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No output volt 200v shown in fly back transformer 200v point

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Posted on Jan 02, 2017

gopakumarg43
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SOURCE: power supply input volt are shown in fly back but output volt 200 are not shown in fly back.Please send what's reasons?

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result will display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.

Posted on Dec 31, 2016

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Power supply input volt are shown in fly back but output volt 200 are not shown in fly back.Please send what's reasons?


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result will display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.

Dec 31, 2016 | Televison & Video

1 Answer

SYMPHONIC WF-1901 DEAD


Here is a troubleshooting guide for you:

Flyback Transformer


Check the 200V line on the CRT Board, it could be 170V also,

meaning the flyback is not oscillating.


To have the TV working, it should have at least a B+ of 95V

Check the main regulator.

Maximum supply voltage is about 135V on some TV models.

Sep 22, 2012 | Televison & Video

1 Answer

Takes time to start up


Hard to say what is wrong but silicone is only good for about 10,000 volts and the transformer outputs over two times that.

Unless a very good or expensive set replace it. Seen a lot of people over the last 40 years try the silicone and they even had at one time a liquid in a bottle called Corona Dope---no joke that was the name--red thick liquid you brushed on (did not work either.)

Jun 14, 2012 | Televison & Video

2 Answers

Will not turn on


See my tip at http://www.fixya.com/support/r4916941-diagnose_repair_projection_tv_high for help solving your problem.

Thanks for using FixYa and for the great rating.

hardrocko

Aug 15, 2011 | RCA P56923BL 56" Rear Projection...

1 Answer

Shorts out the horizontal output transistor


check the right voltage in the power supply first.then check the driver circuit and last the flyback transformer.sometimes there is a faulty shorted capacitor in the 200v or the horizontal yoke coils

May 04, 2010 | RCA Televison & Video

2 Answers

B&D 400W Inverter won`t run my laptop


even the smallest inverter can run a laptop, something is wrong with this unit

Jul 25, 2009 | Black & Decker 1000w Power Inverter

1 Answer

Sony boombox model cfs-b11 transformer


Your tape requires 9 volt transformer as shown in below schematic..

7676255.jpg

Part number is 1-450-016-11

Mar 05, 2009 | Sony Audio Players & Recorders

1 Answer

Tv will not come on


HELLO. it sounds like it could be a couple of things why your set will not come on. 1. you could have a blown fuse.on the chassis. 2. you could have a bad power supplly transformer. 3. you could have a bad horizontal output transistor and a bad fly back transformer. it could be one of them or both of them as well as a blown fuse. because the fuse is blown from the horizontal output transistor burning out or the fly back transformer burning up. check and see if you have a burnt fuse, the size iof the fuse will be 5 amp to 6.3 amp fuse on the chassis right inside where the 110 ac cord comes in and hooks to the chassis. the fuse should be right there, look for it. hope this helps you"GOOD LUCK"

Aug 09, 2008 | Televison & Video

1 Answer

No power.its plugged into the outlet and it works. red power buttom not on tv


HELLO. it sounds like it could be a couple of things why your set will not come on. 1. you could have a blown fuse.on the chassis. 2. you could have a bad power supplly transformer. 3. you could have a bad horizontal output transistor and a bad fly back transformer. it could be one of them or both of them as well as a blown fuse. because the fuse is blown from the horizontal output transistor burning out or the fly back transformer burning up. check and see if you have a burnt fuse, the size iof the fuse will be 5 amp to 6.3 amp fuse on the chassis right inside where the 110 ac cord comes in and hooks to the chassis. the fuse should be right there, look for it. hope this helps you"GOOD LUCK"

Aug 09, 2008 | Televison & Video

5 Answers

Horizontal output transistor keeps failing


The horizontal output transitor is always connected to the primary winding of the flyback transformer (via collector) and also to the horizontal deflection coil via an electrolytic capacitor. The most likely suspect for damaging the transistor is the fylback transformer. In some countries there are electronic stores that test flyback transformer by winding a few turns on the ferrite core and applying a test voltage. This test will only test the secondary. The primary winding is difficult to test for turn to turn short because the resistance is quite low and you do not know the 'good' resistance.

May 15, 2007 | ViewSonic E70f 17" CRT Monitor

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