Siemens M35 Series Service Manual page 67

Repair Documentation
Description of procedure:
D I A G N O S I S
R E P A I R B Y C O M P O N E N T C H A N G E
R E P A I R B Y S W - B O O T I N G
T E S T
List of needed material
C O M P O N E N T S
J I G S A N D T O O L S
Use the diode test function of a multimeter to check the status of the
diode.
The typical voltage drop on the diode is 1.7V when testing the diode
function with the multimeter.
Use soldering iron to remove defective diode
Avoid excessive heat!
Watch surrounding components!
Resolder new diode afterwards.
Not possible!
Retest handset after repair.
LED keyboard X35
Part-Number: L36840-L2031-D670
Hot Air Blower
Soldering Iron