-
Last edited by budm; 09-14-2012, 11:26 AM.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=24809 -
Re: FSP Fanless 500W:How well does it work in real life?
It works OK.
It's very high efficiency from the start, usually over 90% at 230v, so at the average 100-150w loads computer have nowadays, it's not a problem to dissipate 10-25 watts of power.
The 12v fets (or whatever they are) are on the bottom of the pcb and heatsinked to the whole case just like with the Seasonic X series power supplies... so they have a lot of heatsink, in the computer case.
Here's a review for the 400w model : http://www.jonnyguru.com/modules.php...tory4&reid=303 (page 3 with dissasembly, go back a page or two for the tests)
-
Hi.
BacCaps forum is awesome - thank YOU ALL for sharing knowledge!
This is about DONG YANG PSU BN44-00195A failiure in Samsung 245BPLUS. It started with bang and smoke from the back of LCD. Downloaded diagram BM44-00192A - a bit different but I will use all parts names from this diagram [and real PSU].
BIG CAP CP801 had 315V, on standby pin 5,2V. After shorting S_B ON (through 3,3k ohm resistor) 24V and 5,3V were missing, on CP801 was 312V.
RM801 [real PSU: RM801 - 0,22 ohm 1W] - FAIL
burned, measured 10M ohm.
QM801 [real PSU:... -
Hello, I have an "ASUS ROG Strix G713QR" laptop, and for approx. 3 months I have the following problems:
1. Laptop keyboard doesn't work
2. The backlight on the laptop keyboard doesn't work
3. The x2 side LEDs (red) on the laptop don't work
The power button works, the touchpad works, and all the USB, HDMI, Ethernet, etc. ports work.
I already tried to reinstall all the drivers and reinstall Windows. So I don't know what to try anymore that is software-related.
But I am strongly aiming that it is somehow a BIOS-related problem,... -
hello everyone, I have a particular problem with this lenovo ideapad 330s-15ikb. I had to replace the motherboard due to liquid damage, after replacing it I noticed that some letters on the keyboard do not work. So I bought a new keyboard and now all the keys work except the numeric keypad area. In practice the num lock key LED always remains on and the numbers do not work. Has anything like this ever happened to you? I also tried changing the keyboard again but the same defect remains on the numeric keypad.
I tried updating the bios but the problem remains
https://s... -
I just bought a used one for a decent price for a used device it prints very nicely and clean and clearly so I am not going to complain about it but I would like to get it working again anyone have any suggestions on how to repair this back light
If I can not get the controller to work properly then I will probably have an external power supply for the backlight because it is difficult to see the screen without out it
One —>the LEDs might be bad
Two —> the buck converter or regular might be bad
Three —> the controller might not... -
Good afternoon friends
I have an Asus laptop motherboard X455LJ REV 3.1 that the touch pad does not work, I was trying to check if something was wrong at the drive level but I did all the necessary installations and the touchpad still does not work.
I have a feeling that the error goes more to the board level because the touchpad is not recognized by the device manager and it is supposed that even if it does not work correctly it has to be detected.
I even checked that the data bus made a connection between the touchpad and the motherboard and everything...
Comment