{"id":914,"date":"2025-10-25T13:46:10","date_gmt":"2025-10-25T06:46:10","guid":{"rendered":"http:\/\/trungpro.com.vn\/wordpress\/?p=914"},"modified":"2025-10-25T13:49:17","modified_gmt":"2025-10-25T06:49:17","slug":"914","status":"publish","type":"post","link":"https:\/\/trungpro.com.vn\/wordpress\/914\/","title":{"rendered":"\u26a1 Amply, C\u1ee5c \u0110\u1ea9y Ch\u1ebft Ngu\u1ed3n \u2013 Nguy\u00ean Nh\u00e2n v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa Hi\u1ec7u Qu\u1ea3"},"content":{"rendered":"\n<p><strong>\ud83d\udd0d Gi\u1edbi thi\u1ec7u chung<\/strong><\/p>\n\n\n\n<p>Trong h\u1ec7 th\u1ed1ng \u00e2m thanh chuy\u00ean nghi\u1ec7p, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u \u00e2m thanh ra loa. Tuy nhi\u00ean, m\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng g\u1eb7p l\u00e0 amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y b\u1ecb ch\u1ebft ngu\u1ed3n \u2013 t\u1ee9c l\u00e0 kh\u00f4ng l\u00ean \u0111i\u1ec7n, kh\u00f4ng s\u00e1ng \u0111\u00e8n, kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p>V\u1eady nguy\u00ean nh\u00e2n n\u00e0o d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng n\u00e0y v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ra sao? H\u00e3y c\u00f9ng trungvu.net t\u00ecm hi\u1ec3u chi ti\u1ebft.<\/p>\n\n\n\n<p><strong>\u26a0\ufe0f D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft Amply ho\u1eb7c C\u1ee5c \u0110\u1ea9y b\u1ecb ch\u1ebft ngu\u1ed3n<\/strong><\/p>\n\n\n\n<p>Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh s\u1eeda ch\u1eefa, b\u1ea1n c\u1ea7n x\u00e1c \u0111\u1ecbnh \u0111\u00fang t\u00ecnh tr\u1ea1ng h\u01b0 h\u1ecfng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1eadt c\u00f4ng t\u1eafc kh\u00f4ng th\u1ea5y \u0111\u00e8n b\u00e1o ngu\u1ed3n s\u00e1ng.<\/li>\n\n\n\n<li>Qu\u1ea1t t\u1ea3n nhi\u1ec7t kh\u00f4ng quay, kh\u00f4ng c\u00f3 ti\u1ebfng \u201ct\u00e1ch\u201d c\u1ee7a r\u01a1-le ngu\u1ed3n.<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 \u0111i\u1ec7n \u00e1p ra loa, kh\u00f4ng ph\u00e1t \u00e2m thanh.<\/li>\n\n\n\n<li>M\u1ed9t s\u1ed1 m\u00e1y c\u00f3 m\u00f9i kh\u00e9t nh\u1eb9 ho\u1eb7c ng\u1eaft c\u1ea7u ch\u00ec ngay khi c\u1eafm \u0111i\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu g\u1eb7p nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng tr\u00ean, r\u1ea5t c\u00f3 th\u1ec3 bo ngu\u1ed3n c\u1ee7a amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y \u0111\u00e3 g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"1024\" src=\"https:\/\/trungpro.com.vn\/wordpress\/wp-content\/uploads\/2025\/10\/Amply-cuc-day-chet-nguon-va-cach-sua-683x1024.webp\" alt=\"\u26a1 Amply, C\u1ee5c \u0110\u1ea9y Ch\u1ebft Ngu\u1ed3n \u2013 Nguy\u00ean Nh\u00e2n v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa Hi\u1ec7u Qu\u1ea3\" class=\"wp-image-916\" srcset=\"https:\/\/trungpro.com.vn\/wordpress\/wp-content\/uploads\/2025\/10\/Amply-cuc-day-chet-nguon-va-cach-sua-683x1024.webp 683w, https:\/\/trungpro.com.vn\/wordpress\/wp-content\/uploads\/2025\/10\/Amply-cuc-day-chet-nguon-va-cach-sua-200x300.webp 200w, https:\/\/trungpro.com.vn\/wordpress\/wp-content\/uploads\/2025\/10\/Amply-cuc-day-chet-nguon-va-cach-sua-768x1152.webp 768w, https:\/\/trungpro.com.vn\/wordpress\/wp-content\/uploads\/2025\/10\/Amply-cuc-day-chet-nguon-va-cach-sua.webp 1024w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><figcaption class=\"wp-element-caption\"><em>\u26a1 Amply, C\u1ee5c \u0110\u1ea9y Ch\u1ebft Ngu\u1ed3n \u2013 Nguy\u00ean Nh\u00e2n v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa Hi\u1ec7u Qu\u1ea3<\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>\ud83e\udde9 Nguy\u00ean nh\u00e2n khi\u1ebfn Amply, C\u1ee5c \u0110\u1ea9y ch\u1ebft ngu\u1ed3n<\/strong><\/p>\n\n\n\n<p>C\u00f3 nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau, nh\u01b0ng th\u01b0\u1eddng r\u01a1i v\u00e0o 5 nh\u00f3m ch\u00ednh:<\/p>\n\n\n\n<p><strong>1. H\u1ecfng c\u1ea7u ch\u00ec b\u1ea3o v\u1ec7<\/strong><\/p>\n\n\n\n<p>C\u1ea7u ch\u00ec l\u00e0 linh ki\u1ec7n b\u1ea3o v\u1ec7 khi d\u00f2ng \u0111i\u1ec7n v\u01b0\u1ee3t m\u1ee9c. N\u1ebfu c\u1eafm nh\u1ea7m ngu\u1ed3n ho\u1eb7c b\u1ecb ch\u1eadp t\u1ea3i, c\u1ea7u ch\u00ec s\u1ebd \u0111\u1ee9t.<\/p>\n\n\n\n<p>\ud83d\udc49 C\u00e1ch ki\u1ec3m tra: D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n tr\u1edf \u0111\u1ec3 ki\u1ec3m tra li\u00ean t\u1ee5c gi\u1eefa 2 \u0111\u1ea7u c\u1ea7u ch\u00ec. N\u1ebfu \u0111\u1ee9t, c\u1ea7n thay \u0111\u00fang tr\u1ecb s\u1ed1 v\u00e0 lo\u1ea1i c\u1ea7u ch\u00ec chu\u1ea9n.<\/p>\n\n\n\n<p><strong>2. L\u1ed7i ngu\u1ed3n xung ho\u1eb7c m\u1ea1ch bi\u1ebfn \u00e1p<\/strong><\/p>\n\n\n\n<p>C\u1ee5c \u0111\u1ea9y hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng s\u1eed d\u1ee5ng ngu\u1ed3n xung (SMPS), trong khi amply truy\u1ec1n th\u1ed1ng d\u00f9ng bi\u1ebfn \u00e1p xuy\u1ebfn.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u1ebfu IC ngu\u1ed3n xung ch\u1ebft \u2192 m\u00e1y kh\u00f4ng kh\u1edfi \u0111\u1ed9ng.<\/li>\n\n\n\n<li>N\u1ebfu t\u1ee5 l\u1ecdc ngu\u1ed3n b\u1ecb ph\u00f9 ho\u1eb7c n\u1ed5, \u0111i\u1ec7n \u00e1p DC s\u1ebd m\u1ea5t c\u00e2n b\u1eb1ng.<br>\ud83d\udc49 Gi\u1ea3i ph\u00e1p: Thay IC \u0111i\u1ec1u khi\u1ec3n (th\u01b0\u1eddng l\u00e0 TL494, UC3842, ho\u1eb7c KA7500), ki\u1ec3m tra diode n\u1eafn, t\u1ee5 l\u1ecdc ngu\u1ed3n, \u0111i\u1ec7n tr\u1edf m\u1ed3i.<\/li>\n<\/ul>\n\n\n\n<p><strong>3. H\u1ecfng m\u1ea1ch b\u1ea3o v\u1ec7<\/strong><\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 c\u1ee5c \u0111\u1ea9y c\u00f3 m\u1ea1ch b\u1ea3o v\u1ec7 loa \u2013 khi ph\u00e1t hi\u1ec7n l\u1ed7i, h\u1ec7 th\u1ed1ng s\u1ebd t\u1ef1 ng\u1eaft ngu\u1ed3n.<\/p>\n\n\n\n<p>\ud83d\udc49 Ki\u1ec3m tra m\u1ea1ch relay, transistor \u0111i\u1ec1u khi\u1ec3n relay, IC b\u1ea3o v\u1ec7 (th\u01b0\u1eddng d\u00f9ng AN5265, UPC1237, v.v.).<\/p>\n\n\n\n<p><strong>4. Ch\u1ebft s\u00f2 c\u00f4ng su\u1ea5t ho\u1eb7c transistor<\/strong><\/p>\n\n\n\n<p>N\u1ebfu s\u00f2 c\u00f4ng su\u1ea5t b\u1ecb ch\u1eadp (th\u01b0\u1eddng l\u00e0 2SC5200, 2SA1943, Toshiba, Sanken\u2026), ngu\u1ed3n s\u1ebd b\u1ecb ng\u1eaft ngay khi kh\u1edfi \u0111\u1ed9ng.<\/p>\n\n\n\n<p>\ud83d\udc49 C\u00e1ch s\u1eeda: D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o ki\u1ec3m tra ch\u1eadp gi\u1eefa c\u1ef1c C-E ho\u1eb7c B-C. N\u1ebfu ch\u1eadp \u2192 thay th\u1ebf b\u1eb1ng linh ki\u1ec7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/p>\n\n\n\n<p><strong>5. M\u1ea5t ngu\u1ed3n \u0111i\u1ec1u khi\u1ec3n (\u00b115V ho\u1eb7c 5V)<\/strong><\/p>\n\n\n\n<p>Bo m\u1ea1ch pre-amp v\u00e0 bo x\u1eed l\u00fd t\u00edn hi\u1ec7u c\u1ea7n ngu\u1ed3n \u00b115V (cho op-amp) ho\u1eb7c 5V (cho vi \u0111i\u1ec1u khi\u1ec3n).<\/p>\n\n\n\n<p>\ud83d\udc49 N\u1ebfu m\u1ea5t ngu\u1ed3n n\u00e0y, amply s\u1ebd kh\u00f4ng kh\u1edfi \u0111\u1ed9ng \u0111\u01b0\u1ee3c, d\u00f9 ngu\u1ed3n ch\u00ednh v\u1eabn c\u00f2n.<\/p>\n\n\n\n<p>C\u1ea7n ki\u1ec3m tra IC \u1ed5n \u00e1p 7815, 7915, 7805, t\u1ee5 l\u1ecdc v\u00e0 \u0111i\u1ec7n tr\u1edf c\u1ea5p ngu\u1ed3n.<\/p>\n\n\n\n<p><strong>\ud83d\udd27 Quy tr\u00ecnh s\u1eeda ch\u1eefa Amply \u2013 C\u1ee5c \u0110\u1ea9y ch\u1ebft ngu\u1ed3n<\/strong><\/p>\n\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 quy tr\u00ecnh c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean chuy\u00ean nghi\u1ec7p th\u1ef1c hi\u1ec7n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ki\u1ec3m tra c\u1ea7u ch\u00ec v\u00e0 ngu\u1ed3n AC \u0111\u1ea7u v\u00e0o.<\/li>\n\n\n\n<li>\u0110o \u0111i\u1ec7n \u00e1p ra c\u1ee7a bi\u1ebfn \u00e1p ho\u1eb7c ngu\u1ed3n xung.<\/li>\n\n\n\n<li>Ki\u1ec3m tra c\u00e1c t\u1ee5 l\u1ecdc, diode, IC ngu\u1ed3n.<\/li>\n\n\n\n<li>Th\u1eed t\u00e1ch t\u1ea3i c\u00f4ng su\u1ea5t ra \u0111\u1ec3 ki\u1ec3m tra ri\u00eang bo ngu\u1ed3n.<\/li>\n\n\n\n<li>Thay th\u1ebf linh ki\u1ec7n h\u1ecfng (s\u00f2, IC, \u0111i\u1ec7n tr\u1edf, t\u1ee5, diode\u2026).<\/li>\n\n\n\n<li>Ki\u1ec3m tra m\u1ea1ch b\u1ea3o v\u1ec7 loa v\u00e0 relay.<\/li>\n\n\n\n<li>L\u1eafp l\u1ea1i, test ho\u1ea1t \u0111\u1ed9ng, nghe th\u1eed \u00e2m thanh \u0111\u1ea7u ra.<\/li>\n<\/ol>\n\n\n\n<p>\u2699\ufe0f L\u01b0u \u00fd: N\u1ebfu b\u1ea1n kh\u00f4ng c\u00f3 kinh nghi\u1ec7m v\u1ec1 \u0111i\u1ec7n t\u1eed, kh\u00f4ng n\u00ean t\u1ef1 s\u1eeda t\u1ea1i nh\u00e0 v\u00ec c\u00f3 th\u1ec3 g\u00e2y ch\u1eadp m\u1ea1ch, h\u1ecfng n\u1eb7ng h\u01a1n, ho\u1eb7c nguy hi\u1ec3m \u0111i\u1ec7n gi\u1eadt.<\/p>\n\n\n\n<p><strong>\ud83d\udca1 M\u1eb9o ph\u00f2ng tr\u00e1nh Amply, C\u1ee5c \u0110\u1ea9y b\u1ecb ch\u1ebft ngu\u1ed3n<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kh\u00f4ng b\u1eadt\/t\u1eaft li\u00ean t\u1ee5c trong th\u1eddi gian ng\u1eafn.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng \u1ed5n \u00e1p ho\u1eb7c b\u1ed9 ch\u1ed1ng s\u00e9t lan truy\u1ec1n khi d\u00f9ng trong khu v\u1ef1c \u0111i\u1ec7n \u00e1p kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/li>\n\n\n\n<li>V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh b\u1ee5i b\u1ea9n, \u1ea9m m\u1ed1c g\u00e2y ch\u1eadp m\u1ea1ch.<\/li>\n\n\n\n<li>Kh\u00f4ng \u0111\u1ec3 qu\u00e1 t\u1ea3i loa, ch\u1ecdn tr\u1edf kh\u00e1ng ph\u00f9 h\u1ee3p v\u1edbi c\u00f4ng su\u1ea5t c\u1ee5c \u0111\u1ea9y.<\/li>\n\n\n\n<li>T\u1eaft ngu\u1ed3n \u0111\u00fang tr\u00ecnh t\u1ef1: T\u1eaft amply\/c\u1ee5c \u0111\u1ea9y tr\u01b0\u1edbc, sau \u0111\u00f3 m\u1edbi t\u1eaft mixer.<\/li>\n<\/ul>\n\n\n\n<p><strong>\ud83e\udde0 K\u1ebft lu\u1eadn<\/strong><\/p>\n\n\n\n<p>Vi\u1ec7c amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y b\u1ecb ch\u1ebft ngu\u1ed3n l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u01b0ng ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c n\u1ebfu x\u00e1c \u0111\u1ecbnh \u0111\u00fang nguy\u00ean nh\u00e2n. V\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 ki\u1ebfn th\u1ee9c \u0111i\u1ec7n t\u1eed c\u01a1 b\u1ea3n, vi\u1ec7c ki\u1ec3m tra c\u1ea7u ch\u00ec, ngu\u1ed3n xung, s\u00f2 c\u00f4ng su\u1ea5t l\u00e0 nh\u1eefng b\u01b0\u1edbc \u0111\u1ea7u quan tr\u1ecdng.<\/p>\n\n\n\n<p>C\u00f2n n\u1ebfu b\u1ea1n kh\u00f4ng r\u00e0nh k\u1ef9 thu\u1eadt, h\u00e3y mang \u0111\u1ebfn trung t\u00e2m s\u1eeda ch\u1eefa uy t\u00edn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c x\u1eed l\u00fd an to\u00e0n v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i.<\/p>\n\n\n\n<p><strong>\u2753 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/p>\n\n\n\n<p>1. Amply b\u1eadt kh\u00f4ng s\u00e1ng \u0111\u00e8n c\u00f3 ph\u1ea3i ch\u1ebft ngu\u1ed3n kh\u00f4ng?<\/p>\n\n\n\n<p>\u27a1\ufe0f C\u00f3 th\u1ec3, nh\u01b0ng c\u0169ng c\u00f3 th\u1ec3 do \u0111\u1ee9t d\u00e2y ngu\u1ed3n, l\u1ecfng c\u00f4ng t\u1eafc ho\u1eb7c h\u1ecfng \u0111\u00e8n b\u00e1o. C\u1ea7n ki\u1ec3m tra th\u00eam.<\/p>\n\n\n\n<p>2. C\u1ee5c \u0111\u1ea9y b\u1ecb ng\u1eaft c\u1ea7u ch\u00ec li\u00ean t\u1ee5c l\u00e0 l\u1ed7i g\u00ec?<\/p>\n\n\n\n<p>\u27a1\ufe0f Th\u01b0\u1eddng do ch\u1eadp s\u00f2 c\u00f4ng su\u1ea5t ho\u1eb7c h\u1ecfng diode ch\u1ec9nh l\u01b0u.<\/p>\n\n\n\n<p>3. C\u00f3 th\u1ec3 thay s\u00f2 c\u00f4ng su\u1ea5t kh\u00e1c lo\u1ea1i \u0111\u01b0\u1ee3c kh\u00f4ng?<\/p>\n\n\n\n<p>\u27a1\ufe0f C\u00f3 th\u1ec3 thay t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, nh\u01b0ng c\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111\u00fang th\u00f4ng s\u1ed1 \u0111i\u1ec7n \u00e1p, d\u00f2ng v\u00e0 \u0111\u1ed9 khu\u1ebfch \u0111\u1ea1i (hFE).<\/p>\n\n\n\n<p>4. L\u00e0m sao \u0111\u1ec3 bi\u1ebft ngu\u1ed3n xung c\u00f2n ho\u1ea1t \u0111\u1ed9ng?<\/p>\n\n\n\n<p>\u27a1\ufe0f D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n DC \u1edf t\u1ee5 l\u1ecdc ngu\u1ed3n \u2013 n\u1ebfu kh\u00f4ng c\u00f3 \u0111i\u1ec7n \u00e1p \u2192 ngu\u1ed3n xung h\u1ecfng.<\/p>\n\n\n\n<p>5. N\u00ean s\u1eeda hay thay m\u1edbi khi c\u1ee5c \u0111\u1ea9y ch\u1ebft ngu\u1ed3n n\u1eb7ng?<\/p>\n\n\n\n<p>\u27a1\ufe0f N\u1ebfu m\u00e1y cao c\u1ea5p, c\u00f4ng su\u1ea5t l\u1edbn \u2192 n\u00ean s\u1eeda. N\u1ebfu h\u00e0ng ph\u1ed5 th\u00f4ng, chi ph\u00ed s\u1eeda cao \u2192 c\u00e2n nh\u1eafc thay m\u1edbi.<\/p>\n\n\n\n<p><strong>\ud83d\udd27 T\u1eeb kh\u00f3a SEO g\u1ee3i \u00fd:<\/strong><\/p>\n\n\n\n<p>amply ch\u1ebft ngu\u1ed3n, c\u1ee5c \u0111\u1ea9y kh\u00f4ng l\u00ean ngu\u1ed3n, s\u1eeda amply ch\u1ebft ngu\u1ed3n, s\u1eeda c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t, nguy\u00ean nh\u00e2n amply h\u01b0, amply kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong h\u1ec7 th\u1ed1ng \u00e2m thanh chuy\u00ean nghi\u1ec7p, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u \u00e2m thanh ra loa. Tuy nhi\u00ean, m\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t m\u00e0 ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng g\u1eb7p l\u00e0 amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y b\u1ecb ch\u1ebft ngu\u1ed3n \u2013 t\u1ee9c l\u00e0 kh\u00f4ng l\u00ean \u0111i\u1ec7n, kh\u00f4ng s\u00e1ng \u0111\u00e8n, kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n","protected":false},"author":1,"featured_media":916,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[428],"tags":[216,466,468,423,467,265,433],"class_list":["post-914","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sua-chua-thiet-bi-am-thanh","tag-amply","tag-amply-chet-nguon","tag-cach-sua-chua","tag-cuc-day","tag-cuc-day-chet-nguon","tag-hieu-qua","tag-nguyen-nhan"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u26a1 Amply, C\u1ee5c \u0110\u1ea9y Ch\u1ebft Ngu\u1ed3n \u2013 Nguy\u00ean Nh\u00e2n v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa Hi\u1ec7u Qu\u1ea3 - TrungPro.com.vn<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trungpro.com.vn\/wordpress\/914\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u26a1 Amply, C\u1ee5c \u0110\u1ea9y Ch\u1ebft Ngu\u1ed3n \u2013 Nguy\u00ean Nh\u00e2n v\u00e0 C\u00e1ch S\u1eeda Ch\u1eefa Hi\u1ec7u Qu\u1ea3 - TrungPro.com.vn\" \/>\n<meta property=\"og:description\" content=\"Trong h\u1ec7 th\u1ed1ng \u00e2m thanh chuy\u00ean nghi\u1ec7p, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u \u00e2m thanh ra loa. 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