Re: kdl-40nx723 e double image help please
Do these voltages change when the ribbons are removed?
Do these voltages change when the ribbons are removed?
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Re: kdl-40nx723 e double image help please
not rreally tom but whats bothering me is
inb and out b both are 1v or lower
according to that lad should be at 7-8v
shed any light on this pleaseComment
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Re: kdl-40nx723 e double image help please
where can I get data or specs of this tcon tomComment
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Re: kdl-40nx723 e double image help please
Nobody publishes such information; anmol's info will be from his testing or elsewhere.
I think your T-con is working OK - the IN/OUT will depend on the exact image being displayed at any one time.
You should focus on why the image becomes distorted when only one ribbon is in place. I'd focus on the panel driver PCB and tab bonds. Maybe one of the signals is shorted on the COF IC (bad source COF IC = bad panel)Last edited by tom66; 09-14-2014, 06:21 AM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: kdl-40nx723 e double image help please
right if I take the left ribbon out the screen will come on then fade the pic to bright white with spots lol
if I remolved right ribbon I get full pic on left side no errors but right stays whiteComment
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Re: kdl-40nx723 e double image help please
Yeah, I don't know what else to say but it has every symptom of a bad panel issue. You can try a T-con board but I don't expect any difference.
Maybe anmol will have more ideas.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: kdl-40nx723 e double image help please
tom
what is ina outa -inb outb if they control each picture side and b shows low voltage could this be an issue as anmol said the should be 6-7 v on bothComment
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Re: kdl-40nx723 e double image help please
I don't know for sure.
They could be low if the panel is shorted, or if one half is not outputting such a signal.
Maybe check each end for shorts to ground (power off, 2000 ohm range.)Last edited by tom66; 09-14-2014, 07:19 AM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: kdl-40nx723 e double image help please
Go and look up Youtube videos or online tutorials on how to use a multimeter. To be more specific, test the resistance from each point to ground, using your meter's 2000 ohm range.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: kdl-40nx723 e double image help please
ok so test vofee vone vcc33 etc yeahComment
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Re: kdl-40nx723 e double image help please
For now, only INA/OUTA/INB/OUTB.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Re: kdl-40nx723 e double image help please
I don't get readings from the ina outa inb outb
Using meter on the 2k ohms
I do get readings on the other pointsComment
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Re: kdl-40nx723 e double image help please
No shorts there then, so it's not an obvious fault. Any further troubleshooting is probably best done using a scope.
For now, my bet is 5% T-con, 95% panel fault.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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Hello team,
I'm back with another tv and another problem.
I try to improve my knowledge on fixing TV, and all technics used until now are not fixing correctly the problem.
First, reboot issue, I use tape Method to find out the right side that cases the issue.
Then using this it's working for quite 1hour30, then at some point of time the image became double on the bottom for half the screen.
Then double image reduce in height and move to the top.
The image is like folded on around 1cm and the bottom has been moved to the top by 1cm.
When I... -
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My 2001 Toshiba 50WP16 50" plasma TV has, after 20 years of trouble-free service, developed a wierd fault in the last 14 days during normal viewing - with no loud bang or smoke or any other excitement.
Every 15-30 secs the right hand half of the image has a "glitch" for about 1 second before reverting to normal. The glitch has two forms and also depends on the aspect ratio setting (see photos):- 16:9 either a) a visible seam between LHS and RHS of impage or b) LHS image duplicated on RHS (photos 16x9)
- 4x3 either a) no image on RHS or b) RHS image offset by 1/6th
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Hi there,
I think it might be a bad panel but I thought I'd ask before I chuck it..
thin colored horizontal lines bottom and thin section on top. As it runs warmer, you can see some ghosting or double image. Right hand side of the screen darker then brighter (backlight is always on, so it's the actual LCD that gets darker and brighter)
Replaced the Main board, because I had one handy, no change.
Is it worth replacing TCON? disconnecting ribbon on one side of the panel, the lines appear still on the other side (unplugged side.)
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