Technics RS-DV290EG Service Manual page 260

BA4558FHTT1
IC805
VREF +B2
+B2
NJM4580EDTE1
IC802 (1/2)
BUFFER
AMP
Q802
D802
NJM4580EDTE1
MUTING
(1/2)
IC802
BUFFER
AMP
Q801
D801
MUTING
NJM4580EDTE1
IC804
BUFFER
AMP
D805
(D806)
Q805
NJM4580EDTE1
MUTING
(Q806)
IC803
BUFFER
AMP
D803
(D804)
Q803
MUTING
(Q804)
Q308,807
MUTING
CONT.
D306
Q307
D305
MUTING
CONT.
D307
+B1
+B2
C0JBAS000138
IC801
SIGNAL SELECTOR
D+2.5V
14
V DD 13
A+5V
1
2
5
D+5V
4 3
6
8 9
ADAC5V
11 10
12
V SS
M+9V
7
Q303
S.SELECTOR
CONT.
+B3
MUTE
C/SW SEL
MIXSEL
NJU3713GTE1
IC601
WIDE1
LED DRIVE
10 11 12
13
18
V
DD +B3
5
Vss DCLK
DCMD
14 15 1~4, 16,17
6 DSTAT
D608
( )
D601~607
(CINEMA/DOUBLE
RE-MASTER/DISC1~5)
Q16
REGULATOR
Q8,9
POWER
SUPPLY/
PQ1CZ31H2ZP
CONT.
Q6,7
IC2
L2,4 L1
POWER
DC-DC
SUPPLY/
CONVERTER
CONT.
LM2940T5M
IC3
REGULATOR
Q14,15
POWER
SUPPLY/
CONT.
Q11~13
POWER
SUPPLY/
CONT.
NJM78M05FA Q3 SWITCH-
ING
IC4
REGULATOR
+B3
24 23 22 25 5 2 1
4
MUTE
7
C/SW SEL
13
MIXSEL
SYSTEM CONTROL
14
WIDE1
34
35 36 37 21 15 3 33 32
Q304,
+B1
PLUNGER
TA7291P
Q1
IC1 D2
MOTOR
MOTOR DRIVE
4 DRIVE
2 5
M
10 6
RM1
(LOADING
MOTOR)
1 7,8
D302~304
+B1
JK1
20 SYNC
19 CD REQ
18 CT.GND
CT.GND
17 CS
DC+10V
16 +B(10V)
D.GND
A.GND
15 D.GND
14 SCLK
13 DATA
Q402,
Q404
403
12 NC
INTER- INTER-
FACE FACE
11 V.GND
10 S.WOOFER
9 CENTER
8 NC
7 NC
6 NC
R ch 5 CD Rch OUT
4
CD A.GND
3 CD Lch OUT
R ch 2 SUR R
1 SUR L
Q401
RESET
+B3
X401
(8MHz)
+B3
42
8 9 6 16 10 11 12 19 20 18
C2BBFD000402
IC401
26 28 41 40 27 30 29 31 39
305
PLUNGER
DRIVE
KEY SWITCH
(S601~621)
+B3
Notes) : VIDEO/AUDIO SIGNAL LINE
: VIDEO SIGNAL LINE
: AUDIO SIGNAL LINE
D1
: SUB WOOFER SIGNAL LINE
(POSITION
: CENTER SP. SIGNAL LINE
SENSOR)
: SURROUND SP. SIGNAL LINE
( ) indicates pin No. Right channel.
SL-DV290(EE,GN) BLOCK DIAGRAM
To SOUND PROCESSOR
&CASSETTE DECK
BLOCK DIAGRAM
+B3