Question about Zenith B25A74R 25" TV

1 Answer

Vertical half a picture changed vert out ic & 220mfd 35v could it be vert yoke

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 65 Answers

If you have a hot air gun like used for dry the hair, apply hot air on the vertical section, if the trouble is solved sure is an electrolitic capacitor, find it hoting one by one with de solder, if not, may be is the defletion yoke, the impedance is not less then 7 ohms.Another probe for the yoke: disconect the vertical wires and supply 12 VAC with a transformer to vertical coil and turn on the tv and watch, if the vertical size is ok, the yoke is ok.

Posted on Mar 17, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I got the problem for my Panasonic 21 TV (CRT type) where's Vertical line across picture tube when the brighness adjust high. The vertical I.C already changing. Any solution > Thank you


Hello
Have you recently replaced its Line Output Transformer [LOT]?. If so have you replaced it with same type and number? Verical bars are due to LOT to Deflection Yoke mismatching. It is known as "Yoke Rigging" technically. Replacing the vertical Ic won't help in this problem . If you have replaced the LOT, the replaced one is not orginal. Ok

Oct 31, 2010 | Panasonic Televison & Video

1 Answer

My tv has a line through the centewith half o the picture at the bottom!


It is vertical stage problem .check supply voltage,and output voltage of ver ic,If it is upnormal find reason,and also resold the ver.ic .and change vert stage electrolytic filters.finaly replace vertical ic.

Aug 11, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

I have akai 2201 television set when i start the tv there comes a horizontal line on the screen with no sound & picture kindly gudie


IT IS VERTICAL OUTPUT SRAGE FAULTY. FIRST CHECK SUPPLY VOLTAGE 18VDC. THEN CHECK OUTPUT VOLEGE 15VDC.IT IS UPNORMAL FINALLY CHANGE VERTICAL OUTPUT IC.BEFORE CHANGING IC CHECK ALL THE COMPANENTS IN THE VERT.STAGE

Aug 02, 2010 | Akai Televison & Video

1 Answer

What kind of solder do i use and were is the circuit 100uf 35v sometimes vertical IC located at


- To find the IC follow the 4 wires that come from the Yoke (which is a contained coil of wires slipped over the neck of the picture tube(s)) back to the board. 2 of the wires go to the horizontal o/p and 2 to the Vertical o/p the thinner gauge wires are for the vertical.

Oct 16, 2009 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

My RCA F36648 36" TV has only the bottom half of my picture working. The top half has horizontal lines that distorte the picture. It looks like when you pull a rake through the sand the lines that are left...


You have vertical output problems.There is distortion at the top because of a faulty vert. output i.c. or a faulty electrolytic capacitor.It's possible there may be a problem at your yoke also.It needs a professional repair.

Sep 29, 2009 | RCA F36648 36" TV

2 Answers

Generic problem for all Standard Televisions


your problem is from east west ckt . there is a transformer used in this ckt which Dry solder and works inttermittent ( shrinks & expend ) . resolder this transformer . iam working with philips ......... enjoy

Sep 21, 2009 | Televison & Video

1 Answer

Have an 18 YO RCA 19 inch set and all I get for a picture is a thin line accross the middle of the set. Have sound


Vertical IC,Bad capacitors,shorted yoke, get vertical Kit. 100uf 35v, 2.2uf 50v, 1uf 50v,

Jun 11, 2009 | Televison & Video

1 Answer

SAMSUNG VERTICAL PROBLEM , BUT CHIPS ARE GOOD


you have some open resistors in the convergence circuits.

May 08, 2008 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Sony Trinitron Top Half picture blacked out


You could have a bad capacitor 35v 100uf ,1uf 50v ,VERTICAL ICs have 7-11pins depends on which one you need LA7830-or 7833,7835,7836,7837 7838 make sure you get correct part.
ThankYou for using FixYa. Have a Nice Day

Feb 07, 2008 | Samsung HCM4216W 42" Rear Projection...

4 Answers

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.

Mar 20, 2006 | Sharp 27H-S60 TV

Not finding what you are looking for?
Zenith B25A74R 25" TV Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top Zenith Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76046 Answers

matt martin
matt martin

Level 3 Expert

1255 Answers

Jaime Hernandez

Level 3 Expert

2337 Answers

Are you a Zenith Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...