Sony XR-C553SP Service Manual ▷ View online
– 41 –
•
IC Block Diagrams (MAIN SECTION)
IC31
BU2624F-E2
1
2
3
4
5
6
7
8
9
10
20
19
18
15
14
13
12
11
16
20BIT COUNT
IF COUNT
CONTROL
SHIFT
REGISTER
LATCH
MAIN
COUNT
PRESCALLER
I/O
CONTROL
REFERENCE
DIVIDER
PHASE
DETECT
17
XOUT
XIN
CE
CK
DA
CD
P0
P1
P3
P4
PD2
SD
IF2
IF1
P2
FMIN
AMIN
VSS
PD1
VDD
IC321
CXA2510AQ-T4
+
–
–
+
–
+
–
+
–
+ –
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
PBFB2
PBRIN2
PBREF2
PBFIN2
35
36
PBGND
VCT
PBFIN1
PBREF1
PBRIN1
PBFB1
PBEQ2
PBOUT2
VCC
TAPEIN2
AUXIN2
MSLPF
LINEOUT2
TCH2
NC
PLAY
FF
MSTC
DGND
MSOUT
NC
NRSW
INSW
TAPESW
MSMODE
DRSW
MSSW
NC
TCH1
LINEOUT1
DIREF
AUXIN1
TAPEIN1
PBEQ1
PBOUT1
GND
F2
120
µ
/
70
µ
X1
X1
VCT
+
F1
120
µ
/
70
µ
NR
OFF/B
F3
LPF
VCC
DETECT
MS ON/
OFF
NR
MODE
FWD/RVS
TAPE EQ
TAPE/AUX
NR BIAS
NR
MS
MODE
OFF/B
T2
T1
– 42 –
IC351
LC75373ED
+
–
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
–
+
–
+
–
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
IC401
IR3R42
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
1
2
3
4
5
6 7
8
9
10
20
19 18
17
16
15
14 13
12
11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND
VCO
LPF1A
LPF1B
DETIN
LPF2A
LPF2B
SUBIN
SUBOUT
MON
+
–
+
–
CONTROL
CIRCUIT
1
2
3
4
5
6
7
8
SWC
IN+A
IN–A
–VCC
OUT
IN–B
IN+B
+VCC
IC431, 441
M5201FP
IC552
RN5VD23AA-TL
1
2
3
4
5
+
–
–
VREF
CD
NC
OUT
VDD
G
ND
IC571
BA8270F-E2
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
– 43 –
IC601
BA3918-V3
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
MODE2
MODE1
STB
VDD
AMP
VCC
ANT
COM
AM
FM
GND
IC651
MM1322XFBE
1
2
3
4
5
6
7
8 OUT2
VS
OUT1
GND
IN1
VCC
IN2
GND
CONTROL CIRCUIT
•
Waveforms
1
IC31
1
(X OUT)
3.6 Vp-p
139 nsec
3
IC701
^ª
(X OUT)
5.5 Vp-p
200 nsec
2
IC701
&™
(XT OUT)
5.7 Vp-p
30.6
µ
sec
– 44 –
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
packing materials are given in the last of the
electrical parts list.
(1) CHASSIS SECTION
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-009-294-01 PANEL, SUB
2
3-913-076-01 SPRING (C DOOR), TORSION
3
3-922-165-21 DOOR, CASSETTE
4
X-3367-636-1 LOCK ASSY
* 5
A-3309-906-A MAIN (B) BOARD, COMPLETE
6
3-915-923-01 SCREW, GROUND POINT
* 7
X-3373-270-1 COVER ASSY
* 8
3-009-809-01 BRACKET (IC)
* 9
3-010-516-01 HEAT SINK
10
9-911-840-XX CUSHION (U)
* 11
3-010-378-01 INSULATOR
* 12
3-009-810-11 CHASSIS
CNJ900 1-776-207-11 CORD (WITH CONNECTOR) (POWER)
F401
F401
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)
7
MG-52A-135
not supplied
#3
F401
9
8
#4
#4
#1
#4
#1
11
10
12
1
#1
#1
#2
Front panel ass’y
4
3
2
5
6
CNJ900
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