Hi,
Im looking at a mainboard for a lenovo z530 laptop. It doesn't boot up or start up the display.
Ive identified a burnt component on the back of the mainboard. Its discolored and has burnt a hole in the sticky plastic shield that goes above it. I figure its a part of some of the power supplies on the mainbaord as it is next to the CPU and the burnt component seems to be on the opposite side of the board as the inductors which are the R36W 4C type. The components I need help with are the ones in the yellow square, They are 4 pin devices with a metal cover/can on them, I was guessing earlier that they may be DC DC converters or opto couplers, oscillator but I am unsure. Any help would be greatly appreciated. also i cant find a troubleshooting guide or anything like that for the laptop,its pretty limited support wise. I do have the service manual but that more or less only covers; dis assembly etc. I figured if im gonna have to replace the mobo i might as well try and fix any obvious problems
The components have a symbol on them like IYR but the y is more like a pcb symbol for an antenna, the larger of the components seems to have numbers on them 6725 9327 1132 which in google turns up nothing.
Im looking at a mainboard for a lenovo z530 laptop. It doesn't boot up or start up the display.
Ive identified a burnt component on the back of the mainboard. Its discolored and has burnt a hole in the sticky plastic shield that goes above it. I figure its a part of some of the power supplies on the mainbaord as it is next to the CPU and the burnt component seems to be on the opposite side of the board as the inductors which are the R36W 4C type. The components I need help with are the ones in the yellow square, They are 4 pin devices with a metal cover/can on them, I was guessing earlier that they may be DC DC converters or opto couplers, oscillator but I am unsure. Any help would be greatly appreciated. also i cant find a troubleshooting guide or anything like that for the laptop,its pretty limited support wise. I do have the service manual but that more or less only covers; dis assembly etc. I figured if im gonna have to replace the mobo i might as well try and fix any obvious problems
The components have a symbol on them like IYR but the y is more like a pcb symbol for an antenna, the larger of the components seems to have numbers on them 6725 9327 1132 which in google turns up nothing.
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