I plug in cord radio does not turn on. i took radio apart check for loose wires everything looked good. no water damaged and nothing smelled burnt.the radio looks in good shape.it looks like it's about no more than 5years old.
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I think your DC Power Jack is bad. The DC Power Jack is where the power cord plugs into the laptop. If it is bad, then a good power cord cannot charge the battery, nor can the laptop turn on once the battery is drained.
You say it smelled burnt, that might mean it took a power surge. I always tell people that before your plug the power cord into the electrical outlet on the wall to remove the other end of the cord from the laptop. That way if you get a power surge you will only damage the power cord and not the dc power jack or motherboard.
Anyway, take an ink pen and push it into the dc power jack and see if there is some movement. The little pin or the casing of the jack should not wiggle.
The DC Jack is soldered onto the motherboard. To replace it you will have to take the laptop apart, desolder the old dc jack and solder a new jack onto the board. Sometimes the DC Jack sits in a slot rather than being soldered. The palmrest and bottom case helps to keep it in place. This type of DC Jack usually has a cable harness that plugs into the motherboard.
Check the power from the harness. The yellow wire which is usually for constant 12v power and the red wire which should only have power when the key is turned on. check those wires and if you have power on both then the radio is fried. Try pushing the pins in the back of the radio harness in and see if maybe there is a loose pin, other than that, like i said , the radio may be bad.
Unless the receptacle was wired with 240 volts, NO DAMAGE would be done. First thing to check is to turn amp on and use an ohmmeter to check for some continuity between the blades of the plug. Common problem is that the power input cord doesnt seat fully where the cord attaches to the amp.
Here is your schematic: http://elektrotanya.com/marshall_mg100dfx_sch.pdf/download.html
Scroll down to "get manual" and click on it. Ignore other download links. A fuse cannot always be visually checked. They sometimes fail mechanically and loose fuse clips are common problems. Do the contiuity check. The transformers rarely fail, so don't let an incompetent tech tell you it is bad.
sounds suspiciosly like your chord fitting is damaged(loose wires at connection)and shorting.if possible try a friends power supply with same connecter type before renewing cos could be faulty(loose)connection at pc(inside)constant pushing and pulling of connections often causes 1. loose split or disconnected wires at male connection or 2.loose pins on motherboard female connection or broken housing (not difficult to repair)more difficult to find out how to get to internal connection.
its difficult to make a homeowner an expert in troubleshooting his/her equipment if he/she has no technical background - but - I will try. First check the cord to plug connection. Is it tight? Does it look melted? Next, take the unit apart where the cord goes into the unit. Check the wiring path. Look at each connection. Look for burnt off wires at connections. Most connectors are the push on type and are mechanically fastened to the wires. if they are burned off you'll need replacement spade terminals and a crimping tool. (radio shack) has these. one wire will go through a thermostat and out to an element terminal. one wire may go through a thermodisc overload, then to the thermostat and then to the element. the other wire will definitely go straight to the element. there may be some extra connections for lights etc. if you have to take apart the heater make a diagram of which wires go where. use some masking tape with numbers written on it to make sure the wires go back to the same place you took them off.