JVC HR-S2902US, Service Manual, Page: 53 / 68

WF3
WF5
WF6
WF2
WF1
WF7
WF4
R L
R L
R L
6
5
CN2001 CN2002
Q2051
Q2052-
Q2055
T2051
EQ
P
R
PRE
AMP
REC
ON
REC
VCA
DET
FIL
TER
FIL
TER
TRANS
OSC
PO
WER
SW
TO SYSCON
3
0
+
-
2 1
A.MUTE
SP
ON
A.MUTE(H) N.REC(H)
A.
ERASE
REC/PB F.
ERASE
5 6
A/C
HEAD
2
1
N.REC_ST(H)
62
1
3
7
9
EP
( LP
)
ON
94 95 96 97 98
FULL
ERASE
HEAD
CN1
J2 REAR
OUT
+
3 1
NO
T
USED
2
1
IC2201
61
NORMAL
OUT
62
NORMAL
IN
2
53
LINE
OUT
( R
)
57
LINE
OUT
( L
)
FMA
CH1
A
UDIO HEAD
U
.DR
UM
CN1
FMA
CH2
J7101
8 6
J7101
7 5 3 4
9
EXT1
IN
( R
)
14
EXT1
IN
( L
)
22
CH1
21
COM
24
CH2
48
SIF
IN
36
MUTE
CTL
Q2201-
Q2204
MUTE
CONTR
OL
I2C
CLK
I2C
D
A
T
A
43
DA
TA
42
CLK
30
PB
FM
IN
H.REC_ST(H)
A
UDIO
( R
)
A
UDIO
( L
)
1 2 3
J1 REAR
IN
A
UDIO
( R
)
A
UDIO
( L
)
R L
10
15
EXT2
IN
( R
)
EXT2
IN
( L
)
MAIN
( VIDEO/A
UDIO
,
FMA/DEMOD
, TERMINAL
)
FR
ONT
A
UDIO
IN
( R
)
FR
ONT
A
UDIO
IN
( L
)
PRE
OUT
29
7 8 9 3 4
4 3
TO TUNER
SIF
IC1 (VIDEO/N.A
UDIO SIGNAL PR
OCESSOR)
PO
WER
SWITCH PO
WER
AMP
FL
Y_REC_ST(H)
FL
Y_REC(H)
TRANS
OSC
PO
WER
SW
B2051
6 4
FULL_E.ON(H)
ONL
Y USED FOR
FL
YING ERASE
MODEL
OPEN
SHOR
T
B2051
WITHOUT FL
YING ERASE MODEL
WITH FL
YING ERASE MODEL
59
RFC_OUT
RF_A
UDIO
27
AFF
28
ENV
A.ENV/ND(L) A.FF
TP2253
A.PB_FM
SW
Q2062 Q2063 Q2061
T2052
10 11
F
LY.
E
FL
YING ERASE
Q401 Q402
Q403-
Q405
ONL
Y USED FOR
FL
YING ERASE MODEL
Q2001- Q2003
ONL
Y USED FOR
REAR1 INPUT MODEL
9
10 11 12 13 14
9
10 11 12 13 14
WF2-1
REC 4.0 Vp-p
0.1 V/0.2 msec/DIV
WF2-2
PB 1.1 Vp-p
20 mV/0.2 msec/DIV
WF1
REC 0.47 Vp-p
10 mV/0.2 msec/DIV
WF3
IC2201-21
REC 1.0 Vp-p
50 mV/2 msec/DIV
WF4
PB 0.6 Vp-p
20 mV/0.2 msec/DIV
IC2201-53
IC2201-53
WF5
REC/PB 1.5 Vp-p
50 mV/2 msec/DIV
WF6
REC 0.5 Vp-p
10 mV/0.2 msec/DIV
IC1-6
IC1-2
IC2201-9
TP2253
A.PB.FM
REC 2 Vp-p
50 mV/0.2 msec/DIV
WF7
IC1-98
D C B A
4
5
3
2
1
4.16 AUDIO BLOCK DIAGRAM
4-32