Siemens CF62 - LED Keypad Backlight and LED Keypad Magic Ring

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Service Repair Documentation Level 2.5 - CF62, CF62R, CF63
6 LED Keypad Backlight and LED Keypad Magic Ring
Fault Symptoms
Customer: GRT:
Keypad illumination does not work Tbd.
LED’s Problems
Check the status of the
LED's visually
okay
not okay
Level 2 Repair
Exchange
Keypad LED
SCRAP has to be
send separately to
WSC
- check for dry joints
Watch for oxidation and
damaged pads of the LED’S
not okay
Use the diode test
function of a multimeter
to check the status of
the diode. The typical
voltage drop on the
diode is 1.7 V when
testing the diode
function with the
multimeter.
okay
okay
not okay
LED Keypad Backlight
Use soldering iron to remove defective component. Avoid excessive heat! Watch surrounding components!
Resolder new component afterwards. Attention: Remove Metal Dome Sheet before!!!
E-commerce order number: CF62/CF63: L36840-L2095-D670 CF62R: L36840-L2083-D670
Soldering temperature: 240 - 255°C
IRIS Diagnose Code: 36000 Keys/Illumination
LED Keypad Magic Ring
Use soldering iron to remove defective component. Avoid excessive heat! Watch surrounding components!
Resolder new component afterwards.
E-commerce order number: CF62/CF63: L36840-L2055-D670 CF62R: L36197-F5005-F782
Soldering temperature: 240 - 255°C
IRIS Diagnose Code: 36000 Keys/Illumination