Good evening my friends, I have a TV 43 of BLAUPUNKT MODEL: BA43F4142LEB. It has vertical lines on LCD. The left panel is off while only with right panel it plays normal. Which lines I have to cut off on COF-BOARD to play normal?

On the left side of the tcon you have pads CK1-CK4 measure with a meter which tracks are responsible for these signals on the right side of the tcon and using the test method tape the connections to the matrix with thin tape , it is difficult to say which pin to disconnect you must try .

Try it with CK signals, but don't cut, just try to tape on the TCON.

>>21648338 Yes, I need the lines, which pins.... 1 to 8 etc

>>21648880 I did it. Now it's playing normally but have some lines yet. Look the image below. Added after 46 :Img2

A colleague is aware that this is not working in the long run and additional wonders may come out in the image after time. What type of matrix is it? For yourself it's ok, but for sale, oh, not nice.... I understand that the future customer will be informed of the damaged matrix.

Blaupunkt BA43F4142LEB Vertical Lines Issue: Which COF-Board Lines to Disconnect?

abramkyr1995 201 6

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#1 21647662 29 Aug 2025 11:07

abramkyr1995 abramkyr1995

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Post #1
21647662 29 Aug 2025 11:07

Good evening my friends,

I have a TV 43" of BLAUPUNKT MODEL: BA43F4142LEB.

It has vertical lines on LCD. The left panel is off while only with right panel it plays normal.

Which lines I have to cut off on COF-BOARD to play normal?

Attachments:

blaupunkt_43.JPEG Download (1.3 MB)
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#2 21648338 29 Aug 2025 23:09

kudla gerard kudla gerard

Level 14

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Post #2
21648338 29 Aug 2025 23:09

Try it with CK signals, but don't cut, just try to tape on the TCON.
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#3 21648470 30 Aug 2025 09:59

abramkyr1995 abramkyr1995

Level 8

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Post #3
21648470 30 Aug 2025 09:59

>>21648338 Yes, I need the lines, which pins.... 1 to 8 etc
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#4 21648880 30 Aug 2025 18:46

kudla gerard kudla gerard

Level 14

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Post #4
21648880 30 Aug 2025 18:46

On the left side of the tcon you have pads CK1-CK4 measure with a meter which tracks are responsible for these signals on the right side of the tcon and using the test method tape the connections to the matrix with thin tape , it is difficult to say which pin to disconnect you must try .
#5 21653939 05 Sep 2025 11:18

abramkyr1995 abramkyr1995

Level 8
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Post #5
21653939 05 Sep 2025 11:18

>>21648880 I did it. Now it's playing normally but have some lines yet. Look the image below.

Added after 46 [seconds]:

Img2

Attachments:

blaupunkt_43_2.JPEG Download (1.38 MB)
#6 21653941 05 Sep 2025 11:19

abramkyr1995 abramkyr1995

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Post #6
21653941 05 Sep 2025 11:19

>>21653939

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blaupunkt_43_3.JPEG Download (1.78 MB)
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#7 21653966 05 Sep 2025 11:43

Telo Telo

Service technician RTV

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Post #7
21653966 05 Sep 2025 11:43

A colleague is aware that this is not working in the long run and additional wonders may come out in the image after time.
What type of matrix is it?
For yourself it's ok, but for sale, oh, not nice....
I understand that the future customer will be informed of the damaged matrix.
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Topic summary

A Blaupunkt 43" TV model BA43F4142LEB exhibits vertical lines on the LCD screen, with the left panel non-functional while the right panel operates normally. The issue is related to the COF (Chip On Film) board connections. The user seeks guidance on which specific COF-board lines should be disconnected or cut to isolate the faulty left panel and enable normal display operation using only the right panel.
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Blaupunkt BA43F4142LEB Vertical Lines Issue: Which COF-Board Lines to Disconnect?

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