-6-
IC Block Diagrams
IC001 < Audio AMP.> LA42072-E
2
3
6
4
1
5
7
12
11
10
8
9
Output amplifier
Output amplifier
Input amplifier
Input amplifier
Standby
VCC
+OUT1
-OUT1
PWR
GND
+OUT2
-OUT2
Ripple
Filter
IN1
PRE
GND
MUTE
IN2
Ri=
20k
Ω
Ri=
20k
Ω
Vcc / ground shorting protection circuit
Load shorting protection circuit
Thermal protection circuit
IC501 < Vertical Output > LA78040/LA78040N
Thermal
Protection
-
+
AMP
Pump
Up
1
INVER
TING
INPUT
2
Vcc
3
PUMP
UP
OUT
4
GND
5
V
e
r.
OUTPUT
6
OUTPUT
ST
AGE Vcc
7
NON INV
.
INPUT
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CONTROL
DATA
CONTROL
TO
NE CONT
Matrix
TOT
AL
Bypass
SURROUND
MUTE
ANALOG
SURROUND
(AV
iSS)
SURROUND
Bypass
TOT
AL
Matrix
MUTE
Bypass
DC
Pseud
Stereo
MONO-SW
P-Stereo
P-Stereo
Bypass
DC
TO
NE CONT
GND
INPUT
-A(R)
INPUT
-B(R)
INPUT
-C(R)
LINE-OUT(R)
DC CUT(R)
ST
-1
ST
-2
TREBLE(R)
BASS-1(R)
BASS-2(R)
OUT(R)
EVR-IN(R)
EVR-OUT(R)
L+R OUT
VREF
VCC
VDD
12C-DA
T
A
12C-CLK
VSS
L+R LPF
EVR-OUT(L)
EVR-IN(L)
OUT(L)
BASS-2(L)
BASS-1(L)
TREBLE(L)
A
viSS HPF
ST
-2
DC CUT(L)
LINE OUT(L)
INPUT
-C(L)
INPUT
-B(L)
INPUT
-A(L)
ANALOG GN
D
IC3701 < Audio Control> QLV1116NV-EP
SM_21-BA5V(AC6-A)AUS 7/25/06 9:24 AM Page 6
