{"id":190,"date":"2019-11-13T17:20:03","date_gmt":"2019-11-13T16:20:03","guid":{"rendered":"http:\/\/web-electronlibre.fr\/?page_id=190"},"modified":"2021-05-04T13:36:58","modified_gmt":"2021-05-04T11:36:58","slug":"reparation-ampli","status":"publish","type":"page","link":"http:\/\/web-electronlibre.fr\/?page_id=190","title":{"rendered":"R\u00e9parations"},"content":{"rendered":"\n<h3>Atelier<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"768\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/12\/photo-1024x768.jpg\" alt=\"\" class=\"wp-image-277\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/12\/photo-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/12\/photo-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/12\/photo-768x576.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3>Exemple de r\u00e9parations<\/h3>\n\n\n\n<h4>Amplis<\/h4>\n\n\n\n<p>Dans cet ampli, le circuit de protection des enceintes \u00e9tait HS. Sch\u00e9ma \u00e9lectronique \u00e0 refaire pour la r\u00e9paration.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040514-1-1024x768.jpg\" alt=\"\" class=\"wp-image-213\" width=\"255\" height=\"192\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040514-1-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040514-1-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040514-1-768x576.jpg 768w\" sizes=\"(max-width: 255px) 100vw, 255px\" \/><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040520-2-1024x768.jpg\" alt=\"\" class=\"wp-image-214\" width=\"257\" height=\"193\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040520-2-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040520-2-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040520-2-768x576.jpg 768w\" sizes=\"(max-width: 257px) 100vw, 257px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Dans celui-ci, une des deux voies \u00e9tait HS, le transistor de puissance ainsi que sa paire ont d\u00fb \u00eatre chang\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040597-1024x768.jpg\" alt=\"\" class=\"wp-image-202\" width=\"283\" height=\"213\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040597-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040597-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040597-768x576.jpg 768w\" sizes=\"(max-width: 283px) 100vw, 283px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Pour cet ampli Beomaster 3000. Les transistors driver des transistors de puissance ont \u00e9t\u00e9 remplac\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"334\" height=\"151\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/09\/beomaster3000-2.jpg\" alt=\"\" class=\"wp-image-139\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Cet ampli ne d\u00e9marrait plus du tout. Le circuit d&#8217;alimentation du relais d&#8217;entr\u00e9e devait \u00eatre r\u00e9par\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040943-1024x768.jpg\" alt=\"\" class=\"wp-image-203\" width=\"197\" height=\"148\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040943-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040943-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040943-768x576.jpg 768w\" sizes=\"(max-width: 197px) 100vw, 197px\" \/><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040948-1024x768.jpg\" alt=\"\" class=\"wp-image-204\" width=\"200\" height=\"150\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040948-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040948-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040948-768x576.jpg 768w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-left\">La courroie de ce tuner Pioneer-sx-434 \u00e9tait cass\u00e9e ainsi que la lampe de r\u00e9tro \u00e9clairage de la face avant. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040963-1024x768.jpg\" alt=\"\" class=\"wp-image-205\" width=\"202\" height=\"151\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040963-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040963-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040963-768x576.jpg 768w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/Pioneer-sx-434-FAV-2-1.jpg\" alt=\"\" class=\"wp-image-206\" width=\"334\" height=\"172\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/Pioneer-sx-434-FAV-2-1.jpg 550w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/Pioneer-sx-434-FAV-2-1-300x154.jpg 300w\" sizes=\"(max-width: 334px) 100vw, 334px\" \/><\/figure>\n\n\n\n<p>Les transistors de puissance de cet ampli Pionner de voiture ont d\u00fb \u00eatre chang\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040727-1024x768.jpg\" alt=\"\" class=\"wp-image-207\" width=\"288\" height=\"216\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040727-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040727-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040727-768x576.jpg 768w\" sizes=\"(max-width: 288px) 100vw, 288px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Bose 614810<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"264\" height=\"191\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/index.jpg\" alt=\"\" class=\"wp-image-943\"\/><\/figure>\n\n\n\n<p>La partie alimentation avait br\u00fbl\u00e9, changement des transistors, r\u00e9fection des pistes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"480\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070123.jpg\" alt=\"\" class=\"wp-image-944\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070123.jpg 640w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070123-300x225.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Mimestism 17.2 <\/p>\n\n\n\n<p>Une des voies ne fonctionnait plus. Les transistors de puissance ont \u00e9t\u00e9 chang\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"480\" height=\"352\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/thumbnail-480-360-1-jpeg-275.jpeg\" alt=\"\" class=\"wp-image-948\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/thumbnail-480-360-1-jpeg-275.jpeg 480w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/thumbnail-480-360-1-jpeg-275-300x220.jpeg 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-1024x768.jpg\" alt=\"\" class=\"wp-image-949\" width=\"470\" height=\"352\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-768x576.jpg 768w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-1536x1152.jpg 1536w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2021\/05\/P1070034-2048x1536.jpg 2048w\" sizes=\"(max-width: 470px) 100vw, 470px\" \/><\/figure>\n\n\n\n<h4>Aspirateur<\/h4>\n\n\n\n<p>Les batteries lithium-ion ont du toutes \u00eatre remplac\u00e9es.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040733-1024x768.jpg\" alt=\"\" class=\"wp-image-208\" width=\"294\" height=\"221\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040733-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040733-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040733-768x576.jpg 768w\" sizes=\"(max-width: 294px) 100vw, 294px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4>Carte Alimentation TV<\/h4>\n\n\n\n<p>En ce qui concerne les cartes d\u2019alimentation des t\u00e9l\u00e9visions,  les pannes&nbsp;concernent&nbsp;g\u00e9n\u00e9ralement&nbsp;les MOSFET de puissance,&nbsp;ou le circuit d\u00e9di\u00e9 \u00e0 la commutation des transistors,&nbsp;parfois  il s&#8217;agit&nbsp;de&nbsp;diodes ou&nbsp;de&nbsp;condensateurs un peu fatigu\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040541-1024x768.jpg\" alt=\"\" class=\"wp-image-209\" width=\"302\" height=\"227\" srcset=\"http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040541-1024x768.jpg 1024w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040541-300x225.jpg 300w, http:\/\/web-electronlibre.fr\/wp-content\/uploads\/2019\/11\/P1040541-768x576.jpg 768w\" sizes=\"(max-width: 302px) 100vw, 302px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h4>R\u00e9tro \u00e9clairage des TVs<\/h4>\n\n\n\n<p>Une LED d\u00e9fectueuse dans le bandeau de led servant au r\u00e9tro-\u00e9clairage ne permet pas d&#8217;afficher d&#8217;images. Il faut alors la remplacer.  <\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Atelier Exemple de r\u00e9parations Amplis Dans cet ampli, le circuit de protection des enceintes \u00e9tait HS. Sch\u00e9ma \u00e9lectronique \u00e0 refaire pour la r\u00e9paration. Dans celui-ci, une des deux voies \u00e9tait HS, le transistor de puissance ainsi que sa paire ont&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/pages\/190"}],"collection":[{"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=190"}],"version-history":[{"count":27,"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/pages\/190\/revisions"}],"predecessor-version":[{"id":952,"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=\/wp\/v2\/pages\/190\/revisions\/952"}],"wp:attachment":[{"href":"http:\/\/web-electronlibre.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}