Now that is a possibility!
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Bill79
Member
Last Activity: 04-01-2017, 10:20 PM
Joined: 03-26-2017
Location: Schaumburg, Illinois
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Re: LG 47LD500-UA not turning on
Now that is a possibility!...
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Re: LG 47LD500-UA not turning on
That is what I thought you meant. I guess too I was checking myself there.
So I see you saw that reply. Good. Something has been bugging me about U101 this entire time I had this TV open (as per my description).
The numbers on that semiconductor are DA23AH (right before that number there appears to be a Foxconn "F" F before it. (Or atleast to me the F reminds me of a Foxconn F).
Under that number there is another number. It appears to read Q0465R.
I hope this is the info...Leave a comment:
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Re: LG 47LD500-UA not turning on
I am not sure I understand this request.
I am unclear on the "STBY SMPS IC (the multi-pin to-220 case) mounted on the heatsink" specifically....Leave a comment:
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Re: LG 47LD500-UA not turning on
Yes, I have 162VDC at F102 fuse plugged in. And when I unplug, the voltage drops off.
What type of fuse is that for F102?...Leave a comment:
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Re: LG 47LD500-UA not turning on
First thing I checked.Fuse is good.
I am looking through your guides right now.
It will take a minute to go through....Last edited by Bill79; 04-01-2017, 04:04 PM.Leave a comment:
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Re: LG 47LD500-UA not turning on
Yes, that is correct....Leave a comment:
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Re: LG 47LD500-UA not turning on
Well, this post was started by some one else with the same TV a little bit before I had the problem.
I Googled the symptoms and found this thread on this site with with the same problem with no solution (that I saw).
So, I figured add onto this one so the next guy can find this easy in a Google search and not have multiple threads to choose from....Leave a comment:
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Re: LG 47LD500-UA not turning on
Yes, I am getting no voltage at the +5 pins at the out put to the main board.
Dick Barton and I went through some checks already.
I replied to him this morning with relevant information....Leave a comment:
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Re: LG 47LD500-UA not turning on
Yes Sir, that is the correct board.
I did see that on Jimmy's website, but I think they were out of stock on it to buy a new one.
But yes, that is the correct one....Leave a comment:
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Re: LG 47LD500-UA not turning on
I had removed and taken much better pictures of my actual board.
I had noticed after you wanted me to test C809 after looking and realizing there was no C809, I looked at the topic posters pics and his were a little blurry when it came to close ups.
So I will post better, detailed pics.
And again, this IS MY ACTUAL power board.
Hope this helps us in future relating to this circuitry....Leave a comment:
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Re: LG 47LD500-UA not turning on
Good Day,
I am assuming when you said "voltage on the side of C809 and the other tow large caps alongside", I assumed you meant C609.
NOTE in a new reply below I will post brand new close up pics of (my actual board) to help in referencing circuits.
Assuming you meant C609, all 3 are marked 450V and all three check in at 162.2/3VDC when tested with board plugged in and out of TV on a dielectric mat.
The fuse tests at 2-3 ohms, same reading as if I touched the two terminals together on...Leave a comment:
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Re: LG 47LD500-UA not turning on
Good Day, Thank you for your reply.
Okay. I have done what you advised.
I used alligator clip test leads on the DC (outer pins) and then to my meter like you advised.
I am getting between 156.9 and 157.0 VDC when board is plugged in and when you unplug it, the DC voltage slowly drops off to zero.
On the AC side (inner) I had to use just the leads on my meter and I got 122.6 volts.
AC side atleast sounds good to me.
What is the DC out put "supposed to" be? 157 volts...Leave a comment:
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Re: LG 47LD500-UA not turning on
Good Day, Thanks for a response.
Well, as far as pictures are concerned, I have a problem uploading pictures from phone to PC).
But my boards look absolutely no different from the topic posters picture for his TV.
His boards have the same (what I thought were) defects on them.
One thing I did find (that a camera would not have picked up) was on the back of the power board there was a piece of dust that might have gotten through the back panel, fell (inside the TV) in between the metal case the back of...Leave a comment:
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Re: LG 47LD500-UA not turning on
Looks like you had the same issue that I have.
Your post was a long time ago and atleast here no one helped you.
Did you learn anything to get you're problem resolved?
From the looks of your pics, we have the same TV. Mine is apart, going to check that fuse next.Leave a comment:
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