Service Repair Documentation Level 2.5e – HIT ... - Altehandys.de
Service Repair Documentation Level 2.5e – HIT ... - Altehandys.de
Service Repair Documentation Level 2.5e – HIT ... - Altehandys.de
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Company Confi<strong>de</strong>ntial<br />
Copyright 2004© Siemens AG<br />
10 Illumination<br />
a) Keyboard<br />
The LED´s will be mounted on separate MMI-PCB. The illumination of the keypad will be<br />
done via high-brightness LEDs (colour: white, type: top-shooter, driven by 7.5 mA / LED).<br />
The LEDs will be driven by one current source with a maximum current of 15 mA. The 6<br />
LEDs are divi<strong>de</strong>d in two groups with 3 LEDs in serial.<br />
b) Display<br />
The 3 serial LEDs for the display are supplied by one constant current sources, to ensure<br />
the same brigthness and colour of the white backlight.<br />
<strong>Service</strong> <strong>Repair</strong> <strong>Documentation</strong><br />
<strong>Level</strong> <strong>2.5e</strong> <strong>–</strong> <strong>HIT</strong> <strong>–</strong> C65, CX65 and M65<br />
Page 32 of 40<br />
Release 1.0
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