Toshiba MD20Q42 Service Manual page 46

A B
MICON /TUNER SCHEMATIC DIAGRAM
8 (AV PCB)
NC NC
0.2 0.3
5 4
7
NC NC
OUT IN GND
1 2 3
5.2 5.2
0
6
D106
1SS133
5
4
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-11
C
R119
5.2
10K
SW
POWER_FAIL
Q104
4.1
KTA1504S_Y_RTK 4.7
D101
1SS133
22
23
24
C124
0.1 F
0 0 5.1 4.7
5.1
33 32 31 30
4.6
0
3.0
VIDEO IN1
34.SDA
3.1
VIDEO IN2
35.VSS
0
NC
NC
5.1
VDD
0
VSS 43.TV MUTE
44.NC
5.1
DVD POWER
NC
0.2
PROTECT
0
MICON IC
IC101 0
OEC6087A
NC
1 2 3 4
3.3 4.8 1.2 0 5.0
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D E
19
18
0 0 0 0 0 0
NC NC NC NC NC
C008
0.01
R125
4.7K
R140
R144
100
2
2.7K
3 1
25
2.3 2.1 0 0 5.1 4.8
29 28 27 26 25 24 23
26
3.9
0
0
OSD B
21.OSD Y/BLK
0
OSD G
22.H-SYNC
0
OSD R
0
NC
NC
5.1
12.KEY1
IIC BUS OFF
13.KEY2
0
AV1
NC
0
H CONTROL
5.1
5.1
5 6 7 8 9 10 11
0.6 4.7 5.1 0 2.1 0
D109
1SS133
D111
1SS133
D110
1SS133
ATTENTION
:LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
20
21
3.7 4.8 4.6 4.5 4.5 0 0 32.1 0 0
NC NC
NC
B
R141
R145
2.7K
2.7K
W860
VOL_PWM1
A_MUTE1
POWER_ON_H
R136
4.0 4.0 0 5.1 47K
5 6 7 8
4 3 2 1
0 0 0 0
CAUTION
:SINCE THESE PARTS MARKED BY
ETANT
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F G
H
8
FROM/TO IN/OUT
SCL
SDA
I2C_OFF
REMOCON
KEY_A
KEY_B
POWER_ON_H
7
FROM/TO CHROMA
6
TUNER_AUDIO
OSD_Y
OSD_B
OSD_G
OSD_R
SDA
SCL
SYNC_VIDEO
H_CONTROL
PROTECT
TUNER_VIDEO
5
VIDEO_OUT
FSC_OUT
VD
HD
FROM/TO DEFLECTION
+30V
E0_LEAK
POWER_ON_H
X-RAY
FROM/TO POWER 4
POWER_FAIL
ST_BY_HI
GND
FROM/TO REGULATOR
DVD_RESET
POWER_ON_H
DVD_CLK
DVD_RDY
DVD_DATA_OUT
3
DVD_DATA_IN
AT+5V
P.CON+5V
TO SOUND AMP
R128
100K
VOL_PWM
R124
POWER_ON_H1
MUTE SW
68K1/4W
Q101
KTC3875S_Y_RTK
2
R138 0.6
0
100
0
PCBD20
CME066
ARE
1
H
G-12