哈囉~我是曾仔… 大家午安!大家好~
好久不見了…,今天來看這一台電視維修…,其機種、型號:HERAN(禾聯)型號:HD-42Z61
![](https://2.bp.blogspot.com/-qa73qN3F48Y/W0LDQTLGvFI/AAAAAAABR4Q/95V8y27gfb02nhLFujNtEFWhykEecXxqQCKgBGAs/s640/001.JPG)
![](https://1.bp.blogspot.com/-LJWEJ7-JjS0/W0LDQSe7_BI/AAAAAAABR4Q/adPXA2xZvs4wak2LeZpybLi4NK9NJJQiQCKgBGAs/s640/002.JPG)
這是它的內部電路分佈:
![](https://4.bp.blogspot.com/-jWgSIsNd4F0/W0LDQSWjiQI/AAAAAAABR4Q/2lOCe88r69wv_Z7rwuNqW5Jdv1R5v3MaQCKgBGAs/s640/003.JPG)
![](https://1.bp.blogspot.com/-0gDEPQtO16Y/W0LDQes4T1I/AAAAAAABR4Q/c3Tjqsgaiqw4tZAZ5tfzjn_epjkdCv4XACKgBGAs/s640/004.JPG)
![](https://3.bp.blogspot.com/-9h8l_r06WfU/W0LDQe6hO8I/AAAAAAABR4Q/OqYB3t-M2JUw69Rpo3L5f6zyNvUp8VTgACKgBGAs/s640/005.JPG)
![](https://1.bp.blogspot.com/-_dTsQJocxZY/W0LDQfFKy6I/AAAAAAABR4Q/Ja_DqLsQqiUqkj6KAn8Lxh2Pko-YFw5tQCKgBGAs/s640/006.JPG)
![](https://2.bp.blogspot.com/-xXZfkij8cls/W0LDQQRflzI/AAAAAAABR4Q/a2I6ej9GZaUuS28m_o-ZTLmJEiZLLl6igCKgBGAs/s640/007.JPG)
![](https://4.bp.blogspot.com/-LKdTmhnLOo0/W0LDQXtIyEI/AAAAAAABR4Q/A2Hx4cCIivUSmVLWEsjfLZrK_wB2-qyWgCKgBGAs/s640/008.JPG)
來測試一下它的故障現象:
送電後有待機紅燈號,這個是正常的…,啟動後也有亮屏…
![](https://1.bp.blogspot.com/-wMvklY_gV6I/W0LDQQ7yuQI/AAAAAAABR4Q/trnPzf10i5E9W4m5yydSo5iqkCsKX4bjQCKgBGAs/s640/009.JPG)
歡迎畫面(WELCON)…也有顯示,不過…,它好像歡迎太久了…,停頓了許久,終於轉換了畫面…,畫面轉了…卻從此停頓在黑亮屏的畫面…,再一回後…,它自行再跳回待機紅燈號的狀態…
,這便是本次要排除的故障現象…
![](https://2.bp.blogspot.com/-pwu6ldArL78/W0LDQQ-Y9nI/AAAAAAABR4Q/DFPQSp5oL3gCfuhdNC3Nv_HDHazB889_QCKgBGAs/s640/010.JPG)
![](https://4.bp.blogspot.com/-YqDvT0KOd04/W0LDQf7WzRI/AAAAAAABR4Q/XZca_djKBEYIBNZF6BRUqeWj3wUf_8dBQCKgBGAs/s640/011.JPG)
![](https://2.bp.blogspot.com/-U3UepBlIBpQ/W0LDQc7VXJI/AAAAAAABR4Q/v_5KkQJYE0oDcETZ7ARmZ0hYBV38repHgCKgBGAs/s640/012.JPG)
電源板二次濾波是正常的…
![](https://1.bp.blogspot.com/-L3YPfucsyZU/W0LDQTtpMLI/AAAAAAABR4Q/KXQg-UUiKecktDZr8hTLI53NRMt5Ewb6ACKgBGAs/s640/013.JPG)
所以…,應該要主機板下手了…
![](https://2.bp.blogspot.com/-J2tvCDvOJis/W0LDQdkYSqI/AAAAAAABR4Q/JsuHyYcxmHsioHE7K0IEWY_G0FpUCbpTQCKgBGAs/s640/014.JPG)
![](https://1.bp.blogspot.com/-MTk1p6uSRsw/W0LDQb2jIoI/AAAAAAABR4Q/05BxSbjwY_Qa32imsaymBuLfQrZoOjArACKgBGAs/s640/015.JPG)
![](https://4.bp.blogspot.com/-Q09uRvIxsdk/W0LDQZXKaGI/AAAAAAABR4Q/M4ZG_AmSo1sX-798DVeUVlz7uU5Sx-CpwCKgBGAs/s640/016.JPG)
atunPCLCD 發表在 痞客邦 留言(0) 人氣()
哈囉~我是曾仔… 大家午安!大家好~
好幾天不見了…,這幾天有些忙碌…
今天來看這一台液晶電視的維修,主角是:VIZIO(瑞軒)型號:V50E
![](https://4.bp.blogspot.com/-u2l_rNzmXiM/WzDDz421t7I/AAAAAAABR0A/V9w5AzsgsLUiknb32CyaAELP-66rKMcgQCKgBGAs/s640/039.JPG)
![](https://2.bp.blogspot.com/-oni4rc-dyg0/WzDDz07XtXI/AAAAAAABR0A/S1vhG-aD_dY-m7E60gPJS1gNVuzE9g2JQCKgBGAs/s640/040.JPG)
這是它的內部構造…
![](https://4.bp.blogspot.com/-so9TpQR4KoQ/WzDDz20_oPI/AAAAAAABR0A/NVIHu9XJABoDpOeEYAMry0TBGklg0Z3JwCKgBGAs/s640/041.JPG)
![](https://4.bp.blogspot.com/-lZ6-Zlh1Cpk/WzDDz_38zdI/AAAAAAABR0A/9SbFNoJg1tgGOdIbW9CIH94OQ2p7JXzgQCKgBGAs/s640/042.JPG)
![](https://2.bp.blogspot.com/-CGnKNMcNU-U/WzDDzzSqiYI/AAAAAAABR0A/ikqoIzzFo3Q5oEPU7Bf7OShYSyJ_S9bUgCKgBGAs/s640/043.JPG)
這是它的故障現象:
送電後,是有閃亮的…,但是不會正常亮起,而最後是熄滅掉的…
![](https://4.bp.blogspot.com/-kD91lK4IBHg/WzDDzyMg0gI/AAAAAAABR0A/SjKoFdEqHS8Kj4JlsD6VYG6H3UAna7LOACKgBGAs/s640/044.JPG)
來看看…量測一下它的背光迴路…
![](https://1.bp.blogspot.com/-dacfswGJ4bk/WzDDz8PobUI/AAAAAAABR0A/n6axVvI0JFQqCLYm-aTtaRy0omgUGoSNgCKgBGAs/s640/047.JPG)
底下這些數據有些高有些低,代表著…各背光迴路中的電壓是不穩定的…,所以閃爍也就算是正常現象…,不過當然是不能收看的
![](https://4.bp.blogspot.com/-hpMjqVHAgwA/WzDDz0cZQOI/AAAAAAABR0A/qR07hx-2zgYvaSY9plt3VK7bULGIXnycwCKgBGAs/s640/048.JPG)
![](https://4.bp.blogspot.com/-Vo9q_COMjDg/WzDDz2PEJxI/AAAAAAABR0A/pTHqAmQv_HQR604oqsmS0vNoSHGXxLJBACKgBGAs/s640/049.JPG)
![](https://3.bp.blogspot.com/-8Rfjuj2ra7Q/WzDDz_NJqcI/AAAAAAABR0A/_vklLm0TymofPW-Z8jvT_GeCNfwD1aZpQCKgBGAs/s640/050.JPG)
![](https://1.bp.blogspot.com/-87TVwQM_ToU/WzDDz8GDZTI/AAAAAAABR0A/teGJgb-zkvc9ve0kU52n5m8hVH3H2d4kwCKgBGAs/s640/051.JPG)
![](https://3.bp.blogspot.com/-gaCN7Rwy8UE/WzDDz5kSYZI/AAAAAAABR0A/pkXSwdB8QZMoPnBtwodnhBF6NIPxepD0wCKgBGAs/s640/052.JPG)
![](https://4.bp.blogspot.com/-BJ18S1enyDU/WzDDz4bmBHI/AAAAAAABR0A/pg70MjbkLpwP_ewg3v7wT_BFTK5W1OV1gCKgBGAs/s640/053.JPG)
所以…拆解面板查修燈珠…,已經是在所難免的…
『免責聲明一下:拆解面板有損傷玻璃基板風險(亮線、寬帶顯示不良、玻璃基板破損),維修者不負責任的喔…』
![](https://1.bp.blogspot.com/-1YSdrBuVMGU/WzDDz_YTwmI/AAAAAAABR0A/XxTWvsPJb_YlGhUJ9u6dfcq4JimGBol4QCKgBGAs/s640/055.JPG)
atunPCLCD 發表在 痞客邦 留言(0) 人氣()
哈囉~我是曾仔… 大家午安!大家好~
今天來看這一台電視維修…,主角是:CHIMEI(奇美)型號:TL-42LX5D 900(TL-42LX500D)
![](https://4.bp.blogspot.com/-Q0KTgWssJN0/WynJoNJKN1I/AAAAAAABRxM/GnYmWyeoNWAQNHuEt1fQkEx8TeipKTofQCKgBGAs/s640/006.JPG)
![](https://4.bp.blogspot.com/-Q0UVNJOQzH4/WynJoLdqnBI/AAAAAAABRxM/ItsTv8BP0m8OXkGNGHa0TWPxjFFAGf0eQCKgBGAs/s640/007.JPG)
這是它的內部電路分佈:
![](https://3.bp.blogspot.com/-itTQzBmWjT4/WynJoPNYjiI/AAAAAAABRxM/OaXXeNPjFNQZa6IzEk5Y1oZRP_VTFsW8gCKgBGAs/s640/008.JPG)
![](https://1.bp.blogspot.com/-H1l-RTtk8rc/WynJoFAJz_I/AAAAAAABRxM/FhP38XBtOqYvqayV_mgX1Hq-iQVbZpPgACKgBGAs/s640/009.JPG)
![](https://2.bp.blogspot.com/-VHr1c5BEgTs/WynJoE338xI/AAAAAAABRxM/Szi9eA62AHE50gygqNIsYHLM1uxtk7eqQCKgBGAs/s640/010.JPG)
![](https://2.bp.blogspot.com/-StZu7_rGMlg/WynJoK5OZbI/AAAAAAABRxM/3h3UvE-xRW8kiBmo5ZotZZwCHztnY1jvwCKgBGAs/s640/011.JPG)
這是它的故障現象,送電後有亮待機紅燈號…,啟動後也有轉變成綠燈號…
![](https://4.bp.blogspot.com/-SiXh6uTYzfQ/WynJoAOwPGI/AAAAAAABRxM/PipHPUEVjccHjt76ewmVYRmZwai22WmfwCKgBGAs/s640/012.JPG)
![](https://2.bp.blogspot.com/-4nKYDPhEGF0/WynJoAQP3pI/AAAAAAABRxM/YE2vZKBWoKoV3CC6gNJJ0VzCb3XGwZ22gCKgBGAs/s640/013.JPG)
這時…應該要亮起背光的…
你有看到的。它並沒有亮起…
![](https://3.bp.blogspot.com/-oiGl8uBl0dg/WynJoKnCE9I/AAAAAAABRxM/E8aubVItvRokZcKej2lBuiKP9qJiGsA5wCKgBGAs/s640/014.JPG)
![](https://1.bp.blogspot.com/-jf4rxuy-Z_s/WynJoJJkySI/AAAAAAABRxM/xjhA-CPt8FcBhRVlPYI_XGNljfTzMWQjQCKgBGAs/s640/015.JPG)
查量一下電供板輸出…,除了待機電壓外也均無電壓輸出…
![](https://3.bp.blogspot.com/-Et-64YXj_cc/WynJoAiinEI/AAAAAAABRxM/iIbgZFmI2ywScCkDAYjHCs5KgSQRIXujACKgBGAs/s640/016.JPG)
![](https://3.bp.blogspot.com/-u0VIgYi5srY/WynJoI-ZJdI/AAAAAAABRxM/VFVqzmcRKnEW2vvrZyb6wSD14x3ED_GsACKgBGAs/s640/017.JPG)
![](https://3.bp.blogspot.com/-82w5DqbVL30/WynJoDmZiAI/AAAAAAABRxM/uzoV6l3UzEg2bgmnmgY1bG5D8Bc8LTaewCKgBGAs/s640/018.JPG)
![](https://1.bp.blogspot.com/-YfHDYGsJUGY/WynJoD8ltSI/AAAAAAABRxM/JMznLfZ6npsyhAnPW99NkpTym7hWKj7CwCKgBGAs/s640/019.JPG)
那你會問說…
是不是主板啟動主電源的訊號沒有到來啊…?
底下已經清楚的告訴你,主板有送入主電源的啟動訊號喔…
![](https://4.bp.blogspot.com/-RRtvNfM3MBU/WynJoJlSWqI/AAAAAAABRxM/SQkUEy7vk9s5NjN4z1V7Haxcg9xYcPOuQCKgBGAs/s640/020.JPG)
atunPCLCD 發表在 痞客邦 留言(0) 人氣()