Phillips TV 27pt543s37a ch#L01.1u AC-7638
For those of you who've found that a little bird is keeping your tv from powering up, set goes tweet tweet tweet when plugged in, It may be that transistor 7460 has gone short. From the Philips service guide, it is recommended to unsolder one leg of coil 5561 to see if the noise stops. If it does it points to 7460 being bad. There is also a article at
that lists the most common parts replaced by Philips techs on a dead L01.1 chassis. The schematic for this chasis can be found at http://www.siliconchip.com.au/cms/A_30321/article.html
Now, if I can just find a source for the parts.