康佳LC-TM3211液晶电视只亮黄灯,三无故障维修记录。电源STA200TV 主控芯片TDA16888。

1

2

D6 HER208 H

T2 4 R15 5.1R/1206 D4 1N4007

R80A 220K/1206 R80C 220K/1206

R80B 220K/1206 R80D 220K/1206

2SC2328A损坏B-E短 3路丆拆除后使用7815为VCC1提供15V。解决黄灯3无故障。

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T25 ZD5 P6KE200A 2 D3 FR107 D16 1N4148 B3 3*6mm Q9 2N60 6 7 1 8 R25A R25B 22 22 3*6mm B4 R19A R19B 22 22 D23 D24 C21 102/500V SR540*2 C23 2200u/10V C14 D8 HER104 C14 102/500V L5 C20 C19 100u 100u L6

6 R95 68R+30VSB+5VSB

7

8

R81A 820K/1206 R81B 820K/1206

R21 47R

R20 510R C26 R31

R22 2.61K H

U3A

104/0603 10K/0603 C22 104

8

C49 22u/400V

C8 22u/35V Q14 2N2222

R89 2.7K/0603

Ref U2 1 Com

Vcc 6 Gate

7

IC3843

2200u/10V

C25 104

R22A R22B 270 270

U6 TL431 R23 2.43K GND

Vcc1 U3B

C6 472/0603

G

5 D1 1N5406

R7 R35 D5 HER104 22R/1206 4.7K/0603 C7 100u/50V C16 ZD8

Sense 2 5 4 FB GND3 Rc/Rt C42 103/50V

3843B C9 471/25V 0603 Q3 11N60C3

R90 33R/1206 D14A R88 1.2K/0603 R87 1.5R/2W C17 222/500V R27A 33R R27B 33R D15A L2A 34Ts

+24VA L3 C16A C16B 1000uF/35V

+24VCS+24V C13 1000uF/35V MR1 R24E 3.3k C10 104/SMD GND+12VCS+12V MR2

G

474/50V 15V/1206 L1 D1 DDEI806 R12 2.2R/0603 Vcc2 D2 1N4148

Q1 11N60C3

Q2 11N60C3 D7 1N4148

HV

F

D9 1N4148 R4 39R R8 22K

R16 2.2R

R10 2.2R

R6 39R

C1 220uF/400V R11 22K Q4 NPN

T3

R3 39R/0603

R17 22K

D11 HER208

R26A 33R C18 222/500v

R26B 33R D11A

L2B 17Ts D10A MBR20100

L4 C15 C12 R23A 1.5k R23B 1.5k R23C 1.5k R23D 1.5k R23E 1.5k

1000uF/16V

C11 104/SMD GND

F

T3 R29 10R R1 Q4 NPN R30 10R CX3 0.47u/400V C2 220p/1KV Q3 PNP Q3 PNP R13 39R R19 22K C5 224 R18 2.2R D10 1N4148

Q3 11N60C3

L

T1 R14 1K D12 HER208 CS

+5VSB R94 1K 7 D20 SMD+30VSB

R72 OPEN 5 U7B 6 R61 OPEN

C59

NI+12VSC

R84 10K C57 102+30VSB C52 104/D R85 390KF R83 390K C51 103/D R86 22K U10 R78 OPEN C50 103/D+12V R82 12K C6 104+24VSC E

A CX4 474/400V E L7

R25 22K

R2 01.R/3W

C3B 220p/1KV BD1 GBU606 D

LM393N电压比较器 ZD6 30V R79 10K D21 SMD

R93 1K R71 OPEN 8 R69 OPEN

R9 22K

R34 10K C56 331 C47 102 R75 18K R74 OPEN+30VSB D

3 1 U7A 2

R46 4.7K LF4 A CX2 0.68u/250Vac R10A 510K R48 3.9K R47 20K R5 39R/0603 C4 181/1KV R10B 510K R10C 510K R10D 510K C35 104/25V C38 103/50V Vcc1 R24 39R C27 10u/25V Q5 PNP Vcc2 U5B

R77 240K C45 104/DIP

U9 C44 103/DIP

4

R76 390K

R49 15K C39 102/50V

R73 15K D18 SMD ZD4 13V+12V D19 SMD D17 SMD+24VA R64 27K C43 104/D R70 4.7K C45 104/DIP R33 1K/1206 U4A PC817 R59 27KF 3 2 R91 6.8K C41 104/DIP Title C40 47u U5A Size Number 29-Jun-2005 Sheet of F:\WORK\WORK2005\STA200TV\sch\STA200TV.DDB Drawn By: 7 8 R92 15KF D14 SMD+5VSB U11 TL431 R55 27K R54 27K ZD3 27V+24V C

R45 3.9K R50 68K

C37 104/50V

C

CY5 102/250V LF1

CY6 102/250V

C32 101/50V R65 22K C55 104 Q7 PNP R51 10K C54 104 R67 4.7K 7 D15 SMD R66 4.7K U8B

R62 56K 5 6 R63 15K

R68 220K

F-IAC R39 56K 20

Vref

F-CC

F-CS

G-S

F-CL

GND

F-GD

VCC W-GD R38? 10k?

10

1

2

3

4

5

6

7

8

9

TDA16888 AUX-VS F-VS 19 F-VC 18 F-FB 17 ROSC W-RAMP W-IN W-SS SYNC W-CS 16 15 14 13 12 11

ZD1 15V/0.5W

A CX1 0.68u/250Vac ZNR1 0

7471 B R18A 270K R18B 200K R40 20K

Q8 SOT-23

1.78V 8

R42 100K

R17A 270K

R41 12K

R18C 200K

C36 220p

R26 120K

B

R8A 620k/1206

R9A 620k/1206

THR1 F1 NTC3D-15 5A/250V

C34 224

R44 82K

C31 100p

CS R37 1.2K

C53 104

R52 3.3K B

C33 474 R43 24K/1%

CY1 CY2 221/250V 221/250V

R17B 220K

Q10 7002

U4B PC817 R36 22K Q6 SOT-23 D13 270R

R57 220K 1 R56 4.7K

C30 472

C29 C28 104 1000p

U8A

R58 100K/0603

R53 2.2K/0603

R18D 200K

on/off

R27 240K LF2 R17D220K HV R16A 560K R17C 220K R16B 510K R16C 270K R16D 150K ZD2 27V/0.5W R10A1 C48 680K 474/50V R10A2 680K 3 R10A3 620K 4 R10A4 620K A

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R60 15KF

STA200TV A1 Revision A02 A

A

N CON1 1

L

2.5V 5 6

B Date: File:

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