Durabrand Color Television Receiver DBTV2500 - Manual (Page 17)

BLOCK DIAGRAM
29
15
14
16
62
1
64
33
50
CF601
SAW FILTER
42
AGC IF
TU001
11 1
CHROMA IC
IC601 M61203BFP
PUMP UP
AMP
+
-
7 2 6 5
V-OUT IC
IC401 LA78041
IC351 AN7523
SP351
Q801
RED OUT
Q803
GREEN OUT
Q802
BLUE OUT
CRT
11 6 8
R G B
Heater
F 9
2 V. SYNC
25 RESET
MICON IC
IC101 OEC7044A
9
HV
F
S
FB401
10
1
Q402
H. DRIVE
Q401
H. OUTPUT
Q101
X-RAY TEST SW 30 X_RAY_TEST
3 1
P. CON+5V
REG IC
IC402
KIA7805API
P. CON+5V
19 XIN
20 XOUT
X101
8MHz
3 4
POWER REG. IC
IC501
STR30110
D501~D504
RECTIFIER
2 5
1 3
L501
DEGAUSS COIL
L502
POWER
Q501
POWER 36
AUDIO MUTE 5
19
10
32
X602
3.579545MHz
Q606
REG.
6 2
E-1 E-2
Q608
CUT OFF
SOUND IC
5
POWER
VOL UP
KEY1 27
CH UP
VOL DOWN
CH DOWN
OS101
1 REMOCON 10
3
4 1
2
AC IN
RY101
4
D404
D127
9
SDA
5
SCL
4
34 SCL1
32 SDA1
6 5
MEMORY IC
IC199
S-24C02BDP-1A
2
5
10
17
4
P. CON+15V
7
3
AUDIO OUT
REG OUT
R OUT
G OUT
B OUT
START UP
VCC
H OUT
X' TAL
RF AGC OUT
VIF IN (1)
VIF IN (2)
V PULSE OUT
SCL
SDA
MCU RESET
V OUT
Q403
X-RAY TEST SW.
+B
KEY2 26
3
SDA SCL
12 INV FBP OUT 1 H. SYNC
27 39 BLANK BL FAST BLK
20 B IN 40 BLUE B
28 41 GREEN G G IN
30 R IN 42 RED R
17 CVIN 40 Y SW OUT
F501
VCC
41 REG OUT
55 VREG VCC
6 FBP IN
Q603
REG.
MUTE SW.
Q351
DY