JVC HR-S6850MS, Руководство по обслуживанию

Страница: 62 / 84

4-49 4-50
VIDEO BLOCK DIAGRAM
H G F E D C B A
4
5
3
2
1
4.26
C C
Y
Y
Y
C
Y
C
Y
C
C
Y
Y C
C
Y
C
Y
Y
Y
C
Y
C
Y
C
Y
Y
Y
C
Y
C
Y
Y
Y
C
C
Y
C
Y
Y
Y
C
C
Y
C
C
Y
C
WF1
WF2
WF3
WF4
Y
C
Y
C
C
C
C
C
C
C
PRE LPF DIGI
Y/C IN
V3/V4
)
SWITCH
(Y/C
IC501
56
1
ATT
2
AGC DET
S.SEP
AT
T
PB
Y1 Y3
3 4 5
ATT
Y2
54
53
51
52
50
49
48
47
COMP IN
AGC
REC
GCL
ATT
CLAMP
V5
EXT PB C
EXT PB C
PRE LPF
PB
REC
EXT PB
Y
ATT
USED
ATT
S1/S2 DET
6 7 8
NOT
C3
C1
C2
V3
9 10 11 12 14
ATT
Y FBC
Y MUTE
D16
15
V FBC
N.C.
REC
V4
C.K.
PB*D15
BB
BB
BB
BB
PB
TRAP
CONV
VCA
PB*CONV
REC
CONV
21
V MUTE
C MUTE
BIAS
D7&D8
ATT CLAMP
USED
NOT
17
18
20
19
CLAMP
FILTER FILTER
23
24
25
DIGI/PB
43
45
PRE LPF
CLAMP
PRE LPF
42
CR
ADJ
41
PB
EXT PB Y
DIGI/PB
ATT
REC
IIC LOGIC
39
CLK
40
DATA
38
+
TERMINAL(S-SUB) 0 6
CLAMP
REC
DIGI
PB*CONV
CONV
CONV
36
N/S-LPF
REC PB
REC
PB
34 33
EE/PB
32
REC
EQ
REC
PB
CLAMP
PB
SP/EP(LP)
VHS
S-VHS
31 30 29
28
27
16
PB REC
NON LINEAR
PROCESSOR
6
5
PB
REC
SP
SP
10
11
12
EQ
EQ
V_FROM_OSD
C_OUT
Y_OUT
REAR2_C_IN
REAR2_Y_IN
REAR1_C_IN
REAR1_Y_IN
36
37
38
39
34
35
33
LPF BUF
IC502
SVHS-ET S-VHS
1
2
(
EE(L)
&
18
SP
SP
17
SWITCH)
EQ
EQ
Y
19
YVIN FSC_IN CIN
10 5
REC PB
BUF
Q1206
BPF
COMB
PB
BUF
Q1205
7
9
9
10
5
7
4
7
6
5
1
3
5
Q1203
9
1
1
2
CN911
1
3
5
7
12
11
9
BPF
com/CNR
3L
Y/C
PS
IC1201 (
COUT
YOUT
IIC_DATA
IIC_CLK
PB
COMB
REC
REC
44
41
35
34
& SEP MIX )
0 5
BUF
Q1202
DIGITAL 2D
CN1201
19
V_TO_OSD
CHARA_DATA
Y_TO_AV
V_FROM_AV
REC_COLOR
16
29
30
15
14
Y_FROM_DIGI
C_FROM_DIGI
PB_COLOR
MAIN_ALC_DET
P.MUTE(L)
Y_TO_SUB
FRONT_V_IN
25
28
27
26
24
20
21
I2C_DATA
I2C_CLK
Fsc
C_TO_DIGI
Y/V_TO_DIGI
17
18
13
12
I2C_DATA_A/V
I2C_CLK_A/V
C_FROM_DIGI
Y_FROM_DIGI
V/Y_TO_DIGI
C_TO_DIGI
Fsc
10
8
9
6
3
4
5
USED
NOT
USED
NOT
USED
NOT
C
USED
NOT
FRONT_Y_IN
FRONT_C_IN
31
32
12
V_FROM_OSD
23
CN912
CN915
3
EE(L)
11
YVIN FSCIN
IC1401
BPF
BUF
com/CNR PS
REC
PB
24
29
31
CIN
REC PB
COMB 3L
PB
BPF
Q1418
BUF
BUF
Q1417
LPF
19
17
BUF
Q1406
(Y/C SEP & MIX )
REC
0 5
COUT
Q1402
3D/TBC(2M)
YOUT
Y COMB
SDATA
SCLK
11
12
1
3
5
7
9
12
14
15
11 4
5
3
2
1
6
8
V.REF
D.FF
I2C_DATA
I2C_CLK
C_FROM_DIGI
Y_FROM_DIGI
V/Y_TO_DIGI
9
10
C_TO_DIGI
Fsc
CN1401
7
8
DFFI
VR
6 7
EE(L)
Q1404 ES
(Only used for HR-S8850MS) (Only used for HR-S6850MS/S7850MS/S7851MS)
HR-S8850MS
LPF
VREF
40
VR1201
D/A LEVEL ADJ
VREF
21
VR1401
D/A LEVEL ADJ
R-Y
B-Y
COLOR
MULTI
DECODER
B-Y
12
R-Y
11
16
14
R-Y
B-Y
DL
ENCODER
C OUT
B-Y
3
PAL
R-Y
1
14
R-Y LEVEL
ADJ
B-Y LEVEL
ADJ
AMP
AMP
8 7
FROM_PS_C
TO_PS_C
TO_PS_Y
FROM_PS_Y
9 7 5 3
BUF EQ
BUF
BUF
IC1607
IC1605
VR1602
Q1610-
Q1612
S-P CONVERTER
VR1601
Q1607-
Q1609
IC1606
9
10
16
9
7
5
3
CN1601
Q1614
SYNC
SEP.
24
IC1601-
IC1604
Q1601
Q1605
CVBS
CN511
Note : For the waveforms in this block diagram, refer to page 4-41.
Q1419
ES
Q1414
ES
3
SECAM_PB_COLOR
22
HR-S7850MS
HR-S7851MS
HR-S8850MS