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8.6.
Hi-Fi AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM
R
:TO POWER SUPPLY/RF SECTION
S
:TO SYSTEM CONTROL & SERVO SECTION
V
:TO LUMINANCE & CHROMINANCE/AUDIO SECTION
I
:TO INPUT/OUTPUT SECTION
G
S
MUTE
H
S
SYS IIC CLOCK
S
SYS IIC DATA
V
FSC
I
AUDIO OUT2 (R)
F
I
AUDIO OUT2 (L)
I
AUDIO OUT1 (R)
E
I
AUDIO OUT1 (L)
V
FM MUTE
R
PS 5V
R
PS 12V
R
GND
R
GND (N)
D
V
AUDIO IN (N)
V
AUDIO OUT (N)
C
R
RFC AUDIO OUT
S
AUDIO MUTE
H
B
R
TUNER AUDIO (R)
I
AUDIO IN1 (R)
I
AUDIO IN2 (R)
R
TUNER AUDIO (L)
I
AUDIO IN1 (L)
I
AUDIO IN2 (L)
V
AUDIO HEAD COM
V
AUDIO HEAD R
V
AUDIO HEAD L
S
A.HEAD SW
S
ABS NORMAL
H
S
D.FM REC
H
A
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
1
AUDIO MAIN SIGNAL PATH IN REC MODE
A4
A3
A2
A1
0
QR4503
-0.4
UN2216
(MUTE)
0
QR4504
-0.4
UN2216
(MUTE)
0
QR4502
-0.4
UN2216
(MUTE)
0
QR4501
-0.4
UN2216
(MUTE)
L4502
1.2u
L4501
0
QR4505
UN2113
(BUFFER)
0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
2
3
0.2
49
R4529
220
0.5
50
C4529
16V10
5.8
51
R4531
C4530
220
16V10
5.8
52
C4531
16V10
5.8
53
R4536
220
0
54
55
R4535
220
0
56
C4532
16V10
5.8
57
12.3
58
C4537
C4538
R4528
C4533
0.01
16V47
390
16V10
6.0
59
C4534
10V22
0.7
60
C4535
0
2.4
61
C4536
0.1
2.4
62
R4527
4700
63
64
0
QR4506
-0.4
UN2216
(MUTE)
IC4501
AN3656NFBPBV
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBA
WITH PAL COLOUR SIGNAL.(SP MODE)
4
AUDIO MAIN SIGNAL PATH IN P
A1
R4537
0
2.5
2.5
4.7
2.0
48
47
46
45
SWITCH
RCH
SWITCH
LCH
+
GND
VCC2
DET
NORMAL
OUTPUT
SWITCH
1
2
3
4
2.3
0
2.3
0
C4540
C4541
0.1
0.1
5
A2
A
C4528
R4524
16V10
1K
3.2
4.2
44
43
4
IIC BUS
INTERFACE
OUTPUT
SELECT
SWITCH
RCH
OUTPUT
SELECT
SWITCH
LCH
5
6
0
2.4
C4501
16V10
6
38
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