{"id":16360,"date":"2020-07-27T08:30:30","date_gmt":"2020-07-27T08:30:30","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=16360"},"modified":"2024-07-03T13:29:21","modified_gmt":"2024-07-03T06:29:21","slug":"pan-khong-mo-nguon-vao-cua-may-dell-3559-14236-1-dung-ic-sac-bq24770","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=16360","title":{"rendered":"CHIA S\u1eba PAN KH\u00d4NG M\u1ede NGU\u1ed2N V\u00c0O C\u1ee6A M\u00c1Y DELL 3559 (14236-1) D\u00d9NG IC S\u1ea0C BQ24770"},"content":{"rendered":"

H\u00f4m nay, HOCVIENiT.vn s\u1ebd h\u01b0\u1edbng d\u1eabn c\u00e1c b\u1ea1n c\u00e1ch s\u1eeda pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770<\/strong>.<\/span><\/p>\n

\"Chia
Chia s\u1ebb pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770<\/span><\/figcaption><\/figure>\n

C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n<\/strong><\/span><\/h2>\n

Ki\u1ec3m tra main \u0111\u00e3 qua s\u1eeda ch\u1eefa thay ic s\u1ea1c, fet \u0111\u1ea7u v\u00e0o, fet ngu\u1ed3n pin v\u00e0 c\u00e1c linh ki\u1ec7n xung quanh.<\/span><\/p>\n

Ti\u1ebfn h\u00e0nh c\u1ea5p ngu\u1ed3n cho main, \u0111o c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee7a ic s\u1ea1c:<\/span><\/p>\n

– Ngu\u1ed3n nu\u00f4i VCC (pin28): 19V ok.<\/span><\/p>\n

– Acdet (pin6): 2.6V ok.<\/span><\/p>\n

– Acok (PWR_CHG_ACOK): 0V.<\/span><\/p>\n

\u00c1p \u0111\u01b0\u1eddng acok 0V n\u00ean ic ch\u01b0a nh\u1eadn d\u1ea1ng \u0111\u01b0\u1ee3c s\u1ea1c v\u00e0 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, ti\u1ebfn h\u00e0nh do ng\u01b0\u1ee3c \u0111\u01b0\u1eddng PWR_CHG_ACOK th\u00ec th\u1ea5y \u0111i \u0111\u1ebfn m\u1ed9t m\u1ea1ch c\u1ea7u tr\u1edf ph\u00e2n \u00e1p <PR4410 v\u00e0 PR4404>, ki\u1ec3m tra m\u1ea1ch c\u1ea7u tr\u1edf ph\u00e2n \u00e1p th\u00ec th\u1ea5y kh\u00f4ng c\u00f3 ngu\u1ed3n PWR_CHG_REGN. D\u00f2 ng\u01b0\u1ee3c l\u1ea1i th\u00ec th\u1ea5y \u0111i t\u1eeb ic s\u1ea1c Bq24770 \u0111i ra. Ki\u1ec3m tra tr\u1edf kh\u00e1ng \u0111\u01b0\u1eddng PWR_CHG_REGN th\u00ec th\u1ea5y r\u1ea5t th\u1ea5p n\u00ean suy ra \u0111\u01b0\u1eddng PWR_CHG_REGN \u0111ang b\u1ecb ch\u1eadp c\u00f3 nguy\u00ean nh\u00e2n l\u00e0 do ch\u1eadp t\u1ee5 PC4422 l\u00e0m m\u1ea5t \u00e1p 5.4V \u0111\u01b0\u1eddng PWR_CHG_REGN.\u00a0<\/span><\/p>\n

\"Pan
Pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770<\/span><\/figcaption><\/figure>\n
\"Pan
Pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770<\/span><\/figcaption><\/figure>\n

Gi\u1ea3i ph\u00e1p trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 ti\u1ebfn h\u00e0nh thay th\u1ebf t\u1ee5 PC4422. K\u1ebft qu\u1ea3 l\u00e0 main \u0111\u00e3 m\u1edf ngu\u1ed3n OK.<\/span><\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a HOCVIENiT.vn<\/a> <\/strong>v\u1ec1 c\u00e1ch s\u1eeda pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770. Ch\u00fac b\u1ea1n th\u00e0nh c\u00f4ng!<\/span><\/p>\n

N\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 th\u1eafc m\u1eafc n\u00e0o v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn m\u00e1y t\u00ednh th\u00ec b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn b\u00ean d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y. V\u00e0 \u0111\u1eebng qu\u00ean \u0111\u00f3n \u0111\u1ecdc c\u00e1c b\u00e0i vi\u1ebft m\u1edbi nh\u1ea5t c\u1ee7a HOCVIENiT.vn nh\u00e9.<\/span><\/p>\n

C\u00e1c b\u00e0i vi\u1ebft li\u00ean quan:<\/span><\/p>\n

H\u01b0\u1edbng d\u1eabn thay m\u00e0n Dell 3558, Dell XPS L502<\/a><\/span><\/p>\n

H\u01b0\u1edbng d\u1eabn s\u1eeda l\u1ed7i Dell Inspiron 3451 kh\u00f4ng k\u00edch \u0111\u01b0\u1ee3c ngu\u1ed3n<\/a><\/span><\/p>\n

Quy tr\u00ecnh b\u1ea3o d\u01b0\u1ee1ng laptop DELL LATITUDE 6520 t\u1ea1i nh\u00e0<\/a><\/span><\/p><\/blockquote>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:
\n<\/i>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT
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\nH\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b>https:\/\/hocvienit.vn\/lien-he\/<\/a>
\nH\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

H\u00f4m nay, HOCVIENiT.vn s\u1ebd h\u01b0\u1edbng d\u1eabn c\u00e1c b\u1ea1n c\u00e1ch s\u1eeda pan kh\u00f4ng m\u1edf ngu\u1ed3n v\u00e0o c\u1ee7a m\u00e1y Dell 3559 (14236-1) d\u00f9ng IC s\u1ea1c BQ24770.<\/p>\n","protected":false},"author":95,"featured_media":16361,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185,94,192],"tags":[614,677],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/16360"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16360"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/16360\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/16361"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}