{"id":28,"date":"2015-09-08T12:26:00","date_gmt":"2015-09-08T12:26:00","guid":{"rendered":"http:\/\/machineryequipmentonline.com\/video-equipment\/uncategorized\/the-digital-tv-receptionmemory-faults-and-their-symptoms\/"},"modified":"2015-09-08T12:26:00","modified_gmt":"2015-09-08T12:26:00","slug":"the-digital-tv-receptionmemory-faults-and-their-symptoms","status":"publish","type":"post","link":"http:\/\/machineryequipmentonline.com\/video-equipment\/the-digital-tv-receptionmemory-faults-and-their-symptoms\/","title":{"rendered":"The digital TV reception:Memory faults and their symptoms"},"content":{"rendered":"<div class=\"bdpif6a0dbe3bee963\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '61e5902552e2353963d8d2f1bd1f4a8f',\n\t\t'format' : 'iframe',\n\t\t'height' : 250,\n\t\t'width' : 300,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/61e5902552e2353963d8d2f1bd1f4a8f\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.bdpif6a0dbe3bee963 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.bdpif6a0dbe3bee963 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.bdpif6a0dbe3bee963 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.bdpif6a0dbe3bee963 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.bdpif6a0dbe3bee963 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<h3 align=\"justify\">Memory faults and their symptoms<\/h3>\n<p align=\"justify\">Memory chips perform a number of vital functions in a DTV decoder box including  <\/p>\n<blockquote>\n<p align=\"justify\">\u25cf Flash: start-up and processing routines for central microprocessing\/ microcontroller, transport processor and MPEG decoder.  <\/p>\n<p align=\"justify\">\u25cf DRAM\/SDARM\/DDRAM: micro memory  <\/p>\n<p align=\"justify\">\u25cf SDARM\/SRAM: transport packet storage at the demux stage  <\/p>\n<p align=\"justify\">\u25cf SDRAM: video I, P and B frames storage at the MPEG decoding stage  <\/p>\n<p align=\"justify\">\u25cf SDRAM: audio segment storage at the MPEG decoding stage  <\/p><div class=\"gjjtw6a0dbe3beebb5\" ><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0778475562755157\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- 300x600 television-and-video -->\n<ins class=\"adsbygoogle\"\n     style=\"display:inline-block;width:300px;height:600px\"\n     data-ad-client=\"ca-pub-0778475562755157\"\n     data-ad-slot=\"6549443290\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.gjjtw6a0dbe3beebb5 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.gjjtw6a0dbe3beebb5 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.gjjtw6a0dbe3beebb5 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.gjjtw6a0dbe3beebb5 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.gjjtw6a0dbe3beebb5 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<div class=\"ghtvy6a0dbe3beead1\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '0c1eb4c533eaedb7b996f49a5a4983a9',\n\t\t'format' : 'iframe',\n\t\t'height' : 300,\n\t\t'width' : 160,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/0c1eb4c533eaedb7b996f49a5a4983a9\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.ghtvy6a0dbe3beead1 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.ghtvy6a0dbe3beead1 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.ghtvy6a0dbe3beead1 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.ghtvy6a0dbe3beead1 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.ghtvy6a0dbe3beead1 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n\n<p align=\"justify\">\u25cf SDRAM\/DRAM: video buffering<\/p>\n<\/blockquote>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-bp0VijztL9k\/Ve7T1xa1lTI\/AAAAAAAB8Uc\/PkPNk5B7pLM\/s1600-h\/Television-and-Video-Technology-0099%25255B1%25255D.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-right-width: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"Television and Video Technology-0099\" border=\"0\" alt=\"Television and Video Technology-0099\" src=\"http:\/\/lh3.googleusercontent.com\/-wKZrK7eJUfE\/Ve7T42Tji-I\/AAAAAAAB8Uw\/j4HuOeyaaJM\/Television-and-Video-Technology-0099%25255B2%25255D.jpg?imgmax=800\" width=\"416\" height=\"343\" \/><\/a>  <\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-1AKf6SFTlZk\/Ve7T9WAx_5I\/AAAAAAAB8U4\/n0W5da79hWI\/s1600-h\/Television-and-Video-Technology-0100.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-right-width: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"Television and Video Technology-0100\" border=\"0\" alt=\"Television and Video Technology-0100\" src=\"http:\/\/lh3.googleusercontent.com\/-SBWWiHQkTj8\/Ve7UC8XS1GI\/AAAAAAAB8VQ\/NKIp-TUAtrE\/Television-and-Video-Technology-0100%25255B2%25255D.jpg?imgmax=800\" width=\"421\" height=\"323\" \/><\/a>  <\/p>\n<p align=\"justify\">Memory chips may fail either totally or partially. Partial failure may be caused by a corruption of one or more cells; an address or data bus line stuck at 1 or 0, or shorted pins. A fault, fatal or partial, in Flash or NVRAM would cause the DTV box to go into standby. A fatal fault in the transport processor or MPEG decoder memory chips would result in total picture and sound failure. However, a partial fault would display a constantly changing pattern of picture and sound break-up. The picture break-up is different from the pixelisation caused by a high BER count. In the latter case, all the picture parts are in the correct place, block by block, but some blocks are frozen or obliterated while in the former case, all the picture blocks are clearly present, but some blocks are in the wrong position (Figure 18.27) and\/or repeated as illustrated in Figure 18.28.  <\/p>\n<p align=\"justify\">\n","protected":false},"excerpt":{"rendered":"<p>Memory faults and their symptoms Memory chips perform a number of vital functions in a DTV decoder box including \u25cf Flash: start-up and processing routines for central microprocessing\/ microcontroller, transport processor and MPEG decoder. \u25cf DRAM\/SDARM\/DDRAM: micro memory \u25cf SDARM\/SRAM: transport packet storage at the demux stage \u25cf SDRAM: video I, P and B frames [&hellip;]<br \/><a href=\"http:\/\/machineryequipmentonline.com\/video-equipment\/the-digital-tv-receptionmemory-faults-and-their-symptoms\/\" class=\"more-link\" >Continue reading&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"aioseo_notices":[],"views":949,"_links":{"self":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts\/28"}],"collection":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/comments?post=28"}],"version-history":[{"count":0,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts\/28\/revisions"}],"wp:attachment":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/media?parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/categories?post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/tags?post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}