Question about Philips 20PT6446 20" TV
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Posted on Jan 02, 2017
I believe this set has a horizontal output that has a damper diode inside. you can check inset or out, most popular is out set. take multimeter and put on ohms or continuity and touch each leg by holding one lead to end and if you are looking for a short then in continuity it will beep or zero or very ohms. And Ohms just the same way. looking for low ohms like 1.0 or 0.9 or anything close. Switching leggs back and forth. If all three legs are shorted then replace. but in this one 2 can be shorted and still be good, just depends on which ones
Posted on Aug 29, 2007
SOURCE: transistor lost.
if you are replacing 7402
also replace diode 6404 this diode even thou it test goo will in long term overheat 7404 and caus it to go bad by leakage.
and if 7402 gose bad it is regulating the 15v stanby volts that is 7412 is also going to be bad so replace 7412 also
the part numbers are:
7402 = # 932211676682
7412 =# 932210514682
Posted on Jan 13, 2009
SOURCE: i want to know the
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
Posted on Sep 29, 2010
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