24
XW-NAV1-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5.2 TROUBLESHOOTING
Power does not turn on.
Is the voltage of
"AT+
V
3.3U"
(MAI
N
Assy CP4002-pin 9),
"AT+
V
3.3"
(MAI
N
Assy IC3003-pin 8)
3.3
V
?
Check IC1701 on the MAI
N
Assy and around circuits.
Check the voltage of "PO
W
ER_FAIL".
Check D513 on the PO
W
ER Assy and around circuits.
Check X3001, X3002, IC3001 on the MAI
N
Assy
and around circuits.
IC3001 (Sub u-con) on the MAI
N
Assy
is defective.
Does X3001and X3002
on the MAI
N
Assy
oscillate?
Is the voltage of
8 PI
N
and 19 PI
N
of IC2301
(Motor Drive IC)
on the MAI
N
Assy
6
V
?
N
o
Yes
Yes
Yes
N
o
N
o
Check IC1707 on the MAI
N
Assy and around circuits.
Check connection of FFC connecting
LOADER Unit and an MAI
N
Assy with.
N
o
Is the voltage of
7 PI
N
and 21 PI
N
of IC2001
(LEM Driver)
on the DISPLAY Assy
3.3
V
?
Check IC1701 on the MAI
N
Assy and around circuits.
Check D513 on the PO
W
ER Assy and around circuits.
N
o
Yes
Is FFC joining
by LOADER Unit and
LOADER Unit does not accept
TRAY CLOSE/OPE
N
.
Replace the
V
2001 (LED Display) and
IC2001 (LEM Driver) on the DISPLAY Assy.
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TEL 13942296513
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2
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
