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1
2
3
4
14"
D
21"
AXT1EXT1 AX CX SERIES
SHVS
Y C
COLOUR TV BASIC CIRCUIT DIAGRAM
FRONT AV
AV OUT
AV1
V2
AV2
L2 R2
C871 0.01
R864 75
C874 47P
VO
LO
RO
V1
L1 R858 1K
R1 C868 R859 1K 47P
CRT
BOARD
L512 100U R513 3.9K V511 C2482 R518 2.7K/0.5W L511 39U R515 15k/2W
D
R856 75
R853 1K
GND1
GND1 C872 1u
GND1 C867 1u
GND1 C863 R854 22K 1u
R852 1K
SOCKET
R861 22K
8V V850 C1815 C870 1u C873 47P R862 75 R869 47
C850 1u
GND1
GND1 V851 C1815
GND1 R511 470 R873 10K V801 A1015
R680 R689 10K
R679 R690 10K
R863 1k
Y/V1 IN
GND1
GND1
GND1 V OUT R857 1K R870 220 C IN R815 3.3k C801 1U
V802 A1015 R821 10K R874 10K R818 1K L/R
R819 1K
VD511 IN4148 V512 C1815 C518 470P R517 680 GND1 G1
R G B
G2 G3
R820 10K
VE01 CRT
R867 1K
R871 1K
TUNER 5V
V604 V608 C1815 V605 V609 C1815 NO USED
XS501
V2 IN
XP501 1
GND1
GND1
GND1
C808 1u
AGC
VCC
GND
VT
B1
B2
NC
NC
NC
IF
GND1
GND1
Icath
XS501
Icath Icath 8V
R516 220
1
GND1 R103 100 L101 1u R101 R102 27K 4.7K VT C101 47u 8V R111 22 R107 5.6K R110 470 C119 0.01 C118 47u L103 1u 5V-2 Icath
8V
1 2
R531 22 C553 47u GND1
GND1
L522 GND1 100U R525 15k/2W C510 4700P/2KV
2
A OUT
V521 C2482
STV2248C
1 SIF1
N301
BOUT FM 56 CAP C327 1u C326 0.01u C325 100u L306 22u AUDIO OUT GNDD 55 GND1
3 4
GOUT
GND
GND
3
GND1
R523 3.9K
R528 2.7K/0.5W L521 39U
GND1
GND1
GND1 5V-2
GND1
GND1
GND1 GND1 1 2 3 4 V105 2SC388 IF SDA 5 5V-1 C645 47u C646 0.01 R677 100 R678 100 R113 10K R329 4.7k V104 C1815 C107 0.01u R108 1K
GND1
BIN
Bin
4 5 6
R532 1.8K
R521 470 R535 1.8K R526 220
H.V
C551 4700p/500v
5
ROUT GND1 GND1 GND1 C329 0.1u GND1 C324 4.7n SDA GND1 R325 100 R324 100
VD521 IN4148 V522 C1815
Gin
Gin
FOCOUS SCREEN
V102 c1815
R649 4.7K
V101 c1815
BH
R648 4.7K C103 1u
N602 24C08
C106 0.01u R647 4.7K C104 1u C105 47u SCL 8 7 6
2 C108 0.01u C302 10u C303 SW 10 1 5 3 GND1 4 GND1 1u 6 C117 0.01
SIF2
6
Rin
Rin
R109 27
BL
GND1
GND1
GND1
GND1
GND1
GND1
4
Vr.IF
VCCD 53 5v SDA 52
C528 470P
R527 680
CIR
R672 1k
3
AGC.S.C
54
GND1 R553 1.5k/0.5w L502 100U GND1 R505 15k/2W
VD526 IN4148
GND1 D102 IN4148
GND1
GND1
V605 GND1 c1815
GND1
GND1 GND1
VD527 IN4148
V606 C1815
AGC.P.C
GND1 V534 A562 V501 C2482
VD553 S5295 GND1 L501 39u
R628 4.7K
R629 4.7K
R117 2.2K
33v R614 33k R613 33k
R615 R612 33k
15k R668 4.7K R669 4.7K R605 4.7k R604 4.7k R656 4.7K R602 100 52 R601 3.3K 51 SYS1 V603 BH2369 SCL1 2 VT SDA1 1 R603 100 R686 1K R610 5.6K C614 470P 50 SYS0 R685 1K 49 AGC SCL0 4 SDA0 3 R687 100 R650 100 R655 4.7K C610 150P
R533 470
C503 10U
R609 4.7K
P N GND1 R348 100
8
7
6
7
PIF2
SLPF
50 10K R322 2.2K R326 10 R319 C323 GND1 2.2u R321 R320 R318 8.2K 4.7K V OUT 220K VD301 IN4148 VD440 BCL 1N4148 VD302 SANDCASTLE IN4148 H OUT
R302
1k 9 IFPLL HOUT 48
C304 0.47 C305 1000p
C611 0.22u
C613 0.1u
C612 0.1u
C328 0.1u
R664 4.7K R657 4.7K V601 C1815 L302 22u
10
GNDIF
VERT BCL/SAF
47 1K
VD525 IN4148
V533 A1015 R506 220
V502 C1815 C508 470P R507 680
GND1
GND1
GND1
GND1
GND1
GND1
GND1
GND1 R682 100
5V-1 L303 3.3u
5V-2
AM/FM.O VccIF 5v VCC1
46 8V V308 c1815 R338 100 44 C322 10u C321 0.01u C320 47u
48 R665 3.3k R666 3.3k
N601 SDA55XX SDA5550(TXT)
12 C309 47U R305 1K Z301 T4.5M R332 120 V301 c1815 R330 330 T301 TRF1062 R333 120 R334 120 C308 0.01
45
5
GND1
8 VEE
7 VEE
6 INH
5 1Y
4 3Y
3 COM2
2 2Y
1 0Y
GND1 R555 4.7K GND1
R337 330
47 BU R674 100 46 BH
6 SYS1 SYS0 7 9 10
3X 11
0X 12
COM1 13
1X 14
2X 15
VDD 16 GND1 L304
14
EXT. AUDIOIN PIFLC1
GND1
43 GND1 42 C318 4.7n
R336 470
N302
C4052
GND1
GND1
13
INTCVBS OUT CVBSO1
GND1 GND1 1 GND 2 3 HEATER 4 5 200V
XP502
C
C
R675 100 45 BL 8 L606 22u 3.3v L605 22u R606 L608 8.2u L607 22u 330 R622 100
X1/VAMP/ 15 CHROUT 16 PIFLC2 CLPF 41
GND1 C319 0.1u
GND1
GND1
3.3u
GND1
C659 47u
C604 15P
C603 0.01
C658 47u
L604 22u
44 VDD3.3V
VDD2.5V
9
C339 0.01
R335 180
Z302 T6.5M C312 100u L305 GND1 3.3u
R317 8V 17 C310 C311 0.01 V302 c1815 18 R308 220 0.47u 19 GND2 XTAL3/ BTUN OSDFB 38 C317 C313 1u L/R IN 20 CVBS2 37 CVBS1 XTAL2 39 GND1 GND1 VCC2 XTAL1 40
27K Z306 4.43M Z305 3.58M R351 10K
GND1 C660 47u L603 22u
GND1 C661 0.01
43 VSS 0V GND1 42 VDD2.5V
VSS0V
10 GND1
GND1
GND1 C616 47u
GND1
VDD3.3V CVBSIN 1.2Vpp VDDA2.5V
11
C615 0.01
VD351 IN4148 VD350 IN4148 GND1
R440 22K
N401 TDA8174
9 10 11 12 13 14 15 16 V.RAMP V.SYNC V.AMP V.FLY VCC1 VOUT GND POWER 1 VCC2 2
GND1 R631 220
GND1
41 BLANK
12
C654 GND1 0.1
GND1
Z303 T6.0M
GND1 C653 150p R624 10k R617 4.7K 2.5v Z304 T5.5M GND1
V2 IN
R309 180
0.1u
GND1 FB C316 0.1u R C315 0.1u G C314 0.1u B
R350 2.7k
C657 0.01
R633 220 39 G R635 220 38 R R634 470 R636 470 R638 470 C668 100p C667 100p C666 100p C665 100p R632 470 R637 220 KEY 15 VSSA 14 GND1
GND1 R646 68 R640 1k
GND1 R645 150 S601 P+ R644 220 S602 P-
GND1 R643 300 S603 V+
GND1 R642 470 S604 VR641 820 S605 MENU
GND1 GND1 Y/V1 IN S606 AV
21
BSC
ROSD
36
11 IN+ 8 SVR 7 IN6 5 MUTE 4 TRAP 3 Vcc 2 OUT 1 C205 470u/25V XS201
10
9
VP
40 B
13
C655 47u
N201
TDA1905
8
7
6
V532 C2482 5
R554 10K
C552 220U/16V
GND1
GND1
R550 100K/0.5W
R552 10K
GND1 GND1 11
C550 10u/250V
VD501 IN4148
R551 4.7M/0.5W
V602 C1815
GND1 GND1 GND1 GND1 GND1
8
TAGC
LFB/ 49 SSC
GND1
GND1
R534 1.5K
R663 4.7K
2
Z101 K2959M
PIF1
SCL 51 R323
SCL
5
R503 3.9K
R508 2.7K/0.5W
GND1 R501 470
GND1
4
3
22
Y/CVBS3
COSD
35
GND1 R432 120K R431 10K C433 47n C408 10u GND1 R412 2.2 C431 47K C450 0.1u C460 100u/35V R433 22K C424 10u R435 C436 0.47 GND1 GND1
C IN
C211 2.2u
37
VDDA2.5V
STATAV1
16
GND1 R625
GND1
GND1
GND1
GND1
GND1 24 R331 330K C331 1u APR Icath 33
R207 18K
R203 3.3
GND1 GND1 GND1 GND1
GND1 GND1 GND1 GND1 L602 22u C606 33p C663 47u C664 0.01 36 VSSA0V GND1 35 XTAL2 18 STATAV2 17 BEXT R328 100 R327 100 R339 100 R340 100 C338 C337 0.1(M) 0.1(M)
R314 R313 25 BEXT ROUT 32 R312
10K 470 ROUT R349 47K SOUT R206 10K Icath
C204 2.2u
C207 47u
23
SVHSC
BOSD
34
1 VD421 S5295G 8 ohm/3w 1 R204 1K C202 0.1u
2
GND1
4.7K R626 4.7K
GND1
GND1 26 GEXT GOUT 31
C206 2.2u C201 47u
V607 A1015 R616 R658 1K C618 47U R618 4.7K R627 1K R673 390 L601 22u
GEXT
4.7K
GND1 C605 33p C628 0.1
Z601 6M 33 RST VS 20 VD602 IN4148 VD601 IN4148 R654 4.7K C608 1000P R652 4.7K R653 10K C607 1000P R651 2K
REXT
27 REXT C336 0.1(M) 28 R341 20k FBEXT
BOUT
30 R311
GND1 BOUT 470 GND1
C209 1000P
GND1
GND1
34 XTAL1
HS/SSC
19
470
GOUT
2 GND1 XS202
GND1 GND1
GND1
GND1 R436 1.5K R439 1.8K
FB
NC
29
GND1 R205 1K POWER-OFF MUTE
V202 C1815
32 PAL/NTSC GND1 31 MUTE
AV1
21
C203 0.1u
24V
R208 10k V201 A1015 R202 1k
AV2
22
R623 4.7K V.SYNC R670 4.7k H.SYNC
GND1
GND1
GND1 C208 470u/25V
GND1
GND1
C435 1000u/25V R444 10
30 VDD3.3V R620 4.7K C662 47u VD619 IN4148 C617 220P R619 4.7K
SERVICE
23 R621 4.7K
VD201 1N4148 GND1 C210 470u MUTE L404 12uH V-SYNC GND1 GND1 V-AMP-ADJUST V-DRIVE R413 2.2/1W R438 22/1W R453 2.2K
29 VSS0V
IRIN
24 R639 100 25 3.3v VD423 IN4148
C419 0.1/M
GND1 GND1
GND1 GND1
470u/35V
C471 100u
R437 1.8K
R416 330/1W
GND1
GND1 R608 1k
GND1 GND1 28 STBY
4
27
WOOFER
26
V
1 V604 A1015 R671 100 R660 4.7k
2.5v
N606 LE25CZ
N605 LE33CZ
power 5V-1
N903 LA7805/0.1A
R926
R454 56k C417 10u R426 15k R447 56k VD414 6.8v VD415 IN4148 V410 C1815 R449 56K R441 330/0.5W VD410 12V/1W C473 47u/35v VD411 IN4148 GND1 C472 1u
3
2 R684 2k 33V
2 3 C626 47u C627 0.01 R659 100
1
3
C631 100u
1
C632 100u
3 2
1
N905 LA7805 C601 100u 5V-2 R936 4.7/2w
3 2
VD936 33V C936 220u C954 47u/50V R925 15K/2W GND1 GND1
1
R448 18K C418 100u 220/1W V409 A1015
GND1
2
GND1
R451 3.3K
3 XS601 GND1 4
N603 HS0038A2 GND1
XS401
GND1
GND1 5V-1
GND1
LED
GND1 C941 220u GND1
3 2
GND1
1
GND1 R410 24k
GND1
GND1
B
GND1 5v-1
GND1
C917 2n2/AC400V R921 8.2M/1WGND1 VD904 BYV262E L905 C924 470/1KV GND1 2 VD901 RGP10MT VD907 RU2 GND1
VD918 IN4148
GND1
2
R406 220/2 L401 51uH
B
GND1 GND1
GND1
GND1
R404 *
L405 *
14 C906 4700P/500V L901 GND1 C904 470/400VAC 2 C908 4700P/500V VD908 CHR208 VD909 CHR208 C901 220/400V R916 820K/1W R918 270K/1W C911 33n/630V R920 12K C918 5n6 R905 15K/3W 8 R904 15K/3W
L906 60uH VD422 IN4148
VD406 IN4148 STANDBY C406 0.47/200 PROTECT VD417 IN4148 R423 2.2K/2W C426 150/2k VD405 IN4148 GND1
VD409 S5295G
6
R409 10K
C909 470/400VAC
R901 5/270V
T901
C923 100u/160v
108V
H.DY
R408 10K/0.5
C409 1u/160V GND1
1
C905 4700P/500V
C930 1000u/25V 18V
C907 4700P/500V
1 R421 0.68/1F GND R401 1.0/2WF C421 GND1 470/500 2
XS402 TJC2-5
HEATER
GND1
RT901 18 0.10/AC250
VD910 CHR208 C902
VD911 CHR208 C916 0.1
L903 7
C928 470/500 GND1 VD905 S5295G 4 C926 1000u/25v
R935 4.7k
1
3
2 C910 821/2KV V901 D4N60C2 R902 4.7K C912 221/500V
11
VD413 8.2v
R430 18k
VD412 IN4148
3
N901
5
R903 47
4 C430 100u H-DRIVE R427 20K R429 12K C428 10u/50
TDA4605
17
13V
R951 6.8/2w VD916 IN4148 R923 1K 8V
AFC C425 470 VD407 RU2 26V R424 0.68/1F C427
L902
R915 15K/2W 4 6 1 8
10
VD403 S5295G
R940 10K
GND1 R402 3.3K/5 C411 1n2/500
GND1
GND1
GND1
C422 10u/250 GND1
5
200V
7 GND1 V902 A1015 C914 39n
R415 1K
C925 470/500 GND1 R930 1.5k
R933 1k/0.5W
9
6
D0
H.V
AC INPUT
2 C903 0.10/AC250 R917 15K/2W R913 2.2K R914 220 C931 0.01 C919 2.2u/50V R919 10k C913 47/50 VD902 S5295G R906 68/3W VD903 S5295G
16
1
C920 1u/50V GND1 R924 47K GND1 R932 3.9K GND1 GND1 V904 C1815 GND1 GND1 C937 10u C927 47u V905 A910
3
R403 4.7K/0.5
C429 C935 220u GND1 V402 2SD2499 C412 220/500 T401 R0710 L402 C403 3n3/1K6 C401 4n7/1K6 C402 3n3/1K6 1000u/25V
470/500 GND1 GND1
4 D0 8 R0 R0 1 RPV0 2 D0 R0 SCREEN RPV0 R0 FOCUS
R931 68k/1W
2
GND1
1
S901
F901 T2A/250V
C915 1u/50V
4
1
VD914 6.2v VD915 1N4148 GND1 GND1
R934 1k GND1 V906 A1015
RP901 1k
N904 L7808
GND1 V401 2SC2482 C413 56n/200 GND1 GND1 GND1 GND1 GND1 R418 * GND1
GND1
GND1
108V C459 10u/160V GND1 C414 56n/200v GND1 3 7
3 R907 1K N902 PC817B
2
T402
N1603
1. To essure product's safety,please replace the component with !
symbol with the
A
41002616
A
same model specification,as these components are important for product's safety. 2.Circuit are subject to change without notice.
Title Size A Date: File: 1 2 3 4 26-Jun-2003 Sheet of P:\PCB \..\K2166AXT1.S01.sch Drawn By: Number Revision