Hello everyone!! I came across this tv on the side of the road and thought i would take a shot with it. Figuring the worst, a shattered screen i brought it home and plugged it in. I have a similar problem as others have, only mine is on the right side instead to the left. When i first turn the tv on with no cable signal coming in, i get snow on the left side and it gets darker toward the center and all the way to the right the screen starts out with a 6" wide from top to bottom white bar that fades to the right off the screen. But the screen doesn't have much movement the whole right 1/3 of the screen. The sound starts out with static then starts to fade off and crackle. Does anyone have an idea to push my way???It would be much appreciated, Thank You!
-
-
Re: Sanyo dp46848!!
If the sound and video have issues:
Then i would consider issues with the power supply (test all the voltages leaving the power supply (except for any thick white/pink wires and verify they are close to what they are marked as being on the board.
And second it could be an issue with the mainboard. If you search for a manual for your model it might have some simple troubleshooting steps on which parts to test. (DC-DC regulator tests)Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards. -
Re: Sanyo dp46848!!
Where are you putting the black probe of your meter?
This does sound like bad caps on the PSU.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
-
Re: Sanyo dp46848!!
If this is bad caps, is it hard to pinpoint which ones are bad? or would the power supply board need to be changed out?Comment
-
Re: Sanyo dp46848!!
is this the board you have got?
http://www.ebay.co.uk/itm/SANYO-DP46...item2ebcfd19f1
see if you can post some good close up pictures of your board.Comment
-
Re: Sanyo dp46848!!
I prefer to take the voltage measurements while the boards are connected and the TV is on. Uusually you can sneak a probe into the connector from the top.
Make sure your multimeter is set to DC voltage and not AC voltage, then test with 1 probe on the voltage wire you want to test, and the other probe on the ground pin / or a peice of metal on the frame / case of tv. You can take readings with either ground, usually they are the same , if they are different then you can post that that here.
If your voltages are still significantly off like you posted above, then you obviosuly have some bad power supply issues (caps are a good starting place to check), if you post pics people might see some bad ones.Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards.Comment
-
Re: Sanyo dp46848!!
[ATTACH]38422[/ATTACH]
[ATTACH]38423[/ATTACH]
[ATTACH]38424[/ATTACH]Comment
-
Re: Sanyo dp46848!!
Here are two pics of the main board and there are three caps that look like they have a stain on top but there isn't any bulging of the tops of them.
Comment
-
Re: Sanyo dp46848!!
Its common to put red marker on the top of caps to indicate they have been tested.
If there is any texture / 3d shape to taht red stuff on the top, then those caps have leaked and are bad most likely. On 2 of them it looks like a blob in the pics (and so would be bad), but in 1 it just looks like a marker / or paint coating that is very flat.Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards.Comment
-
Re: Sanyo dp46848!!
http://youtu.be/dF881_xL0Qw
<iframe width="560" height="315" src="http://www.youtube.com/embed/dF881_xL0Qw" frameborder="0" allowfullscreen></iframe>
This is a video of my tv turned on and this is what its doing! Watch the whole video toward the end the static (sound) will start to disappear then turns to a crackle sound. Hope this will help point me in the better direction meing power supply board, main board, or something with the back lighting..Comment
-
Re: Sanyo dp46848!!
Did you check the caps as cashkennedy suggested?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
-
Re: Sanyo dp46848!!
I did see any caps swollen on either the power supply board or the main board. I did post pictures. Of three caps on the main board that are either marked as tested or they are leakers. They are 48uf 35v caps i was just gonna change out to be sure, but the only caps i can find available are 47uf 35v will these work??Comment
-
Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!
My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.
This time the original cable broke too close to the screen, it can't be fixed without tearing the screen... -
Hi,
I have a iphone XS that came in for a screen replacement, the screen was badly cracked, and inside missing scues, on the back of the screen still the blue protector, the screen was a LCD. So we replaced the screen and all good, installed the screen and we noticed that pressing the screen with a bit of force but not excessive, the phone dies. After plugging the charger it turns back on, but again if you press it it dies. I open the phone again, and I can't see anything major, with the phone open, if I press on the logic board, battery, charging board, or even putting pressure on... -
Hey All,
I have a Sanyo DP5834 that did have an issue with the backlights, but I disassembled the unit and repaired the LED strips by resoldering all of the connectors. Now I've reassembled it and I have backlights and sound, but a grayish screen. I can tap on the screen and see that it's on, but no picture. All voltages seem to be correct on the power board.
Based on the LCD Flat panel TV troubleshooting guide by Bud Martin, I'm thinking the T-Con has failed because I'm getting 12v both into and out of FP1 on the T-Con. Am I on the right track?
Thanks,... -
Hello everyone, I’ve just been given a Samsung UE55JU6800K smart tv as it had white spots on the screen due to the led lenses falling off. After refitting them & putting the tv back together I thought it was a nice easy fix for a free bedroom tv , then I tried it before screwing the back into place. I realised that the right side of the screen was darker than the other side, I removed the screen again as I thought the backlights had failed but they are fine.
I put the screen back in place & turned it back on . The screen seemed to be ok again but different screens on the same... -
I'm currently trying to diagnose and fix my Vizio TV (Model M50-C1). I've tried a number of different basic solutions, but I'm trying to determine if my issue is currently a failing panel, T-Con board, or main board (or something else entirely) and whether or not it is worth my time to fix it. Details of the issue and what I've tried are below as well as why I think it is either a bad panel, T-Con board, or main board.
The Issue: The TV will be on and working fine but after the TV is on for ~5-10 minutes the screen will freeze (with sound continuing) until the TV reboots itself. While...
Comment