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DMR-EH67GN / DMR-EH67GC / DMR-EH67GCS
6MHz
91
BIAS
BPF
+
6MHz
93
CLAMP
LPF
CLAMP/
95
BIAS
97
CLAMP
CLAMP/
99
BIAS
AV1 V
33
CLAMP
DT Y IN
47
CLAMP
+
DT C IN
48
BIAS
AV3 Y
41
CLAMP
AV3 C
45
BIAS
AV3 V
37
CLAMP
AV4 V
35
CLAMP
AV4 Y
39
CLAMP
AV4 C
43
BIAS
(SW10)
BIAS
b
AV2 R/C
1
CLAMP
a
AV2 G
3
CLAMP
AV2 B
5
CLAMP
AV2 V/Y
31
CLAMP
IC3001
VIDEO/AUDIO PROCESSOR
IC-DETAIL BLOCK DIAGRAM
(SW1)
(SW2)
COMP
6MHz
R-Y
a
a
OUT
12MHz
b
b
7
c
c
(SW3)
AV1
a
R-C
b
OUT
9
c
d
(SW4)
COMP
6MHz
B-Y
a
OUT
12MHz
b
11
c
AV1
B
OUT
12
(SW6)
(SW5)
COMP
6MHz
a
Y
a
b
OUT
12MHz
b
c
14
c
d
15
AV1
G
OUT
17
20
(SW17Y)
a
(SW7)
Y
a
OUT
19
b
(SW17C)
b
a
(SW8)
C
a
OUT
b
22
(SW17V)
b
a
(SW9)
a
V
b
OUT
23
b
24
SV1
a
AV1
b
V/Y/C
c
OUT
d
26
e
SV2
a
AV2
V
b
OUT
c
28
d
e
DT_Y
DT_C
C-ADC
AV1 V
OUT
81
AV3 Y
AV3 C
V/Y
AV3 V
ADC
ADC
AV4 V
OUTPUT
OUT
AV4 Y
SELECT
83
SWITCH
AV4 C
CIRCUIT
AV2 R/C
AV2 V/Y
TUNER V
SLICER
85
SCL
88
IIC BUS
LOGIC
SDA
89
TUNER
V
CLAMP
30
(SA1R)
a
DAC Rch
56
b
c
LPF
DAC Lch
64
d
e
OUTPUT
SELECT SWITCH
(SA3R)
(SA4R)
AV1 Rch
52
a
a
b
b
AV1 Lch
60
c
c
AGC
d
d
AV2 Rch
53
e
AV2 Lch
61
(SA18R)
(SA2R)
BUFF.
AV4
a
b
c
LPF
TUN
d
e
AV3 Rch
50
AV3 Lch
58
(SA2L)
a
b
c
LPF
d
e
OUTPUT
SELECT SWITCH
(SA3L)
(SA4L)
AV4 Rch
51
a
a
b
b
AV4 Lch
c
c
AGC
59
(SA18L)
d
d
BUFF.
e
AV4
TUN
(SA1L)
a
b
c
LPF
d
e
TUN Rch
(SA17R)
(SA17L)
54
TUN Lch
62
DT R IN
55
DT L IN
63
RF OUT
+
76
MUTE
VCA
MIX
62
IC4001
AU +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
5
VOUT
NR
1
BUFF.
AV1 Rch
MUTE
72
ADC Rch
ADC Rch
79
AMP
BUFF.
AV2 Rch
MUTE
74
BUFF.
AV2 Lch
MUTE
73
ADC Lch
ADC Lch
78
AMP
BUFF.
AV1 Lch
MUTE
71
IC3001
IC4001
DMR-EH67GN/GC/GCS IC-Detail Block Diagram
4
VIN
IC
GND
H
:ON
2
3
Detail Block Diagram
Detail Block Diagram
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