Re: Is this 55" Hitachi a good buy? (lines on screen)
Yeah, trace the wires from Xsus to PSU.
Yeah, trace the wires from Xsus to PSU.
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Re: Is this 55" Hitachi a good buy? (lines on screen)
The harness that goes from psu to xsus does not include Vs in any of the labels. Only the harness that connects X and Y have the Vs label. In the service manual it shows where a test pin for Vs on the PSU. I tested it, and I get nothing...
EDIT: The harness that is going from PSU to Xsus is labeled "VSI" "VAI" and "VCC"... Is VSI the same as VS?Last edited by mattpd; 11-13-2012, 09:07 PM.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
with X-sustain disconnected?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
With the power unhooked from Xsus and Ysus (all the ribbons are still connected, is this ok?) there is no Vs coming off of the PSU. So I guess the pop came from the PSU? But the TV still powers on with sound... Possible just the Vs rail broke?Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
Possibly, do you have Va/Vda/Vdata?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
I will have to bring home my good meter from work tomorrow and test.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
I have read that IPMs often produce a pop when thy fail. How can I identify which chip is an IPM?
Also, aren't the two boards on the sides of the plasma panel normally called y and z? I just noticed this hitachi calls the one to the right x.Last edited by mattpd; 11-13-2012, 10:36 PM.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
On LG, the rightmost board is Z, but everyone else uses X.
I doubt this set uses IPMs. It will all be discrete if it is a Hitachi. That is, all MOSFETs, IGBTs and diodes. But if you post a picture, I'll be able to tell for sure.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
It would be a rather large chip under a heat sink, right? I don't see one...Attached FilesComment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
No IPMs, all discrete. Good on Hitachi...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
Do transformers go pop when they fail? I have been over the board with a jewelers loop and cant find anything that looks broken.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
No, they very rarely fail.
Things to look out for would be ICs near the MOSFETs/IGBTs.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
Just out of curiosity I put my blue ring tester on the transformers and there is one that does not ring at all. I tried all combinations of pins.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
That's odd.... which one is it? (Can you highlight it on the image for me.)Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
White one that is in the bottom left corner. 25-217
It rings on the pins to the right, but nothing but shorts on the left.Last edited by mattpd; 11-14-2012, 08:40 AM.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
And on the other white transformer, the best result I can get is 1 yellow LED. This one rings OK on the left side, and not so well on the right side.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
That might indicate a short on the board somewhere. Sorry I'm not much help... I have no experience with Hitachi plasma panels. What's the part # of the board? Maybe it's cheap somewhere else...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
Its ND60200-0032
I guess I should have checked the board prices before I picked up the TV.Comment
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Re: Is this 55" Hitachi a good buy? (lines on screen)
I found a surplus of the ND60200-0038 (18 boards on one site, £30 each), but it's not the right one, it's completely different. Had a look around for similar models with cracked screens?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: Is this 55" Hitachi a good buy? (lines on screen)
Yeah, that's the 42" version I think. It's parts are much cheaper. Nothing on craig's list yet... Please, if anyone has or knows of any of these TVs with a cracked screen, please PM me.
HITACHI 55HDS52
HITACHI 55HDS69
HITACHI 55HDT52
HITACHI 55HDT79
HITACHI 55HDX62
HITACHI 55HDX99Comment
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Hi all
I have lines on the screen...which is an age old problem that can be remedied by watching Youtube videos and getting out the tape.
My issue (after successfully fixing a different sammy tv with a separate tcon board and isolating the side of the panel...):
This tv has an integrated tcon...so it is a bit more confusing when trying to isolate the clocks.
It has a c ribbon and i have taken each end out to see if that will isolate the lines. instead, it makes it much worse ALL over the tv!
So....i don't know what end of the C ribbon to work with... -
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 again everyone,
This is my latest mission, to try getting this Sony tv back to normal working order…
I've only just got it today, when you power it up everything is as should be, in fact it works perfectly for a few minutes then the screen starts getting horizontal lines on & eventually the full screen goes back, I will upload photos of the problem & also some photos of the board etc. You might notice that I'm busy trying the tape method, I'm not sure exactly where the clock lines are so I'm just guessing & hoping for the best lol . I've already tried... -
Just had a customer bring in a M2 MBA A2681 that had had a screen replacement in April at another repairer. Since then, she has been getting intermittent kernel panics. It's an aftermarket screen, and of course it fails in diagnostics as the calibration hasn't been done. The error in the panic log is "No device added after powering on the rails".
It seems the original repairer has swapped the board and the screen to other MAC's, and said that it isn't a screen issue. From what I understand, by doing a quick search on Google, this is in fact a screen issue. The panic relates...07-31-2025, 08:37 PM -
Hi, I have a Sony XBR-65X750D that has horizontal lines at the bottom 6 inches of the screen. These lines appear to be every other line because the picture is still quite visible behind those lines. The lines appear all the time with a few other lines above and below the 6 inch level blinking on and off at about 2 second intervals. I'm not sure if this is a panel issue or power supply/main board problem. I did replace the T-Con board without any change in the problem. Any suggestions you might have would be greatly appreciated. Thanks,
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