So I recently replaced the power board and everything was working fine.
That is until, I hot plugged the aerial back in. I heard something short and the set went dead. Now I get nothing when I power on, not even the led's on the back of the power board. I checked the fuse in the plug and the ones on the power board but still nothing.
I'm hoping this is a known problem and has a known fix, preferably not to complicated. If it's another new board then I think I'm going to cut my loses and just replace but I'd like to know your thoughts first.
Many thanks...
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Hi me again!! New problem with PDP42TV006
Last edited by FritzCT; 11-20-2013, 02:59 PM.
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Re: Bush PDP42TV006 Problem No Picture
So fitted the new psu and all seems ok.
Thanks for the help, much appreciated
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Ok I found a used board for 42 pounds. The same model number but the Rev number is different.
Does that matter? If not I'm going to give the replacement board a run.
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Another update......
Couldn't sleep last night so I took the power board out and started testing components.
There is another cap that I'm getting no reading for . It's in the VE section of the board.
There might also be some blown resistors there and in the PFC section (where I changed the capacitor before) as well but I'm getting some really odd readings as in I check it once and get a reading, check it again a few minutes later and get no reading so I can't be sure which are blown and which are...
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Re: Bush PDP42TV006 Problem No Picture
Ok so I out the new cap in and still no picture. Basically the same symptoms BUT I now get 6 flashing LED instead of 7! If only I could reduce it to none I'd be laughing.
But seriously, I'm still getting the same voltage from Vs. 20 max and slowly dropping. with both VS plugs disconnected 50 V and reducing much faster.
Fritz
EDIT: Hold that thought, it's still 7 flashes. Is there a way I can check my soldering is good? Grasping at straws really though
EDIT 2: As it warms up I get 3...Last edited by FritzCT; 11-15-2013, 05:54 PM.
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Re: Bush PDP42TV006 Problem No Picture
Yep
Got it from RS
nichicon
33mF 450 v
CA(M)
105 C H1142
RS part no. is 7394589
I e-mailed them with the details off the blown one and that's what I got.
Many thanks
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Hi Tom
The board number is LJ44-00068A. I can pick one up for about 50 pounds. I picked up a capacitor earlier for about two pounds. Do you think it's worth trying changing that to see what happens?
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Hi Tom
Yes probes are connected correctly.
I unplugged both connectors and re-tested all Vs pins and still get voltage dropping although it now peaks at about 50 v as the set is switched on but drops off much faster.
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Hi Tom
Well I'm not sure I'm doing this right but when I put the probe in either of the pins marked Vs I'm getting a reading of 20 v which gradually drops off to zero over about a minute. I can hear some clicking and various lights come on then some go off again. There's also a crackling sound when I push the probe in but guess that could be as the probe connects. It's just once, then it goes.
Attached is a photo of how I'm testing; how the meter is set; and also a couple of photos of the sticker on the back of...
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Re: Bush PDP42TV006 Problem No Picture
Tom
I've run into a problem. The power lead is chased into the wall and the only other one I have powers the PC.
I'll have to grab one from work tomorrow.
I assume you mean the left most connection marked Vs and I stick the probe down into the connector where the wire connects - I can just see the end of the exposed internals of the connector
Many thanks
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Sorry Tom
Can you refer me to a one of the photos as I'm not sure what pin you mean and I don't really want to be poking about with a probe with the set powered up.
Many thanks
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Hi Tom
I can see a few areas marked with Vs or similar but theonly connectors I can see are two. One is marked Va and also seems to be marked Buffer the other is a slightly larger connector and marked VS. I've attached photos of what I can see.
The panel is made by Samsung model no. S42SD-YD05.
Fritz...
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Re: Bush PDP42TV006 Problem No Picture
Ok multi meter's good. Brand new Duracell came back at 1.505 V.
Picture of power supply unit attached (well the board that the power switch wire connects directly to).
Many thanks
Fritz...
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Re: Bush PDP42TV006 Problem No Picture
Hi Tom
I found the multimeter (pic attached).
I assume you are going to need me to test certain areas? Am I going to need to remove any boards to do this? Just thinking I can get them out ahead of time if necessary.
many thanks
Cliff...
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Re: Bush PDP42TV006 Problem No Picture
Cool, I'll garb it tomorrow thenif that's ok?
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Re: Bush PDP42TV006 Problem No Picture
I can but not until tomorrow as it's at work somewhere. It's pretty basic, much like the attached image. could even be the same one.
Fritz...
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Re: Bush PDP42TV006 Problem No Picture
Ok I popped the top off and it looks good, no bulging. I hope I don't have to get the cap back on though as I don't think that would be as simple.
fritz
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Re: Bush PDP42TV006 Problem No Picture
Any chance I could still get a shock off it? It's been powered down for about 6 hours.
Fritz
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Re: Bush PDP42TV006 Problem No Picture
Ok three of the first 4 press down fine. The fourth made a cracking sound that was the plastic disk cracking at one edge. I've attached a photo below. Is this now U/S?
Yes I have a multi meter somewhere, just need to dig it out.
You're right about the date. The back of the PDP Module has a manufacturing date on it of 22/8/2005.
Do you think this might be a fixable problem?
Many thanks
Fritz...
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Re: A guide to fixing/troubleshooting some common plasma TV problems
Hi
I've opened up the back and found some capacitors that look u/s.
I've started a new thread as I've uploaded some pics.........
I'm thinking positive!
Here is the link [url]https://www.badcaps.net/forum/showthread.php?p=390759#post390759[/url]
FritzRe: A guide to fixing/troubleshootin... I've started
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