Medion LIFE X15544 (MD 30755) Handleiding (78 Pagina's)

Handleiding

EN

67

17.1. Do you need more help?

If the suggestions in the previous sections did not solve your problem, please contact us. To make it

easier for us to help you, please have the following information to hand:

• What external devices are connected?

• What messages appear on the screen?

• When operating the device, at which step did the problem occur?

• If you have a PC connected to the device:

– How is your computer configured?

– What software were you using when the problem occurred?

• What steps have you already taken to try and rectify the problem?

• Please provide us with your customer number if you have one.

17.2. Smart TV pixel faults

Despite the state-of-the-art production methods, in rare

cases there may be individual or multiple pixel drop-outs

(dead pixels) due to the highly complex technology.

For active matrix TFTs with a resolution of 3840 x 2160

pixels, which are each made up of four sub-pixels (red,

green, blue, white), there are a total of approx. 33.2 mil-

lion control elements in use. Occasionally pixels or indi-

vidual sub-pixels can fail or become incorrectly controlled

because of this very high number of transistors and the ex-

tremely complex manufacturing process used in this con-

text.

Pixel defect class

Defect type 1

Continuously

lit pixel

Defect type 2

Continuously

black pixel

Fehlertyp3

Defective sub-pixel

lit black

00000

I112

1

0

1

3

5

II 2 2 5

5-n*

0

2xn*

10

III 5 15 50

50-n*

0

2xn*

100

IV 50 150 500

500-n*

0

2xn*

1000

n*=1.5

The permitted number of defects for every type named above in each class of pixel defect refers to

one million pixels and must be converted accordingly to match the physical resolution of the dis-

play.

Your device complies with the European ISO 9241-307 Class II standard (pixel defect class). Pixel de-

fects up to the specified maximum number are not covered by the warranty.

5 Pixel

blue

5 Pixel

Rows

Sub-Pixel

Pixel

green

red

white

MD30755 EN Aldi UK 30034383 Content RC.indd 67MD30755 EN Aldi UK 30034383 Content RC.indd 67 22.03.2022 11:14:1722.03.2022 11:14:17

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