Panasonic DMR-EH65EC Service Manual page 137

M G_AADC_L_A
M G_AADC_R_A
M G_CIN_DM_A
M G_V_YIN_DM_A
T G_SLICER_A
T G_CSYNC_A
T G_IIC_CLK_A
T G_IIC_DATA_A
T SYNC_DET
M G_COUT_DM_A
M G_YOUT_DM_A
M G_BPBOUT_D_A
M G_RPROUT_D_A
M
M G_GPYOUT_D_A
M PS_11R6V
T AV2_BLANKING
IC3001
VIDEO/AUDIO PROCESSOR
IC-DETAIL BLOCK DIAGRAM
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
R4003
R4005
LB3001
PS_5V
(SW1) (SW2)
COMP
6MHz
R-Y
a a
OUT
12MHz b b
c c
(SW3)
AV1
a
R-C
b OUT
c
d
(SW4)
6MHz COMP
B-Y
a
OUT
12MHz b
c
AV1
B
OUT
(SW6)
(SW5)
COMP
6MHz a
Y
a b
OUT
12MHz b c
c d
AV1
G
OUT
AV4
(SW7)
Y
a OUT
b
AV4
(SW8)
C
a
OUT
b
(SW9)
AV4
a
V
OUT
b
SV1
a
b AV1
V/Y/C
c
OUT
d
e
SV2
a AV2
V
b
OUT
c
d
e
C-ADC
AV1 V OUT
AV3 Y
AV3 C
V/Y
AV3 V
ADC
ADC
AV4 V
OUTPUT
OUT
AV4 Y SELECT
SWITCH
AV4 C
CIRCUIT
AV2 R/C
AV2 V/Y
TUNER V SLICER
SCL
IIC BUS
LOGIC
SDA
TUNER
V
CLAMP
A B
TO A/V I/O
SECTION (1/2)
C4021
C4019
TL3001
R3006
R3976
R3975
R3007
C3025
R3009
C3027
C3028
C3029
C3024
C3031
C3026
7
9
11
12
14
DAC Rch
56
15
DAC Lch
64
17
20
AV1 Rch
52
19 AV1 Lch
60
AV2 Rch
53
AV2 Lch
22 61
(SA5R)
BUFF.
AV4
23
TUN
24
AV3 Rch
50
26
AV3 Lch
58
28
AV4 Rch
51
81
AV4 Lch
59
(SA5L)
BUFF.
83
AV4
TUN
TUN Rch
85 54
88
TUN Lch
89 62
RF OUT
30 76 MUTE VCA +
MIX
C D E F G H I J
80 78 72 71
79 77 76 75 74 73 70 69 68 67 66 65 64
81
82
83
84
VCC 5V
SLICER [81]C ADC
85
[82]V SYNC OUT
86
C SYNC OUT
[83]Y/V ADC
87 DET IN
88 SCL IN
89 SDA IN
IC3001
V DET OUT
90
91 ENC C IN
92 V DET FIL
ENC Y IN
93
[97]ENC G/Y IN
VCC [98]VGND
94
[99]ENC B/B-Y IN
95 ENC R/R-Y IN
[100]REG2.5
96 GND
97
98
99
100
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1
(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
(SA2R)
a
BUFF.
b
AV2 Rch
c LPF MUTE
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
d d
e
(SA1L)
a
BUFF.
b
AV1 Lch
c LPF MUTE
d
e
K L M AS N O
60 59 58 57
63 62 61 5
[53]AV2 RIN
[52]AV1 RIN
[51]AV4 RIN
[50]FRONT RIN
[33]AV1 V IN
[32]AV2 FB IN
[31]AV2 V/Y IN
[30]TUNER V IN
18 19 20 21 22 23 24 2
72
79
74
73
78
71