i have a 1999 philips magnavox big screen model #9p6034 c102 was watching tv and then it made a static sound and then no noise, i have tryed to turn off & on tv and put volunm up & down but nothing. the picture is working fine, just cant hear anything. please help!!!! it's driving me nut's not hearing anything thanks and the chassis model number is ptv835

"per bullvw - There is also a article at http://www.siliconchip.com.au/cms/A_30321/article.html that lists the most common parts replaced by Philips techs on a dead L01.1 chassis." Here is the article (note that the below article speaks directly to of the L01.1A chassis for a 29" model, not the L01.1U chassis for the 27" model): Philips L01.1A chassis I am beginning to see a few late-model 29PT2255/79R and 29PT2252/79R Philips TVs. I am talking about the L01.1A chassis, which came onto the market about 2001 onwards. The usual problem is that the set is dead due to the fact that the switchmode power supply is cactus. The cause is not yet fully understood but this fault normally occurs during power surges. To fix it, I order and install what I call "Fred's Mod Kit", named after a friend of mine who repairs these sets under warranty. He found that eight parts usually need replacing - the chopper transistor (7521), its driver (7522), IC7520, R3523, R3530, D6523, D6524 and possibly D6525, which is not always fitted. Of course, strictly speaking, this isn't a modification kit but only a replacement parts list. Perhaps a modification will come out in due course? Another problem that is occurring is hum in some Philips models. One in particular comes to mind, the model 29PT4873/79R (L9.1A chassis), which can get particularly bad if placed on a resonating wooden table. The cause is a deflection yoke with vibrating windings and the solution is to remove it and dunk it in Estapol varnish. Beforehand, it is a good idea to mask any areas that might be critical such as where it contacts the picture tube and the three rubber spacers. The procedure should be repeated three times, allowing it to dry after each dunking before reassembling it onto the tube neck. That should stop the windings from vibrating and fix the problem once and for all.

I agree, probably in the horz circuit. And yes, they should be repaired. No need to replace an entire circuit board, that a little solder and a hot iron will restore. The horiz ckt is the one with the large transformer(ID#5445)with a large red wire at the top, going to the picture tube(located at the rear of the circuit board). Close to the h-v transf will be the horz output transistor(ID#7560), about the size of a postage stamp, but much thicker, that is clamped to the metal shield. The horizontal driver transformer(ID#5461), located in front of the high voltage transformer. The legs of horz dvr tnsf 5461 is the part that usually gets defective connections. There are 4 legs. It's best to remove the old solder and apply fresh solder. Of course you always examine the circuit trace for any indications of any other bad connections, while you have the bottom of the ckt bd exposed. good luck, pw

I replaced both STKs. They were STK392-110. I also replaced all twelve resistors. Got them from an online store. Magnavox Convergence Repair Kit TV-KIT-008. All the same issues though. What else could it be. Any suspect fuses that may be bad.