Schematic Diagram - Technics SC-EH760 Service Manual

SCHEMATIC DIAGRAM- 2

-27.6V
51
-26.9V
A 52
-21.8V
B 53
-21.7V
C 54
-11.8V
D 55
-16.8V
E 56
-17.1V
F 57
-21.7V
G 58
-21.7V
H 59
-12V
I 60
-12.6V
J 61
-7.6V
K 62
-16.8V
L 63
-9.6V
M 64
-6.8V
N 65
-18V
O 66
-18V
P 67
-18V
Q 68
-11.4V
R 69
-11.4V
S 70
-12.2V
T 71
5.2V
72
-18V
U 73
-12.4V
V 74
-9.6V
W 75
-4.8V
X 76
-11.7V
Y 77
1.5V
78
0V
79
0V
80
D306
SELS5223C
R939 ( )
1.5K
A
D954
SELS5923C
R986 ( PLAY /
1.5K
B
D951
LNJ301MPUJAD
(DIGITAL
R995
S.WOOFER )
220
C
: POSITIVE VOLTAGE LINE
: NEGATIVE VOLTAGE LINE
-27.6V
A B C D E F G H I J K
50 49 48 47 46 45 44 43 42 41 40 39 38 37
- VP
P11
P12
T 3.1ms.
IC901
P13
LC8A524A5N28
P14
SYSTEM CONTROL/
P15
FL DRIVE
P16
4V
P17
0V
3.4V
P18
-25V
P-P
P19
T 3.1ms.
P20
F=6MHz
P21
P22
5.2V
P23
P-P
P24
F=32.7kHz
P25
P26
5V
P27
P28
F=32.7kHz
0V
P29
T 16ms.
P30
V 4
DD
5V
P31
P32
0V
2V/2ms.DIV.
P33
2V/2ms.DIV.
P34
5V
P35
REGIN0
0V
REGIN1
T 10ms.
STANDBY
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
A B
C
D915
1SS291TA
5.2V
REC )
L O P U
A
B
C
L M N O P Q R S T
36 35 34 33 32 31
NC 30
4V
5.2V
0V
REMOCON 29
2.6V
-25V RDS DATA 28
2.5V
RDS CLK 27
0.5V
HP SW 26
5.2V
MIC DET 25
4.4V
5.2V
P-P
VR JOGA 24
5.2V
VR JOGB 23
F=6MHz
NC(GND) 22
1.3V
SH REQ 21
5.2V
KEY KARAOKE 20
5.2V
KEY TU 19
5.2V
V 1 18
DD
2.5V
XC OUT 17
2.2V
XC IN 16
V 15
SS
2.7V
X OUT 14
1.8V
1.7V
X IN 13
P-P
5.1V
RESET 12
2V
AC IN 11
0V
SEL/ TUNER 10
5.2V
SEL TUNER 9
ST/ AV6CH 8
5V
5.1V
RL2 7
5.1V
0V RL1 6
5.2V
LC72 CK 5
5.1V
LC72 DO/ST 4
0V
LC72 CE 3
0V
LC72 DI 2
2.6V
CHECK 1
T P
R926
2.2K
R919
15K
R991
47K
K I N E
Q901
UN4212TA
U V
RESET
5.2V
22K
0V
22K
5.1V
A
B
C
D
E
F
R953 100
R956 R957
1K 1K
R938 1K
R941 1K
R942 1K
R929 1K
R930 1K
R932 1K
R931 1K
X901
(6MHz)
1
2
3
R954 R951 C910
100K 330K 20P
C911
18P
D902 D901
1SS291TA 1SS291TA
6.2V
Q
J
H
R
F
G
A
B
D
C