Question about Televison & Video
Check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Pull up older posts. 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. http://electronicshelponline.blogspot.com/
Posted on Dec 14, 2016
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Posted on Jan 02, 2017
SOURCE: Sony 2167 No power on
I have not worked on your particular model. But, I have serviced many TV sets over the years. My answer will ge generic.
Check all the capacitors in the horizontal output stage and power supply areas for high ESR. All the caps that are out of spec must be changed.
The high voltage multiplier & flyback can also cause the fault you are having.
You have to consider that the DC voltages are not the only important spec that has to be met. There are also many power drive signals that work with reactive devices. If there is any defect in the critical areas there will be failures.
Posted on Nov 26, 2008
Hello, just try this first.
Unplugged the unit the power outlet for about 60 sec.Then power it on again. If you have surge strip along the line. You should directly switch in on power outlet only. If this doesn't help.
As the relay is working you have power in standby mode. Check its supply voltages if its ok. Secondly you can check the the B+ supply it is in DC, If this is a crt type tv, check its horizontal output transistor, Check its flyback for short circuit. Capacitor near to it rated almost 800V, and deflection coil.
Just for input, hope it helps
Posted on Apr 20, 2009
Replace the electrolytic capacitors 220uf and 1000uf/35v on your primary section of the regulator. also check the .01 Mylar cap. in parallel with b+ rectifier diode. also check if the horizontal output is shorted..
Posted on Feb 17, 2011
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