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Incearca Menu sau Input (Source) 1147.

Poate te ajuta acest link. Este pt. proc. TSUMV59.

https://sites.google.com/site/lcd4hobby/6-lcd-as-pc-vga-hdmi-av-tv-display-tsumv59

Procesorul este TSUMV29LU  Am incercat 15-20 de posibilitati de accesare a meniului service, dar fara rezultat......

 

Am sa incerc.....Un menu service m-ar fi ajutat mult !   :26 

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  • 1 year later...

salutare!

am si eu tv-ul asta cu convertorul DC-DC trosnit  , este vorba de FR9888

tv-ul are sursa externa de 12 volti , iar acest step-down convertor , aduce tensiunea la 3,3 volti (de fapt asa banuiesc eu...)

am ajuns la concluzia asta , dupa ce am dat jos FR9888 , si am masurat rezistentele R1 si R2 , care stabilesc valoarea de iesire a tensiunii livrate.

astfel , masurat pe placa (cu convertor demontat) , am R1-26K si  R2 - 10K , ceea ce corespunde tensiunii de 3,3 volti

corect? as putea monta o sursa de 3,3V/2A (LM3,3V 2A)?

 

http://aitendo3.sakura.ne.jp/aitendo_data/product_img/power/DC-DC/DC12-5V/FR9888.pdf 

 

thx!

Edited by mercenarx
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  • 3 weeks later...

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