000 system.
- Bluetooth range is approximately 45 feet.
6.4 Main Semula USB/Kad SD
- Insert a USB flash drive into the USB port or an SD card into the SD card slot on the front panel.
- Select the USB or SD input source. The unit will automatically detect and begin playing compatible audio/video files.
- Use the playback controls on the front panel or remote to navigate through files and control playback. Supports up to 32GB.
6.5 FM Tuner Operation
- Select the FM input source.
- Press the AUTO SCAN button on the remote to automatically scan and save available FM stations.
- Use the PREV/NEXT buttons to cycle through saved stations or manually tune to a frequency.
6.6 Operasi Mikrofon
- Connect a 1/4" microphone cable to either the MIC1 or MIC2 input on the front panel.
- Adjust the MIC VOL knob to control the microphone's volume.
- Adjust the ECHO knob to add an echo effect to the microphone's output.
7. Penyelesaian masalah
If you encounter any issues with your Technical Pro DV4000 system, please refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada Kuasa | Power cord not connected; Wall outlet not active; Unit is off. | Ensure power cord is securely plugged in; Test wall outlet with another device; Press the Power button. |
| Tiada Keluaran Bunyi | Incorrect input source selected; Volume too low; Speaker wires disconnected or incorrectly wired; Mute function active. | Select the correct input source; Increase volume; Check speaker connections and polarity; Deactivate Mute. |
| Tiada Hasil Video | Video cable not connected; TV input not selected correctly. | Ensure video cable is securely connected to both DV4000 and TV; Select the correct video input on your TV. |
| Bluetooth Tidak Bersambung | DV4000 not in pairing mode; Device Bluetooth off; Device too far. | Ensure DV4000 is on BT input; Enable Bluetooth on your device; Move device closer to the receiver (within 45 ft). |
| Isu Main Semula Cakera | Disc is dirty or scratched; Disc format not supported. | Clean the disc with a soft cloth; Try a different disc; Ensure disc format is supported (DVD, DVD-R, DVD-RW, CD-R, CD-RW, VCD, MP2, MPEG4, DIVX, CD-G). |
8. Spesifikasi
8.1 Technical Pro DV4000 Receiver
- Kuasa Puncak: 4000 Watt
- Voltage: 110V
- Input: RCA (2CH), USB, SD Card (32 GB Max), Bluetooth
- Keluaran Audio: RCA (2CH)
- Output Video: RCA, YUV, RGB
- Keluaran Pembesar suara: Bare speaker wire (2 main speakers, 3 surround speakers)
- Keserasian Main Semula: DVD, DVD-R, DVD-RW, CD-R, CD-RW, VCD, MP2, MPEG4, DIVX, CD-G
- Versi Bluetooth: v3.0 with EDR
- Julat Bluetooth: 45 kaki
- Input Mikrofon: Dual 1/4" with volume and Echo controls
- Ciri-ciri terbina dalam: FM tuner with auto scan, Pal / NTSC Switchable, Cooling fan
- Dimensi (L x W x H): 17" x 10" x 5"
- Berat: 22.2 paun
8.2 Rockville HC85 In-Ceiling Speakers
- Pengendalian Kuasa Puncak: 350 Watts (setiap pembesar suara) / 700 Watts (sepasang)
- Pengendalian Kuasa RMS: 120 Watts (setiap pembesar suara) / 240 Watts (sepasang)
- woofer: Kon Polipropilena 8" dengan Keliling Getah
- Gegelung Suara: Aluminium 1"
- Tweeter: Kubah Mylar, Pusing Boleh Dituju
- Magnet: 20 oz. Ferit
- Terminal: Terminal Push Loaded Spring Berkualiti Tinggi
- Respons Kekerapan: 40Hz - 20KHz
- Sensitiviti: 89dB @ 1w / 1m
- Impedans: 8 ohm
- Kedalaman Pemasangan: 3.03"
- Diameter potong: 9.3"
- warna: Putih (boleh dicat)
9. Penjagaan dan Penyelenggaraan
- Pembersihan: Unplug the unit before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners or aerosol cleaners.
- Penjagaan Cakera: Kendalikan cakera pada tepinya. Pastikan cakera bersih dan bebas daripada calar. Simpan cakera di dalam bekasnya apabila tidak digunakan.
- Pengudaraan: Regularly check that the ventilation openings on the receiver are not blocked by dust or debris.
- Storan: Jika menyimpan unit untuk tempoh yang lama, cabut plagnya dari salur keluar kuasa dan simpannya di tempat yang sejuk dan kering jauh daripada cahaya matahari langsung dan suhu yang melampau.





