Contacts button and Start menu item not responding

Most likely the dimmer switch it dead. Turning it back and forth, Fast several times , sometimes will clean the contacts and it will start working again, for a while.

Dear Sir:

Try it with some little Inyection of 50% of Oxigened Water +50% ethilic Alcohol(100%) for to clean the contacts or pad for the buttons.

Wait for 15 minutes.

An try it again.
Now if doesnot work go to the 2 Step.

2) You must open the cover, and look for the rely for to clean it contacts, in the same ways.The rely is the element for to swith off -and on the motor for Theadmill.

Respond it if you get solution.

sincerely.
E.Cuadra

poosible burned contacts on cook relay mounted on circuit board; or, a defective solder connection(s) on same board. another spot to check in the door microswitches.

There is a small green board underneath the buttons that has silver contacts underneath them that allows the buttons to activate. These silver contacts wear out over time which is why your having to press the power button more then once to get it to respond. That small green board with the silver contacts on them would have to be replaced.

To reset the settings back to English:

1. Set the DM-20 to Voice mode using the blue switch on the back voice recorder.
2. Remove the DM-20 from Hold using the gray switch on the back of the voice recorder.
3. Press and hold the DISPLAY/MENU button on the front of the DM-20 for at least 3 seconds. The menu list is displayed.
4. Click the REWIND button six times to highlight the Format menu item.
5. Click the PLAY button to select the Format menu item. A message will be displayed with Cancel and Start options.
6. Click the REWIND button once to highlight Start.
7. Click the PLAY to select Start. A message stating that the data will be cleared will display briefly. Then a message asking if you are sure will be displayed.
8. Click the REWIND button once to highlight the Start menu item to continue with the format.
9. Click the PLAY select the Start menu item and begin the format. The format progress bar will appear. When it is complete the menu items will be in the English language.

I had a same problem, Auto Focus works in all the Basic modes but it did not work in Advanced and Manual modes.  After couple of hours of frustration I found the solution. It worked for me, I hope it will work for you too.
Follow step by step instructions. Start the Camera
Go to M (Manual Mode) Press Menu Button Go to 6-th Tab Custom Functions (C.Fn) Select Clear settings Select Clear all Custom Func. (C.Fn)
This should fix your problem
Go back to shooting more and try your Auto Focus

My touch screen has not been responding but my navigation buttons are working. I'm not able to check my contacts too.. .

It may sound simplistic but many times when a remote starts to act flaky, replacing the battery (or batteries) will cure the problem.
They don't last forever.

Another possibility is that the Closed Caption feature has been set in the menu so a check of basic settings might help.

Finally, the contacts in most remotes consist of small carbon buttons and fixed contacts on a printed circuit board.
The board contacts were once flashed with gold plating but - well, we know what has happened to gold lately, so manufacturers have pretty much ceased to use gold and some don't even bother with nickle now but just depend on the tin-lead solder to last beyond the warranty.
This latter material does oxidize over time and becomes a lot less conductive.

If you can crack the case (sometimes there is a concealed screw or two- be careful) it can help to gently run a pencil eraser over the board contacts to restore their shiny surface.

I suspect you have a Filter "on". If you see a bar right under the "Find:" prompt, that has a name in it, not a contact name, but rather a filter name, then this will be the reason the "P" search is not finding anything because a "P" record doesn't exist in this filter group.

Click on the Menu button (the one immediately to the left of the track ball, scroll and click on the Filter menu item just under the Help menu item. Scroll through your list of filter groups and make sure none of them are "checked". If one ore more are checked, un-check them all and retry your steps from the beginning.