I have a model ONC18TV001 made for Walmart. I was hoping maybe someone has a schematic or can help me with an IC part number. The LED driver IC has failed. I cannot read the marking on the IC. Looks like a 10 pin msop package. Thank you.
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Re: Onn Tv made for Walmart
You need to attach some clear, in focus pictures of the board, it is likely used in other makes/models. -
Re: Onn Tv made for Walmart
Yes i will do that. Thank you.Comment
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Re: Onn Tv made for Walmart
Here are some pix as promised.Attached FilesComment
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Re: Onn Tv made for Walmart
Are you sure the ic is bad and not bad led's in the panel? Try using some alcohol to clean the top of the ic. you should be able to read the number.Last edited by R_J; 05-13-2021, 06:40 PM.Comment
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Re: Onn Tv made for Walmart
It looks like there is sime sort of varnish on the top of it that would need to be cleaned off. Sometimes using a bright torch light shone at an angle on the IC can help you read what is written on it.Willing to help but I'm no expert.Comment
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Re: Onn Tv made for Walmart
I will try to clean it off. Thank you again. The LED backlights are completely removed and there was a short across an smd diode on the power supply board. I took it out and it tested fine. I traced both sides of the diode as best as possible and it appeared to go back to the LED driver IC.
I will reply back with my cleaning job.Last edited by sirentech; 05-14-2021, 06:21 PM.Comment
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Re: Onn Tv made for Walmart
I managed to clean it off. While it was a bit damp I was able to read the number. It is SN51DP. I will start testing voltages at each pin now that I know the pinout. I will check for pin to pin and pin to ground shorts. Thank you all VERY much.Comment
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Re: Onn Tv made for Walmart
This may be the circuit, or close to it.Attached FilesComment
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Re: Onn Tv made for Walmart
This is the possible pinout for the iC
Edit
But it doesn't match the information on another site that appears to be as R_J suggests.
https://repowebapps.blogspot.com/202...verter-by.htmlAttached FilesLast edited by dick_barton; 05-15-2021, 05:28 AM.Willing to help but I'm no expert.Comment
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Hello i hope someone can help me i made a mess, i forgot that the board still hot and i knock some resistors out of place , i can't find any schematics or any info, i am uploading a picture with the components i need to put in place i don't need the full manual just the list for the resistors and their value(8 in total), if someone can help i'll be thankful... -
Dear BadCaps colleagues,
I'm working on a HP Omen 16-WF0894ND. Won't turn on. Battery is charging and 3 and 5V rails are present.
However, I located PU1801 that's only outputting 0.37v as soon as the power button is pressed. Weird voltage imo, although there's no short after the coil. Chip aint getting hot either. Since no diagram is available, I can't really determine what this rail is for, but I assume it might be a PCH PWR rail. Please help me to identify:
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Please also see pictures attached. -
I'm trying to identify a small SOT-package IC marked "XA2LD" located near the 5V_FS rail on a logic board. The silkscreen shows it as U26/U25, and it's adjacent to components labeled R415, C232, L28, etc.
Here’s what I know so far:- The IC marking is XA2LD (possibly custom or abbreviated).
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Hi,
i'm looking for a component from the picture with marking "JWCXJ 2HB1N" it is just after Ethernet IC....
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