19.3. ANALOG AUDIO BLOCK DIAGRAM
ANALOG AUDIO
BLOCK DIAGRAM
XTMUTE
IC7501- 63
FROM
TIMER
SECTION
MUTE
CIRCUIT
QR4002-QR4005
Q4004
FROM
DIGITAL
P.C.B.
XDMUTE
IC4408- 4
P9001
P7402
12
12
41
10
10
39
P7412
P7412
P7402
CN9003
CN9003
P9001
FROM
FROM
BACKEND
DIGITAL
P.C.B.
P.C.B.
G_DT_IN_L_A
MIX R OUT DM
G_DT_IN_R_A
MIX L OUT DM
2
1
7
6
IC4009
(BUFFER)
MUTE
MUTE
Q4006
Q4007
D4002
MUTE
MUTE
Q4009
D4003
Q4008
56
64
IC3001
(AUDIO SIGNAL PROCESSOR)
(SA1R)
a
b
c
d
e
(SA3R)
a
b
c
d
e
52
60
DAC Rch
DAC Lch
AV1 Rch
AV1 Lch
53
AV2 Rch
61
AV2 Lch
2
6
2
6
JK3901
21 PIN JACK
AUDIO IN ch2(R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
AUDIO IN ch1(L)
(SA2R)
a
b
c
d
e
BUFF.
AV4
TUN
(SA5R)
50
AV3 Rch
OUTPUT
SELECT SWITCH
(SA4R)
a
b
c
d
3
2
1
5
4
LINE
(Rch)
LINE
(Lch/MONO)
AUDIO
JK7501
FRONT INPUT JACK
AV3
(FRONT)
AV3 Lch
58
(SA2L)
a
b
c
d
e
(SA3L)
a
b
c
d
e
(SA1L)
a
b
c
d
e
BUFF.
(SA5L)
TUN
AV4
59
63
55
AV4 Lch
3
1
2
LINE
(Rch)
LINE
(Lch)
AUDIO
JK3001
REAR INPUT JACK
AV4
(REAR)
AV4 Rch
51
TUN Rch
54
62
TUN Lch
38
25
2
1
R OUT
L OUT
MONO
IN
SIF
IC7301
P7411
P7411
2
PP7802
7
PP7802
21
22
13
PP7410
AUDIO
OUT
SIF OUT
76
RF OUT
7
18
AUDIO
IF
IN
OUT
DU7801
U/V TUNER
TUNER P.C.B.
MUTE
VCA
+
MIX
AGC
ADC Rch
AMP
LPF
BUFF.
MUTE
a
b
c
d
MUTE
BUFF.
LPF
MUTE
BUFF.
LPF
ADC Lch
AMP
AGC
MUTE
BUFF.
LPF
72
AV1 Rch
ADC Rch
79
AV2 Rch
74
AV2 Lch
73
ADC Lch
78
AV1 Lch
71
IIC CLK
IC7501- 28
IIC DATA
IC7501- 29
FROM
TIMER
SECTION
SCL
88
89
SDA
IIC BUS
LOGIC
JK3901
21 PIN JACK
1
3
AV1
(TV)
3
1
AV2
(DECEODER/EXT)
29
P9001
P7402
P9001
31
P7402
TO
DIGITAL
P.C.B.
7
6
5
LINE OUT
(L)
LINE OUT
(R)
JK3001
REAR JACK
AUDIO OUT Ch1(L)
AUDIO OUT Ch2(R)
MIX R OUT2
MIX L OUT2
AUDIO OUT Ch2(R)
AUDIO OUT Ch1(L)
AADC R
AADC L
36
P7402
P9001
FROM
DIGITAL
P.C.B.
2
4
IC4901
(OPTICAL AUDIO BUFFER)
JK3903
OPTICAL
(DIGITAL AUDIO OUT)
7
IEC OUT
:REC SIGNAL
:PB SIGNAL
4.5V
Max
5.6Vpp
2.3V
5V
1.0V
AV1
(TV)
(DECODER/EXT)
AV2
AUDIO SIGNAL
OUTPUT
SELECT SWITCH
(SA4L)
TU7801
PP7801
3
1
6
5
7
4
2
IC7801
X7801
DUAL STAGE IF AMPLIFIER
ACOUSTIC WAVE
FOR CABLE TUNERS
(SAW) FILTER
P7412
PP7802
P7412
PP7802
3
3
10
10
2
2
11
11
CN9003
P7411
CN9003
P7411
TO
BACK END P.C.B.
IF OUT [_]
IF OUT [+]
DMR-EH54DEG
DMR-EH54DEG
50
Summary of Contents for DMR-EH54DEG
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Page 73: ...22 EXPLODED VIEWS 22 1 CASING PARTS AND MECHANISM SECTION 73 DMR EH54DEG ...
Page 74: ...22 2 PACKING ACCESSORIES SECTION 74 DMR EH54DEG ...