Hi Everyone,
New to these forums, but not new to forums
A co-worker of mine was complaining a few months ago that there was a horizontal line at the bottom of her LG Plasma TV. So I recommended she should call repair or call in a tech to have a look. Well things went for the worse, the tv stopped powering up.
She called LG and pretty much was told she is SOL. The tv is 2 years old and she paid $3000 (Canadian) and that was the discounted price.
So she called a local repair shop and the guy replaced 10 bulging capacitors, and the end result was, the screen flashing sort of like static snow, and clicking off.
She told me all this and asked if I wanted the tv to play with. So I naturally said yes... I cant resist a challenge like this.
So I inspected the replaced capacitors and the values on them, they were all in the correct polarity (I guess they would have blown otherwise), but there a couple of things I didnt like about the replacements. I will explain shortly.
He replaced the following.
Original
9 x 10v 3300uF 105c
1 x 50v 680uF 105c
Replaced with
8 x 16v 3300uF 105c
1 x 25v 3300uF 105c
1 x 50v 1000uF 105c
All replacement capacitors were quite larger and cramped into the tight spots, especially the 25v 3300uF.
I know you can getaway with larger voltage, but I've always been told not to mess with the uF value as it can change the way the circuit board operates.
So I went to a local electronics store and picked up a new set of the replaced caps, and also picked up a few of the other 100uF and 300uF Caps the were not bulging but not replaced.
So now, the screen no longer flashes, but I get the following light flashing code.
Red Light, 3 x Green Light Flash, Red Light.
I can hear the switching transformer clicking.
I've repaired my wifes ViewSonic monitor this way, by simply replacing the bad caps, but this one is a bit more trickier.
Ummm what else... oh .. on the opposite side of the board are some surface mount resistors and fuses the kind that are green with 00000 written on them. I tested those and they are not blown.
Would love to get this TV up and running.
I did search the forums and there is a another thread about a similar LG but I didnt want to hijack that thread.
Oh and I also tried to download the 16077007-LG-50PC1DRTroubleshootingManual-2007-VG-Training.pdf linked in the other thread but site said the download had expired.
Any suggestions would be very much appreciated.
New to these forums, but not new to forums
A co-worker of mine was complaining a few months ago that there was a horizontal line at the bottom of her LG Plasma TV. So I recommended she should call repair or call in a tech to have a look. Well things went for the worse, the tv stopped powering up.
She called LG and pretty much was told she is SOL. The tv is 2 years old and she paid $3000 (Canadian) and that was the discounted price.
So she called a local repair shop and the guy replaced 10 bulging capacitors, and the end result was, the screen flashing sort of like static snow, and clicking off.
She told me all this and asked if I wanted the tv to play with.
So I naturally said yes... I cant resist a challenge like this.So I inspected the replaced capacitors and the values on them, they were all in the correct polarity (I guess they would have blown otherwise), but there a couple of things I didnt like about the replacements. I will explain shortly.
He replaced the following.
Original
9 x 10v 3300uF 105c
1 x 50v 680uF 105c
Replaced with
8 x 16v 3300uF 105c
1 x 25v 3300uF 105c
1 x 50v 1000uF 105c
All replacement capacitors were quite larger and cramped into the tight spots, especially the 25v 3300uF.
I know you can getaway with larger voltage, but I've always been told not to mess with the uF value as it can change the way the circuit board operates.
So I went to a local electronics store and picked up a new set of the replaced caps, and also picked up a few of the other 100uF and 300uF Caps the were not bulging but not replaced.
So now, the screen no longer flashes, but I get the following light flashing code.
Red Light, 3 x Green Light Flash, Red Light.
I can hear the switching transformer clicking.
I've repaired my wifes ViewSonic monitor this way, by simply replacing the bad caps, but this one is a bit more trickier.
Ummm what else... oh .. on the opposite side of the board are some surface mount resistors and fuses the kind that are green with 00000 written on them. I tested those and they are not blown.
Would love to get this TV up and running.
I did search the forums and there is a another thread about a similar LG but I didnt want to hijack that thread.
Oh and I also tried to download the 16077007-LG-50PC1DRTroubleshootingManual-2007-VG-Training.pdf linked in the other thread but site said the download had expired.
Any suggestions would be very much appreciated.
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