Philips 27 inch TV - Model # 27PT543S37A - Keeps going off!

model is a 27 inch and what is your issue or problem?

my philips projection tv model number 50pl9126d/37 has a dark screen

Try the link.It may help.

http://www.ehow.com/how_2378904_ready-change-digital-tv-broadcast.html

In short your tv has a problem on the AV connection, RF using coaxial cable is working okay.
get the tv to the w/shop, let him check the AV panel and AV processing IC.

I'm not familiar with the set but try this website. http://tv.manualsonline.com/manuals/mfg/philips/27pt543s37a.html Good luck.

the channel selection buttons are supposed to pressed at the same time. the menu page will appear on your screen, use your volume for moving the pointer. entering using one of the volume button. thanks

ctgarden girl, my set does the EXACT same thing! I too wondered if a cold room was an issue. The set is only 4 years old, and I didn't have this problem in my old place where the room was a lot warmer.

Can someone please help?!?!?!?

SYMPTOM:
Clicks and turns off after turning on set when cold. Have to turn on and off several times to work, or keep changing channels, right side of screen is black for a while.
PROBLEM: It is almost always a bad transistor and a bad capacitor. (about $0.70 in parts)
SOLUTION:
This repair is fairly straightforward. You will need a soldering iron, a solder ******, and a small torx bit. Unplug the set. Lay the TV on the floor, screen down. Remove the torx screws holding the rear cover on. There should be 10, (don’t forget the 2 by the input panel). You will see 2 circuit boards, the one of interest is the large one near the bottom of the set. This board has a retainer clip on each side that needs to be pulled out to allow the circuit board to slide out. Slide the board out about 5-6 inches. You might need to support the board so it doesn’t slide back down into the TV set. This circuit board should have numbers by each of the components. You want to look for 7461 (transistor) and 2455 (capacitor). They are located right next to each other near the center of the board. The transistor will usually overheat and discolor the circuit board immediately around it. Warm up the soldering iron and get the solder ****** ready. Heat up the solder joint while removing excess solder with the ******. Once the transistor and capacitor are free, check the numbers on each. The capacitor (round cylinder) should have “47uf” on it. The transistor should have “C33725” on it. You can order these parts from Digi-Key (google it) for about $2.50 including shipping if you use USPS option. The part numbers are: 493-1060-ND for the capacitor and BC33725-ND for the transistor. Once you get your parts, solder them in and check TV operation. It should work as it did before. This repair can be done by anyone familiar with a soldering iron in about 30-45 minutes their first time. Good Luck!!
-Courtesy of jack of all trades on howtomendit.com.

same problem... tv turns on and off repeadly while the green light flashes. seems as if the tv keeps restarting. please help.

TV turns on but doesn't stay on goes in and out then blank screen. LED light stays on during the entire time your problem is called hunting you can check power supply of your tv .It common problem in Philips T.V. Thanks