Question about Samsung HCN653W 65" Rear Projection Television

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Rangs tv service mode

Vertical size very high

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If you wish to know more details surf this site for more details. Service mode entry and adjustment procedure to many brand televisions are given in detail. Search for your TV brand name by its search box at the upper right of the display window. You can get a solution. More than Nine Lakh viewers cannot be wrong.

Posted on May 06, 2013

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Posted on Jan 02, 2017

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How do I adjust the Vertical size or position?


If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Apr 23, 2016 | Zenith SY2765S TV

Tip

SERVICE MODE AND ADJUSTMENTS



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Accessing Self Diagnostic Menu
1. While LCD TV set is on standby mode, press the following
sequence on the Remote Commander key. (RM-GD020)

For more check the following link. Use the search tab on the top right corner on the page to find your product.
www.electro-medical.blogspot.com
google.com/+AjinGopakumar

on Feb 18, 2015 | Sony Kdl-32cx520 32" Full Hd Multi-system...

1 Answer

Zenith TV B27A24Z, Vert Size Adjust


To do this adjustment, you should enter the service mode option. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given.

Feb 27, 2014 | Zenith Televison & Video

1 Answer

My daewoo 27" t.v.'s vertical


get the service mode of your tv..you can adjust its vertical size.

Feb 21, 2011 | Daewoo DTQ-29S1FCN 27" TV

1 Answer

I have a 55 in Sony Grand Wega LCD TV that has some strange lines that look like cobwebs. They seem to be floating behind screen. What could it be? The TV is 6 years old


hello,
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A single horizontal line means that you have lost vertical deflection. High voltage is most likely fine since there is something on the screen.

This could be due to:

Dirty service switch contacts. There is often a small switch located inside on the main board or perhaps accessible from the back. This is used during setup to set the color background levels.
may be a jumper plug or other means of selecting service mode - not an actual switch.

When moved to the 'service' position, it kills vertical deflection and video to the Tube. If the switch somehow changed position or got dirty or corroded contacts, you will have this symptom. Flip the switch back and forth a couple of times. If there is some change, then replace, clean, resolder, or even bypass it as appropriate.

Bad connection to deflection ports or other parts in vertical output circuit. Bad connections are common in TVs and monitors. Check around the pins of large components like transformers, power transistors and resistors, or connectors for hairline cracks in the solder. Reseat internal connectors. Check particularly around the connector to the deflection ports on the Tubes.

Bad vertical deflection IC or transistor. You will probably need the service manual for this and the following. However, if the vertical deflection is done with an IC, the ECG Semiconductor Master Substitution guide may have its pinout which may be enough to test it with a scope.

Other bad parts in vertical deflection circuit though there are not that many parts that would kill the deflection entirely.

Loss of power to vertical deflection circuits. Check for blown fusable resistors/fuses and bad connections.

Loss of vertical oscillator or vertical drive signals.

The most likely possibilities are in the deflection output stage or bad connections to the yoke.


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