Technics RS-DV290EG Service Manual page 251

DIO SIGNAL LINE : VIDEO SIGNAL LINE
W
N
R801 C801 R805
1K 16V10 10K
B
R802 C802 R806
1.8K 16V10 8.2K
A
R827 C821 R831
100 16V10 15K
D
R828 C822 R832
100 16V10 15K
C
R847 C835 R851
1K 16V10 10K
V
R848 C836
1K 16V10
U
E
2.5V
I
5V
H
5V
R43
0.33
8 19
:SURROUND SP. SIGNAL LINE
7.5V
IC802
NJM4580EDTE1
R809
15K
BUFFER AMP(C/SW)
R807 C80
22K 47P
0V 0V 0V 7.5V
5 6 7 8
4 3 2 1
0V 0V 0V
R808 C806
22K 47P
R810
22K
IC803
NJM4580EDTE1
R837
15K
BUFFER AMP(SL/SR)
R833 C825
22K 47P
0V 0V 0V 7.5V
5 6 7 8
4 3 2 1
0V 0V 0V
R834 C826
22K 47P
R838
15K
IC804
NJM4580EDTE1
R857
15K
BUFFER AMP(FL/FR)
R853 C839
22K 47P
0V 0V 0V 7.5V
5 6 7 8
4 3 2 1
0V 0V 0V
R852 R854 C840
10K 22K 47P
R858
15K
(7.5V) 0V
R867
47K
IC4
NJM78M05FA
GND OUT IN REGULATOR
3 2 1
5V 10V
10V
20
:CENTER SP. SIGNAL LINE :SUB WOOFER SIGNAL LINE
Q801,802
2SD1328TX
MUTING
C809 R815 C813
16V22 1K 16V10
Q801
R813
0V
D801
3.3K
0.7V
(-0.5V)
D801,802
MA111TX
Q802
R814
D802
3.3K
0.7V
(-0.5V)
0V
C810 R816 C814
16V22 470 16V10
C828
Q803,804
0.1
2SD1328TX
MUTING
C829 R841 C833
6.3V47 1K 6.3V47
Q803
R839
0V
D803
3.3K
0.7V
(-0.5V)
D803,804
MA111TX
Q804
R840
D804
3.3K
0.7V
(-0.5V)
0V
C830 R842 C834
6.3V47 1K 6.3V47
C842 Q805,806
0.1
2SD1328TX
MUTING
C843 R861 C847
6.3V47 1K 6.3V47
Q805
R859
0V
D805
3.3K
0.7V
(-0.5V)
D805,806
MA111TX
Q806
R860
D806
3.3K
0.7V
(-0.5V)
0V
C844 R862 C848
6.3V47 1K 6.3V47
(-0.6V)
7.5V
Q807
UN5111TX
MUTING CONT.
7.5V
IC3
LM2940T5M
OUT GND IN REGULATOR
3 2 1
5V 6V
21 22
7.5V
0V
Q303
IC801
DTC114EUA106
C0JBAS000138
R821
SIGNAL SELECTOR
100K
CONT. SIGNAL SELECTOR
0V 0V 0V 0V 7.5V 7.5V 7.5V
8 9 10 11 12 13 14
7 6 5 4 3 2 1
7.5V 7.5V 0V 0V 0V 0V
IC805
BA4558FHTT1
F
VREF
7V 7V
5 6 7
4 3 2
4.2V 4.2V
E
D
C
Q9
2SB1417PQTA
POWER SUPPLY
2.5V
C12
1000P
2.5V
2.5V
6V
SL-DV290(EE,GN) MAIN CIRCUIT DIAGRAM
23
B
R820
100K
A
R822
100K
7.5V
8
1
4.2V
R825
1.2K
6V
5.2V
Q8
FMW1T98
POWER SUPPLY
CONT.
5.2V
2.5V
1.8V
24