Question about Zenith B25A76R 25" TV

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Zenith TV modelB25A74R picture rolls

Picture rolls, then stops for a few seconds and the rolling begins again.

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  • dwill918 May 10, 2008

    25" Direct View Traditional Console Television B25A74R

    Limited TV repairmen in area. Floor model and cost to pickup and diagnose is $100 plus parts. OR is it time to junk the set?

    Original manual misplaced long ago. But have downloaded service and paid for specs download. This is as useful as the information is going to get.

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  • 304 Answers

Can you please tell us what model maker of your TV unit..

Posted on May 07, 2008

  • Elizabeth Krijt
    Elizabeth Krijt May 07, 2008

    Have you done any initial check or test on the unit.. & please kindly provide us some other useful info. regarding on the problem.

    anyway try to look for bad stk's on convergence
    module on the TV..

    Post back, if still need assistance.


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1 Answer

Sometimes the picture rolls for 30 minutes to one hour and then the picture is perfect. A few times when we turn it on, the picture is okay and then after a few hours, the rolling picture starts. Where is...


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hit your TV lightly on left side or right side or on top & then observe ..........you will get normal picture or it comes & again it goes....if it is happening like that then following is the situation..........after 4 or 5 yrs in some TVs on main board (also on circuit board that is fixed to CRT TUBE ) at some soldering joints crack develops....then due to loose contact picture becomes small in size or disappears or rolls ( in your case )...........when we hit that lightly then those loose contacts joins temporarly & again picture appears for some time............so solution is ......TV main board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting TV lightly if there is no response then main board has to be checked completely........in your case iam sure it is loose connection problem.........joints should be re - soldered ...100% it works again................this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good TV service engineer

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1 Answer

I have " Sony FD Trinitron WEGA KV-36HS420 36" TV


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1 Answer

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you can also try to unplug and plug it back in.

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1 Answer

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Look for dry joints very carefully in the vertical circuitry, IC and the power supply

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1 Answer

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Solder any / bad connects horiz,vert and power supply then
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Please rate this solution.........................

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