Information and Communication Products
Communication Devices
V1.2
Page
33
of 34
ICP CD ST
D. Schnoor
8/99
10.4
Repair Documentation
10.4.1 Description of procedure:
10.4.1.1
Diagnosis
The nine LEDs are providing the illumination both for the display and
for the keyboard. Just switch on the phone without upper case and
remove the keyboard. Now visually check the function of the LEDs.
10.4.1.2
Repair by component change
Use hot air blower or soldering iron to remove defective LED.
Watch the polarity of the LED!
Avoid excessive heat!
Watch surrounding components!
Resolder new LED afterwards.
10.4.1.3
Repair by SW-Booting
Not possible!
10.4.1.4
Test
Retest handset after repair.
10.4.2 List of needed material
10.4.2.1
Components
LED C25(88)
Part-Number:
L36840-L2031-D670
10.4.2.2
Jigs and Tools
Hot Air Blower
Soldering Iron
Summary of Contents for C25
Page 67: ......
