My SSL DD888 double din 7" car stereo/dvd player
If it had been working fine before, it means either the powerconnection to the player is not available anymore (loose powerplugs) or there might be internal damage to the player. This can occur when the polarity of the car-battery got reversed accidentally while repairing the car. Another thing might be the internal battery of the player is dead. This battery is used to store date / time and other data.So, first check the Voltage of the car-battery. Second, check the power-connections at the back of the player. If you still can't locate the problem, you should check if your player is still under warranty.If not, and as a last thing, well, if you got some electronics knowledge and tools, open up the interior of the player and look for suspicious looking components, like broken fuses, blown capacitors, black spots at the PCB (*) etc.(*) PCB is the green board inside the player, where all tiny electronic components are mounted.