|
Post by robertarthur on Mar 27, 2024 23:20:54 GMT 1
Asus K53E, introduced in 2011. Still the original battery? Already tried to start it with the battery removed? Sometimes a battery with almost no capacity - voltage under load too low - prevents booting.
|
|
|
Post by lurcher on Mar 28, 2024 9:22:27 GMT 1
When you connected the charger, now repaired, to the laptop is there any indicator that the laptop battery is charging? All my laptops show a dim orange light while charging and turn to bright white when fully charged.
|
|
Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
|
Post by Aardvark on Mar 28, 2024 9:32:43 GMT 1
The battery is not the original one but was working before the recent repair. I get no lights at all, dim or otherwise. The mains power supply box indicator is lighting up but nothing on the laptop. Since today we are experiencing rain and gales I will attempt to look inside and double check all the nasty little ribbon connectors, etc. one last time.
|
|
|
Post by robertarthur on Mar 28, 2024 12:28:27 GMT 1
@ Aardvark, 1/ Power supply still working? Should be a little bit above 19 V DC, not charging anything. 2/ Battery, removed, enough voltage? 3/ Did you check correct functioning before your Araldite reinforcement? It will not be easy to reverse it for an extra pc board check. Multilayer boards, many tiny copper tracks inside, vulnerable.
|
|
|
Post by lurcher on Mar 28, 2024 12:41:08 GMT 1
……….remove the battery and check its open circuit voltage on the terminals if possible. There are usually easily accessed connecting pads on the battery housing. Check the open circuit voltage st the plug/socket termination st the end of the charging lead coming from the charger unit. If this is satisfactory (RA wisely suggests just over 19V) try to hook up connections to the battery watching out for correct polarity. The battery should charge for a few hours. Finally replace the battery in the PC. If the battery is good it should be able to provide enough power to test further if the PC becomes alive.
|
|
Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
|
Post by Aardvark on Mar 28, 2024 15:12:03 GMT 1
Power supply working OK- tested on another laptop. I didn't test functioning before applying the Araldite. It would have required full reassembly for the test and then dismantling again to apply the goop. "many tiny copper tracks inside, vulnerable." You can say that again! I couldn't test the battery itself. Multiple terminals on it, buried in between slots too narrow to insert meter probes. ________________________________________________________________________________________________________________________ Update: I got it working. I double checked that power was getting through the connector on the board, and then to the tracks beyond, and disconnected all the ribbon connectors and gave them a wipe with switch cleaner before reinserting. I don't know what I did but it now works. All back together now and updating the OS and security stuff. Very slow going at less than 5mb internet speed.
Thanks for the ideas and encouragement.
|
|
|
Post by lurcher on Mar 28, 2024 15:50:32 GMT 1
Well done! That’s the kind of job that gives real satisfaction. I hope it keeps running trouble free for a long time.
|
|
Aardvark
Non-gamer
Living in soggy 22 and still wondering what's going on.
Posts: 2,172
|
Post by Aardvark on Mar 28, 2024 16:30:43 GMT 1
I do get satisfaction from fixing things to extend their life. I have always been that way and it has been key to my survival when unemployed. The problem is the list of things breaking down always seems to be one step ahead of the successful repairs. Thanks again for your suggestions. Always appreciated.
|
|
|
Post by robertarthur on Mar 28, 2024 17:06:05 GMT 1
@ Aardvark, the ASUS X53 (also 2011) of the OH has still the original battery. Two repairs: a power surge of more than 267 V (RMS, peak probably much higher) blew up the power supply. Tle laptop not damaged. Two years ago it began overheating about 20 minutes after startup. Fan blowing at top speed, extremely hot air. Manual switch off, no smoke....Difficult one. Let's test the memory ( one 4 GB module) with Memtest 86, bypassing the operating system from a usb stick. Several test runs: it stopped at 67% of the memory with an error message. New module and everything was back to normal. Looking back: after startup, surfing, word processing etc. the running applications and temporary files probably touched this 67 % treshold and the computer panicked.
|
|
|
Post by robertarthur on Mar 29, 2024 22:04:25 GMT 1
And this is a dark blue 1968 Weller Magnastat soldering station. Little 24 V transformer inside, fuse and working temperature selection by different "temperature sensing" soldering tips. Ferro-magnetic sensing devices, simple and very reliable. Spare parts for the now obsolete ranges rather difficult.
|
|
Nifty
Member
Posts: 5,025
|
Post by Nifty on Mar 30, 2024 3:50:14 GMT 1
I do get satisfaction from fixing things to extend their life. I have always been that way and it has been key to my survival when unemployed. The problem is the list of things breaking down always seems to be one step ahead of the successful repairs. Thanks again for your suggestions. Always appreciated. Such is life. in this case your life hangs on a tread. Just a strand of fiber optic……..
|
|
|
Post by lurcher on Mar 30, 2024 9:09:16 GMT 1
I remember buying some while at school. The advertisement was declared a huge flop because nobody wants to be seen as alone. I like your clever reference to strand.
|
|
Nifty
Member
Posts: 5,025
|
Post by Nifty on Mar 31, 2024 17:20:39 GMT 1
Cicero’s version on the same theme
|
|
|
Post by lurcher on Mar 31, 2024 18:48:14 GMT 1
I watched it but maybe you could explain whether there is hidden message apart from the obvious.
|
|
|
Post by robertarthur on Mar 31, 2024 20:44:09 GMT 1
A message in German, but not hidden. Inside the Weller Magnastat soldering iron. The heating element was designed to reach a peak temperature of 600° C. This temperature is much higher than necessary. This is why the heating element is connected to a temperature-controlled automatic regulator, which supplies the current as required. As soon as the tip temperature is too high the automatic temperature control switches off the current to the heating element. Below a certain temperature and the current starts flowing again. With a 50 W element this ensures an adequate energy reserve resulting in fast and reliable soldering. There were four interchangeable tips for 260, 310, 370 and 400°. No soldering problems with sensitive electronic components.
|
|