Toshiba MD20Q41 Service Manual page 55

A B
8
7
FROM/TO STEREO
A_O_L
A_O_R DVD_H2
DVD_AUDIO_L
DVD_AUDIO_R
FRONT_A_IN_L
FRONT_A_IN_R
L4202
6 100uH 0305
FROM/TO VIF/SIF CHROMA
FRONT_VIDEO R4205
SWD_VIDEO
2.2K 1/4W
FROM/TO REGULATOR
P.CON+5V_A
P.CON+5V
5
SPDIF-134
AT+5.6V
L4201
P.CON+12V
100uH 0305
DVD_A_OUT_L
DVD_A_OUT_R
P.CON+9V
DVD_VIDEO_A 0
ZERO
2.9
0
FROM/TO REGULATOR
GND
DVD_H2
4
(S802)
FROM/TO MICON/TUNER
KEY_A
R4208
KEY_B
POWER_ON_H
10K
SCL
SDA
REMOCON
3
I2C_OFF
DVD_H1
C4206
R4201 R4211
DVD_A_OUT_L
FROM/TO SOUND AMP
10K 50V 2.2 KA 100K
SOUND_L+
SOUND_R+
SP_OUT_L
SP_OUT_R
SOUND_GND C4207
R4202 R4212
DVD_A_OUT_R
10K 50V 2.2 KA 100K
R4213
2
10K
NOTE:THE DC VOLTAGE EACH PART WAS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
1
A B
G-17
C
IN/OUT SCHEMATIC DIAGRAM
R4206_1
2.2K 1/4W
4.9
COAXIAL
D AUDIO DRIVER
J4201
Q4201
1.6 MSP-251V-05NI-FE-LF
KTC3875S_Y_RTK
R4216 C4215 B4201
1.2
68 0.1 B
W5RH3.5X5X1.0
C4224
100P CH
R4243
10K
MUTE DET
Q4203
KRC104SRTK
R4209
4.7K
C4220 R4229
0.0015 B 12K
R4224
R4231
10K
10K C4231
R4234
16V 22 KA 100 1/4W
5.2 5.2 5.2
0
4 3 2 1
-
+
+
-
5 6 7 8
5.2 5.2 5.2 12.6
C4232
R4235
16V 22 KA 1001/4W
C4222
0.0015 B
R4223
10K R4228
12K
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D E
(AV PCB)
SOUND_GND
37
MUTE SW.
Q4210
5.2
DTA143EKA
5.2
MUTE SW
0 Q4212
KTC3875
S_Y_RTK
5.2 0
MUTE SW.
R4239
0
Q4209 0
DTC124EKA
1K
0
0
38
0 MUTE SW
Q4211
KTC3875
0
S_Y_RTK
0
CAUTION: DIGITAL TRANSISTOR
CAUTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
AT+5.6V
R2202
1001/4W
5.2
5.1
POWER_ON_H
SW
Q2201
0 DTC124EKA
R2214 R2216
820 1K
REMOCON
AT+5.6V
KEY_A
R2215 R2217
KEY_B
820 1K
FRONT_A_IN_R
FRONT_A_IN_L
FRONT_VIDEO
SP_OUT_R
SOUND_R+
C2205
SOUND_L+
H
16V 47 2
SP_OUT_L
YK
1
YELLOW
HEADPHONE_JACK
J2201
MSJ-2000_AG
TEST POINT
CP101
A2001WV2-9P
GND 1
SCL
I2C SCL 2
SDA
I2C SDA 3
I2C_OFF
I2C OFF 4
P.CON+9V 5
A_O_L
AUDIO OUT L 6
A_O_R
AUDIO OUT R 7
DVD_VIDEO_A
DVD_VIDEO 8
SWD_VIDEO
SWD_VIDEO 9
39
CAUTION: DIGITAL TRANSISTOR
F G
MD20Q41/MD20Q41C
H
8
OS2202
PIC-37243SR
1 Vout
2 B+
3 GND
R2218 R2220 R2221
1.5K 2.7K 5.6K
7
R2219
1.5K
R4227
6
75
NC NC
NC H NC H NC
3 2 3 2 3
1 1
E E E
WHITE RED
5
4
3
2
PCBD20
CMD010
1
H
G-18