Telefunken 24550s27yxd

yokoono Çevrimiçi

yokoono

TFC Team
20 Mar 2019
2,445
72
Measure if the t-con is powered by 12V. Measure the voltages on the t-con especially VGH(VONE) and VGL(VOFFE). If possible, disconnect one ribbon at a time to the panel and see if the image appears. Clean the contacts from the ribbons.
 
ralph65 Çevrimdışı

ralph65

Aktif Üye
27 Nis 2021
52
58
Measure if the t-con is powered by 12V. Measure the voltages on the t-con especially VGH(VONE) and VGL(VOFFE). If possible, disconnect one ribbon at a time to the panel and see if the image appears. Clean the contacts from the ribbons.
The 12v voltage is present. The t-con is integrated into the LCD panel. I need to check vgh and vgl.
 
yokoono Çevrimiçi

yokoono

TFC Team
20 Mar 2019
2,445
72
VGH and VGL are voltages generated by a dc-dc converter.
VGH 25-30V
VGL 5-10V negative
24550s27yxd Is this the tv model?
 
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yokoono Çevrimiçi

yokoono

TFC Team
20 Mar 2019
2,445
72
It is installed with the OK key on the remote control pressed and the TV plugged in. The key is released when the stby LED of the TV starts flashing quickly.
 
yokoono Çevrimiçi

yokoono

TFC Team
20 Mar 2019
2,445
72
The software is unzipped on a stick formatted with FAT32. I'm surprised that you knew how to measure the 12v voltage on the t-con and you don't know how to install a software.
 
ralph65 Çevrimdışı

ralph65

Aktif Üye
27 Nis 2021
52
58
The problem is that if the Main does not read the firmware. I did with the ok button but nothing.
 
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yokoono Çevrimiçi

yokoono

TFC Team
20 Mar 2019
2,445
72
The problem is not software but hardware. Call a service. For repair you need knowledge of electronics and dedicated equipment.
 

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