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Thread Tools | Display Modes |
04-08-2021, 11:25 AM
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#1 |
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Member
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Telefunken D32F289M4CWI no picture Only the sound
The problem with the Telefunken LCD TV "D32F289M4CWI" is that since switching from one program to the other, the picture is gone and only the sound can be heard (screen remains black).
The TV is about 2 years old. Would still be grateful for help many thanks |
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04-08-2021, 12:29 PM
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#2 |
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Badcaps Veteran
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Re: Telefunken D32F289M4CWI no picture Only the sound
(screen remains black) If you mean there's no backlight, check the screen by shining a flashlight on it, maybe at an angle, see if there's a picture or hit menu see if there's a display at all with flashlight.
__________________
(Signature) One of the first and least expensive things you can do when you have an issue is take the powerboard out of the tv, flip it over and look the solder joints over with a magnifying glass if needed, add a little flux to make the solder flow well and add solder to any joints that look even a little suspect. You can practice on a scrap pcb board if needed, careful not to bridge any joints, and always let the board sit for quite a while or discharge the big caps with an appropriate resister before working on it (safety first) to try to keep from getting shocked, it doesn't take 1000 volts to KILL, a lot less can kill, so be careful, it's only a tv. Last edited by nomoresonys; 04-08-2021 at 12:30 PM.. |
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04-09-2021, 01:34 AM
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#3 |
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Member
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Re: Telefunken D32F289M4CWI no picture Only the sound
Yes I can take a picture with low light
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04-10-2021, 03:18 AM
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#4 |
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Member
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Re: Telefunken D32F289M4CWI no picture Only the sound
I tested the LED again, they are all fine
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04-10-2021, 03:45 AM
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#5 |
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Badcaps Veteran
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Re: Telefunken D32F289M4CWI no picture Only the sound
Read and comprehend/translate post #2.
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04-11-2021, 01:53 AM
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#6 |
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Member
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Re: Telefunken D32F289M4CWI no picture Only the sound
Yes I only have sound, no picture and no obstruction lighting
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04-11-2021, 02:27 AM
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#7 |
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Badcaps Veteran
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Re: Telefunken D32F289M4CWI no picture Only the sound
Check the fuse on the tcon board, meter 20 vdc black - probe on metal chassis ground, red + probe on each side of fuse see if it's about 12 volts on each side.
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04-12-2021, 12:12 PM
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#8 |
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Member
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Re: Telefunken D32F289M4CWI no picture Only the sound
Yes I have 12.20V in both sides
a question, is there a list of VAVDD how much current has ?? the diode has 3.33V many thanks |
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04-12-2021, 03:29 PM
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#9 |
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Badcaps Veteran
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Re: Telefunken D32F289M4CWI no picture Only the sound
Some simple voltage testing there: https://www.youtube.com/watch?v=t11FEuu1oWU
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04-12-2021, 04:07 PM
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#10 |
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Member
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Re: Telefunken D32F289M4CWI no picture Only the sound
gives wiring diagram of this TV ??
or do I have to look for wiring diagram from T-Con? |
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