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IC Block Diagrams
(On the ASSY, PWB, MAIN)
IC101 < AUDIO AMP. > LA4919N-E
2
1
3
4
6
5
7
8
10
9
12
13
14
17
18
19
20
21
22
23
26
HP IN1
Headphone Block
27
Ripple filter
Ripple filter
Voltage
Regulator
Vcc
28
VG=6dB
VG=6dB
H/P Standby SW
15
16
A
B
AMP. Standby
SW
Output
amplifier
Output
amplifier
Nonlinear
amplifier
24
25
Muting circuit
used at power
on
Intput
amplifier
H. L. S
Switching regulator Block
Switching
Drive
A B C D
*
H. L. S
Higher Level
Signal Selector
Headphone stage
Input amplifier stage
Switching regulator stage
Power TR stage
VCC
C
D
Output
amplifier
Output
amplifier
Nonlinear
amplifier
OUT1
+
OUT1
-
Output amplifier
stage
11
REF amplifier
Input amplifier
HP IN2
HP OUT2
HP OUT1
HP D.C
HP Standby
AMP Standby
D.C
DDL
ON TIME
IN2
PRE GND
PRE VCC
IN-VREF
IN1
POWER GND
POWER GND
SW GND
SWB
SWE
SW OUT
OUT2
+
OUT2
-
NC
14
AFC
VCC
13
AFC CTL
12
VCO OUT
11
VCO IN
10
HD OUT
9
DET OUT
8
32fH
VCO
LOCK
DET
COUNT
DO
WN
SYNC
SEP
V.
SEP
NC
1
VIDEO IN
2
F.B CLAMP
3
SYNC OUT
4
VD OUT
5
GND
EXC
6
7
IC003 < Sync. Separation> LA7217M-T
IC150 < Audio Control/ 3D Surround>NJW1167V
6
8
1
7
20
10
25
22
AGC
BIAS
VOL 1
19
18
14 13
16
15
17
30
21
23
24
12
11
INa
AGC1
TONE Ha
TONE La
OUT a
CVA
CVB
CTH
CTL
CSR
SCL
SDA
V+
GND
VREF
OUT b
SR-FIL
TONE Hb
TONE Lb
5
2
3
4
INb
29
28
27
SS-FIL
26
9
PORT1
OUTw
32
VOL 1
eala
&
SIMULATED
STEREO
TONE
TONE
LPF
VOL 2
VOL 2
VOL 2
AGC2
31
LF1
LF2
LF3
Trimmer
ADR
CVW
PORT0
AUX0
AUX1
IIC BUS
INTERFACE
Summary of Contents for 113004620
Page 54: ...Sep 2006 ...