EMERSON LC863320A, LA76810A, LA7841, LA4225 Diagram

12V
B9 5V
B6
L909
EW0130KE
U902
R717 1K
SW701 SW702
CH+
R701 150K
R727 470
VD701 TRL-R
25" XC-WH64A09
29" XC-74-CJ-A/B
R104
66K
R702 27K
R722
1.5K
XS500 TJC2-2A
1
2
SW501
C101
16V/100u
C103
16V/4.7u
C105
16V/4.7u
C107
16V/4.7u
C106
50V/1u
CH-
KFC-A04
N101
ET-5SH1E-CV302
+
+
+
+
+
R716
5.6K
C711
FK0.47u
SW703V+SW704
R704
R703
4.7K
8.2K
R723
8.2K V702
2SA1015Y VD703 HZ4A2
R728 470
V703
2SC1815Y
V705
2SC1815Y
RT501 MZ72-18
L502
LF-01
R501
1/2W/220K
AC250V
400KM470S
IF
BM
BL
BH
UB
TU
AGC
R715
5.6K
C710
FK0.47u
V- MENU
R721 10K
VD505 RS208S
C503
1KV/1200
C502
C501
F501
T3.15A
C532
R103
47K
B1
110V
FK0.47u
SW705
R700
3.9K R769
15K
R726
4.7K
R734 10K
R502 10W/3.9
630V/0.1u
5.6K
R511
630V/0.1u
R714
5.6K
C709
SW706 AV/TV
R705
2.7K
R731 10K
R733 1K
C505
1KV/1200
R718
2SJ8.2K
R767
22K
2SC1815Y
C513 4700
V511
2SA1015Y
R706
C729
V704
R730
10K
VD518
1N4148
R105
3.9K
R712
1.5K
0.01u
R771
10K
22K
V701
R523
2SC1815Y
L503 LF-01
R720
10K
VD519 HZ7C1
3.3K
1 2 3 4 5 6 7 8 9
UPC574
R707
680
N501
PC817B
C507
400V/220u
N103
LA7910
N705
R711 27K
L701 39uH
+
R726 270K
VD514
VD517
VD516
10K
R729 150K
R732 82K
R517
DJ22K
G701
R708
16V/2.2u
1N4148
ES1
1N4148
1K
R515
+
C707 180
R710 33K C705 18
32K
C701
+
C714
C518
1000KK100uE
B5 5V
C708
50V/4.7u
+
16V/47u
C703
0.01u
R725 330
50V/1u
R519
2.7K
C704 15
C713
R520 1/2SJ120K
22
FJ0.015u
R746 22K
R748 22K
R735 10K
R750 22K
R752 22K
C706
220
R709 390K C702
0.01u
+
C514 FK0.1u
V512
2SC3807
1
SURROUND
2
50/60
3
ALARM
4
WOOF-VOL
5
VOLUME-L
6
VOLUME-R POWER控制信号输出
7
调谐电源输出
8
9
GND
晶振端口
10
晶振端口
11 12
电源(+5V)
13
板上控制键输入
14
AFT输入
15
SIF2
16
SIF1
17
CPU复位
18
OSD滤波
19
CHROMA
20
行脉冲输入
21
场脉冲输入
T511 25" BCK-130-06 29" BCK-4901-34
C516
2KV/680
R525 2SJ39
L504 Z2073
V513
2SC4460
R510 2SJ0.22
C517
FJ0.015u
5.6M
C535
1000P/AC400V
N701
LC863320A-5R76 LC863328A-50J1
WOOFER ON/OFF
消隐信号输出
C534
AC400V/470P
11
3
10
7
12
1
13
14
2
R532
5.6M
波段选通
波段选通
ENGLISH
AV1
AV2
静音控制
SIF
遥控输入
SD输入端
S-VHS
SAFTY
SCL1
SDA1
SCL0
SDA0
蓝信号输出
绿信号输出
红信号输出
VD552
C552 2KV/470P
VD551 RU3AM
8
VD554 EU2Z
C554
9
1
EU1C
C551
2KV/470
VD553
R562 2FJ1
+
25V/1000u
42 41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
ES1
1KV/470
ES1
VD555
C565
B5 5V
R756 22K
R754 10K
R742 3.3K
R740 R738 4.7K
R736
C562
250V/22u
+
160V/220u
+
R560
1SJ15K
+
25V/1000u
1 2 3
+
R745
C561
C563
25V/1000u
R569
C564
17V
N553
AN7805
220
4.7K
4.7K
+
1FJ2.2
B2
创 佳 牌 (
R764 22K
R763 22K
R762 22K
R761 22K
R760 22K
R759 22K
R758 22K
R757 22K
R766 100
R755 22K
R753 22K
R751 22K
R749 22K
R747 22K
R744 220
R743 3.3K
190V
R552
1/2DJ100K
R551 2SJ47K
RP551
B-2K
V551
2SB892
R565
10K
R564
1.5K
V554
2SB764
R566
10K
R567
1.2K
N551
AN7812
1 2 3
B6
12V
B3
12V
B5 5V
A701
HS0038
R106 2.7K
C719
16V47u
1 2 3 4
V553
2SC1815Y
R553
4.7K R550
1/2WFJ1
R563 2SJ27
B6
R601 10K
R100
100
+
N702
AT24C04
VD562 1N4148
N552
AN7805
+
Vcc
GND
SCL SDA
R554
VD561 HZ6C3
R604 4.7K
C604
16V/100u
1N4148
R117 27K
C720
8 7 6 5
150K
B4
26V
1 2 3
CJ14
+VD601
B6
12V
R116 22K
V101
2SC1815Y
0.01u
B1
130V
R555
1/2DJ47K
R556 22K
C572 10V/470u
机芯) 大 屏 幕 彩 色 电 视 机 电 原 理 图
R602 10K
V601
2SA1015Y
C603
16V/100u
R561
10K
B7
5V
V603
V602
2SC1815Y
C110
0.01u
V552
2SC1815Y
2SC1815Y
R611 3.3K
FK0.022u
R110
R108 5.6K
R1091KR111
W111 J
220
C611
82
C111
0.01u R107
100
C112
0.01u
N601
LA4225
V102
2SC2216
B7 5V
R114 100K
50V/0.47u
C612
16V/10u
R612
470
B6
12V
Z101
F3828L
L102 15uH
R113 100K
B6
12V
VD241 HZ7C2
C401
+
C402
FK0.22u
B6
12V
VD401 1N4148
+
VD402
1N4148
B2
17V
+
C117
50V/1u
R243
270
R400
INPUT
1
R119 1K
R241 100
R242 100
C403
FK0.47u
16V/220u
1/2DJ270
R403 220K
C408 50V/1u
+
25V/1000u
NON INPUT
2
16V/10u
C122 0.01u
C115
16V/100u
+
R120 27K +
C244
16V/47u
+
C404
+
C407
50V/1u
C616
GND
3
C613
25V/1000u
C601
C121 FK0.022u
C120 FK0.022u
C119
0.01u
+
R401
2.2K
C406
FK0.033u
R402
3.3K
C280 100
C405
0.01u
R404 330
OUT
+
C116
0.01u
C118
0.01u
4
C245
0.01u
+
C617
0.01u
VCC
5
2.3
2.3
2.4
6.5
3.8
3.8
0
5
1.9
2.8
4.5
4.5
3.9
0
0
0
0
7.6
2.4
2.4
2.4
0.4
2.5
2.1
5
2.6
0.6
R812 100K
C805
16V/10u
+
R813
82K
1
音频输出
FM滤波
2
中频AGC滤波
3
AGC输出
4
中频输入
5
中频输入
6
中频地
7
中频电源
8
FM滤波
9
AFT输出
10
数据线
11
12
时钟线
13
自动束流调正
14
R输入
G输入
15
B输入
16
消隐输入
17
RGB电源
18
R输出
19
G输出
20
21
B输出
行检测输出
22
场同步输出
23
V RAMP自动电平调整滤波
24
场扫描斜波电平控制滤波
25
26
AFC滤波
行输出
27
R408
2.2K
R802
56K
C801
16V/10u
B6
12V
V802
2SC1815Y
C806
16V/10u
+
R814
47K
N101
LA76810A
SIF输入
SIF APC滤波
SIF输出
外音频输入
VCO滤波
VCO COIL VCO COIL
PIF APC滤波
视频输出
SLK STRETCH FIL
内部视频输入
VCC(VCD)
外部视频输入
GND(V/C/B)
被选视频信号输出
色度VCO
XTAL
FSC OUT
APC2 FIL
SECAMR-Y IN SECAMB-Y IN
GND(CCD/H)
CCD FIL
VCC(CCD)
时钟输出
VCO电源基准
行逆程输入
C126
54
53
52
51
50
49
48
47
46
45
44
43
42 41
40
39
38
37
36
35
34
33
32
31
30
29
28
++
39
3
2.2
2
2.2
2.5
4.2
4.2
3.6
2
2.5
2.7
5
2.6
0
2.5
3.3
2.8
2.7
3.8
2.7
2.7
0
8.6
5
0.2
1.6
1.2
R801 22K
R803 100
C802
16V/10u
L121
15uH
C123
1000
R128 560K
C140 470
ST6019
C137
50V/0.47u
+
R2011K
+
C205
0.01u
C207 FK0.01u
C209 18
R268 1K
C274
0.01u
C275
0.01u
C277
0.01u
C279 0.01
R273
4.7K
R808 1K
R809
R122 330
C125
18
C124 50V/1u
+
50V/0.47u
T101
R204 560K
C204 50V/1u
R207 2M
C208
50V/0.47u
+
C210
C276 16V/10u
+
+
R409 680
TJC3-3A
R804 82
100K
R121
1K
C139
+
R202 1.2K
+
+
C206 16V/47u
+
16V/10u
R271 150
C278
16V/47u
XS801
R127 220
C203
16V/4.7u
R206 47K
R205 22K
G201
JA18A
R272
3.3K
XP801 TJC3-3Y
B902
5W16OHM
AUDIO IN
VIDEO IN
AUDIO OUT
VIDEO OUT
B7 5V
R352
100K
R354 220K
R355
R357 39K
电路图说明
B901
各部位所标的电压值是在接信号
1.
5W16OHM
控制键在正置使用阻为
万用表,仅供参考。
20k欧姆/V
电路图仅说明基本和典型机型,个别元
2.
件或局部电路可能与实际的电路。如有更改,恕不另行通知。
注意
用符
1.
2. 用
元件对整机安全具有特
殊意义,故更换该元件须使用维修手册
规定元件
围起来的部与交接的
理时,须在电视机与交流电源之间连
一个缓器以击危险。
创佳集团公司
DSIA2.025.203DL
B6
12V
+
C803
47K
16V/10u
B4
26V
R353
10K
C354
8.2K
0.1u
+
R356
10K
C355
0.1u
V351
C353
+
V801
2SC1815Y
+
82
C351
50V/47u
2SC1815Y
16V/1000u
C804 16V/4.7u
R351 10
35V/220u
VR352
20K
R364
5.6K
VD351 1N4148
C352
R363 18K
+
VR351
10K
R362
V353
36K
2SA1015Y
V352
2SD880
C312
25V/6.8u
R360
2.7K
R358
3.9K
R361 47K
V431
2SC2383
B6
12V
L350 L601
XS403
R359 1W/3.9
R433
1/2SJ1K
C433
500V/3900P
XP902
B4
26V
26V
C432
500V/1000P
R413 10K
5 4 3 2 1
C451
35V/100u
VD451
EM01Z
L451 18uH
B4
R434
2W/270
35V/47u
+
T431
AD0002
R931
1K
C933
16V/470u
+
+
C931 16V/10u
N451 LA7841
PUMP OUT
+
R451 5.6K
C434
C441
L431
Z0008
R932 15K
+
C444
250V/0.39u
VD411 HZ7C2
R935 39
C934
50V/0.47u
INP UT
VCC 2
C452
25V/1000u
B6
12V
+
160V/1u
R435 47
R412 10K
R933
1.5K
R900 10K
+
NON I NPUT
+
C453
R453
10K
+
C450
16V/100u
R446 220K
L433 Z2003
L432
Z0008
400V/0.039u
R904 330
R914 330
R924 330
+
C932 16V/10u
VD933 1N4148
XP901
VCC 1
C455
500FK10u
C454
50V/1u
1000
3.3K
L441 LX714
R441 1/2SJ1K
V432
2SC5296
C435
1600V/8200P
C437
H-FULSE
ABL
R902 100
C903
CJ56R
R912 100
CJ56R
R922 100
C923
CJ56R
V931
2SA1015Y
V932
GND
OUT PUT
1234567
R452 1
VD452
1Z75
R455
12K
C438
1600V/8200
VD461
VD460
C901
CJ390
C913
C911
CJ390
C921
CJ390
1/4W 33
2SC1815Y
C459
100FK0.1u
R456
39K
C456
50V/2.2u
R458
1K
25" BSC25-02AW13
8 4
6
5
RU4DS
1 2 3
RU4C
B1
130V
V902
2SC2688
V912
2SC2688
V922
2SC2688
K9N
TJC2-1A
R940
4
321
R460
1/2DJ180
R457 12K
+
C457
T471 FBT
(25TB1238)
29" BSC29-22A
TP.G
TEST
VD901 1N4148
R906 390
VD911
1N4148
R916 390
VD921 1N4148
100FK0.033u
2SV2200
R491 2FJ1.8
7
R232 10K
C458
+
R461A
B6
12V
HV
FO
SCREEN
TP.H TEST
1/2DJ120
C231
R908 1/2SJ2.7K
XS901
GZS10-2-108B
11
6 8 9
10
C939
2KV1000
XS402
TJC2-5A
4 3 2 1
B3
190V
50NP1
R918 1/2SJ2.7K
R928 1/2SJ2.7K
4 3
2
1
R233
1/2DJ1.5K
R907 2SJ10K
R917 2SJ10K
R927 2SJ10K
W902
JG0034
XP402
XS401
U901
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