Denon AVR-X2000 no audio

[James981]

Hi everyone,
I have a problem with my denon x2000.
After doing the speaker setup wizard, no sound is coming out of the speakers.
I checked the settings and they are correct.
Taking it apart I found these two blown fuses.
Now I have to change them, but what can it be due to? Do I need to do any other checks before changing them?
Thanks to all

[Agent24]

Re: Denon AVR-X2000 no audio

Depends what the fuses protect. Are they in the power supply? Or do they protect the speaker outputs? Or what? Hard to tell from the photo.

[R_J]

Re: Denon AVR-X2000 no audio

The fuses are for the +5v and -5v, they connect to CN4002 and are the inputs to the +/- 5volt regulators that supply various circuits. Get the service manual. https://www.manualslib.com/manual/10...-Avr-E400.html

[tmaster21]

this fuses blown due the 1 of 4 diodes,or more shorted.I found 2 diodes shorted on botom board. 1 diode shorted and if we don't find it ,it's and avr to garbage...

[danstefan]

Hello everyone,

My Denon AVR-X3400H is completely bricked due to corrupted bootloader in the main CPU.

**Technical details:**
- Model: Denon AVR-X3400H
- Main CPU: Renesas R5F564MLJDFC (RX family)
- Problem: No boot, no response - requires JTAG programming

**What I need:**
Original firmware dump (.hex or .bin format) for JTAG programming from a working AVR-X3400H with the same CPU.

If anyone has a working AVR-X3400H and can create a JTAG dump, or has the firmware file, please help!

Thank you in advance!

[ngvuanh]

Hello everyone,

My Denon AVR-X3400H is completely bricked due to corrupted bootloader in the main CPU.

**Technical details:**
- Model: Denon AVR-X3400H
- Main CPU: Renesas R5F564MLJDFC (RX family)
- Problem: No boot, no response - requires JTAG programming

**What I need:**
Original firmware dump (.hex or .bin format) for JTAG programming from a working AVR-X3400H with the same CPU.

If anyone has a working AVR-X3400H and can create a JTAG dump, or has the firmware file, please help!

Thank you in advance!

Just curious how you know it has corrupted bootloader? I would check main standby power rails like +3.3V and +5.0V.
You also want to check whether power button and CPU has +3.3V.

[danstefan]

Thanks a lot for your kind response.
But
Completely dead at power-on. Does not accept reset according to the manual. However, if I hold down the reset buttons and THEN plug it into the power outlet 230Volts [with the buttons held down], it enters the factory reset/ recovery procedure. Everything proceeds normally and it stays at 100% phase, but it never restarts by itself, regardless of how long it waits, it remains like this."
Thanks in advance