Sony XR-1800 Service Manual page 21

QQ
3 7 63 1515 0
• IC Block Diagram – MAIN Board –
IC450 LC75372E
33
ROUT 34
35
RFIN
+
RFOUT
36
–
+
RROUT
37
–
RVREF 38
VREF
39
LVREF 40
LROUT
41
LFOUT 42
TE
L 13942296513
LFIN 43
+
LOUT 44
–
1
www
.
http://www.xiaoyu163.com
32 30
31 29
RVREF
RVREF
RVREF
+
–
RVREF
LVREF
LVREF
LVREF
LVREF
2 3 4 5
x ao
y
i
http://www.xiaoyu163.com
8
27
28 26 25 24
RVREF
+ +
– –
RVREF
SHIFT
LATCH DECODER
REGISTER
+
RVREF
–
+
LVREF
–
LVREF
Q Q
3 6 7 1 3
LVREF
6 7 8 9 10
u163
.
– 25 –
2 9 9 4 2 8
23
22 R2
21 R1
20
TEST
RVREF
19 VSS
18 NC
CL
17
DI
CONTROL 16
15 CE
LVREF
1 5 0 5 VDD 8 2 9 9 4
14
L1
13
12 L2
11
m
co
9 9
2 8 9 9