mike

Samsung LA-46C550 LCD TV Service manual: https://www.manualslib.com/manual/893977...-La32c550j1f.html Analogue amplifier...

I am just wondering why you think it nedds “cleaning”. There is not really much to do. Remove back cover as shown below: Asus Q505UA-BI5T7 Back Cover Replacement and blow out dust on fan blades. There really nothing else to “clean”. Anything else would risk destroying your laptop.

Just an idea. If the test indicartes “good” try carefully disconnecting the battery and discharging power by holding down the power button for 30 seconds and then reconnect and switch on. Any help? How to disconnect battery: HP Chromebook 14-Q010DX Battery Replacement

Yes. Always, always disconnect the battery first after opening any laptop. This video may help: https://www.youtube.com/watch?v=B4xAzVaz...

I don’t see how you could have damaged the power button. All you can do is take it apart again but re-assemble very slowly and carefully watching what you are doing. Take your time, look at and think about everything you are doing. Make sure all ribbon cables are connected correctly and carefully (probable cause of problem) and those that need to be folded away so there is no stress on the mainboard.

Hi Loli, It depends on which part of the wire you are moving. If it is near to the charger itself then it is the wire itself that is defective. Replace charger. If, on the other hand, it is close to the connector that plugs into the Chromebook it self then it could be the connector on the chromebook that is defective.

Another one bites the dust. These WD, etc. external drives. People stop buying them. Just look at how often this problem comes up on IFIT. To repeat, buy separate SSD/HDD and external case. Both parts replaceable. Much more reliable and easily upgradable. Having said that, open up the case to see if the HDD has a standard SATA connector. If it does you are lucky. Just buy a separate external case and install drive. If it still doesn't work then the drive is defective but you may be lucky and Photorec will work well with the new external case . The question is, is it the WD controller or the drive itself that is the problem - or both?

I think this may be your laptop: https://www.youtube.com/watch?v=j6aWWNnK...

Here’s what the Lenovo forums suggest: https://forums.lenovo.com/t5/ThinkStatio...-Workstations/Lenovo-Thinkstation-D30-Will-not-BOOT/td-p/3324770 The 4th solution down the page.

Start here: https://www.laptopinventory.com/Laptop_M...-6QD%20Apache%20Pro

Shut down and remove the charger/power supply from laptop. Remove the battery. Press power button to discharge any residual power. Plug in the charger and press the power button. Did the computer turn on? If yes then battery is either dead or defective. Did it boot up into Windows?

These name branded external drives are the worst possible choice. Always, always purchase a SEPERATE case/controller and hard drive. Again, why? Often the branded ones have the drive’s circuit board and the USB port imbedded in the same circuit board. If that circuit screws up you are often lost. The component solution (like a good hi-fi sound systems) allows you to easily take the drive out, if the USB part goes bad, and recover your software in another system or case. If the drive dies replace it or upgrade to SSD or larger capacity. A no brainer!