L2E Repair Document
TCL
Communication Ltd.
Rev.
5085Y/D/A/B/J/Q/I/N/H
L2E Repair Document
Page
1.3
55/58
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7.2.15 Finger print function failure
N
Reassemble Main &
Sub board Furnished
FPC
Check whether the
connection between main
PCBA and Sub PCBA (Main
& Sub board Furnished FPC)
is good
Reweld or replace
J0102 or J0704
N
Y
N
Replace sub PCBA
Check whether sub PCBA
is normal
Check whether J0102 or J0704
is normal
Y
Y
Replace PCBA
Y
Check whether U0501 is
normal
N
Reweld or replace
U0501
Y
Check whether Main & Sub
board Furnished FPC is
normal
N
Replace Main & Sub
board Furnished FPC
Check whether J0105 is
normal
Reweld or replace
J0105
Y
N
N
R e a s s e m b l e f inger
print FPC
Check whether the
connection between finger
print FPC and Sub PCBA is
good
Y
Check whether finger print
FPC is normal
（
interchange
method
）
N
Replace
Front Casing
Underfilling ASM
Y
