Question about Philips 36PT842H 36" TV
My television was turned on and was being watched for about 30 minutes when we went to change the channel the picture went blank. My daugher escaped out of the satellite menu and there was no picture. They tried to display the menu for satellite, still nothing. The TV was unplugged, turned back on and the light on front next to the power button blinks 5 times and is blank for a few seconds then blinks 5 times again. I switched satelitte receivers and still no picture or sound
Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.
Posted on Jun 03, 2017
first place to start on this chasss is with a known failure in the horizontal circuit. there is a capacitor 2455 and 2 transistors locations 7461 and 7463 that have caused a wide variety of failures. i would recommend replacing these components before proceeding as they could be the whole of the problem.
Posted on Aug 20, 2008
It sounds like the voltage regulator in your power circuit. Also you have a capacitor that's going bad somewhere and won't hold a charge. That's why the picture is fine for a while then turns green. Unless you service TV's this one will have to be brought into the shop. Unfortunately it'll cost more than the TV is worth to get it fixed unless it's still under warranty. These days TV's that small aren't worth fixing. You're better off buying a new TV.
-An Ex-TV Repairman
Posted on Jul 12, 2009
You either have a cold solder joint in your horizontal deflection circuits or your or in your horizontal output circuit. please be careful due to the fly-back transformer still holds power even unplugged until you discharge it.( ground it out). Hope this helps.
Posted on Jan 03, 2010
just open the service manual & change the option to 1-128 ,2- 215 , 3- 065 , 4- 000 , 5- 192 , 6- 129 , 7- 112
Posted on Jun 12, 2010
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