Re: Sony XBR-55X900E turns off randomly
https://community.sony.co.uk/t5/andr...e/td-p/2091088
maybe ?
https://community.sony.co.uk/t5/andr...e/td-p/2091088
maybe ?
-
Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"... -
I got a 15-IIL05 that failed to turn on BUT IT DID TRY TO TURN ON and then turned off after 30+- seconds, i disassembled it and found a screw loose inside the case.
With charger it turns on, fan spins but gives no image.
Tested main mosfets no short, tested 3.3v,5v,DRAM, CPU etc and they were present.
Reflashed BIOS, same problem.
Replaced both main mosfets.
Checked main mosfets again and i noticed that they closed once the laptop shut down, so i decided to bypass them and used a bench PSU to check how much power the laptop was drawing while trying to turn on, 20v@3A,... -
showing power does nothing randomly turns on with 2 flashes: https://youtu.be/ZHME8GthErc
Hello all I have an issue with my tv. I have had it for about 5-6 months because when I moved apartments the previous owner left the tv. and I got it for free it is a plasma tv and looks nice enough. an issue that started to happen was that it would kick off randomly but I could still turn it on well about a month or so I assumed the power button went out so I got a universal remote and programmed all lg codes and nothing just the solid red standby light so fast forward to a week ago...12-18-2019, 10:00 PM -
For anyone interested just repaired this Sony Main board TV that had a 2 blink error code, the chassis is a RB2G which is common to quite a few different Sony models. The Ceramic 10uF 25V X7R 1206 capacitor C9114 was shorted which took the smd 2A 0603 fuse out F9101. This was powering the Buck converter TPS54332 which caused no 5V output from it.
See the attached picture of the locations of both components. I also attach the best service manual I found for this board for anyone else in a similar position of trying to repair this main board. It's not specific to the TV model however it gives...01-08-2024, 05:56 AM -
I've had this laptop for 8-9 years, and about a week back, it started malfunctioning. When I press the power button, the power LED comes on for about 5secs and turns off. The fan also doesn't spin at all during this time. But, if I press the power button, and then manually spin the fan, the laptop boots up and the fan starts spinning on its own. Even if I do this, and the laptop boots up, it turns off (hard shutdown) after some time between 10secs and 1hour randomly. I've tried checking the fan voltage and it's at zero volts when I press the power button without spinning it, but when I spin the...
Comment