Siemens C25 Service Manual page 58

8.4 Repair Documentation
8.4.1 Description of procedure:
8.4.1.1 Diagnosis
8.4.1.2 Repair by component change
8.4.1.3 Repair by SW-Booting
8.4.1.4 Test
8.4.2 List of needed material
8.4.2.1 Components
8.4.2.2 Jigs and Tools
V1.2
The capacitors are used to buffer the supply voltage of the display
controller. Especially C308 has occasionally been found defective.
Check the status of the capacitors by measuring ist capacitance with a
appropriate measurement device. The capacitance must be in the
220nF range. Defective caps often have a lower capacitance around
100nF.
Use hot air blower or soldering iron to remove defective capacitor.
Avoid excessive heat!
Watch surrounding components!
Resolder new capacitor afterwards.
Not possible!
Retest handset after repair.
Display Capacitor C25(88)
Part-Number:
L36375-F3224-K
Hot Air Blower
Soldering Iron
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