Question about Onkyo DV-CP704 DVD Player

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Onkyo DV-CP704 will not turn on.

My Onkyo DV-CP704 DVD changer will not come out of stanby mode. The standby LED is lit so the unit is recievine power. I tried unplugging then pluggine back in to reset the unit but that did not work. Any suggestions would by greatly appreciated.

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  • ssh1 Dec 27, 2007

    I have the same problem. I've pulled the cover off, pulled out the CDs/DVDs, checked the connections, etc. I think the dang thing is dead. Second time with an Onkyo DVD player.

  • yankee9905 Jan 01, 2008

    I have the same problem but I have a disc ingaged in the player and I can not get it out even with the cover off. any ideas.

  • Anonymous Jan 05, 2008

    Onkyo dv-cp704 will not turn on

  • maramouse Jan 05, 2008

    We've had the Onkyo DV-CP704 for about a year, and we did not have any problems until recently. The machine would not turn on, and even trying to reset it according to the manufacturer's directions would not get a response. We've tried to unplug the machine and then plug it back in a little while later, but the machine would still not respond. Some mornings after leaving the machine alone for many hours, it would turn itself on and open, but when I attempted to use the controls to test a DVD, we'd end up stuck in standby mode again. At this point we also have a DVD stuck in the machine and are about to take it back to the store to see what repairs or exchange options are available under the warranty. We've been on hold with Onkyo for more than 30 minutes today trying to find out how to at least get out the DVD that we need to return to the video rental store!

  • Anonymous Jan 06, 2008

    Encountered the exact same problem much like maramouse describes and I too have had the player for almost a year. No problems until last night when the player became unresponsive and wouldn't initially turn on. Then turned on but wouldn't open. Would open but then wouldn't rotate. Wouldn't function from the remote either at times. Very sporadic. Unplugged it, left it for a while, plugged it back in. Still nothing. Left it overnight. Tried it this morning it starts working. Tested it with a DVD. It played for about 30 minutes and then it wouldn't respond to the remote or any amount of button pushing on the unit. Plugged it in, unplugged it a few times, pushed 'stop' and 'power' buttons at same time as someone else suggested and was finally able to get the bugger to open and give me my DVD back. Now of course I don't trust the thing. Has pretty much become an expensive door stop overnight. Very disappointing. Have never had issues with onkyo previously and was disturbed to see that others are experiencing the same issue pretty much at the same time. Not entirely certain what the desirable end game for this could be. Won't get any money back I'm sure and do I really want another one of these? Pay for a repair? I don't think so.

  • WillisV Feb 07, 2008

    Same problem as all others. Had the player for about a year and then the erractic behavior started. Wouldn't skip disks, wouldn't un-pause after pausing, gets stuck in standby mode and then magically in the morning turns on and opens up. Infuriating.

  • thepmpitstop Jan 30, 2009

    Wow, it sounds like Onkyo has a serious potential recall issue.

    I have the exact same problem with the player being stuck in stand by mode. I do not have a solution to the problem but, I was able to get my six discs about by unplugging the dvd player and waiting for the standby light to turn off. I then held the eject button on while I plugged the dvd player back in. Doing this allowed the player to turn on and open the table.

    Please email me at if you get a solution.



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I was recently given a DV-CP704 with similar problems. I fixed my problem, well sort of - read on. I did not have a schematic so I decided to start by checking power supply voltages. I noticed a fluctuating voltage on the K0 pin. This is located on a connector on a circuit board under the disk drawer, and the connector services a cable harness coming from the front panel controls. NOTE: before removing or installing connections, I unplugged the player power cord first then plugged it back in. Not knowing where the voltage was originating from I decided to unplug the front panel connector. The voltage on the K0 pin of this circuit board stabalized at +5 volt and was not fluctuating. I traced out where this pin went to the front panel and among other places it went to the power on/off switch and the drawer open/close switch. I restored the front panel connection and while monitoring the voltage on K0 I noted that when I press either the power on/off button or the drawer open/close button this voltage would go low, not to zero but to some lower voltage but when I released the button the voltage would once again fluctuate. While watching the voltage, if I pressed the power on button when the voltage was near +5 volts, the unit would turn on and off. To me it seemed that this voltage should be stable at +5 volts with no button press and should go low only when there was a button press. Next I decided to unplug the harness that went to the drawer open/close circuit board. The voltage on K0 was still fluctuating so I restored this connection. Then I unplugged the harness that went to the power on/off circuit board. AHHHHH, the voltage on K0 was now steady. I removed this small power switch circuit board. Not much to it, some switches, capacitors, LED etc. I did not see any obvious issues with the circuit board. I decided that either the power switch or the small capacitor across the power switch contacts were breaking down causing the K0 voltage to fluctuate. I decide that the power switch was the easiest to remove so I unsoldered and removed it, plugged the board back in. Now I can power on and off by jumpering where the switch was. The K0 voltage is steady and all other buttons work properly. I assumed that the problem was the power switch. I checked the switch with a high impedance Fluke ohmmeter but to my supprise I did not see any problem with the switch. I decided to reinstall the power switch to recreate the problem however now everything is working normally. I can only assume that the heat I applied to the switch during unsoldering somehow fixed the switch by melting or burning away the problem. In my case it was the power switch however all of the tactile switches appear to be the same type so if there is an inherent problem with these switches, soldering or cleaning I would assume it could have been any one of them. If you want to give this a try, remove the cover, remove the 3 screws that secure the front bezel on the bottom of the player. There are two small clips that need to be lifted to release the front bezel so it can be removed from the player and flipped down to gain access to the back while it is still attached electrically. Attach your voltmeter negative lead to the main chassis (ground) and with the positive lead measure the voltage on the power switch pins. One pin is ground so it should read zero or close to it. The other is the K0 signal and it should be at +5 volts until the button is pressed. I don't know about any of the other buttons but they may also operate in a similar fashion. I hope this may help some of you.
Tom Ulrich

Posted on Feb 02, 2009

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Has Onkyo provided a recall for this. Owned lots of Onkyo products. Always great, but experiencing the same problem about a year after ownership. Very frustrating.

Posted on May 15, 2010


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