Technics RS-DV290EG Service Manual page 233

SCHEMATIC DIAGRAM-10
C
MAIN CIRCUIT
: POSITIVE VOLTAGE LINE
Q16
2SD874QRSTX
REGULATOR
R38
10
7.5V 9.8V
Q12
8.2V
R37 2SB1417PQTA
100
POWER SUPPLY
9V 10V
C19
9.2V
1000P
J F Q G
9V 9.2V
9V
9V
8.5V
Q15
2SB766ATX
POWER SUPPLY
5V 6V
C21
5.2V
1000P
Q14
FMW1T98
P. SUPPLY CONT.
5V 5.2V
R44
5V 1.2K
5V
4.5V
R42
100
Q7
2SB1417PQTA
POWER SUPPLY
L4
5V 6V
C10
5.2V
1000P
Q6
FMW1T98
5V 5.2V P. SUPPLY CONT.
R17
22K
5V
5V
D7
4.5V
MA728TX
10V
25 26
: AUDIO SIGNAL LINE :CENTER SP. SIGNAL LINE
: VIDEO SIGNAL LINE :SUB WOOFER SIGNAL LINE
R503 Z501
75 VLP0146-T
S
R506
Z502
75
VLP0146-T
T
R
Z503
R507
VLP0146-T
75
K
M
L
O
P
DC+10V
A
B
Q13
2SB1218TX
Q11 C
POWER SUPPLY
FMW1T98
R30 R31 CONT.
D
P. SUPPLY CONT. 100 680
9V 9V 10V
E
F
9.2V
R32
47K
D4
0V
MA111TX
5V
Q3
DTC114EUA106
1V 4V
SWITCHING
4 5
ADJ ON/ OFF
IC2
PQ1CZ31H2ZP
DC-DC
CONVERTER
GND VOUT VIN
3 2 1
6V 10V
L2 L1
CT.GND
SL-DV290(EE,GN) MAIN CIRCUIT DIAGRAM
27 28 29
:SURROUND SP. SIGNAL LINE
L501
JK501
VIDEO OUT
L502
Y C
JK501
S-VIDEO OUT
G G
JK1
20 SYNC
CD REQ
19
CT.GND
18
CS
17
+B (10V)
16
D.GND
15
SCLK
14
13 DATA
12 NC
To SOUND PROCESSOR(SH-DV290)
C816
11 V.GND
& CASSETTE DECK(RS-DV290)
16V10
10 S.WOOFER
9 CENTER
8 NC
C815
16V10
7 NC
6 NC
5 CD Rch OUT
4 CD A.GND
CD Lch OUT
3
SUR R
2
SUR L
1
D.GND A.GND
C30
1000P
C29
0.01
C26
16V10
R41
100
D17
MA111TX
D18
R40
MA111TX
0
E1
30 31 32 33 34 35
H
G
F
E
D
C
B
A
36