Panasonic DMR-EX75EG - Analog Audio Block Diagram

12.3. ANALOG AUDIO BLOCK DIAGRAM
DMR-EX75EG/EC/EB
DMR-EX85EG/EB
ANALOG AUDIO
BLOCK DIAGRAM
AV4
(SA4L)
SELECT SWITCH
OUTPUT
AV2
(DECODER/EXT)
(TV)
AV1
1.0V
5V
2.3V
:PB SIGNAL:REC SIGNAL
IEC OUT
1
(DIGITAL AUDIO OUT)
OPTICAL
IC4901
P. C . B .
DIGITAL
FROM
P59001 P7402
44
AADC L
AADC R
AUDIO OUT Ch1(L)
AUDIO OUT Ch2(R)
MIX L OUT2
MIX R OUT2
AUDIO OUT Ch2(R)
AUDIO OUT Ch1(L)
REAR JACK
JK3001
(R)
LINE OUT
(L)
LINE OUT
21
19
16
18
P. C . B .DIGITAL
TO
P7402
19
P59001
P7402 P59001
17
(DECEODER/EXT)
AV2
1
3
(TV)
AV1
3
1
21 PIN JACK
JK3901
LOGIC
IIC BUS
SDA
89
88
SCL
SECTION
TIMER
FROM
30
IC7501-
IIC DATA
29
IC7501-
IIC CLK
71
AV1 Lch
78
ADC Lch
73
AV2 Lch
74
AV2 Rc h
79
ADC Rch
AV1 Rc h
72
LPF
BUFF.
MUTE
AGC
AMP
ADC Lch
LPF
BUFF.
MUTE
LPF
BUFF.
MUTE
d
c
b
a
MUTE
BUFF.
LPF
AMP
ADC Rch
AGC
TUNER P.C.B.
TUNER
TU7800
SIF OUT
OUT
AUDIO
22
21
77
CN7800
CN7800
PP7401
PP7401
66
(NICAM/A2)
IC7301
SIF
IN
MONO
L OUT
R OUT
1
2
25
38
TUN Lch
62
54
TUN Rch
AV4
TUN
(SA5L)
BUFF.
e
d
c
b
a
(SA1L)
e
d
c
b
a
(SA3L)
e
d
c
b
a
(SA2L)
58
AV3 Lch(FRONT)
AV3
FRONT INPUT JACK
JK3002
AUDIO
(Lch/MONO)
LINE
(Rch)
LINE
9
10
11
12
13
d
c
b
a
(SA4R)
SELECT SWITCH
OUTPUT
AV3 Rc h
50
(SA5R)
TUN
AV4
BUFF.
e
d
c
b
a
(SA2R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
21 PIN JACK
JK3901
6
2
6
2
AV2 Lch
61
AV2 Rc h
53
AV1 Lch
AV1 Rc h
DAC Lch
DAC Rch
60
52
e
d
c
b
a
(SA3R)
e
d
c
b
a
(SA1R)
(AUDIO SIGNAL PROCESSOR)
IC3001
64
56
Q4008
D4006 Q4009
MUTE
MUTE
D4005
Q4007
Q4006
MUTE
MUTE
(BUFFER)
IC4009
6
12
MIX L OUT DM
MIX R OUT DM
P. C . B .DIGITAL
FROM
P59001 P7402
39
41
P7402P59001
16
IC54402-
XDMUTE
P. C . B .
DIGITAL
FROM
QR4002
CIRCUIT
MUTE
SECTION
TIMER
FROM
65
IC7501-
XTMUTE
DIGITAL AUDIO
BLOCK SECTION
DIGITAL AUDIO
BLOCK SECTION
MAIN P.C.B.
59
AV4 Lch
17
18
21
20
LINE
(Rch)
LINE
(Lch)
AUDIO
JK3001
REAR INPUT JACK
AV4
(REAR)
AV4 Rch
51
7
12 12
10 10
P7412
P7412
CN9003
CN9003
FROM
BACKEND
P. C . B .
G_DT_IN_L_A
G_DT_IN_R_A
63
55
21
20
IF
IF
OUT-
OUT+
P7412CN7800
P7412CN7800
3322
2233
CN9003PP7401
CN9003PP7401
TO
BACK END P.C.B.
IF OUT [
_
]
IF OUT [+]
DMR-EX75EG / DMR-EX75EC / DMR-EX75EB / DMR-EX85EG / DMR-EX85EB
50