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did you ever figure out why lower half of the screen freezes intermittently. I have the same problem and would appreciate the help
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Re: Olevia 342-B11 No signs of power still.
Well I tried a 2.2k resistor and this time I get 2.43v going to O/F and still nothing
Also I measured the resistance to the pins, The O/F is pretty much around 2-3M ohm to all the ground pins except for 2/ One has 19M ohm, and another has no resistance at all, its the one that is orange in the attached picture from earlier.
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Re: Olevia 342-B11 No signs of power still.
Oops, I forgot to mention what I did in the earlier post.
Anyways, here is the rundown on what happens with the 3.3k resistor I have. when I jump the PSU without the main board connected the PSU doesn't turn on, but I get 2.05V going to O/F through the resistor (jumped from 5Vs). I get no voltages on the other rails.
When I have the resistor jumped with 5Vs and O/F with the main board connected I still get nothing, but I get 0v going to the O/F through the resistor.
I think im doing something wrong.....
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Re: Olevia 342-B11 No signs of power still.
Ok, I checked the lines, but I dont really know if Im looking for anything specific.
I took and edited the picture of where the cable plugs in, I have both sides.
I dont know if this is what you were asking, but here you go
The O/F (brown) line is connected to some other lines on the connector. I made them orange in the picture (according to continuity)
The blue lines are also connected together.
I wasn't able to really find where the orange lines go on the circuit, they didn't...
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Olevia 342-B11 No signs of power still.
This is a follow up to the previous thread I had about this TV (Original thread here: [URL="https://www.badcaps.net/forum/showthread.php?t=16434"]https://www.badcaps.net/forum/showthread.php?t=16434[/URL]. This was a TV that had a power surge and fried some parts on the original PSU. I replaced the PSU on it with (I hope) a good one. I moved up from square 1, but now im stuck on square 2 :-/ The TV shows no signs of any power, no standby light, no anything. I do get power in the following areas though:
The main cap still gets 152.8.
The 5v SB rail (labeled...
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Re: Olevia 342-B11 PSU problem, No voltage in secondary PSU
Ok I just checked everything, On the main cap I get 152.8.
The 5v SB rail (labeled 5v s on the psu) is the only thing that gets voltage pretty much. It get 5.04v
On the same connector I also have a brown wire labeled O/F - It gets no voltage no matter if I press the button or not.
There is also a Blue wire, it is labeled B-ON. When I plug in the TV, it reads 0.0, when the power button is pressed, it goes to 3.57v. When pressed again, it goes back to 0.0.
One more is the Yellow wire....
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Re: Olevia 342-B11 PSU problem, No voltage in secondary PSU
Alright, I got the board in today. Replaced it and all. Except now the TV still wont turn on. Im pretty sure the new PSU works fine. I dont get any kind of indication that it is on at all, no standby light, no anything. Any ideas? I guess now the main board would be at fault :-/
Sorry for being such a bother heh.
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Re: Vizio VL320M lower horizontal block freezes every few seconds
The fact that the screen goes white isn't the problem that I'm having. Its the lower horizontal section of the screen freezing like in the video I posted in the first post.
I took pictures of what happens when you disconnect the tcon for reference, maybe it will help in diagnosis.
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Re: Vizio VL320M lower horizontal block freezes every few seconds
Ok I got it working, I had to do them individually....Weird...Oh well. Here they are. The last picture diddn't work, so there is no picture of the rear arrangement.
I also took pictures of what happens when I disconnect one of the T-Cons ribbon cables: But first let me explain a bit, since the pictures dont show the whole tv. (it was a bit cramped :-P) When I disconnect any of the ribbon cables exactly half of the panel (corresponding to the ribbons side) would stop working (displaying white)
...
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Vizio VL320M lower horizontal block freezes every few seconds
Hey there guys! I got a Vizio VL370M LCD, the problem is that when playing video on any of the sources, the lower half of the screen freezes intermittently. It also has one solid line running vertically on the panel slightly to the left of the middle of the panel, and one more exactly on the middle going horizontally. At the intersection of these 2 lines, there are 3 pixels (arranged on the vertical line, with the middle pixel on the horizontal line) which glow red or a solid light color. Here is a video of the symptoms: [URL="http://www.youtube.com/watch?v=JnG44C0zcQU"]http://www.youtube.com/watch?v=JnG44C0zcQU[/URL]...
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Re: Olevia 342-B11 PSU problem, No voltage in secondary PSU
Ok, im back, and interestingly enough, I have the exact same problem as this fellow mentions now, except I'm almost 100% sure that its because the IC2 I received from mouser to replace the original was actually a model 203D6...and NOT the 230D6 that I needed.....Which, after reviewing the past posts on this thread. I realized that the conversation derailed when I said that mouser had the SMPS in stock (203D6)....except I think when searching for it I had a typo with the numbers....clumsy me hehe.
...
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Re: Olevia 342-B11 PSU problem, No voltage in secondary PSU
I'll order one, but I think I found it on mouser. Is NCP1203D60 the same as NCP1203D60R2G? The R3G is in stock at mouser for 1.14 each.
Also, could anything else be broken on the board? or would we have to wait for IC2 to check? I realize this is a silly question to ask, as obviously the whole board could be fried, but just wondering what else might be a problem if IC2 doesn't work.
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