This is a follow up on a similarly title subject.
I too have a HP Pavilion DV5000 Laptop which is running Windows XP.
When any USB device is plugged into either left-side USB port, the devices are not recognized.
When a USB device is plugged into the right-side USB port, some devices have limited functionally. For instance a USB keyboard is detected and allows lower case characters to be typed. When the CAPS-lock is depressed, the USB connection appears to reset itself. Other devices are not detected (ie: USB Mouse, USB Flash Drive, USB Web Cam, etc...). Connecting an externally powered USB hub to the right-side USB port, enables USB devices to work. Not so for the two left-side USB ports.
Now I have taken this a step further and disassembled the laptop down to the main board and media board. A visual inspection of the individual components near the USB ports revealed that the same SOT23-5 (U28 and U1, respectively) components were electrically damaged (burnt) due to excessive current draw from a USB device. Based on how the components are wired into their circuits and a little electronics know-how, the devices appear to be a Analogic Tech Current Limited Load Switch (Part number: AAT4610AIGV-T1 or AAT14610BIGV-T1).
Although I haven't done so yet, I'd like to replace the damaged components to see if this fixes the USB issue for all three ports. Now I've just got to find a source for the replacement parts.
I'll post back if I'm successful.
Thanks.
I too have a HP Pavilion DV5000 Laptop which is running Windows XP.
When any USB device is plugged into either left-side USB port, the devices are not recognized.
When a USB device is plugged into the right-side USB port, some devices have limited functionally. For instance a USB keyboard is detected and allows lower case characters to be typed. When the CAPS-lock is depressed, the USB connection appears to reset itself. Other devices are not detected (ie: USB Mouse, USB Flash Drive, USB Web Cam, etc...). Connecting an externally powered USB hub to the right-side USB port, enables USB devices to work. Not so for the two left-side USB ports.
Now I have taken this a step further and disassembled the laptop down to the main board and media board. A visual inspection of the individual components near the USB ports revealed that the same SOT23-5 (U28 and U1, respectively) components were electrically damaged (burnt) due to excessive current draw from a USB device. Based on how the components are wired into their circuits and a little electronics know-how, the devices appear to be a Analogic Tech Current Limited Load Switch (Part number: AAT4610AIGV-T1 or AAT14610BIGV-T1).
Although I haven't done so yet, I'd like to replace the damaged components to see if this fixes the USB issue for all three ports. Now I've just got to find a source for the replacement parts.
I'll post back if I'm successful.
Thanks.