Service manual

UX-510UA
FO-1470U
[2] TEL/LIU PWB circuit 1/2
6 – 9
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1 2
6
4
3
5
–
+
+5VA
+5VA
–
+
+5VA
+24VA
+5V
VREF
+5VA
–
+
+5V
–
+
VREF
VREF
TLJ-2
CNLNJ-2
L9
R-5C
JP17JP12
JP11
CNLNJ-3
JP10
JP8
CNLNJ-4
VA3
ERZV5D471
VA2
ERZV5D471
ARG
CNLNJ-5
JP4
TLJ-1
JP3
L1
R-5C
JP1
JP16
L8
N.M.
L2A
N.M.
N.M.
C
M
B
CML1
C8
0.82
R111
22K
R5
22K(1/2W)
D2
1SS133
ZD6
HZ27C
PC4
TLP521
C15
R119
C14
N.M.
2 1
4 3
T1
I2164
C7 C111
N.M.
N.M.
~ ~
+
–
REC1
PC3
PC2
R104
ZD3
R103
C3
R4
R2
PC1
R1
D
G
S
Q1
R6
N.M.
ZD4
HZ2C1
ZD5
HZ2C1
JP6
C5
22/50
JP7
DG
+5V
C6
22/50
R118
100
R116
620
JP5
C4
4.7/50
C108
0.039
C107
N.M.
R114
300
7
6 5
R121
1K
DG
C114
33P
R122
86.6K
IC101
2904
R117
4.7K
TXOUT
CNLIUA-8
R107
C104
R110
C105
R109
N.M.
C106
1
C113
1
R112
20K
R120
20K
R115
47K
C112
820P
C109
33P
R113
15K
2 3
1
IC101
2904
RXIN
CNLIUA-9
R108
3.3K
DG
8
4
DG
C118
0.1
C110
0.1
8
4
DG
IC102
2904
IC101
2904
R139
20K
R138
20K
R140
0
C10
10/50
DGDG
CNHJ-4 CNHJ-1
TX+ TX
–
C127
2200P
CNHJ-2 CNHJ-3
RX+
RX
–
R130
1.5K
R128
1K
C9
22/50
DG
C117
2200P
DG
C123
0.1
R134
1K
ZD9 ZD8
N.M.
C124
0.01
R135
10K
C125
220P
R136
3.3K
C126
1000P
C12
C119
1000P
DGDGDG
N.M.
IC102
2904
1
2 3
R133
0
TELOUT
CNLIUA-2
D4 D3
N.M.
DG
L5 R-5C
C13
22/50
R127
150
R126
N.M.
DG
DG
R124
3.3K
DG
7
6 5
IC102
2904
C115 220P
R125 220K
C11
N.M.
TELIN
CNLIUA-3
R132
39K
R131
8.2K
TELMUTE
CNLIUA-4
R123
0
DG
Q104
DTC143ZK
JP2
AR2
ZD2
DG
DG
Q105
2SC2412K
JP9
N.M.
N.M.
N.M.
N.M.
JUMPER
R8
R9
R7
PC5
ZD10 ZD11
N.M.
N.M.
N.M.
L3
R-5C
L2B
R-5C
N.M.
AR1
RA-391P
JUMPER
ZD1
JUMPER
VA1
D101
DA204K
ZD7
MTZJ5R1B
C122
R141
0
N.M.
R142C128
DG
C129
R143
L6
N.M.
R137
0
L7 R-5C
JP14
N.M.
JP15
N.M.
JP13
N.M.
L4
R-5C
R129
C116
N.M.
NOTE: THESE MARKS ARE ALL SAFETY - CRITICAL PARTS.