Medion MD 30517 Instructions d'exploitation télécharger pdf (Page 20)

Guarantee

The receipt serves as proof of first purchase and should be kept in a safe place. It is required should

you need to make use of the guarantee.

If the product is passed onto another user, then he shall be entitled to guarantee services for the

remaining period of the guarantee. The receipt of purchase as well as this declaration should be

passed onto the new user.

We guarantee that this equipment is in perfect working order and from a technical point of view it

complies with the descriptions in the enclosed documentation. Upon production of the receipt, the

remaining period of guarantee shall pass on from the original parts to the respective replacement

parts. If you hand in this equipment to make use of the guarantee, you must remove all programs,

data and removable storage media. Products which are sent without accessories will be replaced

without accessories. The warranty obligation does not apply in the case of the problem being caused

by an accident, a catastrophe, vandalism, misuse, incorrect use, ignoring the safety and mainte-

nance regulations, changes by software, viruses or another piece of equipment or accessories or by

other modifications not approved by ourselves. This limited guarantee declaration replaces all other

guarantees of express or implied nature. This includes the guarantee of saleability or the suitability

for a certain purpose but is not limited to this. In some countries the exclusion of implied guarantees

is not permissible upon principle. In this case the validity of all express and implied guarantees is

limited to the guarantee period. Once this period has expired, all guarantees become invalid. In

some countries limiting the period of validity for implied guarantees is not permitted, so that the

above limitation does not come into force. If you have any questions with regard to these guarantee

conditions, please contact us.

Pixel Defects on TFT-Displays

Active matrix TFTs with a resolution of 1280 x 1024 pixel (SXGA), which are in turn composed of

three sub-pixels each (red, green, blue), contain about 2.4 million addressable transistors. Because

of this very high number of transistors and their extremely complex production process occasionally

defective or incorrectly addressed pixels or sub-pixels may occur.

There have been several attempts in the past to define the acceptable number of defective pixels.

But this can be difficult and varies widely between different manufacturers.

MEDION, therefore, adheres to the clear and strict requirements of ISO 13406-2, class II, for the

warranty handling of all TFT display products. These requirements are summarized below.

Within ISO-standard 13406-2 the general requirements regarding

pixel defects are defined. Pixel defects are classified into three failure

types and four failure classes. Each individual pixel is made up of

three sub-pixels in the primary colors (red, green, blue).

Rows

Blue

Green

Red

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Medion MD 30517 Instructions d'exploitation Page 20