Question about LG Studioworks 775N 17" CRT Monitor

3 Answers

Horizontal display After about 20-30 minutes the horizontal display shrinks.

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  • Anonymous Sep 06, 2008

    I want to play xbox 360 games however when I change the PAL settings to 60hz the screen only displays in black and white. I was told the likely cause was that my monitor an LG was running on 50hz. How do I change the settings to 60hz.

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3 Answers

I think this problem appear vertical section. Pl.
cheak vertical section. dry solder vertical section.

Posted on Apr 01, 2008

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This complaint normally showing in this model...It's become normal condition on hitting on the top there is dry solder. Otherwise it's reasons may be drysolder or component fail. Go to the nearest service center for service.

Posted on Apr 01, 2008

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Check with the manufacturer information that you have the refresh rates and maximum resolution set correctly. If in doubt, go to your display properties and try something basic to test if this is the problem. A basic setting may be as low as 1024x768 at 60 Hz.

(You can access your display settings by right-click the desktop anywhere and choose properties, then settings).

Leave the monitor at that setting for a while to see if the monitor changes the picture.

If the picture changes, it may be component failure in the monitor. If not, the problem is then related to the settings from your VGA card are too high or dense causing the monitor to fail after a time. Try something higher like 1280x1024 @ 60Hz and keep going till the picture fails. Compare the best functioning resolution with the manufacturer claims about the product in the product documentation.

Be sure there are no cable bunches and the power cables are not wrapped up with the VGA cable under the desk or there are not too many cables lying about, although unlikely, this has been known to distort the picture.

Let us know if this helps.

Cheers


Gund

Posted on Mar 31, 2008

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Posted on Jan 02, 2017

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My acer monitor p244w has a clock setting on the menu.--what is this clock setting for?


The "clock" refers to the internal oscillator clock circuitry that is responsible for the generation of the video signals. It is NOT used to set the time on the monitor. It is used to make adjustments to how the display looks, usually stretching/shrinking the horizontal width.

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Display Collapse


it is repairable but for the cost of parts and labor you would be better of getting a new 22" LCD monitor
for the problem I would suspect the fly-back transformer or power supply

thanks for rating

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Can't see the part of the page with buttons to -


The monitor will have a few buttons on it, in addition to the ON/OFF button.
Press one of the other buttons to activate the OSD (On Screen Display).
From the OSD, you can "shrink" the horizontal width of the "visible" part of the screen, to pull the '_' and the 'X' controls onto the screen.

Dec 28, 2009 | Computers & Internet

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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.

Pin
Name
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

RED
GREEN
BLUE
n/c
GND
RED_RTN
GREEN_RTN
BLUE_RTN
VDC
GND
n/c
SDA
HSYNC
VSYNC
SLC

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


Aug 10, 2009 | SAMTRON 55V 15" CRT Monitor

1 Answer

INEED NO. OF OUTPUT HORIZONTAL LINE TRANSISTOR


If you mean 'flyback' or 'horizontal output transformer' and have the part number available, try one of the sources here:
Flyback links 
If you do not have the number you may have to search Viewsonic's website to loacte it.
Warning; the number of suppliers for CRT monitor parts is shrinking rapidly, my best supplier, ICM in California is long gone. 

Mar 31, 2009 | ViewSonic E70f 17" CRT Monitor

1 Answer

Horizontal out always damage in minutes


Probable defective flyback (horizontal output transformer).  

Mar 10, 2009 | ViewSonic E70f 17" CRT Monitor

1 Answer

I cant get a full screen ,


click the menu butten on your monitor and click positioning and they it should be under horizontal and vertical but if its on the sides click horizontal and use the plus and minus buttens on your monitor to adjust it.

Jan 20, 2009 | SAMTRON 55V 15" CRT Monitor

1 Answer

56v-Screen shrinked horizontly


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

Dec 15, 2006 | SAMTRON 55V 15" CRT Monitor

1 Answer

Horizontal band of Brightness


YOU HAVE LOST THE HORIZONTAL SWEEP. THIS IS A COMMON PROBLEM AND CARE MUST BE EXERCISED AS THIS IS A SECTION WITH HIGH (LETHAL!) VOLTAGES SO IF YOU ARE NOT A QUALIFIED TECHNICIAN YOU SHOULDN'T MESS WITH IT. MOST HORIZ SWEEP TROUBLES RESULT FROM FAILED HORIZONTAL OUTPUT TRANSISTOR/RELATED COMPONENTS. QUITE OFTEN SOLDER CONNECTIONS ON THIS TRANSISTOR OR THE FLYBACK TRANSISTOR ARE THE CAUSE, AND INTERNAL FAILURE OF COMPONENETS IS ALSO COMMON. A CAN OF "COMPONENT COOLER" OR OTHER SPRAY MAY BE USED TO "HIT" THE PARTS AND ALSO A HEAT GUN IN THE SAME MANNER TO ISOLAT THERMAL PROBLEMS. CAREFULL SOLDER TOUCH-UPS IN THE HORIZ. AREA ARE ALSO IN ORDER. HOPE THAT THIS HELPS. REGARDS, DAVE, SYSTEMATIC ADVANTAGE INC. 540-635-6060

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