Re: Toshiba 55ZV650U REGZA sound but no picture
Greeting CapLeaker
Concerning my problem ......would the two oscilloscopes that I posted be good enough to check my many board?
If not mistaken on is a 10 and the other a 20 Mhz.
It would probably be the only time I use it. I ll even offer if he would rent it to me for a couple of days.
Thanks...
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Re: Toshiba 55ZV650U REGZA sound but no picture
I found two oscilloscopes for sale locally .....would either one of these do the job?
The first one is:
Hung Chang 20 Mhz dual Trace oscilloscope Model: OS-620
The second one is:
Oscilloscope Tektronix 564B Storage
seems to be a 10MHZ...
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Re: Toshiba 55ZV650U REGZA sound but no picture
Wondering if this could shine any light on the matter on hand. I disconnected the wired connection (the metal one with a bunch of wires) on the bottom of T-com one at the time. When I disconnect the bigger of the two the whole screen goes black as if the TV is off and when I do the smaller one the is no change to the screen as if its on but no image.
I will ask around to see if I can borrow that special tool.
Hope this can help if I dont find the tool needed.
Budm .....do you think...
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Re: Toshiba 55ZV650U REGZA sound but no picture
The chances of getting my hands on an Oscilloscope is probably next to none .......Have I just hit a dead end? or is there another path I can take to resolve the problem. Either way my friends I appreciate the time and patience that you people have put in so far.....
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Re: Toshiba 55ZV650U REGZA sound but no picture
I redid the test .......
number #5 I get 26.9 v
number #6 and I get -7........did it 3 - 4 times blk on chassis red on dot.....I finally saw real small dotLast edited by eztiger12; 05-10-2016, 07:38 PM.
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Re: Toshiba 55ZV650U REGZA sound but no picture
1 - 0
2 - 1.8 on the chip 0 on the board...it does not have a leg connecting chip to board.
3 - 3.3
4 - 3.3
5 and 6 - 0 if your are referring to the white dot that you circled on the board.
7 - 16.3
8 - 12
all done DCV with blk on chassis
just hope Im touching the right place with the red probe .......the one I m not sure of is # 2, 5 and 6...
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Re: Toshiba 55ZV650U REGZA sound but no picture
Ok here are the pictures of the T-Con. Picture 001 is the front and 002 the back of the T-Con I purchased off the net thinking it would fix my issue. Guess what ......it didn't. Pictures 003 and 004 is front and back of the original that is back in the TV right now. Both T-con's fuses were tested and they both give out 12 v.
Hope this helps.....
Thanks for everyones patience....
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Re: Toshiba 55ZV650U REGZA sound but no picture
You got it.......The TV was bought brand new and NEVER worked on or open until now. I touch and remove some things in order to work on it and take pictures but that is the extent of it.
I ll post the picture as soon as possible.....thx
Yes the backlight work perfect ......screen changes a little in the front but very evident when standing in the back of the TV with cover off.
Thx again...
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Re: Toshiba 55ZV650U REGZA sound but no picture
What a difference when you do it right .......Thank for the clear instructions, it made all the difference........drum roll please........12v DC on both gold sides.
Blk probe on chassis and each gold side gives me 12v DC.
I hope this works because my wife is having a good laugh.........I cant wait to see her face once she sees a picture on the screen...........
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