Protect displayed - Kenwood Dpx308u

Help in the link

https://www.google.com/search?q=LG+DM5660K+DISPLAY+PROTECTION

protection comes on when it detects a short. Try unplugging everything but the power cord and then see if it still goes into protection.

When the protect indicator comes on, usually a power transistor has blown. The unit needs to be taken to a repair shop.

Hello
Protection display will come over this type of set, when it is overloaded or system confused condition. Just unplug the device from AC mains socket and replug it after 4 to 5 minutes, and see whether it shows any protect display. If it shows it again, just disconnect the output loads, ie, connected speakers, and check. Again it displays 'protect', the internal circuit, especially the output amplifier circuits has the trouble, and the system need service. if it does not show protect display, after disconnecting the speakers from it, check the speakers or its connecting wires for damage. OK.

FIRST PRESS THE RESET BUTTON BEHIND THE FACE IF DONT WORK CHECK ALL SPEAKER WIRES SOMETHING MIGHT BE TOUCHING

there is short inside, usaull with copacitors u might want to have it looked at

output stage fault probably a capacitor leaky

The Control IC broken

See my post "HT-DB120 - PROTECTION due to shorted output stage "

A picture of protection tab in protection position