Sony CX-LEM220 Service Manual ▷ View online
22
22
CX-LEM220
CX-LEM220
7-6. PRINTED WIRING BOARD — AMP SECTION —
•
See page 15 for Circuit Boards Location.
:Uses unleaded solder.
IC501
IC305
AMP BOARD
HP BOARD
MAIN BOARD
CNB307
F
MAIN BOARD
CNB308
B
MAIN BOARD
CN501B
D
1-863-864-
11
11
1-863-867-
11
11
PHONES
J301
1
2
7
6
3
4
5
3
1
L501
L502
(Page 20)
(Page 20)
(Page 20)
23
23
CX-LEM220
CX-LEM220
7-7. SCHEMATIC DIAGRAM — AMP SECTION —
19.6
0
0
0
0
0
19.7
-19.6
0
0
0
0
0
NO MARK: FM
18.4
9.9
AMP BOARD
MAIN
BOARD
CNB308
IC501
POWER AMP
MAIN
BOARD
CN501B
HP BOARD
IC305
REGULATOR
MAIN
BOARD
CNB307
1SS133T-77
1SS133T-77
0.0022
35V
0.0022
470P
470P
10K
D
F
B
PHONES
0.0022
0.0022
0.01
0.01
22K
(Page 21)
(Page 21)
(Page 21)
24
24
CX-LEM220
CX-LEM220
7-8. PRINTED WIRING BOARD — CONTROL BOARD —
• Semiconductor
Location
Ref. No.
Location
D801
C-5
D803
C-5
D806
B-1
D807
B-5
D808
B-5
D809
A-6
D810
B-5
D811
B-6
D812
A-6
D813
B-5
D880
A-5
IC801
B-3
IC802
B-1
IC803
B-5
Q801
B-4
Q802
C-5
Q803
C-6
Q804
C-5
Q805
C-5
Q807
B-5
Q808
B-5
•
See page 15 for Circuit Boards Location.
:Uses unleaded solder.
IC801
IC803
IC802
CONTROL BOARD
MAIN
BOARD
CN303
C
MAIN
BOARD
CN302
G
BASS/
TREBLE
FM/AM
TUNER PACK
ANTENNA
TAPE MECHANISM
DECK BLOCK
PLAY MODE/
TUNING MODE
ROTARY
ENCODER
?/1
CD
NX
TUNING
+
>
TUNER/
BAND
TUNING
−
.
DISPLAY
TAPE
N
zREC
PAUSE/START
CD SYNCHRO
FM 75
Ω
(COAXIAL)
AM
x
1-863-865-
i-Bass
M
m
VOLUME
(11)
11
1
3
1
3
100
E
E
E
E
E
S820
CD LID
OPEN/CLOSE
DETECT
FLUORESCENT INDICATOR TUBE
(Page 20)
(Page 20)
25
25
CX-LEM220
CX-LEM220
7-9. SCHEMATIC DIAGRAM — CONTROL BOARD —
• See page 28 for Waveforms.
• See page 30 for IC Pin Function Description.
NO.
VOLTAGE CHART
IC801
IC801
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
VOLT
–
–
–
–
–
–
0
0
0
–
–
–
–
–
0
0
0
1.4
3.3
1.2
1.7
3.3
1.2
1.7
–
1.5
1.8
3.3
1.4
3.3
3.3
3.3
3.4
3.4
1.8
3.3
1.4
3.3
3.3
3.3
3.4
3.4
0
0
0
NO.
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
VOLT
0
3.3
0
3.2
-30.4
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.6
-28.5
-14.1
-25.2
-30.7
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.5
-28.6
-28.5
-14.1
-25.2
-30.7
3.2
-27.9
-19.4
-16.6
-22.4
-19.4
-16.6
-22.4
NO.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
VOLT
-30.8
-22.4
-16.6
-19.4
-30.7
-30.7
-30.7
-19.4
-28.0
-30.7
-30.8
-22.4
-16.6
-19.4
-30.7
-30.7
-30.7
-19.4
-28.0
-30.7
–
–
–
–
–
0
–
–
–
–
0
3.4
3.4
3.4
–
2.7
2.7
3.2
2.7
3.2
0
0
0
2.8
NO.
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
VOLT
0
0
0
0
0
3.1
0
0
0
0
0
-0.3
-0.4
-0.4
3.1
–
0
0
3.2
0
3.2
–
–
–
0
–
–
0
2.5
0.4
2.5
0.4
2.5
0
–
0
–
0
0
3.2
0
3.3
0
0.3
9.9
9.9
9.9
9.9
9.9
9.9
0
0
3.2
3.2
3.4
3.2
2.7
0
NO MARK: FM
16V
SL1-343DUT32
SLR-342VC3F
V
-77
-77
-77
-77
-TP
35V
-17
VOLUME
X802
0.001
0
47K
47K
0
-77
-77
10K
0
V
RD5.1ESB2
V
V
-77
6
7
C
MAIN
BOARD
CN303
G
S820
(OPEN)
CONTROL BOARD
DISPLAY
i-Bass
BASS/
TREBLE
TUNER/BAND
CD
TAPE
CD SYNCHRO
N
X
z
REC
PAUSE/START
PLAY MODE/
TUNING MODE
?/1
N
.
TUNING -
>
TUNING +
m
M
x
IC803
VOLTAGE DETECT
CONTROL
BOARD
CN302
TAPE
MECHANISM
DECK
(PLAY)
(R REC)
(PACK)
M1
(DECK)
(T END)
FM/AM
TUNER PACK
(Not used)
FM 75
Ω
(COAXIAL)
AM
ANTENNA
IC802
REMOTE CONTROL
RECEIVER
IC802
RPM7240-H4
FLUORESCENT INDICATOR TUBE
IC801
LC876964C-53L2-E
IC801
SYSTEM
CONTROLLER
1/2W
Q804,805
CAPSTAN/REEL
MOTOR DRIVE
Q802,803
PLUNGER DRIVE
RESET SWITCH
Q807,808
LED DRIVE
NOTE:
RXXX
R874
(Page 21)
(Page 21)
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