If anyone can lend their knowledge to a newbie I would appreciate it greatly. I have also attached a picture of the board area before removing the component as well as a picture I found during my web searches that supposedly shows what the pin values are with a good component. I have attached this picture for everyone's review along with a picture of the components before removal. I have plugged in the power supply to read the voltages of the system in standby mode and recorded the values I read on a picture I took of the pads without the component. I know there has to be a cleaner way to do it, hence the reason why I'm here. My web searches have found some people in Mexico had success in replacing this chip with a larger component, however this involves using jumper wires and mounting the component on the board by itself. I would like to ask if someone can assist me in either identifying this component or sourcing a replacement that I can purchase from either Mouser or Digi-Key. There is another of these components near this one, I believe they may both be LDO chips that take 5v DC in and have the output voltage set by using resistors in circuit on one of the pins. I have been unable to source this component based off the case markings, which leads me to believe that the markings do not identify the item and may just be a lot code. I removed the component and the pad underneath pin 3 had lost it's continuity to ground. I tested continuity to ground on the pins for this little guy and discovered pins 2 and 3 had continuity to ground.
This component is an SMD component, package size SOT-23-5. I discovered using a thermal camera that a certain component, labeled U5A1 on the board was heating up to over 125 degrees Celsius. I have an Xbox 360 S (Trinity model) that was missing numerous voltages on the motherboard.
I recently discovered this forum and created my account today in the hopes that someone will be able to help me.
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