Like most electronic gadgets, there are many parts which together form the final design of a computer LCD monitor. Some parts of the monitor are small that you cannot handle them with your fingers. You will need special instruments to work with them.

One of the most important and the most vulnerable parts of an electric device is the electrolytic capacitor. These capacitors contain the electrolyte, and these can be seen in many circuit boards. In an lcd monitor tv, electrolytes are mounted on an internal power supply board. If you have a defective capacitor which happens more often than not, you will see horizontal lines on your screen. LCD monitor repairs are most of the time related to faulty capacitors.

The LCD screen uses CCFL backlight bulb for illuminating the screen. The other sources of backlight in an LCD screen are LED and EL. The LED technology was in use since 1962 but most modern LCD screens use CCFL backlight bulbs. These CCFL bulbs have low power consumption and low heat generation, and can last up to 5,000 hours. If you have a problem with your backlight bulb, your screen will look dim and might eventually become totally dark. Replacing a backlight bulb is not an expensive affair.

The Video Graphics Array connector is a 3 row 15 pin DE-15 connector. These are found on all new LCD monitors and they help carry the RBGHV video signals with the help of cables. Digital Video Interface maximizes the quality of flat panel pc LCD monitors and modern video graphics cards. There are three types of DVI connections, meaning digital, analog and integrated. DVI cables are used to send information using a transition minimized differential signaling. A way to differentiate between the three different types of DVI connectors is using DVI-D single link – one set of eight pins, a set of four pins with four contacts. DVI-I single link has two sets of nine pins and four contacts, DVI-I dual link has three rows of eight pins and four contacts.