I have a Raymarine SL631 display that keeps re-booting itself every 10 seconds and will not go past the start screen. If I disconnect the power and reconnect, it will stop, as soon as I push the power button it starts all over.

If there's a memory card installed for maps, try starting up the unit with it removed. It's possible that the card might be corrupted and stalling the start-up sequence.

Hi,

1. Turn off computer and unplug power cord.
2. Disconnect all external devices(open up the computer tower and then )
3. remove battery
4. press power button and hold for 10-15 seconds
5. plug power cord back into computer and press power button.
6. Check LED’s and listen for power supply fan.
7. If LED’s are on or power supply fan starts spinning, watch for boot screen
8. If coputer begins to turn on, turn it off.
9. Reconnect battery and external devices.
10. Press power button and make sure computer starts.

This should work....all the best

Check to see if this is a power issue by connecting to shore power and fully charging your batteries overnight with instruments off. While still connected to shore power, with batteries fully charged, turn on C80 navigation system. If the loading screen comes on and does not reset, then try holding down the button immediately to the right of the red power button for at least 3 seconds to see if the system re-boots.

It would appear you need to perform a hardware reset.

6.2 Resetting the System
Three types of reset are available for the Chartplotter:
• Power-On Reset: When you turn the display unit off, then on again,
the screen reverts to the chart display with all windows cleared.
• Hardware Reset: This procedure enacts a power-on reset if the unit
has entered a lock-up condition.
To perform a hardware reset, press and hold the POWER key for 9
seconds.

Hope this helps.
Good Luck!

My rival has this problem now. The last two I went through both had displays go bad and render nothing but white screens. I only got the first one about a year and a half ago. The only permanent solution is to buy a non-motorola phone. The rival is a total lemon.

Faulty unit.

I think this is a problem with the laptop's LCD display. To verify this connect the laptop to an external display and see if it resolves the issue. If it does then its confirmed that its a display related issue. Since the issue has appeared suddenly I dont think its a serious problem. May be just loose/disconnected connectors. Should be a 10 minute job for a qualified technician.
If the external display too doesn't come on then its an issue with the graphics card and you may need to replace it.

Probably a bad printed circuit board, just had to send mine in to have it repaired. When I hit the power button, I did hear a beep, but then nothing displayed. Mine was still under warrenty, so don't know the repair cost if yours is not.

The RAM might have problem...

If you are experiencing problems with your C70, C80, C120, E80 or E120 display resetting itself, or randomly turning itself off, there are 2 troubleshooting procedures that may resolve the issue:
1. Ensure that none of the buttons are stuck under the edge of the display's front fascia.
When the Multifunction Display is first installed, or any time after the front fascia has been removed, it is very easy to get the edge of one or more of the rubber buttons trapped under the edge of the plastic fascia. This is particularly prone to happening if the snaps that secure the fascia to the display are not fully engaged around both the outside perimeter of the fascia, and the insider edge surrounding the LCD display.

E-Series display with soft key trapped under fascia.
You can free the buttons from under the edge of the fascia by applying pressure to them with a fingertip, and rotating your fingertip in a circular motion. When the button is properly through the fascia it should sit centered within its hole, and you should feel a positive "click" of the internal switch when pressing and depressing each button. If trapped buttons were found, releasing them will return the display to normal operation.
2. Reset the display.
Your display may require a reset which will erase any stored waypoints, routes and tracks.
If your MFD's menus are accessible:

Backup your personal data CompactFlash memory card. Please see Answer #1145, Backing up waypoint, routes and tracks on C and E-Series for complete instructions.
Once your data is backed up you can reset the display using this procedure:

1. If your MFD's menus are accessible, perform a "Settings and Data" reset from the System Setup menu. Press the MENU key, then scroll down to the "System Setup" option, and toggle the track pad right.
2. Scroll down to the "Settings and Data Reset" option and toggle the track pad right.
3. Under the word "Factory Reset?" press the softkey corresponding to YES. The display will restart momentarily.
4. The display should reboot into normal operating mode.

If your MFD's menus are not accessible:
You will not be able to backup your personal data. We can reset the display though using this procedure:

1. Press and hold down the first soft key (next to the power button.)
2. Keep holding the soft key down while the display reboots. A "Factory Reset" countdown will be displayed. Keep holding the first soft key until the countdown is complete.
3. The display should reboot into normal operating mode.

Once your display has returned to normal operation you should check its operating software version, and upgrade to the latest version (if applicable.) The latest update for your model is 3.31. It will be displayed on the message that appears during start up. This is an important update because changes were made to the WAAS satellites and your E80 will not recognise the satellites without this update. Click this link to download the update: Raymarine V3.31 update.

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