Panasonic DMR-EX77EG Service Manual page 62

DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB
6MHz
91 BIAS
BPF
+
6MHz
93 CLAMP
LPF
CLAMP/
95
BIAS
97 CLAMP
CLAMP/
99
BIAS
AV1 V
33 CLAMP
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
DAC Rch
56
15
AV1 DAC Lch
64
G
OUT
17
20
AV4
AV1 Rch
(SW7) 52
Y
a OUT
19 AV1 Lch
60
b
AV2 Rch
AV4
(SW8) 53
C
a
OUT
AV2 Lch
22 61
b
(SW9)
AV4
a
V
OUT
23
b
24
SV1
a
AV3 Rch
50
AV1
b
V/Y/C
c
OUT
d 26
e AV3 Lch
58
SV2
a AV2
V
b
OUT
c 28
d
e
C-ADC
AV4 Rch
AV1 V OUT
51
81
AV3 Y
AV3 C
V/Y AV4 Lch
AV3 V
ADC 59
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
TUN Rch
54
TUNER
TUN Lch
V
CLAMP 30 62
RF OUT
76
62
(SA1R)
a
BUFF.
b
c LPF MUTE
d
e
OUTPUT
SELECT SWITCH
(SA3R) (SA4R)
a a
b b
ADC Rch
c c AGC
AMP
d d
e
(SA5R) (SA2R)
BUFF.
AV4 a
BUFF.
b
TUN c LPF MUTE
d
e
(SA2L)
a
BUFF.
b
c LPF MUTE
d
e
OUTPUT
SELECT SWITCH
(SA3L) (SA4L)
a a
b b
ADC Lch
c c AGC
AMP
d d
e
(SA5L)
BUFF.
AV4
(SA1L)
TUN
a
BUFF.
b
c LPF MUTE
d
e
MUTE VCA +
MIX
DMR-EX77EG/EC/EC1/EB,EX87EG/EC/EC1/EB
IC4001
AU +5V SWITCHING REGULATOR
IC-DETAIL BLOCK DIAGRAM
5 4
VOUT VIN
IC
NR GND
H
1 2 3
AV1 Rch
72
ADC Rch
79
AV2 Rch
74
AV2 Lch
73
ADC Lch
78
AV1 Lch
71
IC3001 Detail Block Diagram
IC4001 Detail Block Diagram
IC-Detail Block Diagram
:ON