Re: sony tv kdl 46 xbr2 no video or sound
Fuse has continuity. Not getting any voltage there. Trying to do it from the lvds (?) cable. Contacts are tiny. Is there a better way to check the voltage??
Or how should it be done..Am getting 5 volts from one of the pins though.
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Re: sony tv kdl 46 xbr2 no video or sound
yes they changed when I replaced the t conn..am nit getting 12 volts at tconn
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Re: sony tv kdl 46 xbr2 no video or sound
OK have no new symptoms..Put in a replacement T-con board. with this in . green power light comes on then goes to a red blinking light. Blinks 9 times. at the time the red light starts blinking, I am getting 3.2 volts on Pan Detect from all three locations, cn6751 on D2 board and from cn6202 & cn6203 on the power board but only for a second. The screen also blinks white for a second. When the red light starts blinking, the amber light on the b2 board that was flashing goes off..Any ideas??
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Re: sony tv kdl 46 xbr2 no video or sound
Did not get continuity from fuse
Voltage went back and forth from 0 to 5.1 volts
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Re: sony tv kdl 46 xbr2 no video or sound
OK have gotten to T-con board..see pictures..Both the large and small chips have some moisture/oil on them and some between the two on the board..I'm guessing that's a bad thing.
I've located the fuse F1..how the hell do ya test that?? it's so tiny?? any tips???
Do the plastic ribbon cables need to be attached to do so ??...
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Re: sony tv kdl 46 xbr2 no video or sound
Yes, am positive backlight and panel-det are at o
1) Is 0
2) Is 0
3) Is 10.4
Using schematics and attachments you've sent on the boards,looking several times, I can find R6788 on the D2 schematic and on the D2 conductor side of the board but not on the component side. Do see a R 6789 though. For R 6277 on D3, I don't see it anywhere on any of the D3 attachments.
Am taking it apart now to get at T-con.
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Re: sony tv kdl 46 xbr2 no video or sound
What does Panel det = 0 volts mean ?...
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Re: sony tv kdl 46 xbr2 no video or sound
Would a good TV repair shop have a way of testing the T-con without taking it all apart?? some sort of scanner/tester?? And same for panel??
Trying to figure out how far to go before deciding it's junk. Would hate to take it all apart ,replace the T-Con and it still not fix the problem??
Thanks for advice
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Re: sony tv kdl 46 xbr2 no video or sound
Just rechecked PFC detect and am getting 3.2 volts...sorryLast edited by gberger; 04-12-2019, 02:46 PM.
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Re: sony tv kdl 46 xbr2 no video or sound
OK ..D2 voltage at cn6600 is 392.
For ohm readings..if I did it right..all 3 are between .2 -.4 sort of stabilizing at .3
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Re: sony tv kdl 46 xbr2 no video or sound
Hopefully , these will work...
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Re: sony tv kdl 46 xbr2 no video or sound
Yes no backlights..I put back in original boards. The posting with outputs are with original boards...
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Re: sony tv kdl 46 xbr2 no video or sound
Thanks ..Will do on text list..
Hist, of tv..love this tv..Floating galss style..Has been working fine since I bought it new.. All at once Picture ,sound and backlights all went out at same time.Green power light is on ..No blinking red lights.Have swapped out the main au board twice with a used board with no change..Changed out the power board with a used one..Still no change..so trying to figure out if its the BE2 or T-con or something else..
I do appreciate all help
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Re: sony tv kdl 46 xbr2 no video or sound
Ya, did try to edit photo and put voltages next to pins but couldn't get it..
Here's back of tv....
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Re: sony tv kdl 46 xbr2 no video or sound
What is the testing for the Panel?
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Re: sony tv kdl 46 xbr2 no video or sound
N0 , no error codes unless I unplug the BE2 board.
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Re: sony tv kdl 46 xbr2 no video or sound
Thanks .OK got heat sink. Still appears it wont come out /fit of opening in cover panel after undoing screws behing cover panel..Pic attached
On top block cn6261 from top to bottom getting 10.4,10.4,10.4,10.4,0,0,0,0,6.8,6.8,0,0.
0n cn6203 3rd block from top getting 10.4,0,0,0,2.8,0.
on cn602 bottom block getting 0,0,0,2.8,0,4.9,0,4.9,0,0,18....
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Re: sony tv kdl 46 xbr2 no video or sound
Sony kdl-46xbr2...Looking for t-conn board and how to get access to it. Service manual lists no board by that name .Just letters and numbers.Attaching pic. If what I have labelled is T-conn board ?? How to get out. looks like heat sink is screwed in from back side or does heat sink just pull off?? or split the chassis to get to .. Tv has no picture no sound no backlights. swapped out both the main and power boards..no change.. Green power light is on as well as amber lights on be2 board..
thanks all...
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