Audio Block Diagram - JVC HR-J691U Service Manual

4.17

AUDIO BLOCK DIAGRAM

MAIN ( VIDEO/AUDIO , FMA/DEMOD, TERMINAL )
0 3
J7101
FRONT
8
R
AUDIO IN ( R )
7
6
J7101
FRONT
5
L
AUDIO IN ( L )
4
3
J2
Q2201- Q2204
REAR OUT
6
R R
AUDIO ( R )
MUTE
4
CONTROL
L L
AUDIO ( L )
1
TO
TUNER
RF AUDIO
COMP
SIF
Note : For the waveforms in this block diagram, refer to page 4-22.
WF1
9
EXT1 IN ( R )
22
CH1
21
COM
24
CH2
14
EXT1 IN ( L )
WF3
30
WF2
PB FM IN
29
PRE OUT
53
LINE OUT ( R )
42
CLK
57
43
LINE OUT ( L )
DATA
45
59
fsc_IN
RFC_OUT
36
48
MUTE CTL
SIF IN
62
61
NORMAL IN NORMAL OUT
IC2201
WF6
NOT
WF5
USED
53 64 63 62 61
DET
R
VCA P
REC
EQ
IC1
( VIDEO/N.AUDIO SIGNAL PROCESSOR )
TP2253
WF4
A.PB.FM
NOT
USED
X2
78 42 40
A.MUTE
SP ON
95
FILTER
96
-
+
PRE AMP
97
REC ON +
98
EP ( LP ) ON
99
FILTER
WF7
4-29 4-30
U.DRUM
CN1
7 9
10
8
9 11
12
TO
SYSCON
H.REC ST ( H )
I2C CLK
I2C D ATA
A.MUTE ( H )
N.REC ST ( H )
N.REC ( H )
POWER
Q2052-Q2055
SW
OSC
Q2051
FULL ERASE HEAD
CN2002
5
2
TRANS 6
1
T2051
1 2
A/C HEAD
CN2001 CN1
3 4
4 3
2 6
1 7
E. & O.E No.82904 HR-J691U/J691U(C)/J694U/J695U(C)/J698U(C)
AUDIO HEAD
9
FMA CH1
10
11
FMA CH2
12
F. ERASE
A. ERASE
REC/PB
(VP)-V15D1