Service manual

UX-465L/C
UX-485LU
Analog signal block 6/6
6 – 6
1
2 6
4
3
5
BDEFG
I
HCA
1
2 6
4
3
5
BDEFG
I
HCA
– +
– +
– +
R123
3K
VOLC
(3-1A)
VOLA
(3-1A)
C125
0
VOLB
(3-1A)
R115
1K
R114
15K
R113
62K
R116
160K
R117
330K
R119
470K
R120
750K
R118
1.2M
13
14 15 12
1 5 2 4
X0
X1 X2 X3 X4 X5 X6 X7
A B
C
+5V
DG
VSS VSS
C122
0.1
VSS
VDD
X
9 10 11 8 7 6 16 3
IC8
4051
W-TONE
Q101
CB
E
DG
(3-2A)
DG
D106
R131
+5V
1
2
3
IC9
5
4
+5V
DG
C139
R144
DG
C158
R130
CNLIUA-1
CNLIUA-10
CNLIUA-9
(3-5A)
C204
0.1
C201
0.1
C169
0
R165
0
R181
R200
39K
DG
DG
+5VA
+5V
C171
0
C172
1
(3-4H) (3-2A) CNLIUA-3
TELIN
CML
SIGRX
SIGTX
DTMFMUTE
Q104
KRC102S
Q105
KRC102S
RXIN TXOUT TELOUT
TELOUT1
RCVOL
SIGMUTE RCVOL
Q102
C
3
8 4
IC12
R169
R170
R166
0
R199
4.7K
R184
11K
R201
100K
1
2
3
1
2
B
E
Q107
IC12
CB
E
C
C
B
B
E
E
(3-6A)
(3-3H)
CNLIUA-8
(3-2H)
SPOUT
CNSP-1 CNSP-2 (3-5A)
SPMUTE
BZOUT2 BZOUT1
SP-
SP+
(1-1F) (1-1F)
(3-4A)
(3-3H)
+5V
+5V
+5V
+5VA
C190
C220
DG
DG
DG
DG
DG
DG
C192
0
C191
C5
C219
R182
0
C189
0
C210
1
C209
1
R218
R187
R185
R219
Q106
KRC102S
CB
E
R164
R186
0
R183
0
C194
1
C124
0.1
R124
15K
R122
R121
100K
C116
220P
R111
150K
C115
1
C140
0.01
R132
100K
R133
15K
C123
4700P
R134
20K
R135
IC5
NJM2113
C2
47/25
4
8
5
6
7
1
2 3
DG
DG DG
DGDG
D102
1SS355
D105
02DZ5.1Y
D101
1SS355
+24VA
DG
DG
DG
DGDGDG
C193
C170
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
R167
0
(3-6A)
N.M.
N.M.
DG
D107
N.M.
N.M.
C157
DG
CNMIC-2
CNMIC-3
CNMIC-1
DG
R143
R163
DG
C4
R162