See pictures below
Sony XR-77A80J OLED 5 Blink
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you are celebrating LOL.... please continue with him when he found the STBY pins active to do next step to test PSU as stand alone to know if there T-CON 12 and EVDD after it will prove please tell how it need to test the psu and t.con and panel as stand alone.... no LVDS or main boards socket in place. thankComment
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The thread has all the info. I've come a long way since this TV. I have also learned that I hate sonys. Once he can test the panel then I'm sure we will have an answer. I haven't seen one of these tvs get fixed yet.Comment
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Diah I apologize for my lack of knowledge and not paying attention as much as I should. My readings were incorrect as you stated as I did not read the pins on the bottom part of the connector. I have been stopping my work on other repairs to learn TV's and have noticed my mind has been split between this and working on my other repairs so I apologize for my absent mind during these posts!
In saying that I do have 3.5v for the STBY. Staying on 2 I still don't have any readings on the 2 black connectors going to the T-CON as well as the white connector.
EazyBone I also was laughing at myself going back through these posts lol. I also apologize for adding two pages to this thread of nonsense hahaComment
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Diah I apologize for my lack of knowledge and not paying attention as much as I should. My readings were incorrect as you stated as I did not read the pins on the bottom part of the connector. I have been stopping my work on other repairs to learn TV's and have noticed my mind has been split between this and working on my other repairs so I apologize for my absent mind during these posts!
In saying that I do have 3.5v for the STBY. Staying on 2 I still don't have any readings on the 2 black connectors going to the T-CON as well as the white connector.
EazyBone I also was laughing at myself going back through these posts lol. I also apologize for adding two pages to this thread of nonsense haha
jumper STBY to pin 5 ( Power ON, & to pin 3 EVDD ON, and to pin 1. t-con on see the photo i attached at my post 84
turn ON and look at the screen how it will come on with pattern color
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disconnect the MB socket from PSU , and disconnect the 2 LVDS from T-CON, the sockets between PSU and T-CON should be in place
jumper STBY to pin 5 ( Power ON, & to pin 3 EVDD ON, and to pin 1. t-con on see the photo i attached at my post 84
turn ON and look at the screen how it will come on with pattern colorComment
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if you did the jumpers correctly on the assigned pins. and you plug the tv in wall.... if no screen... test the sockets on the t-con all at fuses from both side if you have V.Comment
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you need now take out the PSU alone on table and do the jumpers all 3 as i wrote before and trouble shooting the circuit of EVDD circuit at cold area... u worked on it before... you may forget put back the R in place LOl or missed with some partsComment
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Put it on the table and the bridge is good. CN6601 only have 12.8v in Pin 1 and 3, Pin 2 only has .07. Everything else is 0v. What is the R or LOI?Comment
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this rail pin 3 are EVDD which right now missing V on socket 6101, you need to follow the rail from pin 3 socket 6401 circuit till the optocoupler , there you have issue which the EVDD circuit didn't startComment
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by thelankanguyThe TV shows a black screen with no image.
TCON ribbon connectors were disconnected individually for image and there was no half image even.
Later both ribbons were disconnected and TCON voltages were tested.
12V, 3.3V, 1.8V were seen present but VONE signal reads 0V.
There is also a short to ground in this circled inductor.
Is this a TCON issue or something else ?... -
by bbrainHi,
I have this problem with my Sony 55' AG9.
It flashes 4x.
I have found the service manual, and seems it is the TCON.
Before I buy a TCON can someone check the vid?
Thanks in advance!... -
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