AV receivers
AVR-X and AVC-X models such as AVR-X3700H, AVC-X3800H, AVR-X4800H, AVR-X6800H, AVC-A1H and AVR-S760H / S970H.
- Goes into protection mode
- HDMI board / no picture pass-through
- One channel dead or distorted
- No power, standby LED only
Denon repair · Dubai · Independent workshop
Denon AV receiver & amplifier repair in Dubai
A Denon AV receiver stuck in protection mode, an HDMI input that stopped passing picture, or a Denon Home speaker that won't connect. We repair Denon electronics at component level in our Al Quoz workshop.
- Typical 1–2 days
- 3–6 month warranty
- Quote before repair
On the bench
Denon products we repair
AVC-X3800H AV receiver 
Denon Home 350 speaker
Product photos: AuraTech. Retailer listing photos, used only to show the products we repair.
Denon product lines
What we repair
Recent models only. Your model not listed? Send it on WhatsApp and we will tell you if we can help.
Stereo amplifiers & players
PMA-900HNE, PMA-1700NE, DCD-1700NE and other recent hi-fi models.
- No power or relay clicking
- One channel dead
- Network / streaming fault
- Disc not reading
Denon Home & soundbars
Denon Home 150, 250, 350, Denon Home Sound Bar 550 and DHT-S517 / S716H.
- No sound via HDMI ARC / eARC
- Wi-Fi or app setup fails
- Subwoofer not connecting
- Dead after a power surge
Common faults
Common Denon faults and how we check them
| Fault | What we check |
|---|---|
| Amplifier or receiver goes into protect mode | Shorted output stage, failed power-supply rail or overheating. We trace the fault on the bench before replacing anything. |
| No picture or sound through HDMI | HDMI board, HDMI switch chip or firmware fault. We test every input and output with our own sources. |
| One channel silent or distorted | Output transistor, amplifier IC or relay fault. Each channel is tested under load. |
| Dead after a power cut or surge | Fuse, power-supply or standby circuit damage. Often repairable at component level. |
| Bluetooth or Wi-Fi drops, won't pair | Firmware state, antenna or wireless module fault. We reset, update and test before any hardware work. |
| Overheating and shutting down | Blocked cooling, fan or thermal fault, or a failing output stage. We clean, test and repair. |
Process
How a Denon repair works
Message us
Send the model and a photo or video of the fault on WhatsApp.
Drop off or pickup
Bring it to Al Quoz, or book pickup. Free for 3+ devices.
Diagnosis & quote
We find the fault and send you the price. Nothing is repaired without your OK.
Repair & test
Board-level repair, full test, then return with a 3–6 month warranty.
FAQ
Denon repair questions
Are you an authorised Denon service centre?
No. Aleksandar Electronics is not an authorised Denon service centre. We are an independent workshop with a lot of experience repairing Denon products. If your Denon product is still under the manufacturer's warranty, contact Denon or the dealer you bought it from first. We repair out-of-warranty products and products the manufacturer would only replace.
My Denon receiver turns off with 'Protection'. Can you fix it?
Usually, yes. Protection mode means the receiver detected a fault such as a shorted output, a failed power rail or a speaker wiring issue. We test the receiver on our bench, find the cause and quote.
How long does a Denon repair take?
Most repairs take 1–2 working days. If a part must be ordered, we tell you the expected date before you approve the work.
Do you give a warranty?
Yes. Repairs carry a 3–6 month warranty depending on the device and the repair. The period is written on your invoice.
Can you collect my Denon equipment?
Yes. Pickup and delivery in Dubai are free for three or more devices. Pickup of a single device is charged separately. Large systems can be collected together.
Get your Denon working again
Message the model and the fault. We reply during working hours, Mon – Sat 10:00 – 19:00.
Visit the workshop
Al Quoz Industrial Area 4, Dubai
Bring your device in, or message us a photo and the model first. We reply on WhatsApp during working hours.
Mon – Sat · 10:00 – 19:00
- Address
- Capitol Warehouse Complex
Warehouse 1, Unit M-07 (1st Floor)
14C Street, Al Quoz Industrial Area 4
Dubai, UAE - Hours
- Monday – Saturday · 10:00 – 19:00
Sunday · Closed - WhatsApp & phone
- +971 50 844 6504
- info@laptopexpert.ae
Disclaimer: not an authorised Denon service centre
Aleksandar Electronics is not an authorised service centre for Denon. We are an independent workshop with a lot of experience repairing Denon products. Denon trademarks belong to their owners. We are not affiliated with, endorsed by, or sponsored by Denon.
Denon and Denon Home and other product names on this page are used only to describe the products we repair. If your Denon product is still under the manufacturer’s warranty, contact Denon or the dealer you bought it from first.