Everytime I turn my truck on and push the power button, a error message saying "Power IC Damaged" appears. The radio will not work nor the CD player. Is this an internal problem?? I tried reseting it, doesn't work. I don't know what to do! Thanks for your help!
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The setup Security Code can be done when the <Demonstration mode Setting> (page 50) is set as OFF. • When the Security Code function is activated, the code can’t be changed and the function can’t be released. Note, the Security Code can be set as the 4 digit number of your choice. 1 Enter Standby Press the [SRC] button. Select the "STANDBY" display. 2 Enter Menu mode Press the [MENU] button for at least 1 second. When "Menu" is displayed, "Security" is displayed. 3 Enter Security Code mode Press the Control knob for at least 1 second. When "Enter" is displayed, "Security" is displayed. 4 Select the digits to enter Push the Control knob to  or [¢]. 5 Select the Security Code numbers Push the Control knob to [FM] or [AM]. 6 Repeat steps 4 and 5, and complete the Security Code. 7 Confirm the Security Code Press the Control knob for at least 3 seconds. When "Re-Enter" is displayed, "Security" is displayed. 8 Do the step 4 through 7 operation, and reenter the Security Code. "Approved" is displayed. The Security Code function activates. • When the wrong Code is entered in steps 4 through 6, repeat from step 4. Press the Reset button and when it’s removed from the battery power source 1 Turn the power ON. 2 Do the step 4 through 7 operation, and enter the Security Code. "Approved" is displayed. The unit can be used. In Standby mode Touch Sensor Tone Setting the operation check sound (beep sound) ON/OFF. Display Setting "Beep : ON" Beep is heard. "Beep : OFF" Beep canceled. In Standby mode Manual Clock Adjustment • This adjustment can be done when the <Synchronize Clock> (page 43) is set as OFF. 1 Select Clock Adjustment mode Push the Control knob to [FM] or [AM]. Select the "Clock Adjust" display. 2 Enter Clock Adjust mode Press the Control knob for at least 1 second. The clock display blinks. 3 Adjust the hours Push the Control knob to [FM] or [AM]. Adjust the minutes Push the Control knob to  or [¢]. 4 Exit Clock adjustment mode Press the [MENU] button. The Whole manual is here. http://www.kenwood.net-disp.com/i/05products/kdc_x789/pdf/kdc_x889_x789_mp828_k_english.pdf
According to the manual for the Alpine CDE-102, the message "DC ERROR" is displayed if there is a short to ground in the speaker wiring. Check all of your speaker wires and make sure that no bare wire is shorting against the vehicle metal or against other wires. Repair or replace the wire as necessary. After correcting the problem, set POWER IC to "POW ON" according to the instructions in your manual.
Sounds like you have intermittent contact between the constant 12v and the ACC 12v power inputs. Remove the head unit, and make sure that the connections are properly insulated. (using inline **** connectors preferably)
Same issue but pressing Power and SEL would not reset unit. Found solution. Once again disconnected the car battery. Removed the face unit from the radio base and then reconnected the battery. Replacing the face unit AFTER the power was re-established solved the issue. (Probably pulling the radio fuse rather than toying with the battery connection would have done the same thing.)
Turn the ignition key to on or accessory position, turn the stereo off, then hold the function key for a couple seconds, the stereo will turn on and you scroll through the menu with the left and right arrow buttons and change settings with the up and down buttons