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LiVan

Доработка PSU (уменьшение тока LED подсветки) разных моделей TV

LiVan

Доработка PSU (уменьшение тока подсветки) разных моделей TV.

Пишем подробно,  обязательно с лично снятое фото, как  вы делаете доработку по уменьшению тока подсветки.

В своем сообщении указываем:

1.Модель телевизора

2. Модель PSU

3. Драйвер светодиодной подсветки

4. Участок схемы или фото платы где произведена или требуется доработка.

5. Показание амперметра до и после доработки по ограничению тока подсветки.

Перед публикацией обязательно проверьте нет ли уже точно таких же данных по доработке  PSU (уменьшение тока подсветки)

Если данные в теме уже есть не нужно их дублировать, пишем только если у вас другой способ уменьшить ток подсветки.

Message added by LiVan

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ROMSAT 32HX1850T2

Panel: CX315DLEDM

main: P75-3663SV6.3

LED Driver: OB3353CP

Выходное напряжение на подсветку 73,6 В, ток 410 мА.

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(Было: Rт=2,49/2,49/2,49/1,8 )

 

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SATURN TV LED32T 

Panel: MT3151A05-1-XC-7

main: TP.VST59.P83

LED Driver: OB3350CP

Внутри три линейки светодиодов по 7 LED (6 V)

Выходное напряжение на подсветку 42,7 В, ток 151 мА на канал (здесь три канала).

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(Было: Rт=1,5/3,3/4,7/4,7/ 4,7 Ом).

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Posted (edited)

FUSION FLTV-40K62

MAINTP.VST59S.PC1

PANEL: F3M14212G1A...

 LED driver:  OB3350CP

4 линейки PB11D788173BL042-002H   12 led*3V, включены параллельно  2 группы по две линейки 

замена 3 led.

ток 280 мА

удалил 2 резистора из 4  (см фото)

ток 145 мА, изображение хорошее.

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Edited by mari
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ROMSAT 32HSK1810T2

Panel: K320WDC2B

main: MSD6A348-T5C2

LED Driver: OB3353CP

Внутри две линейки светодиодов по 6 LED (6 V)

Выходное напряжение на подсветку 36,4 В, ток 580 мА.

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(Было: Rт=2,2/2,2/3,6/3,6)

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Posted (edited)

DEXP  F32C7000B

MAIN  TP.S512.PB83

Panel: BOEI320WU1

3 линейки GC32D09-ZC14F-05  9 led*3V включены последовательно, заменил все сд.

LED driver: SN510P

ток 350 мА

удалил 2 резистора из 3-х

ток 135 мА

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Edited by mari
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Supra STV-LC28T400WL

Main: hk-t.sp9202p53

Ток подсветки до доработки 270mA

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После доработки 130mA

 

Необходимо удалить резистор отмеченный на фото

 

 

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Posted (edited)

DAEWOO L32V680VKE
main MSD3663-T5C2
panel K320WDC1B
led driver OB3353CP

2 линейки 6в*6led  в параллель , заменил все сд.

общий ток 600 мА (300мА на канал)

удалил 2 резистора (см.фото) общий ток стал 300 мА (150 мА на канал)

изображение хорошее

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Edited by mari
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DEXP U40B9000H,

PSU:RSAG7.820.5687 / ROH, 

Panel:HD396DU-B01(010)S15, 

LED Driver:LX27901

Чтобы уменьшить ток с 390мА до 260мА нужно удалить два резистора как на фото 

 

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lg  49uj651v-za

PANEL- lc490dgg

PSU- lgp49d-17u2

Изменение тока подсветки изначально  450mha после доработки ток стал 160mha

требуется убрать 3 резистора и поставить 2 по 5 ом смотреть на картинке .

где оранжевый квадрат там стояло 2 резистора по 3.5 ом  уберем оба и ставим один на 5 ом .

где розовый круг стоял один на 2.5 ом  уберем его  и ставим на  5 ом  .

 

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SUPRA SIV-LC24T440WL 

VER V2R03

PANEL-C240F15-E2-A

MAIN-JUC7.820.00143963

LED DR-OB3350CP

планки 2 шт лед 3528 с широким отриц. 3в

уменьшение тока изменением выделенных резисторов .

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Thomson T22D16DF-01B

PSU: tp.s512.pb83

Драйвер:  Sn510p

Ток подсветки был 280мА, после замены 2 резисторов стал 140мА. Выделил красным

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Panasonic TX-42ASR600

Main: TNP4G568

Inverter: TNPA5935

БП: TNPA5916

Шим: bd9483f

Для того чтобы ограничить ток подсветки

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Шимка двухканальная. Подробности на картинках.

 

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SUPRA  STV-LC32LT0010W

MAIN  CV512H-U42

Panel KM0320LDRH0037

 led driver: BIT3267 

LED  CC02320D570V12  ( 2планки 7led*6V, включены последовательно)

ток 300 мА

удалил 2 резистора из 4-х в группе(см фото)

ток 150 мА

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SAMSUNG UE40D5003BW

Panel: LTJ400HM03-V

main: BN41-01702A

PSU: BN44-00473A 

LED Driver: SEM5025

Выходное напряжение на подсветку 206 В, ток 290 мА.

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Edited by Alex1101
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SAMSUNG UE40D6510WS

Panel: LTJ400HV02-J

main: BN41-01587E 

PSU: BN44-00427A 

LED Driver: SEM5025  - 4 шт. (4 канала)

Выходное напряжение на подсветку 216/68/68/19,5 В (такое на всех 4-х каналах), ток 86 мА на канал.

При включении ток 118 мА.

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ERISSON 32LES95T2SMS

TP.MS338E.PB803

Панель без наклейки. 12свет. 6v

удаляем 2 резистора 1R60 указанных на фото.

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PHILIPS 47PFL7108K/12

Панель: LC470EUF-PFF1

PSU: FSP140-4FS01

LED driver: BD9479FV  (6 каналов)  

Выходное напряжение на подсветку  68,7 В,  ток 108 мА  на канал.

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SAMSUNG UE32C6200

Panel: LTF320HF02

main: BN41-01444C

PSU: BN44-00355A

Led Driver: SELC2010

Внутри четыре Led-стринга (включены последовательно на выходном  разъеме)

Выходное напряжение на подсветку: 251/205//205/159//159/114//114/71 В (по pin разъема CNL801), ток 132 мА.

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Edited by Alex1101
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Erisson 32LES73

Panel: SDL320HY

main/PSU: 5800-A8M57A-0P20

Led Driver: TPS61196

 

Внутри 21шт 3-х вольтовых светодиодов, по 7шт на 3-х стрингах последовательно. LED-драйвер TPS61196, 6 каналов в параллель, изначальный суммарный ток 321мА.

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