Question about LG Studioworks 563N 15" CRT Monitor

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Horizontal size is not working

Dear sir,
my 15'' monitor is working but horizontal size is not working, the two sides are bulged in, the other functions are working properly, what can i do? can you send me a copy of circuit diagram for this product?

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Re: horizontal size is not working

1.In horiztal section R778 - 1Ohmsor 2Ohms one watt,R749 - 2.2k,R753 - 2.2kcheck it.
2.check Q716 - C3198,Q714- C3198 Problem Replace all thease componants.
3.and also check Damper diode DMV32 (or)DMV1500, it's related componants
4. dry points in horizontal section

Posted on Oct 06, 2008

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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.

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1 Answer

My monitor does not display full screen though all the settings are OK. This problem has just emerged recently. The vertical size is fine and the horizontal size is the affected size.REMEMBER ALL THE...

The Horizontal power supply voltage is low. This is provided as a "sawtooth" waveform via the CRT flyback transformer.

Some flybacks offer a voltage adjustment via a potentiometer ("pot") on the side of the unit. I do not have a schematic for your monitor, so I cannot tell you for certain if this is an option. This adjustment should only be made by a trained technician. If you are not familiar with high voltage electronics, DO NOT OPEN THE SET!

I recommend replacing the monitor. When they age, you can only buy some time before it goes for good, and prices are so low now that repairs are not usually cost effective.

Feb 01, 2011 | Daewoo Business 526X (White) 15 in.CRT...

1 Answer

Horizontal screen size is too large all drivers are installed on winxp

This is Monitor need an monitor service engineer.the problem is in Horizontal Deflection yoke/Horizontal output transistor section.

Nov 14, 2010 | LG Studioworks 563N 15" CRT Monitor

1 Answer

Shrinking of the display

The DB15 VGA (Video Graphics Array) connector contains however 15 pins in three rows of 5 pins each. These five pins carry the color and synchronisation signals, also a digital I2C interface for two-way communication between the video controller and monitor. The common 15-pin VGA connector found on most video cards, computer monitors, high definition televisions which support VGA connections. The following schematic diagram and table shows respectively connector and pin assignment of DB15 VGA.



Red Video
Green Video
Blue Video
not connected
Signal Ground
Red Ground
Green Ground
Blue Ground
5 VDC supply (fused)
Signal Ground
not connected
DDC/I2C data
Horizontal Sycn
Vertical Sycn
DDC/I2C Clock

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this is not the electronic problem, this monitor is made to support such (800x600) resolution.

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Make sure the video resolution is set to 1024x768.
Right click on a blank area on your desktop. click properties>settings.

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Problem with Studioworks 563 monitor

LG Studioworks 563N Monitor horizontal width is exceeding out of screen and not able to adjust it along with pincushion through menu. IRF S630A Transistor replaced, no effect. Pl. help.

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hey bro.


you try to re solder the vertical section and the color section.

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Horizontal lines are appearing and moving acrosss the screen of my View Sonic E50C Monitor...

What is wrong with your monitor is that the Horizontal section is going faulty, the lines you are seeing are the Horizontal Retrace lines, usually invisable in a working unit. It is often a faulty capacitor(s) OR a Diode breaking down.. in the area of the Flyback Transformer. Probably time for a new one unless ya can fix it yaself.

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1 Answer

56v-Screen shrinked horizontly

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

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