Denon DVD 910 won't power up. Light goes off then on.
My Denon DVD-910 has a faint red light on the ON/STANDBY switch. When you press any button, including the ON/STANDBY switch, the power light goes out and comes back on after about 5 seconds. The light is very dim. There is no response from any button. Won't power up, won't eject. I checked the fuse and it appears to be okay. What could be the problem?
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Re: Denon DVD 910 won't power up. Light goes off then...
Possibly a power supply problem, not enough power.
Could be these:
- dried up filter capacitors (electrolytic) - these include: main filter capacitor (the biggest one),
any final filter capacitors at each voltage output section, also at the oscillator end.
Check for any blown up, leaked or (partially) shorted capacitors.
- burnt out components (resistors, diodes).
Replace these (assuming you can still determine the proper value or type).
- poor solder contacts.
Remove the old solder and resolder the pins.
Dried, leaked or blown up capacitors may cause the power supply to crash down (or cycle with very low power output).
Burnt out components may act as a short circuit line, a change in conductivity (resistance) or as an infinite resistance (open contacts).
Poor solder contacts (so called "cold contacts") originate from bad soldering (at the factory), being further loosened by component overheating and tensile stresses (moving your equipement from place to place causes the circuit board to bend a little bit each time, and this, in turn loosens the solder contacts even further, causeing more overheating which may melt the solder, and so on).
You can tell a poor solder contact from a good one: bad ones will have a circular crack in the solder around the pin - try moving the pin a bit with a pair of tweezers - if it moves, there's your bad contact (you'll need a good light source and possibly a magnifying lens to spot these).
hopefuly you can get closer to a solution using these hints.
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Save the information currently stored in your Denon receiver, such as device commands and multi-zone controls. Some Denon receivers can control multiple rooms and each room needs to be setup properly to provide the correct controls. If the receiver was installed professionally it may be best to contact the installer before resetting the device.
Press the "Power" button or the "On/ Standby" button to shut off the receiver. On some receivers it is best to press the button on the device instead of the remote as the remote will normally put the receiver in standby mode. Ensure the display and all other lights on the device are off. Do not unplug the Denon receiver as it will not reset.
Press the "Power" button and at the same time press two buttons on the front panel, which are determined by the model Denon you own. Most receivers identify the two buttons inside the user's manual, while some older Denon receivers require you contact Denon for the right button combination. For example, some Denon models require the "Standard" and "DSP Simulation" buttons to be pressed simultaneously.
The display will start flashing at about one second intervals. Release the two buttons. Turn on the receiver by pressing the "Power" or the "On/ Standby" button to verify the previous settings and saved radio stations have been erased. If the interface does not flash, the reset was not complete and needs to be re-done. Re-enter the previous settings to ensure there are no further issues with the receiver.
The lightening causes a strong electro magnetic field to build up very quick and also break down. This pulse can induce a huge current in electronic equipment, causing damage in semiconductors.
The damage can be in any of the components in your Denon. It also could be only one semiconductor. FET's and MOS FET's are the most vulnerable.
Without a service manual, tools and the Denon on my desk it would be impossible to tell what is damaged.
But I would trust not any component in the player.
Also read ESD and what happens direct and what can happen when times goes bye.
Are you getting a standby light at all? Is it flashing? Do you here a click when you plug the unit in? If the answer is no to all of these then you blew a fuse. If you do have soome sort of standby light, then your set is in protect mode. More than likely for a blown channel. If no lights, but you ar egetting a click, you could have a bad transformer. Use a DVM and see if it is open or not. Good luck
i have a denon 1720 dvd player. When you press the power button it comes on for 3 seconds then the power button turns back red and powers off. If you press the eject button within the 3 seconds the tray opens and the power button stays green. As soon as you close the tray the power agin goes to red. i have a denon 1720 dvd player. When you press the power button it comes on for 3 seconds then the power button turns back red and powers off. If you press the eject button within the 3 seconds the tray opens and the power button stays green. As soon as you close the tray the power agin goes to red. Can you help? thanks thanks
Verify that the tray is empty/no disc in the player;
Shut down/off with the front panel On/Off button and not the standby;
Press and hold the Open/Close, Play and Skip Reverse (I<<) buttons;
Maintain pressing on the above buttons and Power-ON the player with the On/Off button, (again while still holding the above buttons till the "Denon 2910" disappears from the display);
pls wait till LOADING completes and the front panel would display 0:00:00;
Using the remote control, enter 7, 3, 1, 9, 4, 6, 2, & 8;
The Denon 2910 will go into standby mode. Soon as it is on standby, pls press the Standby button on the front panel;
Pls verify region free update by pressing the Stop and Skip Forward (>>I) buttons on the front panel. The display would show “Region_Ax” The x would be the former region number that the Denon 2910 is locked into;
Should it not work ouot as expected, pls redo all the above steps.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.
Receiver turns on Green but on pressing button again for red light standby, red light will not come on for this Denon receiver. Recently light came on saying Panel Lock is on. I was not able to get tuner to work.