Audio Block Diagram - Panasonic DVD-LS93P Service Manual

DVD-LS90PP / DVD-LS93P

14.4. AUDIO BLOCK DIAGRAM

IC3001-171
5.5Vp-p(5usec./div.)
IC3001
IC4001
(DV2.1)
(AUDIO DAC)
DATA
ADOUT3
171 6
(DMIX OUT)
AUDIO
RCK
SRCK 170 7 SERIAL
PORT
LRCK
LRCK 169 8
CONTROLLER
SYSTEM
SCK
DACCK
163 5 CLOCK
(DACSCK)
MANAGER
16
ZERR/
IECOUT 177 ZEROA
P13
55
(AMUT)
IC6001
(OPERATION MPU)
39
HPSENSE-H
IC6002
1
4
DCVOL 18
2
P10
16
(POWER MUT)
HPMUT-H 40
HPJOPEN-H 23
IC4001-14,15
4.0Vp-p(0.5msec./div.)
VOUTR
D/A LPF 14
MODULATOR
QR4005(1/2)
SIGNAL
LEVEL CTRL
QR4005(1/2)
SIGNAL
VOUTL
D/A LPF 15 LEVEL CTRL
QR4009(1/2)
BUFFER
QR4009(1/2)
BUFFER
QR4008
D+3.3V
QR4007
QR4004(1/2)
BUFFER
Q4002
JACK-IN
QR4004(1/2)
DET.
BUFFER IC4002(1/2)
6 7
IC4002(1/2)
2 1
QR4011
D4001 (1/2)
QR4003
MUTE
MUTE
CTRL
QR4011
(1/2)
MUTE
IC4003
(AUDIO POWER AMP/DC VOLUME CONTROL)
19 18
R-IN
-
10
-
+
+
VOLUME
BIAS
CONTROL
+
L-IN
12 -
BIAS
-
+
+
HPSENSE
MODE -
21
CONTROL
DC VOL
7
+
-
S-DOWN
POWER
2
MANAGEMENT
24 25
MUTE
JK4001
8
7 OPT OUT
MUTE 9
5
4
2
AUDIO OUT
3
1
40
:AUDIO SIGNAL
R-OUT-
26 -
R-OUT+
+
28
L-OUT+
+
15
L-OUT-
17 -
+ +
JK4003
1
2
3
4
5
JK4002
1
2
3
4
5
QR4012(1/2)
MUTE
QR4012(1/2)
MUTE
QR4006
MUTE
CTRL
QR4013(1/2)
MUTE
QR4013(1/2)
MUTE
SPEAKER
R
SPEAKER
L
HEAD
PHONE
HEAD
PHONE
DVD-LS90PP/93P
AUDIO BLOCK DIAGRAM