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With the unit on, press and hold DISP until the clock beginsto flash, then release. Press TUNE << to adjust the hours and TUNE >>
to adjust the minutes. Press DISP momentarily to save the selected time.
That symptoms have problem in back lights supply.The back lights have drive board that energies the back lights, the drive board have 24v dc from the power supply.So if the 24V dc output of the power supply have faulty because of leak capacitor,the back light drive board is did not oscilate to energies the back light.So the problem is either in power supply the 24v dc output,the drive board or the connector of the back lights in the drive board is loosen.
There are two 3mm white LEDs inside the face-plate that need to be replaced. Remove the face-plate and turn it over. Remove the 4 screws in the corners. Un-snap the plastic back off the face-plate. This exposes the back of the printed circuit board. Pull the volume knob off the front of the face-plate. You may need to use a small screw driver to gently pry it up. Flip the face-plate back over and remove the one screw that's holding the printed circuit board in. Separate the printed circuit from the front of the face-plate. Be careful to not lose the spring for the push pin. Flip the printed circuit board over and you'll see a raised metal box surrounding the display. The one end of this metal box is covered in black tape. Remove this tape to revel a small cavity in the side of the metal box with two 3mm white LED in it. These are the 2 LEDs that need to be replaced. This cavity is so small there's not much working room. Note that the positive terminal for each of these LED is on the left and the negative terminal is on the right. Rather than un-soldering the old LEDs I found it easier to use a small pair of diagonal cutters to just cut their leads and then pull them out of the cavity. Leave enough of the old leads sticking up to solder the new LEDs to. Trim the leads of the new LEDs to the proper length, slide them into the cavity one at a time and solder their leads to the stubs of the old leads. Make sure you get the polarity correct. Put everything back together and you should be good to go. I hope this helps you out.
If the cd's come in and out fine then it has something to do with key wire (red) . I try and always use and a adaptor harness when installing aftermarket decks. Make sure your wires are well inulated and not pinched when deck is "in its place".
Probably you are mising 1 voltage,check this you need to have 2 voltages ok,1 voltage has to be present on the yellow wire(constant voltage,means all the time,ok) and the second voltage on the red wire (this voltage has to be switched wiht the ignition key)check this and try to fix the problem,probably there is a fuse blown,you can use a tester light to check the 2 voltages.or if you dont want to do this just conect the yellow and red wires together and the unit has to turn on.