
L2E Repair Document
TCL
Communication Ltd.
Rev.
5085Y/D/A/B/J/Q/I/N/H
L2E Repair Document
Page
1.3
45/58
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
7.2.4 Voice transmitting failure
Y
N
C h e c k w h e t h e r s u b
PCBA is good
Replace sub PCBA
N
C h e c k w h e t h e r m a i n
mic M0102 is normal
Y
R e w e l d o r r e p l a c e
M0102
N
R e w e l d o r r e p l a c e
J0102 or J0704
Check whether J0102 or
J0704 is normal
Y
Y
N
Reassemble Main & Sub
board Furnished FPC
Check whether the
connection between sub
PCBA and main PCBA is
good
Y
Replace Main PCBA
C h e c k w h e t h e r U 0 5 01 i s
normal
N
Reweld or replace
U0501
N
R e p l a c e Main & Sub
board Furnished FPC
C h e c k w h e t h e r Main &
Sub board Furnished FPC
is normal
Y