Hello!
A friend of me gave me an old television, he told me, that it's not working. It's an Philips 32PF3320/10 TFT LCD TV.
Since I like to fix stuff, I decided to fix this TV too. I plugged it in, it turned on, I got backlight and also, sound. The only thing that didn't work is the screen itself; it had nothing on it.
After I took it apart, I noticed, that everything seems okay, so I got to the T-con board. The model is: V32BC3 (the big chip version).
The F1 fuse was blown, but I didn't find any shorts on the board, so I just replaced it with a cable for testing purposes. (I know that it blew for a reason)..
After turning the TV on like this, I now have picture, and can confirm that the TV is in fact working in general, but the colors are waaaaay off.. It's like the picture had a white fog in front of it. It's hard to see.
Also, if say, I open the menu for 10 seconds, then close it, the menu won't fully disappear, like it burns into the screen.. (picture attached)
I have read some forums and watched videos, and I saw that the AS15-F chip can die and produce this, so I replaced it, but the problem remained.
I didn't meausre everything yet, because I had to go to work, but I can confirm, that between GAM2 and GAM17 everything seemed fine about the voltages. But then I noticed, that the GAM1 and GAM18 is at a completely different spot on the board!
The GAM2-GAM17 testpoints are connected to the AS15-F chip and they are located at the left side of the board (blue marking on picture), however, the GAM1 and GAM18 points are on the right side of the board, and connected to the AS34-G chip. (marked with red).
And the voltages seem switched to me.. the GAM1 has 0V, while GAM18 has ~14.7.
Meanwile, on the other side of the board, GAM2 has ~14V, and GAM17 has ~0.7V.
I might not understand everything completely here, but what do you say? On the hungaian TV forum they told me it's a bad LCD and its not fixable.
Important note: i tested the voltages without the LCD connected.
Thanks in advance,
Dominik.
A friend of me gave me an old television, he told me, that it's not working. It's an Philips 32PF3320/10 TFT LCD TV.
Since I like to fix stuff, I decided to fix this TV too. I plugged it in, it turned on, I got backlight and also, sound. The only thing that didn't work is the screen itself; it had nothing on it.
After I took it apart, I noticed, that everything seems okay, so I got to the T-con board. The model is: V32BC3 (the big chip version).
The F1 fuse was blown, but I didn't find any shorts on the board, so I just replaced it with a cable for testing purposes. (I know that it blew for a reason)..
After turning the TV on like this, I now have picture, and can confirm that the TV is in fact working in general, but the colors are waaaaay off.. It's like the picture had a white fog in front of it. It's hard to see.
Also, if say, I open the menu for 10 seconds, then close it, the menu won't fully disappear, like it burns into the screen.. (picture attached)
I have read some forums and watched videos, and I saw that the AS15-F chip can die and produce this, so I replaced it, but the problem remained.
I didn't meausre everything yet, because I had to go to work, but I can confirm, that between GAM2 and GAM17 everything seemed fine about the voltages. But then I noticed, that the GAM1 and GAM18 is at a completely different spot on the board!
The GAM2-GAM17 testpoints are connected to the AS15-F chip and they are located at the left side of the board (blue marking on picture), however, the GAM1 and GAM18 points are on the right side of the board, and connected to the AS34-G chip. (marked with red).
And the voltages seem switched to me.. the GAM1 has 0V, while GAM18 has ~14.7.
Meanwile, on the other side of the board, GAM2 has ~14V, and GAM17 has ~0.7V.
I might not understand everything completely here, but what do you say? On the hungaian TV forum they told me it's a bad LCD and its not fixable.
Important note: i tested the voltages without the LCD connected.
Thanks in advance,
Dominik.
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