Sony XR-77A80J OLED 5 Blink

[Davi.p]

Re: Sony XR-77A80J OLED 5 Blink

Sorry, it's Sunday i'm lazy, i don't read again all, so since you have nothing loose, why don't you apply my test mode advice? I'm about new in oled field and i'm curious to learn.. don't ask me how, in Latin: Verba volant scripta manent (it's all written)

give me the tcon model..

[Diah]

Re: Sony XR-77A80J OLED 5 Blink

TV is done. New tcon same results. Panel short. Thanks for trying. I have bad luck with expensive tvs

don't give up... try to cutting the black plastic covered the panel puffer boards slowly with cutter.( its mounted with infrared heat) ... you could find the issue on ceramic cups 90%

[Davi.p]

Re: Sony XR-77A80J OLED 5 Blink

puffer boards

These?

Ceramic cups

these?

[EazyBone]

Re: Sony XR-77A80J OLED 5 Blink

I have tried many things, I even found a broken screen a80j and swapped all parts from it. To confirm also evdd would send 21.4v on this one, when doing test. So I ordered new tcon, found a random full set replacement with broken screen and results always the same. The screen shows same exact pattern. I also found a small damage spot on the side of chassis that may have crunched the screen in some way. It was enough to put a small dent in the chassis so I'd assume it could of damaged it.

As much as I'd love to save it, I think we are confirmed goner.

Diah, I could cut into the metal strips and such but I have alot of others to fix at the moment. I'm going to put it to the side for now, and if I decide to do such ill look back.

Davi, I don't see much point in the test now, since I found all those replacement parts. Literally everything is the same no matter what I switch etc and I can see on the broken OLED screen that there was a jumbled picture.

[Davi.p]

Re: Sony XR-77A80J OLED 5 Blink

" also found a small damage spot on"

that is the answer, better to check better next time before buying it and parts..

[EazyBone]

Re: Sony XR-77A80J OLED 5 Blink

Yes I'm sure, it was pretty small. The screen shows no damage just on the chassis. Something that was hard to see I guess.

I only spent $25 on tcon board, I'm not at a loss. This is how I learn, now I know for next time

[Diah]

Re: Sony XR-77A80J OLED 5 Blink

the rand of OLED there are 2 lines of the EVDD,
show me the ribbon cable from T-CON side.. if they have each 4 lines 2 on left & right side separated... or not

[EazyBone]

Re: Sony XR-77A80J OLED 5 Blink

Already packed up TV but maybe does this help?

[Diah]

Re: Sony XR-77A80J OLED 5 Blink

Already packed up TV but maybe does this help?

they look they have,,, but need to see the ribbon self its silver pins..

[Davi.p]

Re: Sony XR-77A80J OLED 5 Blink

On the sides there are glass printed data traces that feeds the rows, that dent appears to be quiet severe.. cracked glass for me..

[Diah]

Re: Sony XR-77A80J OLED 5 Blink

for me..

yours post #43 just childish action don't do it again.
stay in topic. if you don't know any about oled just keep silent.

[nomoresonys]

Re: Sony XR-77A80J OLED 5 Blink

yours post #43 just childish action don't do it again.
Stay in topic. If you don't know any about oled just keep silent.

+1000

[ChattFix]

Re: Sony XR-77A80J OLED 5 Blink

I get blue red white green

I have the same TV with the 5 blinking red lights. Just wondering how you are able to get the colors on your screen. I have everything disconnected as stated but nothing comes up with LVDS and power lines to the motherboard disconnected.

[EazyBone]

I have the same TV with the 5 blinking red lights. Just wondering how you are able to get the colors on your screen. I have everything disconnected as stated but nothing comes up with LVDS and power lines to the motherboard disconnected.

You need to read the thread thoroughly. You have to jumper voltages to the correct spots, just disconnecting stuff ain't going to do anything

[Diah]

I have the same TV with the 5 blinking red lights. Just wondering how you are able to get the colors on your screen. I have everything disconnected as stated but nothing comes up with LVDS and power lines to the motherboard disconnected.

follow post 4 at this threat

[ChattFix]

Diah thanks for that. I'll start reading. Also I have purchase V160 8Th Generation LCD Screen Tester Set 4K-Vbyone & 2K-LVDS For Screen Test. Can I use this to test on this Sony TV?

My reading were incorrect from EazyBone here is what I have below.

1.TCON_12_ON = 0V (never changes when I hit power)
2. BL_ERR = 0V
3. EVDD_ON = 3.38V
4. AC_OFF_DET = 0V
5. POWER_ON = 0
6. STBY = 0V
7. GND = OV
14-20. REG 12V = 12.8V

PSU to TCON.
1-3 0v
4-6 0v
7-18 0v
19-30 0v

[Diah]

Diah thanks for that. I'll start reading. Also I have purchase V160 8Th Generation LCD Screen Tester Set 4K-Vbyone & 2K-LVDS For Screen Test. Can I use this to test on this Sony TV?

My reading were incorrect from EazyBone here is what I have below.

1.TCON_12_ON = 0V (never changes when I hit power)
2. BL_ERR = 0V
3. EVDD_ON = 3.38V
4. AC_OFF_DET = 0V
5. POWER_ON = 0
6. STBY = 0V
7. GND = OV
14-20. REG 12V = 12.8V

PSU to TCON.
1-3 0v
4-6 0v
7-18 0v
19-30 0v

yours measurement had error... not correct 100% .. but please do it again with photos

[ChattFix]

yours measurement had error... not correct 100% .. but please do it again with photos

Thank you for your response Diah . The only difference I saw was in the pins below located at CN6401:

1.TCON_12_ON = 3.38v for half a second then down to 0v
3. EVDD_ON = 0v then when I hit power button goes to 3.38v then to 0v once red light is present.

Here are the picture below where I started at pin 1 on both PSU to MB then PSU to TCON. I noticed that R712 does not have continuity, is it supposed to have continuity? R712 also flashes 12v on one side for half a second.

[vinceroger69]

sounds like r712 maybe open circut maybe lift one side from board and re check

[ChattFix]

sounds like r712 maybe open circut maybe lift one side from board and re check

vinceroger69 I removed one leg and still no continuity. I'll look to see a replacement. Is there something else I should check before replacing?