Led Keypad Backlight And Led Keypad Magic Ring - Siemens CF62 Service Repair Documentation

Company Confidential
Copyright 2005© Siemens AG

6 LED Keypad Backlight and LED Keypad Magic Ring

Fault Symptoms
Customer:
Keypad illumination does not work
not okay
Exchange
Keypad LED
LED Keypad Backlight
Use soldering iron to remove defective component. Avoid excessive heat! Watch surrounding components!
Resolder new component afterwards.
E-commerce order number:
Soldering temperature:
IRIS Diagnose Code:
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:
Soldering temperature:
IRIS Diagnose Code:
Service Repair Documentation Level 2.5 - CF62, CF62R, CF63
LED's Problems
Watch for oxidation and
damaged pads of the LED'S
Check the status of the
LED's visually
Use the diode test
function of a multimeter
to check the status of
not okay
the diode. The typical
voltage drop on the
diode is 1.7 V when
testing the diode
function with the
multimeter.
Attention: Remove Metal Dome Sheet before!!!
CF62/CF63: L36840-L2095-D670
240 - 255°C
36000 Keys/Illumination
CF62/CF63: L36840-L2055-D670
240 - 255°C
36000 Keys/Illumination
Page
GRT:
Tbd.
not okay
okay
okay
okay
CF62R: L36840-L2083-D670
CF62R: L36197-F5005-F782
of
9 10
s Com
SCRAP
has to be
send separately to
WSC
- check for dry joints
Level 2 Repair