LG LS340 Series Owner's Manual page 138

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‫ﺍﻟﺘﺠﻤﻴﻊ ﻭﺍﻟﺘﺤﻀﻴﺮ‬
.‫ ﺍﻟﺨﺎﺹ ﺑﺈﺷﺎﺭﺓ ﺍﻟﻬﻮﺍﺋﻲ‬GND ‫ﺍﺳﺘﺨﺪﻡ ﻫﺬﺍ ﺍﻟﻌﺎﺯﻝ ﻟﺘﺜﺒﻴﺖ ﺍﻟﺘﻠﻔﺎﺯ ﻓﻲ ﻣﻜﺎﻥ ﻳﻮﺟﺪ ﻓﻴﻪ ﺗﻔﺎﻭﺕ ﻓﻲ ﺍﻟﻔﻮﻟﺘﻴﺔ ﺑﻴﻦ ﺍﻟﺘﻠﻔﺎﺯ ﻭ‬
‫ ﺍﻟﺨﺎﺹ ﺑﺈﺷﺎﺭﺓ ﺍﻟﻬﻮﺍﺋﻲ، ﻓﻴﻤﻜﻦ ﺃﻥ ﺗﺮﺗﻔﻊ ﺣﺮﺍﺭﺓ ﻭﺣﺪﺓ ﺍﻻﺗﺼﺎﻝ ﺑﺎﻟﻬﻮﺍﺋﻲ ﻭﻗﺪ ﺗﺆﺩﻱ‬GND ‫ﺇﺫﺍ ﻛﺎﻥ ﺛﻤﺔ ﺗﻔﺎﻭﺕ ﻓﻲ ﺍﻟﻔﻮﻟﺘﻴﺔ ﺑﻴﻦ ﺍﻟﺘﻠﻔﺎﺯ ﻭ‬
‫ﻟﻤﺰﻳﺪ ﻣﻦ ﺍﻷﻣﺎﻥ ﻋﻨﺪ ﻣﺸﺎﻫﺪﺓ ﺍﻟﺘﻠﻔﺎﺯ، ﻳﻤﻜﻨﻚ ﺇﺯﺍﻟﺔ ﻓﻮﻟﺘﻴﺔ ﺍﻟﻄﺎﻗﺔ ﻣﻦ ﻫﻮﺍﺋﻲ ﺍﻟﺘﻠﻔﺎﺯ ﺑﺼﻮﺭﺓ ﻓﻌﺎﻟﺔ ﺃﻛﺜﺮ. ﻳﻮﺻﻰ ﺑﺘﻌﻠﻴﻖ ﺍﻟﻌﺎﺯﻝ ﻋﻠﻰ ﺍﻟﺤﺎﺋﻂ. ﺍﺫﺍ‬
‫ﺍﻟﺤﺎﺋﻂ‬
ANTENNA/
CABLE IN
‫ﺍﻟﻜﺒﻞ / ﺍﻟﻬﻮﺍﺋﻲ‬
.Set-Top box ‫ﻗﻢ ﺑﺘﻮﺻﻴﻞ ﺃﺣﺪ ﻃﺮﻓﻲ ﺍﻟﻌﺎﺯﻝ ﺑﻤﻘﺒﺲ ﺍﻟﻜﺒﻞ/ﺍﻟﻬﻮﺍﺋﻲ ﻭﺍﻟﻄﺮﻑ ﺍﻟﺜﺎﻧﻲ ﺑﺎﻟﺘﻠﻔﺎﺯ ﺃﻭ ﺟﻬﺎﺯ‬
‫"ﻣﻦ ﺷﺄﻥ ﺍﻷﺟﻬﺰﺓ ﺍﻟﻤﺘﺼﻠﺔ ﺑﻮﺣﺪﺓ ﺍﻟﺘﺄﺭﻳﺾ ﺍﻟﻮﺍﻗﻴﺔ ﺍﻟﺨﺎﺻﺔ ﺑﺎﻟﻤﺒﻨﻰ ﻋﺒﺮ ﺍﻻﺗﺼﺎﻝ ﺍﻟﺮﺋﻴﺴﻲ ﺃﻭ ﻋﺒﺮ ﺃﺟﻬﺰﺓ ﺃﺧﺮﻯ ﻣﺘﺼﻠﺔ ﺑﻮﺣﺪﺓ ﺍﻟﺘﺄﺭﻳﺾ‬
‫ﺍﻟﻮﺍﻗﻴﺔ - ﺑﺎﻹﺿﺎﻓﺔ ﺇﻟﻰ ﺍﻷﺟﻬﺰﺓ ﺍﻟﻤﺘﺼﻠﺔ ﺑﻨﻈﺎﻡ ﺗﻮﺯﻳﻊ ﺍﻟﻜﺒﻞ ﺑﺎﺳﺘﺨﺪﺍﻡ ﻛﺒﻞ ﻣﺤﻮﺭﻱ ، ﺃﻥ ﺗﺆﺩﻱ ﻓﻲ ﺑﻌﺾ ﺍﻷﺣﻴﺎﻥ ﺇﻟﻰ ﻧﺸﻮﺏ ﺣﺮﻳﻖ. ﻭﺑﺎﻟﺘﺎﻟﻲ‬
‫ﻳﺠﺐ ﺗﻮﻓﻴﺮ ﺍﻻﺗﺼﺎﻝ ﺑﻨﻈﺎﻡ ﺗﻮﺯﻳﻊ ﺍﻟﻜﺒﻞ ﻋﺒﺮ ﺟﻬﺎﺯ ﻳﻘﻮﻡ ﺑﺘﻮﻓﻴﺮ ﻋﺰﻝ ﻛﻬﺮﺑﺎﺋﻲ ﻣﺎ ﺩﻭﻥ ﻧﻄﺎﻕ ﺗﺮﺩﺩ ﻣﻌ ﻴ ّﻦ )ﻋﺎﺯﻝ ﺟﻠﻔﺎﻧﻲ، ﻳﺮﺟﻰ ﻣﺮﺍﺟﻌﺔ‬
.‫ﻛﺎﻥ ﻻ ﻳﻤﻜﻦ ﺗﺜﺒﻴﺘﻪ ﻋﻠﻰ ﺍﻟﺤﺎﺋﻂ, ﻗﻢ ﺑﺘﻌﻠﻴﻘﻪ ﻋﻠﻰ ﺍﻟﺘﻠﻔﺎﺯ. ﺗﺠ ﻨ ّ ﺐ ﻓﺼﻞ ﻋﺎﺯﻝ ﺍﻟﻬﻮﺍﺋﻲ ﺑﻌﺪ ﺍﻟﺘﺜﺒﻴﺖ‬
‫ﺃﻭ‬
‫ﺍﻟﻌﺎﺯﻝ‬
.‫ﻋﻨﺪ ﺗﺜﺒﻴﺖ ﻋﺎﺯﻝ ﺍﻟﺘﺮﺩﺩ ﺍﻟﺮﺍﺩﻳﻮﻱ، ﻗﺪ ﻳﻨﺨﻔﺾ ﻣﺴﺘﻮﻯ ﺣﺴﺎﺳﻴﺔ ﺍﻹﺷﺎﺭﺓ ﻋﻠﻰ ﻧﺤﻮ ﺧﻔﻴﻒ‬
‫ﺩﻟﻴﻞ ﺗﺜﺒﻴﺖ ﻋﺎﺯﻝ ﺍﻟﻬﻮﺍﺋﻲ‬
.‫ﺍﻟﺤﺮﺍﺭﺓ ﺍﻟﻤﻔﺮﻃﺔ ﺇﻟﻰ ﻭﻗﻮﻉ ﺣﺎﺩﺙ‬
.‫ﺗﺄﻛﺪ ﻣﻦ ﺗﻮﺻﻴﻞ ﻫﻮﺍﺋﻲ ﺍﻟﺘﻠﻔﺎﺯ ﻗﺒﻞ ﺍﻟﺒﺪء‬
.‫1.ﺍﻻﺗﺼﺎﻝ ﺑﺎﻟﺘﻠﻔﺎﺯ‬
.Set-Top box ‫2. ﺍﻻﺗﺼﺎﻝ ﺑﺠﻬﺎﺯ‬
"(EN 60728-11
‫ﻣﻼﺣﻈﺔ‬
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