Question about Zenith A27A11D 27" TV

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Tv help! When i turn the tv on , The picture is blurred , There are white horizontal lines down the front, spaced about 1 inch apart. I found the tv! It is also missing the coax cable prong, and im not sure if that has anything to do with it! I opened it up, and nothing else looked damaged, so i thought i would write to you! thankyou for taking time to help me. Siscerely, Adam

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I have a zenith tv. I need to know how to find out if it capable of receiving digital broadcast signal.

Posted on Dec 29, 2007

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When you have the back off, look for the flyback (high voltage) transformer. This is the part that has the thick red wire protruding from its top which attaches to the top of the picture tube with a suction cup. On the flyback there are 2 controls, the bottom one is screen and the top one is focus. Turn the bottom control (screen) down (counterclockwise) until the white lines go away and the brightness looks normal. Then turn the top control (focus) until the picture is nice and sharp. If the F connector has been pulled out and the TV has RCA (red, white, yellow) jacks, use those jacks and set the TV to INPUT.

Posted on Aug 14, 2007

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Posted on Jan 02, 2017

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My 42 in phillips LCD flat seen has a black horizontal line toward the bottom how can I fix this.


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Front panel blocked or locked


RCA Entertainment Series 32" Plus Gold, GEMSTAR, xbox ready has been in the shop twice so far. Transformer replaced and 6 months later the picture suddenly had horizontal white lines that gradually spaced apart more from top to bottom and it had a gray hue and fuzzy, but I still watched it for 3 months that way. Today I turned it on and about a minute later I heard a loud crackling sound coming from the back and the picture disappeared, screen went black. Is it worth fixing again? Please contact me at ninalashua@yahoo.com

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Geforce 3 analog output: I have horizontal, blurred/faint lines scrolling from bottom to top of display, spaced 6 inches apart.


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2 Answers

RCA CRT TV thin white horizontal lines


Look for bad capacitors in the vertical deflection amp, and in the pin amp sections. This is common on most of these types of TV sets.

The caps tend to go high in ESR with age. It is best to use an ESR meter to find the bad caps. It will be a lot faster than workign out waveforms with a scope.

Wikipedia explanation about capacitor ESR:
http://en.wikipedia.org/wiki/Equivalent_series_resistance



Jerry G.

Apr 23, 2008 | Televison & Video

1 Answer

White lines equally spaced 1" apart.


This is probably caused by the small signal board. It controls and decodes the picture information before it is sent to the display panel. It can be fixed by a quailified technician and if you contact philips (this is who makes magnavox) they will tell you the closest certified technician. Hope this helps.

Mar 29, 2008 | Samsung HP-R4252 42 in. Plasma HDTV

1 Answer

After a household power blips during bad weather, we have horizontal lines ....


Unfortunately there isn't any way to repair your tv as the magnet has distorted the tube that is in the tv and with CRT becoming obsolete the repair is likely to be very costly so probably your chaepest option is to buy a new tv .

Mar 13, 2008 | Televison & Video

1 Answer

TV - Thin horizontal line picture on screen


Is this a LCD TV? IF it is it could be something on the video processing board. Let me know the model # and well will go from there. Thank you Jay

Jan 31, 2008 | Televison & Video

1 Answer

White horizontal line down middle of TV screen


caution whenever you see horizontal line please reduce brightness of your tv for safety of crt. your problem in vertical section only mostly due to loose contact in connector,print or loose components.

Sep 20, 2007 | Mitsubishi CS-35505 35" TV

1 Answer

Toshiba colorstream 27A33 TV


1.Are these lines only in the upper 1/3 rd portion of the screen?And is there a clear demarcation between this area and the lower portionb, where the image is perfect? 2.Or is thin Horizontal lines evenly spaced around an centimetre apart? If it is the first case, then there si a problem with your TVs SMPS. It is not generating the required regulated 110V required for the TVs functioning. If it is case 2, then there is a simple adjustment at the back - 'SCREEN'. This adjusts the Screen Grid Voltage, and by slightly lowering it, this problem will go away.

Sep 05, 2006 | Toshiba 27A30 27" TV

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