Analog Audio Block Diagram - Panasonic DMR-EH57EC Service Manual

DMR-EH57EC / DMR-EH57EP / DMR-EH57EE / DMR-EH575EG

11.3. Analog Audio Block Diagram

MAIN P.C.B.
QR4002
(AUDIO MUTE DRIVE)
FROM
XTMUTE
TIMER
IC7501- 65
SECTION
Q54401,
Q4060
FROM
XDMUTE XDMUTE
DIGITAL
IC54402- 16 DRIVE
P.C.B.
P59001 P7402 MIX R OUT DM
FROM 41
DIGITAL P.C.B.
P59001 P7402 MIX L OUT DM
39
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
JK3801
FRONT INPUT JACK
3
LINE
2
(Rch)
1
AV3
AUDIO
(FRONT)
5
LINE
(Lch/MONO)
4
(EE) only
JK3001
REAR JACK
20
AV4
R IN
AV4 21
(REAR)
AUDIO
17
AV4
L IN
18
DMR-EH57EE/EP, EH575EG
DMR-EH57EC
TU7802 TU7801
U/V TUNER U/V TUNER
SIF OUT 7
FROM
P59001 P7402 IEC OUT
DIGITAL
44
P.C.B.
D4005 Q4006
MUTE
Q4007
MUTE
D4006 Q4009
MUTE
Q4008
MUTE IC3001
(AUDIO SIGNAL PROCESSOR)
IC4009
(BUFFER)
2 1 56
6 7 64
52
60
53
61
50
58
51
59
IC7301
(NICAM/A2)
AUDIO MONO
7 38 R OUT 2 54
OUT IN
SIF OUT 6 25 SIF L OUT 1 62
(SA1R)
a
DAC Rch
b
c LPF
DAC Lch
d
e
OUTPUT
SELECT SWITCH
(SA3R) (SA4R)
AV1 Rch
a a
b b
AV1 Lch
c c AGC
d d
AV2 Rch
e
AV2 Lch
(SA18R) (SA2R)
BUFF.
AV4
a
b
c LPF
TUN
d
e
AV3 Rch
AV3 Lch
(SA2L)
a
b
c LPF
d
e
OUTPUT
SELECT SWITCH
(SA3L) (SA4L)
AV4 R IN a a
b b
c c AGC
(SA18L)
d d
AV4 L IN BUFF. e
AV4
TUN
(SA1L)
a
b
c LPF
d
e
TUN Rch
IIC BUS
TUN Lch
LOGIC
48
:REC SIGNAL :PB SIGNAL
MIX L OUT2
MIX R OUT2
DMR-EH57EE
BUFF.
AV1 Rch AUDIO OUT Ch2(R)
MUTE 72
AUDIO OUT Ch1(L)
ADC Rch
ADC Rch
79
AMP
BUFF.
AV2 Rch AUDIO OUT Ch2(R)
MUTE 74
AUDIO OUT Ch1(L)
BUFF.
AV2 Lch
MUTE 73
AADC R
ADC Lch AADC L
ADC Lch
78
AMP
BUFF.
AV1 Lch
MUTE 71
SCL
88
SDA
89
5V
2.3V
1.0V
DMR-EH57EC/EP/EE,EH575EG
Analog Audio Block Diagram
JK3001
REAR JACK
16 17
LINE OUT
(L)
18
OUT
19 20
LINE OUT
(R)
21
DMR-EH57EC/EP, EH575EG
JK3901
21 PIN JACK
1
AV1
(TV)
3
1
AV2
(DECEODER/EXT)
3
P7402 P59001
31
TO
DIGITAL P.C.B.
P7402 P59001
29
IIC CLK
29 FROM
IC7501-
TIMER
IIC DATA
SECTION
IC7501- 30
IC4901
OPTICAL
(DIGITAL AUDIO OUT)
1