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roger pangdao Posted on May 04, 2015
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How can i repair my sharp tv, when i connect the yoke it blowout the regulator output,

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Jeff Kraus

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  • Contributor 46 Answers
  • Posted on May 05, 2015
Jeff Kraus
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Sounds like a shorted yoke return coupling capacitor look for cap values .22uf to .56uf at 200 to 400 volts or similar markings ezamples 224j200, 474k200, 564j250 numbers ahead of the letter is capacity 474=.47uf the letter shows the tolerance J=5%,K=10% Numbers after the letter indicate voltage. If this cap is shorted it will short horizontal B+ to B- through the yoke when it is connected. use an ohmmeter check from Horiz.output transistor collector io B- with the yoke connected if near 0 ohms disconnect yoke & check again in high or infinite the cap is shorted it's located in the low side of the yoke.if you need further help i'll need a model number.

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  • Sharp Master 76,851 Answers
  • Posted on May 04, 2015
The Knight
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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Search for posts named "My service table today"

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Related Questions:

3helpful
1answer

Helo sir, i have a L.G T.V. Model No kf-20p32..is blowing the horizontal output..i change the flyback tranformer ,bt is still blowing the horizontal output
Check all the capacitors connected to horizontal output transistor. Especially one connected with its collector to ground. a high voltage [1.5Kv]. capacitor. Replace them. Check for any short inside the winding of the yoke. It is difficult to detect the winding short inside the yoke. Connect an other yoke in place, after pulling out the CRT base card out of the TV. This you can make sure about the condition of the deflection yoke.
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In most cases the vertical output IC and possibly a fusible resistor off of the high voltage transformer are bad. The vertical output IC is located on a heat sink and usually right next to the vertical yoke winding connectors that are green and yellow in most sets. Please take a moment to rate my answer..Thanks...
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Nov 24, 2009 • Sharp 27G-S60 TV
0helpful
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hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
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Jul 18, 2009 • Sharp LC-C4655U 46 in. LCD TV
2helpful
1answer

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hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
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Read full answer
Jul 07, 2009 • Panasonic CT-32SL13 32" TV
0helpful
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Jun 12, 2009 • RCA L26WD12 26 in. LCD TV
1helpful
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Good picture, no sound. you can turn the tv on and off and eventually the sound will come on? tried bypassing the hd digital box, still didn't work.
hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...thank u!!!
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Read full answer
Jun 11, 2009 • Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...
0helpful
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hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...thank u!!!
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Read full answer
May 29, 2009 • Samsung Televison & Video
0helpful
1answer

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1) Solder any / all bad connections

2)troubleshoot,locate and replace any bad parts in pincushion
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3)No problem found ?.........could be bad yoke.................T.
Read full answer
Dec 21, 2007 • Sharp 27J-S100 TV
2helpful
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Thin horizontal line
Defective components in vertical deflection and output circuit inclusive of vertical output device, coupling capacitors, and yoke connectors. Passive devices such as electrolytic capacitors, coils, and resistors to/from power supply circuits. If your tele is more than 10 years old dump it and get a newer product. $100 USD is a fair price to diagnose and attempt service, depending on age and configuration. Older products may not have replacment parts available at any repair cost. There may be a pot for adjusting the vertical size. If so, it may be dirty. If you can find it, try adjusting it which could clean it. BE CAREFUL -voltages are very high.
Read full answer
Mar 20, 2006 • Sharp 27H-S60 TV
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Helo sir, i have a L.G T.V. Model No kf-20p32..is blowing the horizontal output..i change the flyback tranformer ,bt is still blowing the horizontal output

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