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الشاشة سوداء لا تعمل وجهد التغذية واصل بشكل جيد 

عند فص التغذية عن الشاشة تومض الإضاءة ومضة بسيطة 

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Hello AutoGen_17059,

Please try to discuss your question in English language. This is an international community and we try to focus on one language. Posting in English will help to generate more replies to your question.

This is the translation of your post (via google translate):

AutoGen_17059

My screen is stuck.

The screen is black and not working, and the power supply is working properly.

When the power is disconnected from the screen, the light flashes briefly.

Please help.

Kind regards, Moderator_Lan 

As far as I know the S7-200 Smart range of products is actively marketed and sold in India.
https://www.siemens.com/in/en/products/automation/systems/industrial/plc/simatic-s7-200-smart.html

According to the information available from the Siemens support site, the following contacts are available:
(low confidence level) https://mall.industry.siemens.com/aspa_app?nodekey=key_9180880

As for the problem description, it seems as though someone that knows HMI repairs may need to have a look.