Hisense 65R6E3 double-image / horizontal strips - TCON?

[jason123]

Hello all. 3 years back, with your help, I replaced the LEDs on this TV. It's been working great. Yesterday, I turned it on (garage TV), and it has blurred horiz / vert lines as you see in photos. Definitely no physical hit or damage. Top 1/6th of the screen is perfect. Could it be main / TCON board? No tabs to cut on this model. Thank you

[jason123]

everyone Any comment on this please? I'm hesitant to buy and try and would like to leverage your experience if possible? Thank you

[nomoresonys]

Could be loose tab bonds, maybe check youtube for diy tab bond "fix" or similar words, lots of results: Vertical or horizontal lines appearing on a TV screen can often be attributed to loose or faulty connections, including a common issue known as "tab bond failure". Tab bonds are the thin, flexible ribbon cables that connect the control board to the LCD panel, carrying the signals that create the picture. When these bonds become loose or lose contact, either due to physical damage, manufacturing defects, or the gradual effects of thermal expansion, the signal flow is disrupted, resulting in lines on the display.

[nomoresonys]

Have had those exact lines a few times and it was a loose tab bond, was usually one on the top corner.

[jason123]

Thank you.. this TV has the electronics on the bottom. No side tabs. It has connecting ribbon tabs (u shape tabs) - removed, cleaned and attached - no change. Maybe I'm misunderstanding - do you mean how the electronics board attach to the panel?

[nomoresonys]

The tab bonds are where the buffer/adress boards attach to the screen, they can become loose, I use to shim the old ones that had a nice full frame where it wasn't too hard to get something to stay in there. Some good tape might get the job done too, example there: https://www.youtube.com/watch?v=purk_SyiT44

[jason123]

The tab bonds are where the buffer/adress boards attach to the screen, they can become loose, I use to shim the old ones that had a nice full frame where it wasn't too hard to get something to stay in there. Some good tape might get the job done too, example there: https://www.youtube.com/watch?v=purk_SyiT44

Thank you.. I'm unable to find any tab that makes any change when pushed - seems, maybe, this is something else?

[nomoresonys]

Can you post the usual pictures of the insides.

[Diah]

Hello all, Definitely no physical hit or damage. Top 1/6th of the screen is perfect. Could it be main / TCON board? No tabs to cut on this model. Thank you

the Definitely here there are damage, calm down and bring the truth from other house hold members.

[jason123]

the Definitely here there are damage, calm down and bring the truth from other house hold members.

Diah - It doesn't help me to conceal the truth This set i hung from the ceiling at a high-ceiling garage, 10-12 foot from the ground, and I'm the only one who uses the garage - kids are grown up in their own houses - Hence the "Definitely" - there is definitely a problem with the set, just not feasibly a physical damage

[jason123]

Can you post the usual pictures of the insides.

Here you go

[Diah]

disconnect half of panel from T-CON once a time and see which side will show good picture

[jason123]

disconnect half of panel from T-CON once a time and see which side will show good picture

Each half comes on, but with lines in the picture.

[nomoresonys]

I would try a replacement tcon, maybe check for the usual tcon voltages, can look at youtube for tcon checking. Make sure your tcon connections are good and the flat cable and ends are clean set correctly in socket and not damaged.

[Diah]

Each half comes on, but with lines in the picture.

show please the lines effect you are talking on

[jason123]

show please the lines effect you are talking on

Same as photos in Post # 1, Diah. Slightly less prominent on the left hand side of the TV (As you're looking at it) when only that half is connected. Right hand (as you're facing the TV) is just as bad as in #1

[Diah]

Same as photos in Post # 1, Diah. Slightly less prominent on the left hand side of the TV (As you're looking at it) when only that half is connected. Right hand (as you're facing the TV) is just as bad as in #1

however i didst understand what different you got, but if the result as you showed at POST1#1 then try to test the PSU and T-CON & the Panel as stand alone test... main boards disconnect from PSU and T-CON , runing the PSu stand alone and feed T-CON with 12V. we will see how the color pattern will be

[jason123]

however i didst understand what different you got, but if the result as you showed at POST1#1 then try to test the PSU and T-CON & the Panel as stand alone test... main boards disconnect from PSU and T-CON , runing the PSu stand alone and feed T-CON with 12V. we will see how the color pattern will be

To make sure I understand, you want me to connect external 12VDC to the TCON board, disconnect LVDS cable from main board to TCON and run the set? You expect some color pattern on the screen?

[nomoresonys]

however i didst understand what different you got, but if the result as you showed at POST1#1 then try to test the PSU and T-CON & the Panel as stand alone test... main boards disconnect from PSU and T-CON , runing the PSu stand alone and feed T-CON with 12V. we will see how the color pattern will be

Diah, can you tell me which tvs this test works for? Is it any of them or does it have to be a recent year or design etc?