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Troubleshooting my tv does not turn on and i want to know the right connection of a power transistor in the tv receiver.and i want to know how can i check whether the line output transfomer and the transformer next to it is faulty or not

Posted by piwo on

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  • Anonymous Jun 04, 2008

    when I press the power button the tv does not turn on but the standby light blinks 9 times. when the problem first started the tv would turn on after pressing the power button a couple of time and after about 2 days then it stopped working all together.

  • nobigtv Sep 02, 2008

    kp-46wt520 will not come on stand by lt bkinks

  • SteveoTivo Jan 09, 2009

    I have no power at all, my wife called Direct TV and they told her to unplug it 15 seconds. It never powered back up the fan works but there is no yellow or red lights. Dose this mean the hard drive burned out?

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Mike Longo

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If you want us to help you, you must provide the make and model of your set.

Posted on Aug 29, 2007

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Integra 5.3 keeps turning off so TV will not go on. It flips back to standby mode after 2 seconds and screen says check signal cable or check connections. This issue started yesterday with a loud noise...


you most likely have a blown main output transistor or a shorted speaker. first get a mutimeter and set to lowest ohms setting and check for 4-8 ohms ( CHECK IMPEDENCE rating on back of speaker) at the speaker terminal of the speaker. if this checks out then you take the meter and set to DC and place the + / - terminals to the speaker connection on back of receiver then turn on the receiver . notice if you have any dc voltage at any sp terminal, if dc is present you have a blown output transistor. If you are not an electronic tech please refer your unit to a qualified service tech. I hope this helps.

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I think your Receiver is going into protection mode. This happens especiaally when speaker cables are not connected properly. They are either loose or are touching each other or to the body of the receiver or the speaker ha blown.

You are lucky that it has not blown any transistor of your Receiver.

Please immidiately disconnect all your speakers cables and the cable form the mian.
Reconnect only the cable from the main and try to select the TV, it will switch on. If it switch on then you can be sure it were the speaker cables.

Now power off, main cable off, put all the speaker cables back and see if the everything all right.
If you still have a problem, let me know we can futher trouble shoot.
Best of Luck.
Please rate this solution and thanks for using FixYa!

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I HAVE AN ONKYO TX SR500 AV RECEIVER WITH A 5.1 BOSE SURROUND SOUND SYSTEM WITH SONY TV. MOST RECENTLY ONLY ONE OF MY SPEAKERS IS WORKING ON MY SURROUND SOUND. ALL WIRES ARE CONNECTED. I CHECKED ALL...


The symptom you described can be caused by any number of things. I always start with the output power transistors which are the first things to blow with a speaker output overload condition. Unplug the power cord to your unit, remove the top cover and use an ohmmeter to check resistance from C to E on all 10 of the power transistors (Q6050 thru 54 and Q6060 thru 64) attached to the large heat sink. Blown transistors typically read <1 ohm, compared to good transistors that are >10k ohms. If you find a bad transistor it will need to be replaced.

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