Light (Keypad And Backlight) - Siemens A35 Repair Documentation

8.2 Light (keypad and backlight)

All LED´s (Keypad and Backlight) are connected to BATT+. The LED´s are switched
on by the EGOLD+
(miscellaneous N7)
transistor V193. The signal
the TX-Burst is active.
The Illumination:
V1.0
A35-A36-A40
controlled signal
LIGHT_OFF can be used to switch off the light during
a) Display
b) Keypad
Page 35 of 38
Company Confidential
LIGHT_ µC
via the
Notes
ICM MP CC ST
09/01