Audio Block Diagram - JVC HM-DH30000U Service Manual

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4.37

AUDIO BLOCK DIAGRAM

TO
TUNER
5
DEMOD(R)
DEMOD(L)
3 6 A J CK
FRONT IN
CN901
CN7191
J7193
F.AUDIO(R)
2 10
AUDIO(R) IN
F.AUDIO(L)
4 8
4
J7192
AUDIO(L) IN
TO
SYSCON
IND(L)
IND(R)
TO DIGITAL
(AUDIO AD/DA)
CN9801
CN7107
D/A_OUT(R) 11
D/A_OUT(L)
9
3
A/D_IN(R) 7
A/D_IN(L)
5
0 6 TERMINAL-NTSC
J7106
BS DECODER
5
L
A_IN(L)
4
3
8
R
A_IN(R) 7
2
6
J7102
REAR_IN
5
L
A.IN(L) 4
3
8
R
A.IN(R)
7
6
J7114
REAR_2_OUT
4
A.OUT2(L)
3
6
A.OUT2(R)
CN7101 CN7106
5
15
J7110
14
REAR_1_OUT
1
4
L 13
A.OUT1(L)
12
3
10
6
R
9
A.OUT1(R)
5
Note : For the waveforms in this block diagram, refer to page 4-67.
A
0 3 MAIN ( VIDEO/AUDIO, AUDIO I/O, MAIN TERMINAL )
IC2605
13
R IC2606 7
14 5
R
L 12
NOT
AMP
3 1
USED L
1
15
2
NOT
USED 10,11
A.IN_SEL_C
+ 77
NOT 78
USED
79
R
NOT
WF1 80
USED
81
68
67
NOT
USED
57
53
L
WF2
R
62
R
64
R
61
L
63
L
52
R
L
WF3
65
L
A.IN_SEL_A 66
R
A.IN_SEL_B
IC2603
82
9
11
10
NOT
12
IC2604 5 R
7 13 USED
71
15
R
1 AMP 3
72
L
14
R
73
NOT
74
USED
4
75
1
L
3
+
2
L
5
L
AUDIO_CTL1
AV2THROUGH(L)
IC2601
50
9
11
R
10
12
IC2602 48
7 5
13
15
R
AMP
1 3
14
R
WF4
4
L
1
3
2
L
5
L
L
R
L
R
L
R
B C
IC1
( VIDEO & AUDIO SIGNAL PROCESSOR )
TU
FR
INPUT
L1 SELECT
( R-CH )
L2
DEC(R)
DEC(L)
NOISE
R
MIX
EVR REDUCTION
R
MIX
( R-CH )
NA IN
NA PB
LINE OUT(R)
R CH
R
OUTPUT R CH
R
LINE OUT(L)
SELECT
L CH
L L
L CH
NA REC
NORMAL
INPUT
LOG(L) SELECT
NOISE L
LOG(R) EVR REDUCTION
L
( L-CH )
NA EXT IN
DET
TU
FR INPUT
SELECT
L1
( L-CH )
L2
VCA
HIFI
INPUT
SELECT L
HIFI
REC
EQ
Published in Heiloo Holland
D E
4-71 4-72
92
A.MUTE
93
A.FF
60
DA A T
59
LOGIC
CLK
ENV DET
94
REC/PB
+
MON
NOR DET
TP2253
A.PB FM
87
SW
Q2251
PRE/REC AMP
WF7
98
HIFI
CH1
FM
97
COMMON
96
CH2
WF6
SP ON
115
116 FIL TER
P
-
+
Q2052-
POWER
R PRE AMP
Q2054
SW
+ Q2051
117
REC ON
OSC
118 5
6
TRANS
EP(LP) ON
T2051
119
FIL TER
WF5
F
29/11/2016
A.MUTE(H)
A/HS2.FF
I2C_DATA_A/V
I2C_CLK_A/V TO
SYSCON
A.ENV/ND(L)
H.REC_ST(H)
N.REC_ST(H)
N.REC(L)
U.DRUM
AUDIO HEAD
CN1
9 9
9
FMA_CH1
10 10
10
11 11
FMA_CH2
11
12 12
FULL ERASE HEAD
CN2002
1
. F ERASE
2
1 2
A/C HEAD
CN2001 CN1
4 4
A. ERASE
3 5
2 6
REC/PB
1 7
G H