Sony XR-3740 / XR-C340 Service Manual ▷ View online
– 37 –
IC301
CXA2509AQ-T4
•
IC Block Diagrams
+
–
–
+
–
+
–
+
–
+ –
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
+
–
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
–
+
–
+
–
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
1
2
3
4
5
6
7
8 OUT2
VS
OUT1
GND
IN1
VCC
IN2
GND
CONTROL CIRCUIT
IC401
LC75373ED
IC361
MM1322XFBE
– 38 –
IC601
BA3918-V2
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3 4
5
6
7
8
9
10
12
11
NC
M
ODE2
M
ODE1
STB
VDD
AMP
VCC
ANT
COM
AM
FM
GND
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
IC701
BA8270F-E2
– 39 –
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
SECTION 7
EXPLODED VIEWS
Front panel ass’y
MG-52A-135
#2
#3
#3
2
3
4
5
6
7
10
19
8
F801
17
16
9
11
11
18
12
13
#4
#4
#3
#1
#3
#3
#3
XR-C340
XR-3740
1
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 (XR-C340)
2
3-935-003-01 SPRING, TORSION (XR-3740)
3
3-918-583-31 DOOR, CASSETTE (XR-C340)
3
3-932-205-21 DOOR, CASSETTE (XR-3740)
4
X-3367-636-1 LOCK ASSY
*
5
3-013-073-01 INSULATOR (XR-3740)
*
5
3-011-295-01 INSULATOR (MAIN) (XR-C340)
*
6
A-3309-876-A MAIN BOARD, COMPLETE (XR-C340)
*
6
A-3309-910-A MAIN BOARD, COMPLETE (XR-3740)
7
3-915-923-01 SCREW, GROUND POINT
*
8
X-3373-203-1 COVER ASSY (XR-C340)
*
8
X-3373-270-1 COVER ASSY (XR-3740)
9
1-777-989-21 CORD (WITH CONNECTOR) (AMP REM)
(XR-C340)
*
10
3-012-264-01 BRACKET (52)
*
11
3-009-293-01 HEAT SINK (XR-C340)
*
11
3-010-471-01 HEAT SINK (XR-3740)
12
9-911-840-XX CUSHION (U)
*
13
3-009-813-01 CHASSIS (XR-3740)
*
13
3-010-075-01 CHASSIS (XR-C340)
*
15
A-3309-752-A CONNECTOR BOARD, COMPLETE (XR-C340)
*
15
A-3309-913-A CONNECTOR BOARD, COMPLETE (XR-3740)
16
1-782-092-11 CORD (WITH CONNECTOR) (POWER)
17
1-782-093-11 CORD (WITH CONNECTOR) (SPEAKER)
*
18
3-012-860-01 CAP (52), RUBBER
*
19
3-009-816-01 BRACKET (IC) (ISO)
F801
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)
•
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
15
XR-C340
#1
not
supplied
supplied
– 40 –
(2) FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
59
3-010-387-01 BUTTON (PRESET) (
6. 1. 2. 3. 4. 5. 6. DSPL)
60
3-010-391-01 BUTTON (L. D) (LCL. – DISC +) (XR-C340)
60
3-010-392-01 BUTTON (L. P) (LCL. – PRST +) (XR-3740)
*
61
3-010-375-01 SHEET (REFLECTOR)
*
62
3-010-393-01 PLATE (LCD), LIGHT GUIDE
*
63
3-010-394-01 HOLDER (LCD)
64
3-010-382-01 PANEL, FRONT BACK
LCD901 1-801-586-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-C340)
LCD901 1-801-588-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-3740)
LCD901 1-801-588-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-3740)
51
3-010-396-01 KNOB (D-BASS)
53
3-010-398-01 BUTTON (RELEASE)
54
3-010-395-01 SPRING (RELEASE) (XR-3740)
54
3-011-954-01 SPRING (RELEASE) (XR-C340)
55
X-3373-679-1 PANEL SUB ASSY (XR-3740)
55
X-3373-846-1 PANEL SUB ASSY (XR-C340)
56
3-010-383-01 BUTTON (SOURCE)
57
3-010-384-01 BUTTON (M. O. S)
(
r. OFF. – = 0. SEEK AMS. + + ))
58
3-010-386-01 BUTTON (B. M. +/–) (– . SEL. +. MUTE. BTM)
53
51
54
55
56
57
58
59
61
62
63
64
60
not supplied
(KEY board)
(KEY board)
LCD901
#5
#5
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