-
-
Re: motherboard short repair question
Well, I don't know what to tell you then, it is shown in your diagram you provided.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
-
Re: motherboard short repair question
anyone?Comment
-
Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?
I am new to electronics repair, so my queries could be naive but I am ready to learn.
So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is... -
Hi,
I am working on an Asus ROG laptop repair. I was able to find that there is a short on the motherboard, and the 20 volts from the charger only gets to the first mosfet before disappearing.
When looking around with a thermal camera, I noticed the chip marked "14C" in the picture was getting warm. Nothing else was receiving heat.
I found a boardview diagram and schematic for a motherboard that looks nearly identical, that has the same component. This appears to be marked as "AC Short Protection" with a value of 13.7KOhms.
... -
Hi beginner here, so I'm not sure of I've done this right 😅 trying to diagnose my laptop's motherboard (dax31mb1aa0 rev a). I don't quite know how to read the schematic, so I'm attaching the pictures of the motherboard and the measurements.
I was attempting to measure resistance to GND on inductors. I disconnected motherboard and used "continuity testing" setting on my multimeter. I put black probe to Ground & red probe on an inductor. Did I measure this right? Am I correct to think that 0.3 ohm measurement indicates a short circuit? Thank you for your help!... -
the comon problem they say , the charger will shut off power once plugged to laptop , i dont have battery, its long gone ago , i use it for backup with adapter and vga port to external monitor(yes no screen lcd) in case my desktop needs fix . one thing for sure i could say the clr resistor - r010 beeps ,short at both sides , the checked all the coils , the 3 coils together gives all of them beeps short along with their respective capacitors . i dont have voltage ampere injection dc machine as in videos i have seen they see where its getting hot and they remove the short and replace components... -
hi , my motherboard is short after ram change. here is some pics. i think this component is short. thank you...
Comment