Read Sony XR-2800 / XR-2803 Service Manual online
– 17 –
• IC Block Diagrams – MAIN Board –
IC301
IC301
CXA2509AQ-T4
IC361
MM1322XFBE
IC401
LC75373ED
+
–
–
+
–
+
–
+
–
+ –
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
21
22
23
26
27
28
29
30
31
32
33
34
37
38
39
40
24
25
PBFB1
PBRIN1
PBREF1
PBFIN1
35
36
PBGND
VCT
PBFIN2
PBREF2
PBRIN2
PBFB2
PBEQ1
PBOUT1
VCC
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
NC
NC
G2FB
G1FB
MSTC
DGND
MSOUT
NC
NC
INSW
TAPESW
MSMODE
DRSW
MSSW
NC
NC
LINEOUT2
DIREF
AUXIN2
TAPEIN2
PBEQ2
PBOUT2
GND
F2
120
µ
/70
µ
X1
X1
VCT
+
F1
120
µ
/70
µ
24dB
F3
LPF
VCC
DETECT
MS ON/
OFF
FWD/RVS
TAPE EQ
TAPE/AUX
NR BIAS
24dB
MS
MODE
T2
T1
1
2
3
4
5
6
7
8 OUT2
VS
OUT1
GND
IN1
VCC
IN2
GND
CONTROL CIRCUIT
+
–
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
–
+
–
+
–
DECODER
LATCH
SHIFT
REGISTER
CONTROL
–
+
+
–
–
1
2
3 4
5
6 7 8
9 10
20
19
18
17
16
15
14
13
12
11
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
43
44
LSELO
L4
L3
L3
L2
L1
VDD
R1
R2
R3
R4
R4
RSELO
RVRIN
RCOM
RT1
RT2
RT3
RTOUT
RSIN
RS1
RS2
RS3
RSOUT
RFIN
RFOUT
RROUT
VSS
CL
DI
CE
VREF
LROUT
LFOUT
LFIN
LSOUT
LS3
LS2
LS1
LSIN
LTOUT
LT3
LT2
LT1
LCOM
LVRIN
SECTION 6
DIAGRAMS
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