Search results

Hi, just checked and no resistance at all from those points.

Wow, thanks for the quick response. Will check in the morning. I'm beat, it's late here.

Very new to this so may be an obvious one. Corrosion around the area pictured. Fuses and resistors in this area test ok. Have replaced: C6991 Q7030 Q7035 Q7630 Q7080 C7030 C7035 Q7931 Pulses the green charger light the same as it did before the swaps. Fans spins for between 0.5 - 3 seconds...

Thank you Duke.

Hi, I believe that U7200 is faulty. The ID is unreadable from the chip its self. I have a couple of donor boards but both U7200 already taken. I want to order a single chip quickly from a UK seller rather than wait for more donor boards. Will any of these work...

Thanks for the info. I'm no't looking for problems just trying to learn the way these components work together. First time reading a schematic so it was a general question on P3V3S3_EN_L and the MOSFET.

Thanks chaps. I will have to wait to test it once I get the rest of the machine sorted, also waiting for some donor boards to replace a couple of caps. Am I right in thinking that my logic was nearly correct? The voltage at the gate was only slightly lower than the source but it was looking for...

Thank you, I thought they all turned on when power was given! Lesson learned. I do now get very fast fan spin and hot CPU. This leads me on to another problem but I will troubleshoot first before posting again. I'm still not completely clear on where my logic failed. Everything looked like...

Hi, I'm fairly new to logic board repair and schematic reading / electronics although I have been in the IT repair business for the last 20 years. I'm trying to work out my first logic board repair and may well have got confused along the troubleshooting route. Could do with a helping hand...