Service manual

UX-B700U
FO-B1600U
A A
B B
C C
D D
E E
4 4 3 3 2 2 1 1
DG
DG DG
DG
DG
+24VA
Vref B Vref A
+24V
DG
DG
+24V+24VA
DG
DG
Vref A
HSDG
+24V
DG
CNLIUA-11
CNLIUA-2
CNLIUA-9
CNLIUA-10
CNLIUA-1
CNLIUA-12
7
11 12
8 9
10
6 4 2
CML
5
Ci
3 1
(1608 & 2125)
+24V
DG
HS-
RHS-
R9
R109
0
D101
PC2B PC817X4
43
R110
PC1B PC814X
CML1B
A5X24E908
C114
0.1u(2125)
PH1
GP7S58VS
+
C13
100u/50V
+
C10
22u/50V
R13
R12 100(1/2W)
C103
1000p
REG1
N.M
Vout
1
GND
2
Vin
3
R10
C105
1000p
D2
1SS133
PC3B
N.M
43
Q101
RT1N436C
B
C
E
+
C7
+C8
N.M
411
ZD9
HZ6A3 2k(1/2W)
HA17324A
IC101E
1.2k(1W)
+24V DG MICMUTE TELIN TELMUTE RXIN TXOUT CI HS- RHS- TELOUT CML
CNLIUA
TEL/LIU PWB circuit 3/3
6 – 12