Document
6
5
4
3
2
CN902
R917 15K 2W R913 1/6W 100R
1
REVISION RECORD LTR ECO NO: APPROVED: DATE:
HEATER
14" 21" SKYTEX COLOR TV BASIC SCHEMATIC DIAGRAM
Q912 C2482 R914
1 1 +180V
2 2
3 3
4 4
GND
5
5
4
4
12 GND1
13 GND2
14 GND3
15 GND4
B00 B01 B02 TU001 B03
2
B G R
VIDEO OUT
+8V
1/6W 3.3K
5 5
4 4
R G B
8V
C903
R916 330R 1/6W
C911 50V
2
3 3
390P
R907 15K 2W
3
3
11 +110V
2W 22K R875 IC115 UPC574 R117 15K 1/6W C116 50V R118 10K 1/6W C122 50V R119 10K 1/6W C123 50V R120 47K 1/6W
10
9
8
7
6
5
4
3
2
1 B39 AV_AOUT
R337 1/6W 4.7K R332 100R 1/6W Q339 R334 220R 1/6W Q337 2SC1815 R335 75R 1/6W
CN205
D
1 1
IF
IFGND
33V
NC2
NC1
VCC
BAND2
BAND1
NC0
VT
AGC
+8V
1
1
2 2
GND
D
CN901
16V
100U
R903 1/6W 100R 1/6W 3.3K R904 R906 330R 1/6W C901 50V
+5V
C106 50V C107 C105 16V C104 16V C103 C101 16V R100 4.7K 1/6W 1/6W 22K 2SC1815 R331 1/6W 4.7K R333
Q902 C2482 C939 2KVdc
10U
0.1U
0.1U
C338 16V 100U
SCREEN
0.01U +5V-CPU IC103
24C16
100U
R137
16V
C125 50V R138 10K 1/6W R139 10K 1/6W
R129 1/6W 100R R128 1/6W 1K C127 C130 50V 2200P R132 1/6W 1.5K
2 B E 1
2.2U +8V
2.2U
0.1U
10U
560P FOCUS
R927 15K
1 A0 VCC 2 A1 3 A2
8
220P
WP 7 SCL 6 5
R126 22K Q124 2SC1815 1/6W
R133 1/6W 4.7K
L137
1.2mH
R136 C121 1/6W 560 0.01U C131
1/6W 10
SP2
390P
4 GNDSDA
220P
50V
C
Q135 2SC1674
50V 2200P
CN8
R928 2.7K 1/2W
B15 BAND2
B14 BAND1
VT
CN602
1 1
2 2
B06 AGC
B05
B07
B08
R134 1/6W 47
SDA
SCL
C337
D901
R923 1/6W 100R 1/6W 3.3K R924 R926 330R 1/6W
1N4148
Q922 C2482
R908 2.7K 1/2W R918 2.7K C923 50V 1/2W
R G B
16V 10U
1N4148 D911 1N4148 D921
AGC
B31
B20
B09
AUDIO AMP B26
AV1_AIN B22
B11
CN103 CN_4
G
R
+5V-CPU
4 4
AV2_AIN B25
B00 B
B01
MUTE
B02
TO IR BD
1 1 2 2 3 3
B06
+5V
BUS OPEN
+5V
LED
IR
AV_SEL
GND
+8V
D103 1N4148 R264 1/6W 10K
ABL
+5V-CPU
R279 1/6W 270R
R278 1/6W 270R
R277 1/6W 270R
+8V
390P
CRT
C189 50V
C188 16V R901 10K 1/6W
D905
R150 1/6W Q210 2SC1815 100R R151 10K 1/6W R282 1/6W 10K R231 1/6W 10K R232 1/6W 10K
R217 R214 1/6W 2.2K 1/6W 10R
0.01U
47U
2SA1015 Q901
C925 50V 0.01U
R265 R230 10K 1/6W 1/6W 10K
C269 16V
C268 50V
100U
0.01U
R211 1/6W 2.2K
R212 1/6W 2.2K C254
5
C253 50V C193 50V C192 63V
4
Z191 3
R186 50V
1N4148
B12 STANDBY
16V
C906
16V R269 1/6W 10K
47U
0.01U
1U
0.1U
1
2
0.47U
C187
1/6W 4.7K
100U
R194
C
R280 1/6W 100
C206 50V
0.01U
C203 50V 0.01u
1/6W C195 50V 10R
R189 1/6W 22K
R185 22R 1/6W
C186 50V
EHT
1
2
2W
3
C
B[00:45]
C314
TDA2003 IC601
0.47U
C184 50V
2200P
44
AV_LIN
64
VDD
63
FILT
62
VSS
61
XIN
60
CNVSS
59
BUSOPEN
58
57
S_MUTE
56
55
AV_SEL
54
RESET
53
CPU_VCC
52
BOUT
51
GOUT
50
ROUT
49
H_VCC
48
ABL
47
AU_OUTR
46
AU_OUTL
45
TV_SOUT
43
AV_RIN
42
AUBYPASS
41
SIFMIX
40
VIF_VCC
39
VIF_AGC
38
VIF_IN1
37
VIF_IN2
36
RF_AGC
35
VIF_APC
34
VIF_GND
33
AVLFILTER
1U
P301
R314 82R 1/6W
RCA_9PA
15 VIN
16V 10U
19
GND
1
IC101 R2J10190/191GA/192/193GA/194/195GD
CVBS1IN/CIN CHROMAGND DEFVCC(5V) CHROMAVCC SECAMBELL AFC1FILTER CVBS2/YIN VIDEOOUT REMOTEIN
SP1
C185 63V 0.039U
IN 1
14 VOUT
AV2_AIN
B25
GND OUT VCC -IN 20 13 GND YIN
V_DRIVE
CNVSS2
BAND1
TEST0
X-RAY
C-APC
KEYIN
HOUT
CBIN
CRIN
SECAMPLL
STANDBY
DEFGND
VD_AGC
VD_CAP
BAND2
XTAL
2
SDA
SCL
AFT
FBP
EW
2
VT
CN9
1
21 4
2
3
4
5
GND LIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C165
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32 CN601 1 1
2 2 10 5 GND LOUT
C161 50V 0.01U
0.1U
63V
0.22U
63V
C174
X101
4.43MHZ
C181
http://www.DataSheet4U.net/
C622 C621 16V 16V
+14V
11
GND CB
GND
50V
100U
R623 220 1/6W C614 25V
16V C615
470U
6
12
GND CR
0.01U
1/6W 100 R169 C178 C166 50V 63V R170 1/6W 4.7K
10U
B22 AV1_AIN
R616 C613 C611 16V
50V
C313
7
CN101
R155 1/6W 100r R154 1/6W 3.3K
R156 1/6W 100R
R157 1/6W 100R
1 1
R165 C164 63V 8.2K 1/6W
R179 8.2K 1/6W C180 50V
R624 1/6W 2.2R
470U
1W 4.7OHM C617
BUS OPEN SDA SCL
B20 B07 B08
C311
B24
16
GND ROUT
16V
33U
0.01U
R303 82R 1/6W
8
2 2
17 9 18
GND RIN
R155A 1/6W 10k
0.015U
R158 1/6W 10K R159 1/6W 10K
+5V-CPU
0.015U
+5V
C620 50V R619 1/6W 10K R618 1/6W 3.3K
Q610 2SC1815
R606 1K 1/6W
10U
63V
3 3
0.1U
4 4
AV2IN
16V 10U R301 10K 1/6W
GND
0.47U
0.47U +5V
4700P
C183 C182
B29
AV1IN
CN104
CN303
3
TO KEY BD
1 1
KEY GND
C160 50V
AUDIO AMP
+5V
C168
2 2
47U AV_AOUT
2
0.01U VIDEO OUT
C167 50V
50V
16V
1N4148 D106
STANDBY
MUTE
16V
D212
1
1
100P
Q211
1/6W
10U
2
2SA1015
R213 1K
+8V
C605 16V
V1IN GND A1IN
AV1IN
B15 BAND1
B14 BAND2
EW
0.01U VOUT
47U HOUT B24 AV2IN FBP
B
SDA
SCL
VT
16V
C212
1N4148
3
100U B26 B11 B16 FBP
0 AV2 1 AV1
B29
B08
B07
B05
B12
B30
B18
B17
B16
B03
B39
R173 120K 1/6W
B
C312 16V 10U R302 10K 1/6W C179 16V
STANDBY
VOUT
EW B30
B12
B18
HOUT
IC802
R163 220R
+180V
2SA1015 Q172
B17
R174 56K 1/6W
D175 +5V
D435
FR107
R171 1/6W 10K
1N4148
PC817
1W
1.