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Error U99 disc stuck in machine - Panasonic DVD & Blu-Ray Players

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  • star lake Aug 08, 2008

    dvd gets stuck the player goes through self check sometimes for up to an hour then the u99 errror code appears , self check starts again leave it then eventually it resets itself. but this error is now happening everyday

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1 Answer

Neat Things

I have also discovered a number of special things you can do using special key presses. These have not been documented in any of the user manuals. As an aside, one time I was trying to manually set the clock. There is an automatic clock setting mechanism, but it's never correct. Even if it is, if the program you are recording starts 1 second early, it looks like it started at "8:59 pm" instead of "9:00 pm". The way I set the clock is 30 seconds before the top of the minute (At exactly 30 seconds after 9:00, my clock goes to 9:01). This way, you will have a ±30-second window at the top of the hour to get the time-stamp correct. At any rate, I was trying to set the clock manually, but that function was "grayed out". I tried the "Reinitialize Settings", but that didn't help. I tried to change the TV-Guide settings, but that didn't help either. I tried to switch between cable and TV, but that didn't help (and somehow even that became grayed out). I called Panasonic Tech Support. I was told that my system RAM had gotten corrupted and I had to send the unit in for service! This made no sense to me. I asked her if there wasn't a way to clear the RAM back to some starting point. I was told there wasn't, and please send the unit in for service. Well, as it turns out, there IS a way to do that! (See Commands) Another time, I (somehow?) managed to make the DVD Drive tray "Lock". If I tried to eject a DVD, it would display "LOCK" and refuse to open. At least this time, when I called tech support, I was told what to do - but it really should have been in the manual.

Commands

To toggle the disk eject from "LOCK" to "UNLOCK": With the unit ON, press and hold "Power" and "Stop" for 5 seconds.

To eject a disk if the unit won't operate (U99, etc.): With the unit OFF, press and hold "Power", "Stop" and "Channel Up" for 5 seconds.

To initialize ALL parameters to factory defaults: With the unit OFF, press "Skip Rev" ( |<< ) and "Time Slip" and "Open/Close" for 5 seconds.

To enter "Service Mode": With power off, press "Stop" and "Time Slip" and "Open/Close" for 5 seconds. "SERVICEMODE 00" is displayed.

What follows are the more useful commands you can perform. You use the remote to key in a 2 number value. You can usually return back to the "Service Mode" by entering "00". If you get stuck, hold the power key for 10-12 seconds or until the unit shuts off. Try to avoid unplugging the unit while in service mode. In fact, because losing power while writing to either the hard disk or a DVD-R or DVD-RAM can lose everything, I use a small "UPS" (Battery backed-up Power Source) to power my units. This way, if the AC Mains go out, I don't damage anything…

Oh, and DO NOT experiment with any number combinations that aren't documented here. If you do, you may wish you hadn't…

00 = Return to Service mode start.

02 = Display Firmware Versions. The display will show the following for 3 seconds each:

1. DVD Region Code (should be Region 1 for USA)

2. Main Firmware Version (0950DL, or something like that)

3. Timer firmware Version (0110DC, or something like that)

4. DVD Drive firmware version (J125, or something like that)

5. ROM checksum (I think) - It should be all zeroes.

The ROM checksum will remain. You can get back to Service Mode with 00.

41 = The number of hours the laser in the DVD drive has been active.

51 = All display segments are turned on. Use 00 to exit.

61 = Date the unit was manufactured. YYYYMMDD

To exit Service Mode, hold the power key for 10-12 seconds until the unit shuts off.

Posted on Aug 05, 2008

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Display reads slf check and u99 whichIthink is a fault code.The unit is apanasonic DMR-ES30VEB dvd recorder/vhs.Any ideas?


Hi
U99 is a fault code, from memory i believe it is a communication error between the dvd drive and its controller, either way the machine needs to be serviced.

regards

TechSupp12

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CANNOT FORMAT A DVD DISC ON MY DMR-ES30VEB MACHINE ERROR CODE U99 COMES UP


please go to the microsoft website and download the latest empathy programme

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The "U99" error code signifies a "general communications failure."
It is not associated with one specific problem.
It can be related to the version of firmware your DVD recorder is currently using and it has been associated with the TV Guide on screen guide.

If your unit displays U99, turn the power off-unplug the
unit for 5 minutes, and reconnect the power.

If U99 reoccurs, please contact the Global Service Center Network for assistance.

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Panasonic DMR-EZ47V U99 errors


I see. On this issue you may need to double check the technical specifications of the product.

Here's the link, it may give all the details you need.

http://www2.panasonic.com/consumer-electronics/support/Video/DVD-Recorders-Players/DVD-Recorders/model.DMR-EZ47VK

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Panasonic has a web site below where you can download drivers to a disc that can be used to update your dvr. It also has
the operationg instructions on PDF that you can download & print.

Hope this is helpful

http://www2.panasonic.com/consumer-electronics/support/Video/DVD-Recorders-Players/DVD-Recorders/Operating-Instructions/model.DMR-E85HS.O#ts

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After months of U99 errors, I was able to fix my unit by reinitializing the defaults while using a CD-R with a firmware fix downloaded from the internet. Power the unit down, press Skip/Rev + Time Slip + Open/Close for 5 seconds. The CDR should be in the disc drive as you do this.

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1 Answer

Start up u99 message


Hi there, this is what Panasonic say.... The "U99" error code signifies a "general communications failure."
It is not associated with one specific problem.
It can be related to the version of firmware your DVD recorder is currently using and it has been associated with the TV Guide on screen guide.

If your unit displays U99, turn the power off-unplug the
unit for 5 minutes, and reconnect the power.

If U99 reoccurs, please contact the Global Service Center Network for assistance.

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1 Answer

U99


Hi there, this is what Panasonic say.... The "U99" error code signifies a "general communications failure."
It is not associated with one specific problem.
It can be related to the version of firmware your DVD recorder is currently using and it has been associated with the TV Guide on screen guide.

If your unit displays U99, turn the power off-unplug the
unit for 5 minutes, and reconnect the power.

If U99 reoccurs, please contact the Global Service Center Network for assistance.

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