Durabrand DBTV1901 Service Manual page 37

A B
ACCESSORY
8
TM101
RC-DW010
7
OS101
PIC-28143SY-2
6
5
R114
10K
R115
4
47K
3
C130
0.01
Y
2
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-1
C D
MICON/TUNER SCHEMATIC DIAGRAM
MICON IC
IC101 OEC7045B
P50/H.SYNC RED R
4.0 0
4
P51/V.SYNC GREEN G
4.7 0
P00/EXT MUTE BLUE B
0
0
R116
P01/I2C_OFF
OUT1/BLANK BL
R117
47K 4.8 0
R111
47K
P02/AUDIO MUTE P20/AV2
NC
10K
0
0
P03/(Surround) P21/AV1 NC
0
0
P04 P22/POWER
0 4.9
P05/(Center_SP) P10/DEGAUSS_H NC
0
0
INT2/P.FAIL
SCL1
4.8
4.0
R131
INT1/REMOCON SCL2 NC
100
4.8 3.2
W822
P23/SYNC
SDA1
4.8
0.8
NC P24 NC
SDA2
0 3.2
NC
NC
P25/ON_TIMER AD1/X_RAY_TEST
0
0
AVCC
X-RAY
C122
R130
4.9 0
50V 1 KA 1K
HLF
C121 AD4/AFT
1.9 0
C120
200P CH
V.HOLD
AD5/KEY1
0.001 Y 0.2 4.9
C124 R134
CVIN
AD6/KEY2
0.1 F 470 2.6
4.8
2
CNVSS
RESET
0
2.5
1
X101_1
Xin OSC1
EFOEC8004T4
2.3 2.5
Xout OSC2
1.6 2.5
VSS VCC
4.9
0
C118
6.3V 470 YK
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
(MAIN PCB)
TU001 ENV56D66G3
C003
50V 4.7 KA
3
R123
4.7K
R122
4.7K
R121
4.7K
R120
4.7K
R006
270
C117
R105
220P B
R007
4.7K
270
C116
220P B
R106
4.7K
R107
10K W809
W813
R112 2.2K
W815
R113 2.2K
R119
1K
C114
W819
12P CH
C113
12P CH
W820
4.8 4.8 0 4.9
5 6 7 8
4 3 2 1
0 0 0 0
CAUTION: SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
E
F G
W837
R002 R001
18K 1/2W 18K 1/2W
C137
50V 0.1 KA
C129
50V 0.1 KA
C125
50V 0.1 KA
R128
560
R101
R126
560 2.7K
ATTENTION: LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
7
FROM/TO CHROMA
AGC
GND
TUNER+5V
IF
6
I2C_OFF
VD
HD
OSD_R
OSD_G
OSD_B
OSD_BLK
5
TO SOUND/AV
AUDIO_MUTE
POWER
FROM DEFLECTION/CRT
+B
4
X-RAY
FROM/TO CHROMA
POWER
SCL
SDA
AFT
3
RESET
AT+5V
Y_VIDEO
SYNC
2
PCB010
TMX494
R.SIGNAL
G.SIGNAL
B.SIGNAL 1
DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
H
G-2