Audio Main Section (Main P.c.b. (4/6)) Schematic; Diagram (A) - Panasonic DMR-EH50P Service Manual

DMR-EH50 P / DMR-EH50 PC
20.6. Audio Main Section (Main P.C.B. (4/6)) Schematic Diagram (A)
C4028
63V15
M AADC R
M AADC L
C4029
63V15
G
V L2 IN R
V L2 IN L
P X SW 12V
P X SW 5.8V
C4046
F
0.1
M AU 5V
C4049
10V470
5
VOUT
IC
NR GND
E
1 2
C4047
0.1
R4010
0
T P OFF L
D
P:Sub Power Section(Page:
M:Main Net Section(Page:
V:Video I/O Section(Page:
A:Audio Main Section(Page:
T:Timer Section(Page:
U:UART/IR Section(Page:
C
P X SW 5.2V
R4049
10K
B
QR4001
T XTMUTE UNR521100L
(MUTE)
M XDMUTE
P GND
A
V M AU GND
1 2
R4043
3.9K
R4044
R4045 R4046
3.9K
6.2K 6.2K
R4037 R4038
100K 100K
C4045 C4052 C4022 C4023
0.1 16V470 0.1 16V470
4 5 4
VIN VIN
IC4004 IC4005
C0CBCDD00002 C0CBCDC00027
(REG.AU+5V) (REG.AU+9V)
IC
GND NR
3 1 2 3
C4050
0.1
A )
B )
C
)
D )
E )
F )
R4052
10K
R4050
Q4001
10K
2SB1218A0L
R4051 (MUTE)
10K
QR4004
UNR521100L
(MUTE)
QR4003
UNR521100L
(MUTE)
QR4002
UNR521100L
(MUTE)
3 4 5
C4025 C4024
25V47 25V47
R4029 R4027
10K 10K
C4027 C4026
50V1 50V1
R4028 R4026
15K 15K
R4032 R4031
1K 1K
C4019 C4017
56P 56P
32 31 30 29 28 27 26 25 24 23
L2 IN L2 IN VCC AADC L AADC R MIX R D/A L D/A R MIX L
L R OUT OUT
VCC
- + - +
+
INPUT
L CH R CH
SELECTOR
SWITCH
- + - +
BS BS
TUNER TUNER TUNER
L R CAP2 IN L
1 2 3 4 5 6 7 8 9 10
C4009 C4010 C4011 C4002
0.1 0.1 0.1 1
C4038 25V47 R4061 680
R4059
Q4002
47K
2SD132800L
R4063 (MUTE)
D4001
2700
MA3Z142D0LG
2
3
1
R4064
Q4003
2700
R4060
2SD132800L
47K
(MUTE)
C4036 25V47 R4066 680
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERING. THE CORRECT PART NUMBER IS SHOWN
IN THE PARTS LIST, AND MAY BE SLIGHTLY DIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
6 7
56
R4025 R4024
100 100
C4016
25V220
22 21 20 19 18 17
1/2VCC GND SDA SCL
IIC BUS
LOGIC
1/2VCC
2AMP
IC4001
C1AB00001920
(AUDIO PROCESS)
TUNER L1 IN L1 IN L3 IN L3 IN LEVEL RF
IN R L R L R SENSE BIAS
11 12 13 14 15 16
C4001 C4004 C4003 C4006 C4005
1 50V1 50V1 50V1 50V1
R4013 1K
R4014 1K
R4011 1K
R4012 1K
R4004 R4003 R4002
100K 100K 100K
R4015 R4016
100K 100K
R4062 680
Q4004
C4039 C4041
2SD132800L
1000P 1000P
R4067 (MUTE)
D4002
2700
MA3Z142D0LG
2
3
1
R4068
Q4005
2700
C4040 C4042
2SD132800L
1000P 1000P
(MUTE)
R4065 680
8 9 10
D
MIXROUT DM M
MIXLOUT DM M
IIC DATA M
IIC CLK M
L3 IN R V
L3 IN L V
L1 IN R V
L1 IN L V
R4001
100K
TUNER R M
TUNER L M
R4069 220
MIX L OUT2 V
MIX L OUT1 V
R4070 220
R4071 220
MIX R OUT1 V
R4072 220
MIX R OUT2 V
DMR-EH50P/PC
Audio Main Section
(Main P.C.B.(4/6))
Schematic Diagram(A)
11