Question about Philips 20DV6942 20 in. TV/DVD Combo

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Blown or damaged transistor

How do I repair the damaged or blown transistor. Can I repair this myself? Should I have a tv repair place do it for me?

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I recommend to you to take it to a center of service, since sometimes there are damaged more parts than those who see seen wing although if you himself want to do it then, that I number of part is to give you another suggestion of the possible parts that are damaged

Posted on Mar 01, 2008

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Posted on Jan 02, 2017

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Your TV need a through checkup. There sill be a reason for the blow up to this transistor. Find the reason first, rectify it, and then replace the damaged component. Contact any experienced service technician.

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if no any power indicator that light or even blinking, the first place to be check will be the power supply section you must check weather the fuse is blown.if the fuse is blown before you replaced with new one you need to check other component in the power supply section like transistor and diode. so this case need proper trouble shooting, if you think you don't have enough idea in any electronic repair just leave it to the trained tv technician.

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if their is no any power indicator at the front panel the cause is either the primary fuse at the power supply section blown. and then if the fuse is blown that was mean the regulator transistor and the horizontal out put transistor could also damaged. this case can be hand held by trained technician. if you want a do it with your own just make sure you have at least a basic knowledge in electronic repair since you are dealing with some high voltage parts a care must be needed.

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the problem is in the power supply or in the horizontal output section HV.it can be the tv has a blown fuse a regulator damage.or the horizontal transistor is damage if you have no knowledge of electronics.take your tv to a repair tech.good luck.

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1 Answer

How can I obtain a plugin 100w module for my Stagepas 300 as both output transistors are short circuit plus several pcb mounted driver transistors/resistors damaged.Thank you David Bunn


You could try buying the part from Yamaha America... the music section in California. Transistors and resistors are easily replaceable so repair of the board would be the path I would take myself... but then I am an electrical engineer.

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1 Answer

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You have to try in Google search.

If the transistor body is not damaged, you can read the type no. Replace it with identical No. Make sure the diodes and capacitors are not damaged. Check with multi- meter

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1 Answer

I have blown the protection circuit on my yamaha rx 600d amp anyone with a clue whats needed to fix?


Hi friend,when something goes wrong in the output of the amplifier the protection circuit take place to prevent further damage could cause by DC power such as speakers or other related circuits...I think in your situation either one or both output amp stage have blown,then the protection cct turned on (not blown protection circuit!?). If so you have to check all the output transistors for short cct, if shorted you must also check all the DC bias cct nearby such as small transistors,resistors...If you are not familar with amplifier it better to find a tech as all amplifiers need a very precide repair technic , If the DC BIAS were wrong , when you turn on the power it will blow straight away! All times and cost will be waisted!
GOOD LUCK!
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1 Answer

Hello. I have a punch 551 4 channel amp. The


The cost of the replacement parts is minimal if there is no damage to the audio circuit. If there are shorted output transistors, the cost of replacement parts won't be significantly higher but it may be more difficult to repair. If you're going to try to repair it yourself, read through the following page:
http://www.bcae1.com/repairbasicsforbcae1/repairbasics.htm

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1 Answer

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You can't repair transistor damage. I'm sorry.
If the computer is new, you can contact the company and ask them for a new one or ask for a discount.

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