Panasonic DVD-LS80EE, Service Manual

Page: 48 / 77

15.4. AUDIO BLOCK DIAGRAM
QR4023(1/2)
MUTE
QR4023(1/2)
MUTE
QR4022(1/2)
MUTE
QR4022(1/2)
MUTE
HEAD
PHONE
JK4004
1
5
7
4
3
2
HEAD
PHONE
SPEAKER
L
SPEAKER
R
-
-
+
+
JK4003
1
5
7
4
3
2
QR4009
(1/2)
MUTE
QR4009
(1/2)
MUTE
QR4004
MUTE
CTL
MUTE
CTL
QR4003
QR4002
MUTE CTL
QR4005
MUTE CTL
QR4006
INV.
QR4011
INV.
QR4007
INV.
QR4010
INV.
QR4014
INV.
QR4015
INV.
0.4Vp-p(200usec/div)
0.7Vp-p(200usec/div)
JK4001
2 1
6 7
1
5
7
4
2
3
VOLUME
BIAS
R-IN
L-IN
HPSENSE
DC VOL
MUTE
BIAS
CONTROL
IC4005(1/2)
HPSENSE-H
PWM
POWERMUT
HPMUT-L
HPMUT-L
AJIN-L
HPJIN-L
IC4005(1/2)
MODE
CONTROL
POWER
MANAGEMENT
AUDIO IN/OUT
:AUDIO SIGNAL
28
26
R-OUT-
L-OUT-
R-OUT+
L-OUT+
15
17
19 18
24
10
12
21
5
S-DOWN
2
7
25
80
64
+
-
+
-
+
-
+
-
+
-
+
-
QR6001
AVIN
INV.
QR4021
INV.
IC6003
VOUTR
VOUTL
AMUT
(DV5.0)
B 9
A
X1 X
DVD-TUNER
10
14
X3
11
X2 15
Y3 4
Y2 2
Y1 5
13
Y 3
(SELECTOR))
IC4004
INA 2 OUTA 8
OUTB 5 INB 3
O CNT 4
(SW AMP)
IC4006
(AUDIO POWER AMP/DC VOLUME CONTROL)
IC4008
146
HPSENSE-H
61 AVIN-INV
72 SMUTE-H
26 DCVOL
62
DVD-TUNER
27
AUXIN-H
AUXIN-H
60
46
HPIN-L
47
AJIN-L
63
POWER-MUTE
144
LOUT
P5
IC3001
(OPERATION MPU)
IC6001
ROUT
4
1
2
DVD-LS80EE/GN/GCS/LS82EE
AUDIO BLOCK DIAGRAM
AVIN
DVD-LS80EE / DVD-LS80GN / DVD-LS80GCS / DVD-LS82EE
48