Question about Standard (CRT) Televisions

1 Answer

Zenith sentry 2 tv

It is either model z27x22, x74 or x76

the top and bottom lines of the picture are outside the viewing screen. How do you fix?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 20 Answers

Will probably have to take into servise center. will need to enter service menue and need service diagram.

Posted on Mar 17, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The picture is oversized and the printing as in the stock ticker or in the sports scores can only be seen a little bit on the bottom. Can't find anyway to resize the picture.


Zenith sets, like most others now, are adjusted electronically through a service menu. You'll need your original remote control (or a Zenith-brand universal replacement with a MENU key) to access the menu. Press and hold the MENU button until the channel number and time display goes away, then press 9, 8 , 7, 6, ENTER. This puts you into service mode.

In service mode, CHANNEL UP and CHANNEL DOWN move through the different settings, and VOLUME UP and VOLUME DOWN change the values. Make sure you write down the original value of anything before you change it so you can put it back if necessary. One of the reasons the manufacturers hide the service menu is because the set can be damaged by incorrect settings to some of the parameters.

On some models, you can't get to all the parameters unless you change one called F MODE from 00 to 01. You might need to do this on yours.

The list of parameters varies by model and features. I haven't worked on a Zenith in a long time so I don't remember exactly what yours says, but you want to find two settings for V SIZE (vertical size) and V POS (vertical position). Adjust the size first by lowering the value until the top and bottom of the screen are black. Then adjust the position so the picture is centered (black strips close to equal size). Finally, increase the size until the picture fills the screen again. It's normal to adjust for a little overscan, meaning you push the top and bottom a little bit out of view. If you stop too soon, on some channels you might see flashing lines at the top of the picture.

When you're finished adjusting, turn the TV off to exit service mode. If you needed to change the F MODE setting, put it back to 00 first. Your picture should be properly sized after all this.

Mar 19, 2011 | Zenith SY2772DT TV

1 Answer

Zenith sentry 2


picture horizontal in the tv

Oct 12, 2008 | Zenith H25F36DT 25" TV

1 Answer

Zenith console tv model sentry 2 27 inch


Resolder the vertical deflection section. Change pump up capacitor if it has one...100uf is a typical value. Is the vertical output some flavor of LA783x ?? May need to replace. A model # would help.

Nov 04, 2007 | Standard (CRT) Televisions

1 Answer

Blue screen


try to solder any loose connection

Aug 15, 2007 | Zenith C27A24T 27" TV

2 Answers

Tv help!


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.

Aug 13, 2007 | Zenith A27A11D 27" TV

1 Answer

Zenith Model SR3238RK horizontal lines


There must be a capacitor which would be brust or leaked.So check it in th horizental section.And power supply section.Find that one and replace it. Good luck

Aug 12, 2007 | Zenith C27A24T 27" TV

1 Answer

Picture Shortens, Converges, eventually the set shuts off - $50 for Correct Solution


Open the TV amd turn it on in a position you can see the picture, possibly through a mirror. Now gently tap all of the metal heat sinks on the circuit board until you find the one that is sensitive it will have a small chip mounted vertically on it, with probably like 7-10 pins. The number on the chip will most likely be an "LA****" number. Now turn the circuit board (UNPLUG FIRST) over and resolder the pins. This is your problem 99% of the time. Be very careful there is High Voltage inside this TV.

Apr 26, 2007 | Zenith IQB36B42W TV

1 Answer

Picture is cut off on top and bottom


Thats is not going to fix your problem. You have a bad vertical output IC and or a bad capacitor in the vertical drive or output circuit. Good Luck

Mar 31, 2007 | Zenith C27A24T 27" TV

Not finding what you are looking for?
Standard (CRT) Televisions Logo

Related Topics:

97 people viewed this question

Ask a Question

Usually answered in minutes!

Top Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

68323 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...