Question about SAMTRON 55V 15" CRT Monitor

1 Answer

56v-Screen shrinked horizontly

Hello experts, I have 56v monitor. Recently my horizontal size decreased to about 40%.I tried to increase the size using the panel but it already shows 100%.I also tried zooming in but that didn't work too.Screen seemed to be shrinked.Rest of the screen is black. please help me.

Posted by on

1 Answer

Re: 56v-Screen shrinked horizontly

You need to service your monitor. Give it to an authorized service center.

Posted on Dec 28, 2006

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Explain how the monitor buttons work

Monitor Icon Description of icon function moncont.gif Power - Turns the monitor on or off.
Brightness - Using this button or wheel the user can increase and decrease the brightness on the screen.
Contrast - Using this button or wheel can increase and decrease the amount of contrast on the screen.
Horizontal Size - Allows for the picture on the screen to be stretched to the horizontal edge of the monitor.
Vertical Size - Allows the picture on the screen to be stretched to the vertical edges of the monitor.
Horizontal Position - Allows the picture to move moved horizontally, once in the center the user can then use the Horizontal size to stretch it to have an equal amount of black border on each side.
Vertical Position - Like the Horizontal Position, using this button or wheel the user can move the picture up or down to center the picture more appropriately.
Full Screen - Sets monitor to full screen.
Degauss - This button will degauss the CRT, restoring possible color impurities. After this button has been pressed the degaussing circuit will be activated and then deactivated after a few seconds. Pressing and holding this button for a few seconds may cause your computer monitor to reset all data.
Corner and Trapezoid Correction - Using this button or wheel the user can either round the edges of the picture or move the picture inward like an hour glass or outwards.
Vertical Linearity - Sets the width of the vertical lines.
Moire - Removes or reduces the Moire effect, if any.
OSD Controls - If the monitor contains OSD controls, allows for the OSD menus to be adjusted.
Power Management - Allows the user to define the power management settings through the monitor itself and not the software.
Monitor Status - Displays the current monitor settings such as refresh rate and other settings.
Language - Sets the language on the monitor.

Aug 16, 2014 | Computer Monitors

1 Answer

Unable to adjust the settings for brightness and contrast .

To adjust the display settings:

1. Press the flywheel control. The main menu appears.

The current display settings appear across the top of the main menu.

2. Rotate the flywheel to highlight an option. The name of the
highlighted option appears in the center of the menu.

3. Press the flywheel control to select the highlighted option, then
rotate the flywheel to adjust it.

Some options can only be enabled or disabled. There are also some
options that contain additional menus.

4. Repeat Steps 2 and 3 until you have made all your changes.

5. Rotate the flywheel control until Exit is highlighted, then press
it to exit the OSD control system.


Contrast increases or decreases display image contrast.

Brightness increases or decreases display image brightness.

Horizontal Size increases or decreases the width of the display image.

Horizontal Position moves display image to the left or right side of
the screen.

Vertical Size increases or decreases the height of the display image.

Vertical Position moves display image to the top or bottom of the

Pincushion curves the sides of the display image inward or outward.

Trapezoid increases or decreases the trapezoid distortion of the
display image.

Degauss removes magnetic discoloration from the display image.

Recall returns most options to the original factory default settings
if the monitor is currently using a preset video mode. (See the “Video
modes” section in this guide for information about the factory preset

Advanced Option opens the Advanced Option menu. Color opens the Color
Manager menu.

Language changes the display language for the OSD control system.

User displays information about the monitor’s preset modes.

OSD Manager moves the OSD control window on the screen.

Exit closes OSD control system.

Jun 21, 2010 | Gateway EV 910 19" CRT Monitor

1 Answer

Black at left and right of monitor

Since this is a CRT monitor, it doesn't have a native resolution like LCD monitors. You need to adjust the veritcal and horizontal sizes to fit the monitor. On the front of the monitor there are some menu buttons. You need to open the on-screen menu, then navigate to the Horizontal Size and Position menu, use the plus and minus buttons to grow and shrink the image. If it's not centered, use the Horizontal Position menu to move it around. Use this same system for the Vertical menu and you can get your image to fit your screen. By the way, you should have your operating system running with a white (or light colored screen) up when you do this so you can see all the edges of your desktop. The buttons are tricky, but they kinda make sense. Good Luck!

May 14, 2009 | Samsung SyncMaster 753S 17" CRT Monitor

1 Answer

Monitor width is out of screen

Check for shorted transistor, shorted diode, leaking/dried capacitor it could be ceramic or electrolytic. Look for some shunting diode or capacitor that is connected about horizontal size/width ciircuit. Leaking, shorted or open can make horizontal size shrink or expand.

Apr 11, 2009 | Compaq Computer Monitors

3 Answers



Aug 14, 2008 | LG Studioworks 700S 17" CRT Monitor

1 Answer

Problem with H-Size

you know,in the main board of a monitor you can find a trimmer resistor in horizontal section try to rotate it while the power is on so that you cn see the effect/

Oct 06, 2007 | SAMTRON 55V 15" CRT Monitor

Not finding what you are looking for?
SAMTRON 55V 15" CRT Monitor Logo

Related Topics:

209 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samtron Computer Monitors Experts

William Miller
William Miller

Level 3 Expert

8795 Answers

Richard Lilja
Richard Lilja

Level 2 Expert

355 Answers

Ted Maxwell

Level 3 Expert

3515 Answers

Are you a Samtron Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides