FUNAI DDVR-7530D, Service Manual

Page: 24 / 68

1-11-3
Audio Block Diagram
E8BA9BLA
REC AMP
100
3
AU
T
O
BIAS
2 1
+5V
+5V
Q404
Q406
BIAS OSC
Q403
Q401 (PB=ON)
Q405
SWITCHING D-REC-OFF
5
EQ AMP
9
8
7
LINE AMP
REC-ON
A
U
DIO HD-SW
CONTR
O
L
MUTE
11
6
PB-ON
SP/LP-ON
P
TUNER
IN2 IN1
R
ALC DET ALC
IC301 (A
UDIO SIGNAL PR
OCESS)
4
A
UDIO-PB/REC
CN504
3
A-COM
1
AE-H
2
AE-H/FE-H
A
UDIO
HEAD A
UDIO
ERASE HEAD
A
CE HEAD ASSEMBL
Y
FE HEAD
2
FE-H
1
FE-H-GND
CN501
MAIN CB
A
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
Mode : SP/REC
71
A
UDIO-MUTE-H
IIC-B
US SCL
IIC-B
US SD
A
T
O
SER
V
O/SYSTEM
CONTR
OL BLOCK
DIA
GRAM
FULL ERASE HEAD
68
69
SERIAL
DECODER
(DECK ASSEMBLY)
12
16
INV
AT
T
2 6 1 3
JK1402
AUDIO(R)-IN2 AUDIO(L)-IN2 AUDIO(R)-OUT2 AUDIO(L)-OUT2
JACK-A CBA
A
UDIO-IN2
5
5
A
UDIO-OUT2
1
1
CN2017
CN2018
JK101
AUDIO(R)-OUT1 AUDIO(L)-OUT1
2 6 1 3
AUDIO(R)-IN1 AUDIO(L)-IN1
IC751 (OUTPUT SELECT)
12 13
14 15
2 1
11 10
9
SW CTL
VCR DVD VCR DVD
TO SERVO/ SYSTEM CONTROL BLOCK DIAGRAM
OUTPUT-SELECT
DVD AUDIO SIGNAL
REAR
JK751
AUDIO(R) -OUT AUDIO(L) -OUT
SW CTL
13
IC1404 (INPUT SELECT)
12
11
14
17 15 13
FRONT
JK754 AUDIO -IN
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
FRONT-AV
SW
CTL
IC151
(SWITCHING)
PB/EE PB/EE PB/EE PB TUNER IN2 IN1 IN1
A
UDIO-SW
-1
A
UDIO-SW
-2
1 5 2 4
12 14 15 11 10
9
3
13
BUFFER
Q156
BUFFER
Q157
TU701(TUNER UNIT)
A
U
DIO OUT
21
DVD-AUDIO(R)-OUT
DVD-AUDIO(L)-OUT
TO DVD VIDEO/AUDIO BLOCK DIAGRAM <DVD SECTION>
Q753
Q754
AUDIO(L)-MUTE AUDIO(R)-MUTE
TO DVD VIDEO/AUDIO BLOCK DIAGRAM <DVD SECTION>
TP401
JK1-A- OUT(L)