I ordered a a new transformer TM-09176 (T301) from ebay for less than 10 EUR and replaced the existing one and now the monitor works again without any issues! ~ thanks your your tip!
When checking the circuit with the thermal imaging camera after replacement, i can confirm that the transformer and also the resistor R301 beside it, do NOT HEAT UP any more. (the temp of R301 stays below 32°C which is fine). Measuring the temperature of the transformer and resistor seem to be a good indicator if things are broken.
@goaty I could send you the thermal-image if you like to add it to your description. Beside the board no BN44-00238 you may also add the transformer no “TM-09176” to your introduction as well - as this is the main part that needs to be replaced.
I took some thermal images (using SeekTermal camera) from the power-supply board of this TV:
The rectangular black transformer TM-09176 (T301) gets 60°C at one side only. But the resistor R301 beside the transformer, gets nearly 100°C! This is maybe due to unregulated high current coming from the transformer? The rest of the board stays very cool.
Zodra ze een reputatiescore hebben bent je in staat om een grafiek te zien van het verloop hiervan.
Hier is een voorbeeld van hoe de grafiek eruitziet:
Nog geen reputatiescore gekregen.