{"id":891,"date":"2025-10-23T21:27:32","date_gmt":"2025-10-23T14:27:32","guid":{"rendered":"http:\/\/trungpro.com.vn\/wordpress\/?p=891"},"modified":"2025-10-23T21:27:35","modified_gmt":"2025-10-23T14:27:35","slug":"%e2%9a%a1-amply-chet-cong-suat-va-cuc-day-chet-cong-suat-nguyen-nhan-va-cach-sua-chua-hieu-qua","status":"publish","type":"post","link":"https:\/\/trungpro.com.vn\/wordpress\/%e2%9a%a1-amply-chet-cong-suat-va-cuc-day-chet-cong-suat-nguyen-nhan-va-cach-sua-chua-hieu-qua\/","title":{"rendered":"\u26a1 Amply ch\u1ebft c\u00f4ng su\u1ea5t v\u00e0 c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t \u2013 Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch s\u1eeda ch\u1eefa hi\u1ec7u qu\u1ea3"},"content":{"rendered":"\n

\ud83d\udd0a Gi\u1edbi thi\u1ec7u<\/strong><\/p>\n\n\n\n

Trong h\u1ec7 th\u1ed1ng \u00e2m thanh, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t l\u00e0 hai thi\u1ebft b\u1ecb \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u, gi\u00fap loa ph\u00e1t ra \u00e2m thanh m\u1ea1nh m\u1ebd v\u00e0 trung th\u1ef1c. Tuy nhi\u00ean, sau th\u1eddi gian s\u1eed d\u1ee5ng, nhi\u1ec1u ng\u01b0\u1eddi g\u1eb7p t\u00ecnh tr\u1ea1ng amply ch\u1ebft c\u00f4ng su\u1ea5t ho\u1eb7c c\u1ee5c \u0111\u1ea9y b\u1ecb h\u01b0 c\u00f4ng su\u1ea5t, khi\u1ebfn thi\u1ebft b\u1ecb kh\u00f4ng c\u00f2n ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c ph\u00e1t ra \u00e2m thanh y\u1ebfu, m\u00e9o ti\u1ebfng.<\/p>\n\n\n\n

V\u1eady nguy\u00ean nh\u00e2n l\u00e0 g\u00ec, v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7u qu\u1ea3? H\u00e3y c\u00f9ng Trung Pro t\u00ecm hi\u1ec3u chi ti\u1ebft trong b\u00e0i vi\u1ebft n\u00e0y.<\/p>\n\n\n\n

\"\u26a1
\u26a1 Amply ch\u1ebft c\u00f4ng su\u1ea5t v\u00e0 c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t \u2013 Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch s\u1eeda ch\u1eefa hi\u1ec7u qu\u1ea3<\/em><\/figcaption><\/figure>\n\n\n\n

\ud83c\udf9b 1. D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t<\/strong><\/p>\n\n\n\n

Tr\u01b0\u1edbc khi s\u1eeda, c\u1ea7n nh\u1eadn bi\u1ebft \u0111\u00fang t\u00ecnh tr\u1ea1ng l\u1ed7i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c d\u1ea5u hi\u1ec7u th\u01b0\u1eddng g\u1eb7p:<\/p>\n\n\n\n

    \n
  • Kh\u00f4ng c\u00f3 ti\u1ebfng d\u00f9 ngu\u1ed3n v\u1eabn s\u00e1ng.<\/li>\n\n\n\n
  • \u00c2m thanh b\u1ecb m\u00e9o, nh\u1ecf ho\u1eb7c ch\u1ec9 ra m\u1ed9t b\u00ean k\u00eanh.<\/li>\n\n\n\n
  • Khi b\u1eadt ngu\u1ed3n c\u00f3 ti\u1ebfng b\u1ee5p l\u1edbn \u1edf loa.<\/li>\n\n\n\n
  • M\u00f9i kh\u00e9t nh\u1eb9 ph\u00e1t ra t\u1eeb m\u1ea1ch c\u00f4ng su\u1ea5t ho\u1eb7c s\u00f2\/IC.<\/li>\n\n\n\n
  • C\u1ea7u ch\u00ec b\u1ecb \u0111\u1ee9t li\u00ean t\u1ee5c d\u00f9 thay m\u1edbi.<\/li>\n\n\n\n
  • Nhi\u1ec7t \u0111\u1ed9 c\u00e1c transistor c\u00f4ng su\u1ea5t t\u0103ng b\u1ea5t th\u01b0\u1eddng.<\/li>\n<\/ul>\n\n\n\n

    Nh\u1eefng d\u1ea5u hi\u1ec7u tr\u00ean c\u1ea3nh b\u00e1o m\u1ea1ch c\u00f4ng su\u1ea5t \u0111\u00e3 g\u1eb7p s\u1ef1 c\u1ed1, c\u1ea7n ki\u1ec3m tra ngay tr\u00e1nh l\u00e0m ch\u00e1y n\u1eb7ng h\u01a1n.<\/p>\n\n\n\n

    \u26a0\ufe0f 2. Nguy\u00ean nh\u00e2n amply ho\u1eb7c c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t<\/strong><\/p>\n\n\n\n

    a. <\/strong><\/p>\n\n\n\n

    Qu\u00e1 t\u1ea3i ho\u1eb7c \u0111\u00e1nh qu\u00e1 c\u00f4ng su\u1ea5t<\/strong><\/p>\n\n\n\n

    Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng m\u1edf \u00e2m l\u01b0\u1ee3ng qu\u00e1 l\u1edbn trong th\u1eddi gian d\u00e0i khi\u1ebfn s\u00f2 c\u00f4ng su\u1ea5t (transistor\/IC) l\u00e0m vi\u1ec7c qu\u00e1 t\u1ea3i, sinh nhi\u1ec7t v\u00e0 ch\u00e1y.<\/p>\n\n\n\n

    b. <\/strong><\/p>\n\n\n\n

    S\u00f2 c\u00f4ng su\u1ea5t b\u1ecb ch\u1eadp ho\u1eb7c h\u1edf<\/strong><\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t. C\u00e1c transistor ho\u1eb7c IC c\u00f4ng su\u1ea5t nh\u01b0 A1943, C5200, TDA7294, STK\u2026 c\u00f3 th\u1ec3 b\u1ecb ch\u1eadp ch\u00e2n C\u2013E ho\u1eb7c h\u1edf m\u1ea1ch do qu\u00e1 nhi\u1ec7t.<\/p>\n\n\n\n

    c. <\/strong><\/p>\n\n\n\n

    Ngu\u1ed3n c\u1ea5p sai ho\u1eb7c m\u1ea5t c\u00e2n b\u1eb1ng \u00b1V<\/strong><\/p>\n\n\n\n

    Ngu\u1ed3n \u00b1V kh\u00f4ng \u1ed5n \u0111\u1ecbnh, m\u1ed9t b\u00ean cao h\u01a1n ho\u1eb7c th\u1ea5p h\u01a1n s\u1ebd khi\u1ebfn m\u1ea1ch c\u00f4ng su\u1ea5t ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u1ec1u \u2192 g\u00e2y ch\u00e1y m\u1ea1ch.<\/p>\n\n\n\n

    d. <\/strong><\/p>\n\n\n\n

    T\u1ee5 l\u1ecdc ngu\u1ed3n kh\u00f4 ho\u1eb7c n\u1ed5<\/strong><\/p>\n\n\n\n

    T\u1ee5 ngu\u1ed3n y\u1ebfu l\u00e0m \u0111i\u1ec7n \u00e1p dao \u0111\u1ed9ng m\u1ea1nh, t\u1ea1o xung nhi\u1ec5u l\u00e0m h\u1ecfng m\u1ea1ch c\u00f4ng su\u1ea5t.<\/p>\n\n\n\n

    e. <\/strong><\/p>\n\n\n\n

    L\u1ed7i t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o ho\u1eb7c m\u1ea1ch ti\u1ec1n khu\u1ebfch \u0111\u1ea1i<\/strong><\/p>\n\n\n\n

    N\u1ebfu m\u1ea1ch preamp b\u1ecb nhi\u1ec5u ho\u1eb7c sai \u0111i\u1ec7n \u00e1p, t\u00edn hi\u1ec7u kh\u00f4ng chu\u1ea9n c\u0169ng khi\u1ebfn t\u1ea7ng c\u00f4ng su\u1ea5t l\u00e0m vi\u1ec7c sai d\u1eabn \u0111\u1ebfn ch\u1ebft c\u00f4ng su\u1ea5t.<\/p>\n\n\n\n

    \ud83d\udee0 3. C\u00e1ch s\u1eeda amply ch\u1ebft c\u00f4ng su\u1ea5t v\u00e0 c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t<\/strong><\/p>\n\n\n\n

    B\u01b0\u1edbc 1: <\/strong><\/p>\n\n\n\n

    Ki\u1ec3m tra ngu\u1ed3n c\u1ea5p<\/strong><\/p>\n\n\n\n

      \n
    • \u0110o \u0111i\u1ec7n \u00e1p ra t\u1eeb bi\u1ebfn \u00e1p v\u00e0 m\u1ea1ch ch\u1ec9nh l\u01b0u.<\/li>\n\n\n\n
    • \u0110\u1ea3m b\u1ea3o c\u00f3 \u0111\u1ee7 \u00b1V (v\u00ed d\u1ee5: \u00b145V cho ampli c\u00f4ng su\u1ea5t trung b\u00ecnh).<\/li>\n\n\n\n
    • N\u1ebfu sai l\u1ec7ch ho\u1eb7c m\u1ea5t m\u1ed9t b\u00ean, ki\u1ec3m tra diode, c\u1ea7u ch\u1ec9nh l\u01b0u v\u00e0 t\u1ee5 l\u1ecdc ngu\u1ed3n.<\/li>\n<\/ul>\n\n\n\n

      B\u01b0\u1edbc 2: <\/strong><\/p>\n\n\n\n

      Ki\u1ec3m tra s\u00f2 c\u00f4ng su\u1ea5t<\/strong><\/p>\n\n\n\n

        \n
      • D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o ohm \u0111\u1ec3 \u0111o c\u00e1c ch\u00e2n C\u2013E, B\u2013C, B\u2013E.<\/li>\n\n\n\n
      • N\u1ebfu \u0111o th\u1ea5y ch\u1eadp ho\u1eb7c th\u00f4ng m\u1ea1ch b\u1ea5t th\u01b0\u1eddng \u2192 thay m\u1edbi.<\/li>\n\n\n\n
      • N\u00ean thay c\u1eb7p s\u00f2 \u0111\u1ed1i x\u1ee9ng c\u00f9ng lo\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e2n b\u1eb1ng hai k\u00eanh.<\/li>\n<\/ul>\n\n\n\n

        B\u01b0\u1edbc 3: <\/strong><\/p>\n\n\n\n

        Ki\u1ec3m tra \u0111i\u1ec7n tr\u1edf m\u1ed3i v\u00e0 \u0111i\u1ec7n tr\u1edf b\u1ea3o v\u1ec7<\/strong><\/p>\n\n\n\n

          \n
        • Nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec7n tr\u1edf m\u1ed3i (th\u01b0\u1eddng 0.22\u03a9 ho\u1eb7c 0.33\u03a9) b\u1ecb \u0111\u1ee9t.<\/li>\n\n\n\n
        • N\u1ebfu h\u01b0, c\u1ea7n thay \u0111\u00fang c\u00f4ng su\u1ea5t v\u00e0 tr\u1ecb s\u1ed1.<\/li>\n<\/ul>\n\n\n\n

          B\u01b0\u1edbc 4: <\/strong><\/p>\n\n\n\n

          Ki\u1ec3m tra m\u1ea1ch driver<\/strong><\/p>\n\n\n\n

            \n
          • C\u00e1c transistor nh\u1ecf \u0111i\u1ec1u khi\u1ec3n t\u1ea7ng c\u00f4ng su\u1ea5t c\u0169ng d\u1ec5 h\u1ecfng khi c\u00f4ng su\u1ea5t b\u1ecb ch\u1eadp.<\/li>\n\n\n\n
          • Thay th\u1ebf transistor driver t\u01b0\u01a1ng \u1ee9ng (th\u01b0\u1eddng l\u00e0 A1015, C1815, BD139, BD140\u2026).<\/li>\n<\/ul>\n\n\n\n

            B\u01b0\u1edbc 5: <\/strong><\/p>\n\n\n\n

            Ki\u1ec3m tra m\u1ea1ch b\u1ea3o v\u1ec7 loa (relay, IC b\u1ea3o v\u1ec7)<\/strong><\/p>\n\n\n\n

              \n
            • N\u1ebfu relay kh\u00f4ng \u0111\u00f3ng, d\u00f9 c\u00f4ng su\u1ea5t t\u1ed1t c\u0169ng kh\u00f4ng ra loa.<\/li>\n\n\n\n
            • Ki\u1ec3m tra \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n relay v\u00e0 m\u1ea1ch tr\u1ec5 b\u1ea3o v\u1ec7.<\/li>\n<\/ul>\n\n\n\n

              B\u01b0\u1edbc 6: <\/strong><\/p>\n\n\n\n

              L\u1eafp th\u1eed v\u00e0 test<\/strong><\/p>\n\n\n\n

                \n
              • Sau khi s\u1eeda, d\u00f9ng b\u00f3ng \u0111\u00e8n b\u1ea3o v\u1ec7 n\u1ed1i ti\u1ebfp ngu\u1ed3n AC \u0111\u1ec3 tr\u00e1nh ch\u1eadp ch\u00e1y.<\/li>\n\n\n\n
              • N\u1ebfu b\u00f3ng \u0111\u00e8n s\u00e1ng r\u1ed3i t\u1eaft \u2192 m\u1ea1ch \u1ed5n.<\/li>\n\n\n\n
              • D\u00f9ng t\u00edn hi\u1ec7u test nh\u1ecf \u0111\u1ec3 ki\u1ec3m tra c\u1ea3 hai k\u00eanh.<\/li>\n<\/ul>\n\n\n\n

                \ud83d\udca1 4. M\u1ed9t s\u1ed1 l\u01b0u \u00fd quan tr\u1ecdng khi s\u1eeda ch\u1eefa<\/strong><\/p>\n\n\n\n

                  \n
                • Lu\u00f4n d\u00f9ng t\u1ea3n nhi\u1ec7t t\u1ed1t v\u00e0 keo c\u00e1ch nhi\u1ec7t cho s\u00f2 c\u00f4ng su\u1ea5t.<\/li>\n\n\n\n
                • Kh\u00f4ng thay linh ki\u1ec7n kh\u00e1c lo\u1ea1i ho\u1eb7c kh\u00e1c th\u00f4ng s\u1ed1.<\/li>\n\n\n\n
                • Ki\u1ec3m tra to\u00e0n b\u1ed9 m\u1ea1ch tr\u01b0\u1edbc khi c\u1ea5p ngu\u1ed3n tr\u1ef1c ti\u1ebfp.<\/li>\n\n\n\n
                • N\u1ebfu kh\u00f4ng c\u00f3 kinh nghi\u1ec7m, n\u00ean mang \u0111\u1ebfn trung t\u00e2m s\u1eeda ch\u1eefa chuy\u00ean nghi\u1ec7p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n\n\n\n

                  \ud83c\udfaf 5. C\u00e1ch ph\u00f2ng tr\u00e1nh ch\u1ebft c\u00f4ng su\u1ea5t trong t\u01b0\u01a1ng lai<\/strong><\/p>\n\n\n\n

                    \n
                  • Kh\u00f4ng m\u1edf \u00e2m l\u01b0\u1ee3ng max li\u00ean t\u1ee5c.<\/li>\n\n\n\n
                  • S\u1eed d\u1ee5ng qu\u1ea1t l\u00e0m m\u00e1t ho\u1eb7c b\u1ed9 t\u1ea3n nhi\u1ec7t l\u1edbn cho c\u1ee5c \u0111\u1ea9y.<\/li>\n\n\n\n
                  • Ch\u1ecdn loa ph\u00f9 h\u1ee3p c\u00f4ng su\u1ea5t amply\/c\u1ee5c \u0111\u1ea9y.<\/li>\n\n\n\n
                  • Th\u01b0\u1eddng xuy\u00ean v\u1ec7 sinh b\u1ee5i trong m\u1ea1ch \u0111\u1ec3 tr\u00e1nh \u1ea9m v\u00e0 ch\u1eadp.<\/li>\n\n\n\n
                  • Ki\u1ec3m tra ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh, tr\u00e1nh c\u1eafm v\u00e0o \u1ed5 qu\u00e1 t\u1ea3i.<\/li>\n<\/ul>\n\n\n\n

                    \u2753 FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><\/p>\n\n\n\n

                    1. L\u00e0m sao bi\u1ebft amply b\u1ecb ch\u1ebft c\u00f4ng su\u1ea5t hay ch\u1ec9 l\u1ed7i ph\u1ea7n kh\u00e1c?<\/p>\n\n\n\n

                    \u2192 N\u1ebfu \u0111\u00e8n ngu\u1ed3n v\u1eabn s\u00e1ng, nh\u01b0ng kh\u00f4ng ra ti\u1ebfng d\u00f9 t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o b\u00ecnh th\u01b0\u1eddng, r\u1ea5t c\u00f3 th\u1ec3 t\u1ea7ng c\u00f4ng su\u1ea5t \u0111\u00e3 h\u01b0.<\/p>\n\n\n\n

                    2. C\u00f3 th\u1ec3 t\u1ef1 thay s\u00f2 c\u00f4ng su\u1ea5t t\u1ea1i nh\u00e0 kh\u00f4ng?<\/p>\n\n\n\n

                    \u2192 C\u00f3, nh\u01b0ng c\u1ea7n c\u00f3 \u0111\u1ed3ng h\u1ed3 \u0111o, m\u1ecf h\u00e0n t\u1ed1t v\u00e0 hi\u1ec3u s\u01a1 \u0111\u1ed3 m\u1ea1ch. N\u1ebfu kh\u00f4ng, d\u1ec5 l\u00e0m h\u01b0 n\u1eb7ng h\u01a1n.<\/p>\n\n\n\n

                    3. Thay s\u00f2 c\u00f4ng su\u1ea5t kh\u00e1c lo\u1ea1i c\u00f3 sao kh\u00f4ng?<\/p>\n\n\n\n

                    \u2192 Kh\u00f4ng n\u00ean. S\u00f2 c\u00f4ng su\u1ea5t ph\u1ea3i thay \u0111\u00fang c\u1eb7p t\u01b0\u01a1ng th\u00edch \u0111\u1ec3 tr\u00e1nh m\u00e9o ti\u1ebfng ho\u1eb7c m\u1ea5t c\u00e2n b\u1eb1ng \u0111i\u1ec7n \u00e1p.<\/p>\n\n\n\n

                    4. Amply b\u1ecb s\u00f4i loa, r\u00e8 nh\u1eb9 c\u00f3 ph\u1ea3i do ch\u1ebft c\u00f4ng su\u1ea5t kh\u00f4ng?<\/p>\n\n\n\n

                    \u2192 Kh\u00f4ng h\u1eb3n. C\u00f3 th\u1ec3 do t\u1ee5 l\u1ecdc ngu\u1ed3n y\u1ebfu ho\u1eb7c d\u00e2y mass ti\u1ebfp x\u00fac k\u00e9m. C\u1ea7n ki\u1ec3m tra th\u00eam.<\/p>\n\n\n\n

                    5. N\u00ean s\u1eeda hay thay m\u1edbi khi c\u1ee5c \u0111\u1ea9y b\u1ecb ch\u1ebft c\u00f4ng su\u1ea5t?<\/p>\n\n\n\n

                    \u2192 N\u1ebfu h\u1ecfng nh\u1eb9, s\u1eeda l\u00e0 t\u1ed1t nh\u1ea5t. Nh\u01b0ng n\u1ebfu ch\u00e1y n\u1eb7ng, chi ph\u00ed cao, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc thay c\u1ee5c \u0111\u1ea9y m\u1edbi.<\/p>\n\n\n\n

                    \u2705 K\u1ebft lu\u1eadn<\/strong><\/p>\n\n\n\n

                    Amply ch\u1ebft c\u00f4ng su\u1ea5t ho\u1eb7c c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t 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 ki\u1ec3m tra v\u00e0 s\u1eeda \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n

                    Vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n, quy tr\u00ecnh s\u1eeda v\u00e0 ph\u00f2ng tr\u00e1nh s\u1ebd gi\u00fap thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, b\u1ec1n b\u1ec9 v\u00e0 cho \u00e2m thanh trung th\u1ef1c h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

                    Trong h\u1ec7 th\u1ed1ng \u00e2m thanh, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t l\u00e0 hai thi\u1ebft b\u1ecb \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u, gi\u00fap loa ph\u00e1t ra \u00e2m thanh m\u1ea1nh m\u1ebd v\u00e0 trung th\u1ef1c. Tuy nhi\u00ean, sau th\u1eddi gian s\u1eed d\u1ee5ng, nhi\u1ec1u ng\u01b0\u1eddi g\u1eb7p t\u00ecnh tr\u1ea1ng amply ch\u1ebft c\u00f4ng su\u1ea5t ho\u1eb7c c\u1ee5c \u0111\u1ea9y b\u1ecb h\u01b0 c\u00f4ng su\u1ea5t, khi\u1ebfn thi\u1ebft b\u1ecb kh\u00f4ng c\u00f2n ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c ph\u00e1t ra \u00e2m thanh y\u1ebfu, m\u00e9o ti\u1ebfng.<\/p>\n","protected":false},"author":1,"featured_media":892,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[428],"tags":[216,431,434,423,435,436,433,432],"class_list":["post-891","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sua-chua-thiet-bi-am-thanh","tag-amply","tag-cach-sua","tag-chet-cong-suat","tag-cuc-day","tag-huong-dan","tag-huong-dan-sua","tag-nguyen-nhan","tag-sua-chua"],"yoast_head":"\n\u26a1 Amply ch\u1ebft c\u00f4ng su\u1ea5t v\u00e0 c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t \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\/\u26a1-amply-chet-cong-suat-va-cuc-day-chet-cong-suat-nguyen-nhan-va-cach-sua-chua-hieu-qua\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u26a1 Amply ch\u1ebft c\u00f4ng su\u1ea5t v\u00e0 c\u1ee5c \u0111\u1ea9y ch\u1ebft c\u00f4ng su\u1ea5t \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, amply v\u00e0 c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t l\u00e0 hai thi\u1ebft b\u1ecb \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u, gi\u00fap loa ph\u00e1t ra \u00e2m thanh m\u1ea1nh m\u1ebd v\u00e0 trung th\u1ef1c. 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