Technics SX-PX552, Service Manual

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23
24
42
1
26
27
28
2
9
8
7
6
17
16
34
35
36
37
38
39
40
41
15
14
13
12
30
31
32
33
22
21
19
20
25
18
10
5
4
3
29
11
VDD
R1
4.7K
R4 100
R3 0 R2 0
EF0MC4004T5
0.1
C2
0.022
6.3V100
6.3V100
R10
10K
R7 220
R6 220
R8 470
R11
100K
R26
100 R27
100 R28
100 R29
100 R30
100 R31
100
10K R25
10K R19
10K R18
10K R17
C3
C4
C1
M37471M2196S
IC1
VSS
XIN
XOUT
RST
VREF
ID
SIN
SOUT
CLK
SW0
SW1
SW2
SW3
SW4
SW5
+5IP
CN1
QRVG25P01B53
2SA830STPB
2SA830STPB
2SA830STPB
2SA830STPB
2SA830STPB
Q2
Q3
Q4
Q5
Q6
CN4
VR2
DATA
SCK
E
5M1
SW6
SW7
CM0
CM1
CM2
CM3
CM4
CM5
SEG0 A
B
C
D
E
F
G
H
I
J
K
L
A B C D E F
A B C D E F
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
CNTR1
ADD
R5 470
1
2
3
4
5
SUMR
SUML
E
VOLR
VOLL
------
1
2
3
4
5
6
10K R16
10K R15
10K R24
10K R23
10K R22
10K R21
+5IP
+5IP
+5IP
X1
+5IP
+5IP
14
7
12
13
10
11
8
9
6
5
4
3
2
1
VCC
GND
C7
0.1
2
3
1
2
3
1
UNLESS OTHERWISE SPECIFIED:
SWITCHES ARE EVQ21507K,
DIODES ARE MA165TA5.
CPL CIRCUIT
C
TO
MAIN
CN3
TO
MAIN
CN2
IC2
HD74LS07P
(HEX BUFFERS)
(8BIT MICROCOMPUTER)