JVC HR-XV31EK, Руководство по обслуживанию

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2-43 2-44
Y
Y
C
C
Y
IF_SEL_YV_IN
FROM_SUB_EMPH
j
REC COLOR
c
d
b
a
n
f
e
I2C CLK
I2C DATA
Fsc
V FROM AV
Y TO AV
FRONT_V_IN
PB COLOR
TO_SUB_EMPH
Y TO SUB
SYNC_OUT
VHS(H)
0 3 MAIN (S-SUB,TERMIANL)
h
g
i
k
l
m
I2C_DATA_AV
I2C_CLK_AV
C
Y
WF16
WF11
WF10
WF9
WF18
WF19
WF17
28
27
26
25
17
16
15
24
21
20
18
43
44
45
46
47
49
50
51
52
53
54
56
14 12 13 10 9 7 6 8 5 3 1
42 41 40 39 38 36 33 35 32 30 29 31
SW5V
FILTER FILTER
22
+
37
+ +
4
USED
NOT
55
USED
NOT
FIL FIL
YFBC
TRAP
COMP
YMUTE VMUTE CMUTE
ATT
+
DIG OSD
C MUTE
ATT ATT
CL2 CL2
POSLPF1 POSLPF2
+1dB
BF BF
+6
VFBC
CK
NC
VCA
PRE
LPF2
PRE
LPF1
BG CR ADJ ATT
GCL
SSEP
ATT
SUB-EMPH
LIM2
DC
LIM1
REGEN
SP
EP
REC
PB
REC
PB SW11
DIG OSD
DIG OSD
SW10
CH1-C
CH2-C
SW17 SW1
PB
REC
SW19
REC PB
SW2
DIG DIG
SW3
PB*+1dB
PB*0dB
SW4 REC+
SW5
CONV CONV
DIG DIG
SW8
CONV CONV
SW7
OSD OSD
SW14
SW13
OSD OSD
FIL DIG
PB REC
SW12
SW9
+
+
SW16
OSD OSD
SW15
OSD
FIL DIG
OSD
䌒䌅䌃䋪
SW6
EXT IN
SW18
䌒䌅䌃䋪
EXT IN VIDEO
YC MUTE Y-OUT C-OUT
V-OUT
REC PB
REC PB
REC
ACC:ON ACC:OFF
D13
D1*D14*D15
PB+
VIDEO
NC
OUT
D15
IN PB-Y
PB
SVHS
NVHS
VHS[H]
SP[H]
PB[H]
PAL[H]
DATA CLK
CHARA_DATA
D9
+
+
EQ
EQ
+
+
WF12
WF15
WF14
C
Y
C
Y
C
Y
C
C
IC501
WF8
C C
Y Y
Y
C
BUF
Y
19
YVIN FSC_IN CIN
10 5
REC PB
BUF
Q1204
COMB
PB
BUF
Q1205
Q1203
1
3
5
7
12
11
9
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
I2C_DATA
I2C_CLK
C_FROM_DIGI
Y_FROM_DIGI
V/Y_TO_DIGI
C_TO_DIGI
Fsc
VREF
40
VR1201
D/A LEVEL ADJ
USED
NOT
Y
1 3 5 7 9 11
C
USED
NOT
Y/C
(
& SEP MIX )
TO
SYSCON
12
C
J7194
FRONT
S IN
CN7191
10
8
SW/JACK 3
2
4
CN7104
Y
FRONT_Y_IN
FRONT_C_IN
6
7
6
CN7102
9
REAR2_C_IN
v
VHS_C_OUT
w
1
CN7103
3
VHS_Y_OUT
x
DAC1
y
DAC0
z
DAC2
aa
DAC3
ab
4
8
9
10
1
2
6
2
4
1
IC7102
FRONT_Y(H)
CHARA_DATA
V FROM OSD
I2C_CLK
p
I2C_DATA
q
4
5
TO
ON SCREEN
USED
NOT
USED
NOT
5 7
11
13
2
4
6
8
CN7301
C/Cv/Y
Y/G/Cv
Cb/B/Cv
Cr/R/C
TO
DVD UNIT
CN502
TO
TUNER
Y
Y
Y
Y
C
Cb
Cr
Y
C
C
Cr
Cb
C
Y
Y
Y
C
C
C
C
Y
Y
Y
Y
Y
Y
C
C
C
Y
Y
Y
C
Y
C
Y
Y
C
C
Y
C
C
C
C
Y
C
C
Y
Y
C
Y
C
C
C
C
CN501
FRONT_V_IN
J7191
FRONT
VIDEO IN
3
2
4
1
WF20
C
WF13
Y
VHS MODEL
ONLY USED FOR
S-VHS MODEL
ONLY USED FOR
S-VHS MODEL
ONLY USED FOR
S-VHS MODEL
IC501-5
REC/PB 0.6Vp-p
0.2V/20µsec/DIV
WF9 IC501-12
REC/PB 1.7Vp-p
0.5V/20µsec/DIV
WF10 IC501-14
REC/PB 1.45Vp-p
0.5V/20µsec/DIV
WF11 IC501-16
REC/PB 2.3Vp-p
0.5V/20µsec/DIV
WF12 IC501-18
REC/PB 2.3Vp-p
0.5V/20µsec/DIV
WF13 IC501-36
REC 0.39Vp-p
0.2V/20µsec/DIV
WF14 IC501-40
REC 0.66Vp-p
0.2V/20µsec/DIV
WF15
IC501-43
REC 0.5Vp-p
0.2V/20µsec/DIV
WF17 IC501-47
REC 1.7Vp-p
0.5V/20µsec/DIV
WF18 IC501-49
REC 0.66Vp-p
PB 0.6Vp-p
0.2V/20µsec/DIV
WF19 IC501-54
PB 1.6Vp-p
0.5V/20µsec/DIV
WF20 IC501-47
PB 1.3Vp-p
0.5V/20µsec/DIV
WF18
IC501-3
REC/PB 0.66Vp-p
0.2V/20µsec/DIV
WF8 IC501-42
PB 1.75Vp-p
0.5V/20µsec/DIV
WF16
VIDEO BLOCK DIAGRAM(1)
TU_VIDEO
V_TO_OSD
o
VHS_V_OUT
r
TU_VIDEO
s
t
u
RF_V_OUT
IF_SEL_YV_IN
RF_VIDEO
www.freeservicemanuals.info 3/7/2017
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