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DMR-EH67GN / DMR-EH67GC / DMR-EH67GCS
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
JK3001
REAR JACK
20
AV4
R IN
AV4
21
(REAR)
AUDIO
17
AV4
L IN
18
TU7802
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)
DAC Rch
2
1
56
DAC Lch
6
7
64
AV1 Rch
52
AV1 Lch
60
AV2 Rch
53
AV2 Lch
61
AV3 Rch
50
AV3 Lch
58
AV4 R IN
51
AV4 L IN
59
IC7301
(NICAM/A2)
TUN Rch
R OUT
2
54
TUN Lch
25
SIF
L OUT
1
62
(SA1R)
a
BUFF.
b
AV1 Rch
c
LPF
MUTE
d
e
OUTPUT
SELECT SWITCH
(SA3R)
(SA4R)
a
a
b
b
ADC Rch
ADC Rch
c
c
AGC
AMP
d
d
e
(SA18R)
(SA2R)
BUFF.
AV4
a
BUFF.
b
AV2 Rch
c
LPF
MUTE
TUN
d
e
(SA2L)
a
BUFF.
b
AV2 Lch
c
LPF
MUTE
d
e
OUTPUT
SELECT SWITCH
(SA3L)
(SA4L)
a
a
b
b
ADC Lch
ADC Lch
c
c
AGC
AMP
(SA18L)
d
d
BUFF.
e
AV4
TUN
(SA1L)
a
BUFF.
b
AV1 Lch
c
LPF
MUTE
d
e
IIC BUS
LOGIC
48
:REC SIGNAL
:PB SIGNAL
JK3001
REAR JACK
MIX L OUT2
16
18
MIX R OUT2
19
21
JK3901
21 PIN JACK
AUDIO OUT Ch2(R)
72
1
AV1
(TV)
AUDIO OUT Ch1(L)
3
79
AUDIO OUT Ch2(R)
74
1
AV2
(DECEODER/EXT)
AUDIO OUT Ch1(L)
3
73
AADC R
P7402
P59001
31
AADC L
P7402
P59001
78
29
71
SCL
IIC CLK
88
29
IC7501-
SDA
IIC DATA
89
IC7501-
30
5V
2.3V
1.0V
IC4901
OPTICAL
(DIGITAL AUDIO OUT)
1
DMR-EH67GN/GC/GCS
Analog Audio Block Diagram
LINE OUT
(L)
OUT
LINE OUT
(R)
TO
DIGITAL
P.C.B.
FROM
TIMER
SECTION
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