Toshiba MD20FM3 Service Manual page 54

A B
8
7
FROM/TO AV SW
MONITOR_A_L
MONITOR_A_R
DVD_A_L
DVD_A_R
SWD_V.OUT
REAR_A_IN-L
REAR_A_IN-R L7002
100uH
6 REAR_V_IN
R7005
FROM POWER
AT+8V
P.CON+D5V
SPDIF-134
5
GND
AT-8V
AT+5.6V
W820
P.CON+12V
4.7mH 0607
ZERO
SYS_MUTE
W807
DVD_AUDIO_L
DVD_AUDIO_R
P.CON+9V
4
FROM MICON/TUNER
EXT_MUTE
TV/DVD
3
C7006
R7001
DVD_AUDIO_L
10K 50V 2.2
C7007
R7002
DVD_AUDIO_R
10K 50V 2.2 KA
2
CAUTION: DIGITAL TRANSISTOR
1
A B
G-17
C
IN/OUT SCHEMATIC DIAGRAM
MUTE SW
7.4 Q7005
MUTE SW
DTA114EKA
7.3
Q7007
2SC2412K
0.8
MUTE SW
0 R7025
Q7004
MUTE SW
2SC2412K
0.2
2.2K Q7008
0 1.1 2SC2412K
7.3
R7014 R7020 R7026
0 0.2
10K 10K 2.2K
0
0
4.9 D AUDIO DRIVER
COAXIAL DIGITAL AUDIO
Q7001
J7001
2SC2412K
YKC21-3895
1.6
10
R7016 C7015 B7001
1.2
120 0.1 B
W4BRH3.5X6X1
1.2
D AUDIO DRIVER C7024
1.6
Q7002
100P CH
2SA1037AK
0
L7001
W854
D7005
1SS133
D7006
0.3
MUTE DET
0
1SS133
Q7003
0
2SC2412K MUTE SW
0 3.2 Q7017
DTC144EKA
0
C7020 R7029
0.0015 CH 12K
R7008 R7024
10K 10K R7031
C7031
8.2K R7034
16V 22 KA 470
5.8 5.8 5.8
0
4 3 2 1
-
R7011 +
KA 100K +
-
5 6 7 8
5.8 5.8 5.8 11.5
C7032
R7035
R7012 16V 22 KA 470
C7022
100K
0.0015 CH
R7013 R7023
10K 10K R7028
12K
CAUTION: DIGITAL TRANSISTOR
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(AV PCB)
NC
7.4 0 0.3 0.7 0.3 0 0
0
16 15 14 13 12 11 10 9
Vdd BOUT AOUT AY AX A B C
4.1
BY BX CY COUT CX INH Vee Vss
1 2 3 4 5 6 7 8
0 0 0.9 0.1 0.1 0 -9.9 0
41
39
MUTE SW.
Q7010
5.2
DTA143EKA
5.2
MUTE SW
0 Q7012
2SC2412K
0
5.2 R7039
MUTE SW.
0
0
Q7009
1K B7003
0
KRC103SRTK
40
0
W4BRH3.5X6X1 B7004
W4BRH3.5X6X1
0 MUTE SW
Q7011
2SC2412K
0
0
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
D E
F G
0
SW
Q7013
KRC103SRTK
0
R7053
2201/2W
9.0
0.5
BUFFER
Q7014
2SC2412K
1.1
BUFFER
1.8
Q7015
R7047
KTA1266
100
1.1
0
H1 H2 H1
2 3 5
1 4
E E
AUDIO SIGNAL
AUDIO SIGNAL(PB)
TUNER AUDIO SIGNAL
DIGITAL AUDIO SIGNAL(PB)
TUNER VIDEO SIGNAL
PLAYBACK VIDEO SIGNAL
F G
H
8
7
6
5
4
8.3
4.4
BUFFER
Q7016
2SC2412K
3.8
8.3
4.4
BUFFER
Q7006
2SC2412K
3.8
3
H2 H1 NC H1
4 2 3 6
2
1 5
E E
PCB250
TMA503
1
H
G-18