Durabrand Color Television Receiver DBTV2500 - Manual (Page 21)

A B C D E F G H
A B C D E F G H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
Q606
2SD734
REG.
Q603
2SD734
REG.
D607
1SS133
D605
11E1-EIC
D603
1SS133
D604
1SS133
D601 1SS133
X602
3.579545MHz
Q608
2SA1015Y
CUT OFF
AUDIO SIGNAL
LUMINANCE SIGNAL
IC601
M61203BFP
CHROMA IC
1 10 11 12 13 14 15 16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33 34 35 36 37 38 39
4
40 41 42 43 44 45 46 47 48
49
5
50
51
52
53
54
55
56
57
58
59
6
60
61
62
63
64
7 8 9
CF603
EFCT4R5YS5A
CF604
EFCT4R5MW5
CP601
TKC-M06X-A1
1
2
3
4
5
6
C638
4.7 50V NA
L601
1.2uH
L605 1uH
CF601
SAF45MFY220ZR
SAW FILTER
2 3 4 5
W837
W819
W828
W805
W839
D614
MTZJ6.2B
D615 MTZJ6.2B
D616
MTZJ6.2B
D612
MTZJ12B
D611
MTZJ12B
D610
MTZJ12B
D602
MTZJ8.2B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R635
100
R626
10K
R613 100
R624
2K
R602
1K
R611 10K
R634 10K
R639
100
R627 100
R630 100
R631 100
R617 2.7K
R608 2.7K
R616 330
R632
120
1/2W
R615
470
R622 120
R614
2.2K
R619
2.2K
R625
2.2K
R612
5.6K
R623
120
1/4W
R644
100 1/4W
R636 33K
R633 8.2K
R642
100K
R646 12K
R638 6.8K
R641
20K
R620
1K
R605 4.7K
R604
100
R601 2.7K
R621 2.7K
R603 1.5K
R606
10K
R609 470
R618 10M1/4W
R647 1.8K
C635
47
10V
KA
C645
47 16V YK
C604 1 50V KA
C609
10
50V
KA
C601
47
16V
YK
C640
470
6.3V
YK
C610
0.22 50V YK
C612 470
10V
YK
C627
1
50V
KA
C644 100
10V
YK C625
1
50V
KA
C603
1
50V
KA
C606
0.1 50V KA
C605 0.47
50V
KA
C624 2200
10V
YK
C632 2.2 50V KA
C619_1 3.3
50V
KA
C631
470P
B
C626
0.001 Y
C639 0.01
Y
C621 0.01 B
C643
0.001
Y
C616
15P
CH
C636 0.01
Y
C642 0.001 Y
C623 0.0033 M
C630
0.01
Y
C614
0.01
Y
C651
470P
B
C654 0.022 F
C622
0.015
M
C661 0.01 Y
C613_1
1 TF
C607
0.01
Y
C618_1 22P
CH
C699 0.01
Y
C637 0.01
Y
C634_1 0.01
B
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.
NOTE:
TUNER VIDEO SIGNAL
R.SIGNAL
G.SIGNAL
B.SIGNAL DEFLECTION SIGNAL
L607 15uH
L603 10uH
S802X S802Y
S106Y
SYNC
Y_VIDEO
AT+5V
P_CON+15V
RESET
AT+15V
GND
AUDIO_OUT
ABCL
P_CON+5V
V_FEEDBACK
V_OUT
GND
H_OUT
H_SYNC
B.OUT
G.OUT
R.OUT
AFT
CLAMP
AGC
IF
GND
HD
POWER
OSD_B
OSD_BLK
OSD_G
VD
OSD_R
I2C_OFF
SDA
SCL
PCB010
TMX456
(MAIN PCB)
CHROMA SCHEMATIC DIAGRAM
FROM POWER
FROM POWER
FROM/TO MICON/TUNER
TO SOUND
TO MICON/TUNER
G-4 G-3
FROM/TO DEFLECTION/CRT
TEST POINT
FBP IN SCL
RF AGC OUT
AFT OUT
VIF GND
VIF VIDEO OUT
QIF IN
VIF APC FILTER
VREG Vcc
VIF VCO F/B
AUDIO BYPASS
EXT AUDIO IN
FM DIRECT OUT
Hi Vcc
R OUT AFC FILTER DEF H OUT
SDA H VCO F/B INV FBP OUT POWER ON CONT
STRAT UP Vcc
B IN
V RAMP FEEDBACK
V RAMP CAP
VIDEO CHROMA Vcc
fsc OUT
G OUT
V PULSE OUT
R IN
CHROMA APC FILTER
TV/Y IN
5v REG
Y SW OUT
VIDEO/CHROMA GND
FAST BLK
SPOT KILLER
G OUT
RF AGC FILTER
INTELLIGENT MONI
MCU RESET
VIF Vcc
5.7V REG OUT(FOR CPU)
47 LIMITER IN
48 IF AGC
49 QIF OUT
50 AUDIO OUT
46 SW REG CONT 34 EXT C in
33 8.7V REG OUT
32 X’TAL
31 ACL/ABCL
64 VIF IN
8.2 15.0
8.8
4.5
8.2
8.2
2.5
5.6
5.0
5.0
7.3
5.0
2.6
8.8 3.4 5.5 4.8 3.9 8.2 8.2 2.3 2.9
0.8
0.1
5.5
0
6
7
11 12 13
10
8
9
5
4.8 10.6
0 2.9 3.3 2.0
0
0
0
0
3.5
NC
4.8 4.0 4.0 4.9 4.9 3.5 4.9 0 0 6.2 6.2 4.9 2.7 5.0 1.5 5.0
2.9
1.8
1.8
2.9
3.2
0
0
2.6
3.0
9.2
3.1
3.8
3.2
2.3
3.0
2.3
1 VIF IN
17 V OUT
16 B OUT
NC 0 0
0
B.OUT
INT.MONI
IIC_OFF
SDA
SCL
GND
0