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How to find the retrace timing capacitor in tv board.thank you

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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/
Line, faults & possible causes are given with illustrations. You can get an idea about the fault to an extent.

Posted on Apr 03, 2015

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Never heard of it that's a new one on me good luck

Posted on Apr 03, 2015

  • chanuka Apr 03, 2015

    It say safety cap"also

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Posted on Jan 02, 2017

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SOURCE: retrace lines in top of tv...

These lines are cause by defective capacitors in the vertical section of the TV. No adjustment will work unless the capacitors are replace. The values of the capacitors are between 1uF, 10uF or possibly a 47uF.
I do not have the service manual at this moment but you can google it by the model number of your TV.
Let me know if you need further assistance.

Posted on Jun 16, 2009

maatmartin7
  • 1208 Answers

SOURCE: I have a panasonic tv with retrace lines at the topI

If you can locate the vertical IC you are nearby!. You will have to resoder the grounds on the vertical IC and any cap in the immediate area of this vertical IC is weak. I would replace them all as they will pull each other down. There may be four caps and the largest one, possibly a 25 volt 2200MF would be the only good cap. I dont have the specs on this set, but this will surely lead to a good repair!

Posted on May 06, 2010

Testimonial: "thanks the three caps near the ic fixed the retrace ligns"

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1 Answer

Retarce line


Diagonal retrace lines at the top are usually the result of bad electrolytic capacitors in the vertical deflection circuit most vert. deflection circuits derive operating B+ from a horizontal flyback transformer winding rectified & filtered usually around 24 volts the electrolytic capacitor on this supply loses capacity or may totally go open causing the retrace lines,sometimes other electro. caps in the vert circuit can cause this too, depending on the age of the tv you may find multiple substandard electrolytic caps it's best to test all for capacity & esr. Without knowing more details about your tv brand,model and/or chassis i can't help further.

Apr 14, 2014 | Sansui Televison & Video

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HD52W140 White screen with retrace lines then shuts down


This has the ATC311 chassis. I have found that capacitor C14703 has actually been loose on the deflection board and that had caused the set to have a white screen with retrace lines then the set would shutdown. I resolderd this and normal operation was resumed.

on Feb 23, 2008 | RCA HD52W140 52" Rear Projection...

1 Answer

I have a Curtis Mathes 19" Color TV Model CM19102 and the worg "Line" appears in upper right corner of screen and I cant change it.Thanks.HR Rose


Hello
There are two resons for this fault. The first one is with less heght or vertical lenearity adjustment. The second one is with due to weak electrolytic capacitors in vertical output section on the circuit board. In most cases, replacing all the electrolytic capacitors [four or five of them will be there]; will rectify this problem. The line you see on the upper part of the screen is techniclally called as vertcial retrace line. The main cuse of this will be due to weak capacitors on the circuit of that section itself. OK.

Nov 24, 2011 | Televison & Video

1 Answer

Picture is too large for screen


You did not specify a brand, or model number. In any case there is a pincushion problem. Sometimes a bad ground, or leaky diode in the horizontal section. It may be a bad resistor or retrace capacitor. It may be your switching transistor (NTE 2361, see cross references) next to the horizontal transistor. Could be an open coil etc. There are many possibilities. You must narrow it down in the horizontal deflection are of the TV main board. Sorry I cannot be definite in my answer. A TV tech always appreciates a brand and model number. Thanks for asking and show all hands of support!

May 20, 2011 | Televison & Video

1 Answer

I have a blurry picture on rt side of screen (1/6 area) that's been intermittent but lately has been there almost all the time. I also had power supply problem that I fixed by replacing three overheated...


HI:
Check Inverter board for buldging capacitors also there are two of them on the inverter that like to go faulty causing low lighting on one side. Its also a good tool to retrace you steps and open the unit and check all cabling and connectors especailly the LDVS runing between the T-CON Board and the Main digital board.

Nov 10, 2010 | Samsung 52 in. Flat-Panel LCD HDTV

1 Answer

My picture tube has a pin-cushion look..any suggestions??


You may have a bad ground on a large diode that has a ring around the diodes leg and a bad retrace cap. The diode is mostly the problem first..if not you will need a retrace cap as well. See a tech and share this info with them! Also...... these are located on the horizontal deflection of the TV board! Thanks for your question!

Mar 09, 2010 | RCA F32648 32" TV

2 Answers

Retrace lines in top of tv...


These lines are cause by defective capacitors in the vertical section of the TV. No adjustment will work unless the capacitors are replace. The values of the capacitors are between 1uF, 10uF or possibly a 47uF.
I do not have the service manual at this moment but you can google it by the model number of your TV.
Let me know if you need further assistance.

Jun 16, 2009 | Toshiba 27A45 27" TV

1 Answer

Zenith tv, video retrace lines.


how is the 200 volt supply to the video output transistors??
measure the collector voltage of the video output transistors with the crt board on and off the crt. if voltage goes up when crt board is off then crt shorted

Apr 28, 2008 | Zenith Z25X22S 25" TV

2 Answers

Red Horizontal Lines


they gona get worse to dead circuit, a small capacitor (problably in the neck board) is bothering you, get a tech now that he can see the problem, gonna be cheaper now....good luck ps some times the picture say to the tech was going on

Aug 05, 2006 | Sony KP-51HW40 51" Rear Projection...

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