Analog Audio Block Diagram - Panasonic DMR-EH75VP Service Manual

12.3. Analog Audio Block Diagram

JK3903
(REAR JACK)
IN
24
(R)
L1
IN
20
(L)
IN
22
(R)
L3
IN
24
(L)
JK4600
(FRONT JACK) L2
IN PP4801 PS6001
3
(R) 7
2
IN L/ PP4801 PS6001
5
MONO 5
IIC CLOCK
TO/FROM IC6001-
71
SYSTEM
IIC DATA
CONTROL
IC6001- 72
IC7301
(AUDIO MULTIPLEX DECODER)
TU7401
U/V TUNER
FL7301 R OUT 29
SIF OUT 15 1 3 21 INPUT
L OUT 30
QR4810
L3 H
INV.
IC7501- 69
P59001 P37101 P31901 P6005
TO/FROM
38 9
DIGITAL
P59001 P37101 P31901 P6005
P.C.B.
36 11
MIX R OUT DM
P59001 P37101 P31902 P6004
41 2
P59001 P37101 MIX L OUT DM P31902 P6004
39 5
FROM
DIGITAL
P.C.B.
P59001 P37101 P31901 P6005 IECOUT
44 8
IC4501
(AUDIO PROCESSOR)
TUN R
INPUT
8
SELECT
SWITCH
RCH
L1 IN R
9
DVD R
63
L1 IN L
14
INPUT
L2 IN R
SELECT
10
SWITCH
TUN L
LCH
13
AGC
L2 IN L
15 &
DVD L SWITCH
64
42
IIC BUS
INTERFACE
43
IC4802 IC3701
(L3/TU SELECTOR SW) (AUDIO BUFFER & SELECTOR SWITCH)
Y1
5 TUNER IN R
Y
3 72
Y3
4
X1
14 TUNER IN L
X INPUT
13 71
SELECTOR
X3
SWITCH
11
L CH
9 L1 IN R
80 VCR
L
TU
L1 IN L L2
78 L1
L2 IN R
76
R CH
L2 IN L
VCR
74
TU
L2
L1
I2C5CK
22
IIC BUS
I2C5DT INTERFACE
23
53
54
DVD AUDIO SIGNAL AUDIO MAIN SIGNAL PATH IN REC MODE
IC3001
(AUDIO PROCESSOR)
NORMAL R
SELECT 61 2
SWITCH
P
62 6
OUTPUT
SELECT
SWITCH
R CH
53
AGC
&
SWITCH
OUTPUT
SELECT
57
SWITCH
L CH
QR4808
RCH
MUTE
PNR R CH
QR4808
LCH
MUTE
FM MODULATOR/
PNR L CH DEMODULATOR
QR4807
SW NOISE SW NOISE
LPF BPF
VCO
45
FO
BPF 30
FM MIX
TW4501
FM MODULATOR/
LPF + AGC 21
DEMODULATOR
MUTE
36
CTL
HOLD
27
TIMING
PREAMP &
29
SWITCH
24
22
VHS R
70
VHS L
69
ADC R
58
ADC L
59
INPUT
SELECTOR
SWITCH
LINE OUT R
P-ON
6 65
L CH MUTE
VCR
P-ON LINE OUT L
6 66
MUTE
DVD
+
R CH
FROM
VCR
XTMUTE L
TIMER
IC7501- 100
SECTION
DVD
L CH
VCR
FROM
P59001 P37101 P31902 P6004
DIGITAL
27 6
DVD P.C.B.
R CH
VCR
P-ON DVD OUT R
6 61
MUTE
DVD
P-ON DVD OUT L
6
62
MUTE
63
AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE
Q4001, PB H :ON L :ON
D.REC
Q4002 QR4001 IC6001-
A+5V
REC P4002
VCA 98 A.HEAD(R)
EQ. 4
fh PRE P4002
96 A.HEAD(W)
TRAP AMP 3
QR4806
MUTE
QR4809 QR4806
MUTE
MUTE
DRIVE
MUTE
DRIVE
ENVE
TW4502
COM MUTE COMMON MUTE
IC6001-
P3001
7
P3001
8
P3001
9
P6003 P31903
18
P6003 P31903
19
QR4802
MUTE
QR4802
MUTE
QR4801,
X SW5.8V
QR4803
MUTE QR4804
DRIVE
QR4801, QR4805
QR4803
XDMUTE MUTE
MUTE
DRIVE
QR4805
MUTE
QR4814
X SW5.8V
MUTE
QR4813
QR4814
MUTE
IEC OUT
DMR-EH75VP
Analog Audio Block Diagram
DMR-EH75VP
FROM
H SYSTEM
20 CONTROL
SECTION
TO/FROM
A/C HEAD
JK3902
REAR JACK
VHS/DVD
COMMON OUT
OUT
22
(R)
LINE
OUT
18
(L)
FROM
FSC
VIDEO
IC3001- 63
SECTION
H
73
FM MUTE H
FROM
IC6001- 28
SYSTEM
CONTROL
AUDIO HEAD SW
SECTION
IC6001- 19
D.REC H
IC6001- 20
L
Hi-Fi
AUDIO
HEAD
R
P37101 P59001
TO
31
DIGITAL
P37101 P59001
P.C.B.
29
JK3902
REAR OUTPUT JACK
DVD
OUT
24
(R)
OUT
20
(L)
JK4801
DIGITAL AUDIO OUT
PCM/
23
BITSTREAM