Re: SONY BRAVIA 40WE663 odd problem
Measure on the test points. The tiny gold circles.
Measure on the test points. The tiny gold circles.
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Re: SONY BRAVIA 40WE663 odd problem
Guys,
all I can say is I have absolutely no idea what happened just now.
I took voltages and was just about to post them. VONE and VDD WERE MISSING COMPLETELY.
I didnt want to post incorrect info so I went back to double check just as I was about to sit at the pc.
I rechecked VONE and was shocked to see 27.5v suddenly appear.
I looked at the screen and now the set is working.
The only thing I did was to resolder that inductor.
What could it have been.???Comment
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Re: SONY BRAVIA 40WE663 odd problem
Ok now the voltages have gone again.
VIN=12V
VCC=3.3V
right after lvds connector.
further up the board: ( I have posted pics to show areas)
VIN=0V
VDD=0V
VCC=1.8V
VONE=0VAttached FilesComment
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Re: SONY BRAVIA 40WE663 odd problem
Im sure in the hands of someone experienced this is a very easy fix haha.
Im guessing the fauly lies between the first VIN and the second VIN?Comment
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Re: SONY BRAVIA 40WE663 odd problem
Guys what would cause the scaler board voltages to be missing (intermittent) if not the capacitors.Would be the DC-DC IC?
I have been reading alot about this and watching videos but most are in Hindi language and most seem to use jumpers to provide voltage.Comment
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Re: SONY BRAVIA 40WE663 odd problem
maybe a dry joint somewhere, also worth spraying the dc to dc ic with freezer spray to see if voltages stay longer or come back
what are the input voltages measuring like when other voltages are missing
I'm still new to this but you should have 12v and maybe 3.3v on input from MBLast edited by Questcom; 03-24-2021, 07:37 PM.Always learning - correct me if I'm wrong!!
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Hello again everyone,
This is my latest mission, to try getting this Sony tv back to normal working order…
I've only just got it today, when you power it up everything is as should be, in fact it works perfectly for a few minutes then the screen starts getting horizontal lines on & eventually the full screen goes back, I will upload photos of the problem & also some photos of the board etc. You might notice that I'm busy trying the tape method, I'm not sure exactly where the clock lines are so I'm just guessing & hoping for the best lol . I've already tried... -
I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.
I have tried a Cold Reset as per the service manual.
I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.
I have looked all the way through the service manual and tried many online... -
Hello,
i have this sony bravia kdl-43w755c which boot loops. After sony logo, it shows the android animation loading then it restarts…
from what i read online it looks to be an emmc issue…
i’m not familiar with this kind of tv repairs… i’m repairing laptops and gpu’s…
i took out the board and say an samsung 16gb emmc
i don’t have an exact replacement, but i have a few 32 and 64gb emms’s from laptops…
i could try to put one instead of the 16gb one, but will it work?
where do i get the software from?
any help will be much appreciated!...03-06-2024, 12:26 PM -
Sony Bravia 22" LED Full HD TV KLV-22P402B Schematic...10-16-2024, 05:15 AM
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Hello gurus, hope you can assist me...
I have a Sony KDL.40P3600, with an issue on the left side of the screen (pictures attached).
I think the problem is the panel, but before send it to trash, i would like to get a second opinion.
Thanks in advance.
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