Denon AVC-A1HDA is amply developed, with its all-metal vibration-repressing case establishing an extraordinary first connection.

This is supported by six strong 24-bit/192kHz Burr-Brown DACs, while an additional 24/192 ADC (of marginally unique plan) deals with simple to-advanced change for your simple sources. Denon AVC-A1HDA is able to do significantly more, this film quality experience most requests about the product.

Audio-Video Surround Amplifier (2007-12)

Specifications of Denon AVC-A1HDA

Dimensions: 434 x 217 x 500mm

Weight: 28.5kg

Power output: 150 watts per channel into 8Ω (stereo)               

Surround output: 150W (front), 150W (center), 150W (rear)

Frequency response: 10Hz to 100kHz

Total harmonic distortion: 0.05%

Input sensitivity: 2.5mV (MM), 200mV (line)

Signal to noise ratio: 74dB (MM), 102dB (line)

Speaker load impedance: 6Ω to 16Ω

Digital inputs: WLAN, Ethernet, USB, coaxial, optical

Video Connections: HDMI, component, composite, SVHS

There are a few technical issues which are very common we found in Denon AVC-A1HDA that we will discuss here:- 

Solution:- If there is no power or no LED light or no display then 1st you need to check the power socket by changing it with some other device, if another device is working fine in the same socket that means the power socket(AC line voltage) absolutely fine.

Now you need to check the power cable connecting firmly to the AC power socket of the Denon AV receiver building at the backside cabinet. If it is connected properly that means the system has technical issues which can be solved by doing this, just remove the back cabinet by unscrewing the 8 screws, then check the power supply PCB (circuit) which is built vertically at the AC power input section/side, then check the main fuse, if it is blowing then change the main fuse with the same value( fuse value is measured by Ampere) now probably your system will turn on and solving the problem. 

If the fuse blowing again after changing by new one within a fraction of a second that means the power supply circuit(PCB) is short and you should visit the authorized service centre to check/ change the main Switching IC, bridge rectifier diode, main filter capacitor, 4148 diodes, quarter watts resistor and few low voltage Zener diodes. After doing this your power supply will be absolutely fine and your AV receiver/amplifier will work like earlier.

Fault:- No audio from any channel 

Solution:- Make the system factory reset by pressing and holding the tuner + and tuner – buttons together in standby condition, release the two-button when the display starts flashing at an interval of about 1 second, then follow the instruction on the TV or projector screen, finish all the steps on screen, when complete it then try with input signal through HDMI cable. Hopefully, it will work.

In case, the problem still persists then try to update the firmware through USB which is freely available online.

On the condition that the problem still persists then check all the input signals like analogue coaxial and optical too, if there is no sound on any kind of signal mode that means the problem is in the HDMI card and by replacing or preparing by an authorised service Center the issue will get clear.

If you found the HDMI card is perfect then the problem is in preamplifier or main power amplifier section.