Re: Zenith Plasma Z42PJ240 sound but no picture
Do you still have the dark room glow of the panel?
Do you still have the dark room glow of the panel?
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Re: Zenith Plasma Z42PJ240 sound but no picture
Now checking my y-sus I have no Vsc or by voltageComment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Correction I don't have either Vsc or Vy on the y-susComment
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Re: Zenith Plasma Z42PJ240 sound but no picture
I don't have a glow eitherComment
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Re: Zenith Plasma Z42PJ240 sound but no picture
I'm guessing that the Z-sustain has killed your Y-sustain, check your Y-sustain for shorted FETs.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Is the Y-sus an easy fix or do i need to start looking for a replacement? Also where can i get a schematic for the X and Y sustain boards?Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
What is the EBR or EAX number on your sustain boards?
Most LGs do not have schematics except for some of the main board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Zenith Plasma Z42Pj240
Z Sustain Board
PN : EAX61420601
ERB66607601
Y Sustain Board
PN: EAX61332701
Power Supply Board
PN: EAY60912401
Logic Board
PN: ERB63632301
Main Board
PN: EAX61358603(1)
ERB61358603(1)Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Sorry Bamakc. I have a short question here for Tom66.
How can Z sus kills Ysus board as you said on #25 post.
ThanksLast edited by hienton2; 05-14-2013, 09:06 AM.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
With the new combined energy recovery system on these newer plasmas it can. A short on the Z-sus can damage the Y-sus.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
No schematics available for those, sorry.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
I don't know what happened last night but this afternoon i removed the Y-sus board and checked for shorts but found none. i then removed the buffer board and didn't really know how to check it but i didn't find any shorts on it either. I re-assembled the boards and then I put the 160 ohm resistor back on the control board then plugged the power cord back in and the picture came on all white for about 3 to 5 secs then the test pattern started. After a few more seconds a large area in the middle of the picture went black but the outer areas continued to run the pattern. the black was like a smear and not really a definite shape. I left it on for at least 10 mins and it stayed on but the picture never improved. The heat sinks were hot on the Y-sus and the silver colored one the Z-sus was hot. All on the power supply were cool. Any ideas?Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
The test pattern also shows color also. I think that i read in an earlier post that if the heat sinks were hot on the Y or Z sustain boards that they should be repaired or replaced. I am comfortable with repairing them but i didn't find anything shorted. Would it be better to replace both sus boards? Could it be the buffer board?Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Warm heatsinks are good (means the boards are working usually), but the middle of the panel dropping out to me indicates that your Vs may not be stable, have you checked if Vs is constantly running at the rated 195V? The tolerance is +/-2V maximum.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
yes it is right on 195Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
OK, can you show me a picture image of the fault?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Thanks for you Help Tom66. Here are some pics. After i took the pics I removed power and disconnected the cable going to the Z-sus then re-applied the power and i heard a faint snap and the picture would not come on but still had audio. I checked the Y-sus board and found Q22and Q23 (SUS_DN) shorted. Also Q21 (SUS_DN) open. Q12 (SUS_UP) open , Q13 (SUS_UP) shorted, Q15 (Blocking) open. After looking at the pictures, do you think this is beyond repair?Attached FilesComment
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Re: Zenith Plasma Z42PJ240 sound but no picture
I think you've just got to replace -everything- shorted to get the image right.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Zenith Plasma Z42PJ240 sound but no picture
Do you think if i just replace the Y-sus board it will be salvageable? or do i need to replace the Z-sus again also. The power supply still checks out ok.Comment
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Picked up a bahemoth plasma TV not too long ago and just now getting around to looking at it.
No picture but you hear the TV static (white noise) playing loud and clear.
The back was already taken off (and no screws were provided) as the previous owner had already taken a look.
But it seems they didn't get too far and just left it.
When I first took a look I was amazed at how pristine the inside looked.
Its as if the TV had been in a time capsule.
Caps looked like they were just pulled off the self.
Copper coils had no sign of corrosion on... -
Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... -
I have a 60 inch Samsung UN60EH6000F flatscreen TV. The screen went black a few months ago Sound is good, backlight is good, no menu. I replaced the TCon board with a used board purchased from Ebay. It worked fine for a 3-4 months, then the screen started ‘fading' back. Once again, sound is good, backlight is good, no menu. However, this time the picture looks fine for about 10-15 minutes, then fades back. If I power cycle the TV, the display reappears, for another 10-15 minutes, then fades black again. Repeatable ever time.
I ordered a supposedly ‘new' Tcon board this time, and... -
Hello everyone,
Ive got a UE60KU6079 on the workbench that is giving me some headaches trying to troubleshoot.
The previous owner stated that there had been white dots on the screen which from the description sounded like some lenses fell of the backlight LEDs.
He had opened the TV from the back, trying to get to the backlight, supposedly gave up, reassebled everything and gave the TV to me.
I expected the worst like ripped COF cables or a cracked panel but could not find anything like that yet.
Anyway I still fully expect that there has been something seriously damaged... -
Hi all
I was just given a Samsung TV with the issue. I read various threads and videos and attempted the ribbon tape method to gain an image, but no luck.
Symptom:
No picture no sound.
When I plug in the power cord, Backlight LED turns on for a half second and then turns off. The red LED next to the power button located center bottom flashes 2 or 3 times. When the power button is pressed after, it does the same thing.
No sound at all.
What I tried:
1. I tried unplugging the left or right ribbon...
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