Model KDC-MP142/CR When turning radio is always goes to STANDBY mode I want the radio to go on in the normal way. Also the clock to backs to 12:00 when radio is turn on. Thanks

press the reset button or hold to am button for some time to turn on am radio and check if ST indication is ON

The Kenwood radio will generally give a "PROTECT" error if the amp or receiver is being overloaded. This may mean that some of your wiring may have gotten frayed, one of your speakers isn't putting out the right voltage, or the receiver has decided to go bad. Make sure all of your connections in the back of the radio are solid and not frayed. If that's not the problem, try running each of the speakers one at a time. If one causes the radio to go into protect mode, that's your culprit.
If neither of these are the issue and the radio decides to stay in "protect" mode, your receiver may have seen better days and may need a replacement.

Press the B.Boost button and keep pressed for over a second but do this, when the head unit is in Standby mode. Hope that helps dreamsystems

According to the manual you need to hold down the source button to enter audio control mode.

Hold Source button

Press audio knob to enter control mode

Select audio item to adjust (scroll to what you need to adjust, then press the audio knob)

Adjust, turn on what you need

To exit hold audio knob for a second

Hey i had the same problem and i've just solved it you just gotta reset the radio the button it´s between the FF button and the 1 button gotta push it with one clip or something like that

Your unit is seeing a speaker that is shorted. Disconnect them one by one until the protect goes away then check the wire and speaker for a short.

get in to "menu" (hold magnifying glass), scroll to "demo mode" (am or fm button), push volume knob in and hold for about three seconds. Should work, that's how I did it.

http://www.kenwoodusa.com/Support/Car_Entertainment_Owners_Manuals/#_

To set the clock, you need to be in standby mode. Push and hold the B. Boost/menu button. Menu will show up. Use the RT knob up and down until you find "CLCK". Then push the RT knob down until the clock and ADJU shows up. Use the RT control to adjust the time. In normal mode to show and hide the clock, hold down the RT knob.