Table of Contents
Advertisement
Keymat mechanical faulty
Check the bottom of the keymat if no pins are broken or mechanical damaged
Board / Dome-sheet soiled
If there are only one or two keys without function, check and clean the board and dome-sheet if soiled
Board failure
If there are four keys without function and all of them are on them same ROW or COL line, check the connections
between the keys and ground
If any line is interrupted between the Keys, swap the handset because PCB is faulty
Insert SIM CARD
check solderings and contacts of
X100, SIM card reader
oK
check pin 4 (SIMDATA), pin 3
(SIMCLK), pin 2 (SIMRST), pin
1/5 (VSIM) of SIM-CARD reader
version 1.0 / 05.11.1999
CONFIDENTIAL
Insert SIM card
the phone doesn't register the SIM card
resolder X100 or
not oK
change if any
contact is bended
change N100
not oK
CCONT
Service & Analysis Center Europe
Training Team
swap the phone if
any wire to the SIM
not oK
card reader has
teared off
change V112 if SIM
-DATA, -CLOCK,
-RESET or VSIM is
not oK
short circuited to
ground
not oK
check also
R115,R116,C137,C
138,C139,C140,
C141
Page 25 of 37
Hide quick links:
Advertisement
Table of Contents
