Audio Block Diagram - Panasonic DMR-EH80VEG Service Manual

DMR-EH80VEG / DMR-EH80VEB

23.4. AUDIO BLOCK DIAGRAM

FROM XTMUTE_L
INTERFACE IC37501 63
JK3901
21 PIN JACK
AUDIO IN ch2(R)
2
AV1
(TV) AUDIO IN ch1(L)
6
AUDIO IN ch2(R)
2
AV2
(DECODER/EXT) AUDIO IN ch1(L)
6
JK3902
21 PIN JACK
JK4600
FRONT INPUT JACK
PP4600 PS6002
3
5 5
LINE
2
(Rch)
1
AV3
AUDIO
(FRONT) PP4600 PS6002
5
7 7
LINE
(Lch/MONO)
4
Nicam Decoder(A) P.C.B.
TU7402
DVD
TUNER
PK7403 PK7301
SIFOUT 15
1
TUNER PK7403 PK7301
14
AUDIO
3
TU7401
VHS
TUNER
PK7401 PK7301
SIFOUT 15
1
TUNER 14 PK7401 PK7301
AUDIO 3
Nicam Decoder(B) P.C.B.
TU7403
RF CONVERTER
AUDIO
5
IN
FROM
P93702 IEC OUT
DIGITAL
36
P.C.B.
QR4501 QR4502/QR4504
QR4503/QR4505
IC3901
P31903 P6003
56
6 6
P31903 P6003
64
9 9
52
60
53
61
Max
4.5V
5.6Vpp
AUDIO SIGNAL
50
58
2 4
IC4501
IC7301
(NICAM DECODER)
PK7302 PK7404
25 SIF OUT R 2 51
4
PK7302 PK7404
38 MONO IN OUT L 1 59
6
IC7301
(NICAM DECODER)
PK7302 PK7402
25 SIF OUT R 2 54
4
PK7302 PK7402
43 MONO IN OUT L 1 62
6
QR4910,QR4908
FROM
COM_MUTE SYSTEM
MUTE
IC6001 73 CONTROL
SECTION
76
(SA1R)
a
DAC Rch BUFF.
b
c LPF
d
e
DAC Lch
OUTPUT
SELECT SWITCH
(SA3R) (SA4R)
AV1 Rch
a a
b b
AV1 Lch
c c AGC
d d
AV2 Rch
e
AV2 Lch
(SA5R) (SA2R)
BUFF.
AV4 a
BUFF.
b
TUN c LPF
d
e
AV3 Rch
(SA2L)
AV3 Lch
a
BUFF.
b
c LPF
d
e
OUTPUT
SELECT SWITCH
(SA3L) (SA4L)
a a
b b
c c AGC
d d
TUN_2 Rch
e
(SA5L)
TUN_2 Lch BUFF.
AV4
(SA1L)
TUN
a
BUFF.
b
c LPF
d
e
TUN Rch
TUN Lch
IIC BUS
LOGIC
RF OUT
+
MUTE VCA
MIX
IC34001
(OPTICAL AUDIO BUFFER)
2 4
72
:REC SIGNAL :PB SIGNAL
JK35001
REAR JACK
4
2
1
JK3901
21 PIN JACK
AV1 Rch AUDIO OUT Ch2(R)
MUTE 72 1
AUDIO OUT Ch1(L)
3
ADC Rch ADC Rch
79
AMP
AV2 Rch AUDIO OUT Ch2(R)
MUTE 74 1
AUDIO OUT Ch1(L)
3
JK3902
21 PIN JACK
AV2 Lch
MUTE 73
AADC R
ADC Lch ADC Lch AADC L
78
AMP
AV1 Lch
MUTE 71
SCL
IIC CLK
88
IC37501 28
SDA IIC DATA
89
IC37501 29
5V
2.3V
1.0V
JK4901
OPTICAL
(DIGITAL AUDIO OUT)
P31901
P6001
1
5 5
LINE OUT
(L)
AV4
LINE OUT
(R)
AV1
(TV)
AV2
(DECEODER/EXT)
P39702
31
TO
DIGITAL
P.C.B.
P39702
29
FROM
INTERFACE
DMR-EH80VEG
DMR-EH80VEB
AUDIO
BLOCK DIAGRAM