JVC HR-S9850EK, Руководство по обслуживанию

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4-53 4-54
(VP)-V14S35
E & O.E. No.82888
E & O.E. No.82889
4.29 AUDIO BLOCK DIAGRAM
SELECT
OUTPUT
4
66
AV2 IN/DECODER
)
A.OUT
A.GND
R
A.OUT
A.GND
A.OUT
R
A.OUT
J902
(
A.IN
2
4
A.IN L
(
6
2
A.OUT(L)
J912
REAR
A.OUT(R)
1
2
1
J913
REAR
A.IN(
2
1
)
R
1
( )
L (
3
)
CN907
6
3
2
5
4
CN917
7
8
) (R
)
L
(
)
1
3
IN
48
50
+
74
75
73
72
L2
L1
FR
71
82
NA EXT
TU
SELECT
INPUT
SELECT
(L-CH)
INPUT
TERMINAL
)
3
JACK
A.IN L
(
6
0 6
(
(
AUDIO
AUDIO
FRONT
J7192
3
)
L
)
R
2
1
IN
2
AV1 IN/OUT
J901
SYSCON
TO
IND(L)
IND(R)
F.AUDIO(L)
F.AUDIO(R)
9
11
6
CN7191
3
1
CN902
TUNER
TO
DEMOD(L)
TU_AUDIO
DEMOD(R)
67
L
R
64
52
LOG
65
R LOG( )
L
( )
63
61
REC NA
LINE OUT (
53
62
LINE OUT (
57
MIX
IN NA
NORMAL
INPUT
SELECT
)
)
MIX
77
+
81
L2
68
L DEC ( )
R DEC ( )
80
79
78
L1
FR
TU
(R-CH)
SELECT
INPUT
IC1
(VIDEO
MAIN (VIDEO/AUDIO, CONNECTION) 0 3
3
CN2002
EQ
REC
HIFI
HIFI
VCA
)
DET
L-CH
(
EP(LP) ON
ON REC
R
P
AMP
+
-
PRE
ON SP
TRANS
+
FILTER
119
117
118
FILTER 116
115
Q2061
T2052
4
6
OSC
A/C
1
2
1
4
3
6
7
4
5
CN2001 CN1
HEAD
2
TRANS
ERASE FULL
2
1
4
5
HEAD
T2051
A.ERASE
REC/PB
F.ERASE
CN2051
A.MUTE
AMP
R CH
EVR
L CH
L CH
REDUCTION
NOISE
NA PB
R CH
EVR REDUCTION
NOISE
)
R-CH
(
HIFI
CH1
FM
CH2
COMMON
MON
PRE/REC
NOR DET
PROCESSOR SIGNAL AUDIO &
REC/PB
DATA
ENV
LOGIC
DET
+
CLK
)
POWER
Q2251
97
96
Q2062
A.FM
TP2253
98
87
SW
POWER
SW
POWER
SW
SW
Q2052-
Q2054
59
94
60
93
92
A.FF
9
AUDIO ERASE
12
11
10
2
1
6
6 4
11
10
Q2051
OSC
12
11
10
9
U.DRUM
9
14 14
13
13
12 13
FMA_
FLY.E
FMA_
HEAD AUDIO
CH2
CH1
I2C_CLK_A/V
N.REC_ST(H)
H.REC_ST(H)
A.ENV/ND(L)
FULL_E_ON(L)
N.REC(L)
FLY_REC(H)
FLY_ON(H)
SYSCON
TO
I2C_DATA_A/V
A.FF
A.MUTE(H)
NOT
USED
AMP
CN1
FLYING
ERASE
Q403-
Q405
Q401,
Q402
R
L
R
R
L
L
L
R
R
L L
R
L
R
R
L
L
R
R
L
R
L
L
L
R
L
R
L
R
R
L
L
L
L
R
R
R
R
WF1
WF2
WF3
WF4
WF7
WF6
WF5
CN2052
J7193
1
WF6
IC1-97
REC 1.1 Vp-p
50 mV/5 msec/DIV
WF2 IC1-62
REC/PB 0.9 Vp-p
50 mV/0.5 msec/DIV
WF3 IC1-52
REC 0.35 Vp-p
10 mV/0.5 msec/DIV
WF4
IC1-48
PB 0.58 Vp-p
10 mV/0.5 msec/DIV
WF5 IC1-119
REC 0.7 Vp-p
50 mV/0.5 msec/DIV
WF1 IC1-80
REC 0.62 Vp-p
20 mV/0.5 msec/DIV
WF7
TP2253
A.FM
PB 0.5 Vp-p
50 mV/5 msec/DIV