Question about Philips 47PFL7432D/37 TV

2 Answers

When plugging in, blue light comes on for about 5 sec and goes out. Approx every 20-30 sec you can hear a relay click. No picture. When un-plugging the screen will flash blue.

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  • bobt317 Nov 13, 2010

    I am not familiar with the current LCD TVs but have some experience with CRTs. At one point while determining the symptom it flashed an error code of 63 on the red LED. This has not re-occurred. The unit was troubleshot by the previous owner and they told him that in might be the inverters. He figured that it would not be economical to repair. i unplugged the inverters and had the same symptom. Nothing is overheating, what looks like a processor chip only got up to 80 degrees F. i am just taking shots in the dark to see if I can remove and replace a board and earn a cheap TV. So if you can suggest where I might narrow it down I would appreciate. it. I was also able to find a service manual for this but have not had time to go through it. Thanks.

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  • Philips Master
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If the screen flashes blue it means that the inverters are operational. And since you get error 63 which signals a Mips protection it means that the power source is just fine and has been shut down by its own protection because there's a shot on one of its outputs.
To find out which board is defective you must check the voltages on the psu outputs. Start with the ones powering the mainboard, followed by the T-con board.

Posted on Nov 14, 2010

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  • Philips Master
  • 12,061 Answers

This is a classic "Hic-upping" switchmode power supply problem. The protection circuitry inside the SMPSU, has sensed a severe potential problem, and is attempting the shutting of the set, down to avoid a fire, explosion, or both.
This set had developed a problem, that is so severe that the set must be shut down, (This set should be removed from the Power),
What is happening is the internal "Fault" that is causing the Protection Circuitry , to detect the problem and attempt to shut down the set, keeps restarting the set, because as soon as it shuts down, the "Faulty" component(s) cool down?, and the "Fault" ostensibly "Clears" so the PSU starts up again, only for the component(s) to heat up, whatever, again and fail, so it shuts down, and if left unattended, this would continue on until the part eventually failed. As related this is called a "Hic-upping Power Supply". Any fault that involves the power supply is usually quite serious, and needs a professional, usually, unless one is familiar with servicing current day, televisions.
And in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center. Now, this point is very important for a good result, Always contact, their "Local" or a, "Head Office" Philips in your case. Ask them, for a referral to an authorised servicing center, where you ask for a "Quote". Now, when you get the information you want, then you can decide as to repair of replacement.
The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done.

Posted on Nov 13, 2010

  • MENDEZ1974 Jan 11, 2011

    HI I HAVE A Philips 47PFL7432D/37 TV AND THE POWER WENT OUT AND IT DID NOT TURN BACK ON IT MAKES LIKE ITS TURNING ON AND THE BLUE LIGHTS COME UP AND THEN FEW SECONDS LATER TURNS OF NO PICTURE AT ALL. HAD IT CHECKED THE GUY SAID IT WAS POWER SUPPLY I BOUGHT THE POWER SUPPLY AND IT KEEPS DOING THE SAME THING.... ANY =NE THAT COULD RELATE WITH THE SAME PROBLEM THAT COULD HELP

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