I can help you solve this problem. However you must describe to me which fuse you have replaced. Is it the fuse on the power line or is it a fuse in the speaker line (which I highly doubt). usually this type of amplifier uses two technologies. One is transistors the second is integrated chips. This is in regard to the output stages. I assumed you speaker cables shorted each other while the volume was set at a high level with music playing. Anyway if you are willing I am able to help.
Hi I have the same receiver BUT all my lights and status indicators are
on but I have no sound in any digital input modes - i plug an ipod into
the CD input and I can hear Stereo, Pure Direct and Direct (it is the
sweetest ounding amp i have ever heard) but nothing else works. I can
pass thru to view OSD - no sound on the digital inputs - plugged DVD
player in as well as a CONCAST BOX via Optical Inpiuts that were
correctly configured. no sound coming out? is there a master volume
muting button? i do not have the original repote as well - using
Harmony remote. ideas? is this a fuse? transistors? blown amp, blown
dsp? who knows.
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have you checked the speaker cables ?
Usually the Denon system has a problem with power regulators
if u have any knowledge in electronics i can guide u to repair it
if not .. u have to send it to service.
check for fuses if blown
power regulators mostly are damaged
and or power output transistor damaged
Good luck From Audio-adviser.com
Problem is in either power supply or the Y-Sustain board.
The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.
Often there are fuses on that board - one or more. Check those.
if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.
I hope this will help in solving the problem......
Before doing anything else swap the speaker connections over to make sure that the problem is in the amp and not the speaker / speaker cable.
If that doesn't solve it then it is most likely an internal fuse blown on the amplifier circuit board - they are little tiny glass ones, obtainable from most tv repair shops, but it is important to get the right power rating. Also some of these fuses are 'quick blow' (go instantly there is a fault) others are 'slow' or 'time' blow - take a second or two before they actually blow - make sure you get the right one (timed usually have the letter T next to the power rating)
If the main amp section does not have it's own fuses, then the fuse might have blown, because the amp has gone. However I think it is highly likely that you have taken out the main amp, especially if it is a single IC that does all the work. You should try and determine if the amp section is getting power before replacing it.
check speaker conections. disconnect all the speaker wires and use one speaker that you know that works and connect it to each channel one at a time. most surround sound stereos will not go into surround mode unless all the speakers are connected so make sure stereo is in 2 channel mode to start testing. check all fuses sometimes amp fuse is seperate from power circuit and denon uses relays in 99% of thier units.
This indicates that the system is going into protect mode. First disconnect all speaker wires (with the power cable disconnected). Then turn the unit on and see if it sill shuts aff ofter a few seconds. If it does not, then you have a problem with the speakers or speaker wires. inspect the wires at both ends for frayed strands that may touch. If that all lookd good, plu the speakers in, one at a time, until the problem reappears. Be sure to turn the sytem off before plugging in any speaker just to prevent any accidental short which could be catastrophic. If the system goes into protect mode with all speakers disconnected, you probably have a shorted output transistor.
it sounds like the cone in the centre has blown. Use a 'spare speaker' not one from the system and try it, is should work, but if it was the centre speaker cable that shorted, should you get no sound from the spare it sounds like you have blown that part of the system which will require professional repair. Sorry