Toshiba 15LV505 service manual Backlight Inverter Schematic Diagram, High Voltage

8

A B C D E F

BACKLIGHT INVERTER SCHEMATIC DIAGRAM

(POWER PCB)

G H

8

7

6

HIGH VOLTAGE

Q7005

FSS275-TL-E

0.01 B 6KV10P SL

0

S

D

12.4

33 1/4W 500V0.0022 B

0

S

D

12.4

D7003

0

S

D

12.4

T7001

1SS133

8135109G

D7014

R7049

IS_DET1

R7035

2.6

G

D

12.4

12.4

3.1

MA111

10

FROM/TO POWER

22 1/4W

1

8

F7001

1243

8756

C7018R7039

C7030C7031

D7017

MA111

D7019

MA111

D7023R7045

MA111680

12.6

INV+B

0

1206FA5A-T

2

7

VS_DET

5A 32V

12.6

0

INV_SGND

3

6

Q7004

FSS275-TL-E

MA111

D7018

D7024 R7046

0

S

D

12.4

12.4

3.1

D7013

4

5

R7050

IS_DET2

0

S

D

12.4

MA111

10

INV_GND

D7006

3 21

6 78

R7038

B 1/4W33

C7022

10B 25V(3216)-

C7032

0.01 B

D7020

MA111

MA111680

W809

0

S

D

12.4

GND

POWER ON SW

1SS133

C7017

500V0.0022

6KV10P SL

Q7002

R7036

2.6

G

D

12.4

C7033

POWER_ON_H

KTA1505S-Y-RTK/P

C7026

10 B

25V(32-16)

4

5

W819

12.9

12.8

22

1/4W

NC NC NC NC NC

NC NC NC NC NC

CD7005 E82E0604

HV 1

NC

NC
NC
NC
NC
LV	7
LV	8
NC
NC
NC
NC
NC
HV	14

CN1

HV	1
LV	2

LV	2
HV	1

CN2

7

6

5

4

3

2

1

R7015 12.2 HIGH VOLTAGE

22K

R7016

4.7K

0

POWER ON SW

D7015

1SS133

Q7001

5.9

KRC103SRTK

0

INVERTER COTROL IC

IC7001

BD9882FV-E2

2.1

DUTY

VCC

12.8

C7011

1

20

25V 1 B

R7009

R7012

1.5

BRT

FAIL

3.1

47K +-1%

220

+-1%

2

19

C7012

C7004

R7024

1.3

0

0.01

B

0.047 B

3

BCT

N1

18

10

R7010

1.5

RT

0

33K +-1%

4

PGND17

1.7

R7007

R7013

0

R7023

150K +-1%

82K +-1%

5

SRT

N2

16

10

C7003

1.1

0

C7008

C7002

0.0047 B

C7007

0.0047 B

0.1

6

CT

SCP15

0.47

B

R7020

100K

D7011

UDZSNP3.9B C7020

0.001 B R7048

4.7K

C7035

0.001 B

R7054

470K

R7044

1.5K

89 7

IS

COMP121314

330P CH

0

INV GND

SS

0

C7009

0.1

B

0

FB

REG

3.1

C7010

R7047

D7004

C7024

0.1

B

4.7K

1/4W

1SS133

0.001 B

1.5

R7017

R7019

D7012

D7005

R7041

D7008

IS_DET2

0.1

10

VS

STB

11

10K

10K

MA111

1SS133

470K

1SS133

R7005

5.1

R7018

9.1

4.8

2.8

10.3

2.8

4.8

9.1

FROM/TO POWER

100

R7011

R7043

6.8K

ICBACK LM2902DR

1

2

3

4

5

6

7

10K

R7014

Vcc

15K 1/4W

FEED IC7002

LIGHT_CTL

100K

1/4W

D

3.7

FEED BACK

R7056

GND

R7001

R7003

R7008

0

Q7003

2.7K

4.7K

47K

G

2SK3018T106

R7002

18K

C7001

0.1B R7006

S

1%-+1K1%-+270

4.7K

14

13

12

11

10

9

8

5.6K

0

C7013

B0.001 R7021

4.7K

R7025R7026

R7030

1%-+68K

R7033

1/4W560K

9.1

4.8

2.8

0

2.8

4.8

9.1

INV_SGND

D7001

R7042

D7007

IS_DET1

R7004

INVERTER_H

1SS133

470K

1SS133

1K

D7002

C7021

SGNDINV

DET1IS

220

DETVS

100K+-1%

R7034

56K C7015

2.2B

C7006

0.047B

D7010

1SS133

C7019

0.001B

R7040

470K

0.001 B

UDZSNP5.6B

R7022

R7032

5A 32V

CAUTION

:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,

CAUTION:F7001 IS MANUFACTURED BY SKYGATE CO.,LTD., TYPE 20N.

CAUTION

ATTENTION

ETANT

:SINCE THESE PARTS MARKED BY ARE

:LES PIECES REPAREES PAR UN

REPLACE ONLY WITH THE SAME TYPE FUSE

5A 32V(F7001)

CRITICAL FOR SAFETY,USE ONES

DANGEREUSES AN POINT DE VUE SECURITE

ATTENTION:POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

DESCRIBED IN PARTS LIST ONLY

N’UTILISER QUE CELLS DECRITES

DANS LA NOMENCLATURE DES PIECES

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

N’UTILISER QUE DES FUSIBLE DE MEME TYPE 5A 32V(F7001)

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

A

B

C

D

E

F

HIGH VOLTAGE

PCB240

CEH421

CAUTION: DIGITAL TRANSISTOR

G H

5

4

3

2

1

H-33 H-34