I have a mild knowledge of electronics, and have just recently recived an lg 5183 dvd player. Problem: It doesnt turn on! no standby led, no life at all. I have had a look for bad solder joints already but with no avail. Is there any way to bring it back to life?
Please try its power suply. if its okey. then deal with the mother board
Posted on Sep 26, 2008
First thing to check is the power cord with it unpluged. Do you get a resistance there or is it open?? If its no reading at all then the power transformer or fuse or current limiter resistor is open. If you do get a reading then you know your power transformer primary is good. Next measure the AC volts comming from the secondary of the transformer. AC volts? Good! Now Find pin 1 or the end pins on the microprocessor. 5 volts present?? No theres your problem get a schematic and troubleshoot the power supply. Yes 5 volts? Measure the display any volts on it?? Ok im sure by now your gonna say no to one of these and like I said get a schematic and conferm all the voltages are present in the power supply. Most common dead problem in dvd/cd players is the power supply ie transformer,regulator, ic, ect, ect. Good Luck
Posted on May 10, 2006
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