哈囉~我是曾仔… 大家午安!大家好~
結束了元旦假期…,又開始在期待著下一個超長假期…慢慢等欸…
今天繼續來看液晶電視維修…,是底下這一個廠牌、型號:
SONY(索尼)型號:40CX520
![](https://3.bp.blogspot.com/-LLoUvBEqncw/WkwqMR9CN3I/AAAAAAABNKA/hPgprB9f-HcXMUeWhL5X0cvx1vGxzg-hgCKgBGAs/s640/012.JPG)
![](https://2.bp.blogspot.com/-HSvQh8RSmPo/WkwqMeXvR6I/AAAAAAABNKA/YIz2GhN9jQ4Xu4GxsYd6au-N8qDhLglKgCKgBGAs/s640/013.JPG)
這是它的內部電路構造:
![](https://1.bp.blogspot.com/-pkoYJIK7s1Y/WkwqMZNgSTI/AAAAAAABNKA/NW6_qe8cwE0MeynUpPS8ilMU-pU5wV5vgCKgBGAs/s640/014.JPG)
![](https://2.bp.blogspot.com/-KRIyeT_ErRE/WkwqMfzrUTI/AAAAAAABNKA/Q1m-1bisMxMC2Wlpqp8k-wlHBLNQ2Mx2wCKgBGAs/s640/015.JPG)
![](https://2.bp.blogspot.com/-8E62-s1MaWw/WkwqMRX2HDI/AAAAAAABNKA/cZcT7BBv9ngR0DwUOxKTN5FwO_oKbW0xgCKgBGAs/s640/016.JPG)
話說…這SONY CX系列裡,32吋的那型(32CX520)老是面板出狀況…,光在我手裡的就殺肉了好幾台…,同系列40吋的到是沒遇過面板方面的問題…
送電測試的當下…,其實顯示是正常的…,不過你要注意的是影像背後有些部份是不是較暗陳…
![](https://4.bp.blogspot.com/-CScka1_l__I/WkwqMYP63DI/AAAAAAABNKA/tXmG7VcPpfcxTfodezHfcdJNzYEOSTEbgCKgBGAs/s640/017.JPG)
![](https://1.bp.blogspot.com/-TGbOCtapbOo/WkwqMV9DUFI/AAAAAAABNKA/2KY7DjIsdbE9A4Mgr3YiuvHud8LqzdtMACKgBGAs/s640/018.JPG)
![](https://1.bp.blogspot.com/-4Wtd37X4aGk/WkwqMeRi13I/AAAAAAABNKA/gtCxIhEOS6kQ_dmWJNbqHB7Bb_VrPFD2QCKgBGAs/s640/019.JPG)
![](https://1.bp.blogspot.com/-2adk5Gqjq24/WkwqMch-NKI/AAAAAAABNKA/4Swy_bgwpeoNEnQKemgQO0EP49QXGqGegCKgBGAs/s640/020.JPG)
先解了…背光驅動板做查檢…補強…
![](https://3.bp.blogspot.com/-QmNVREsTOUE/WkwqMUSY9NI/AAAAAAABNKA/ZnL-XW2LFPsg4E77AWc5_FZM1VqHmVmcQCKgBGAs/s640/021.JPG)
![](https://1.bp.blogspot.com/-VKplwtzvMqo/WkwqMRHxGrI/AAAAAAABNKA/xTvNPwba6Ykg6vQ08Rd9EAuMyzZdwV1dACKgBGAs/s640/022.JPG)
剛剛上頭若是看不出來…,現在直接送入白底畫面…,你一看便明瞭…
![](https://4.bp.blogspot.com/-wn-4zHMAwC4/WkwqMfudxcI/AAAAAAABNKA/uCrvWgPO9CgOaDi9RnHV6tGafqRkPClEwCKgBGAs/s640/023.JPG)
![](https://1.bp.blogspot.com/-131PaDgRAaY/WkwqMeJNmtI/AAAAAAABNKA/3LTJcUToLfoIBTP86E0Xo2kJarY1zsjogCKgBGAs/s640/024.JPG)
沒有錯啦…
背光驅動的升壓線圈已經燒毀…,正常部位與不正常的兩相比較…
![](https://3.bp.blogspot.com/-E8rw4R8QHwc/WkwqMbKQT6I/AAAAAAABNKA/cwyzUhPSMjIU7lBgTU1vdx5MWINIQwPywCKgBGAs/s640/025.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~
說著…說著…,這9月份還連續來了兩台32V300A,可見機器受主人青睞的程度非同小可…
一起來看看這台又是怎麼一回事…
上一篇紅燈號閃爍兩下,這篇主角上頭標題已說明:便是紅燈號閃爍8下…
![](https://4.bp.blogspot.com/-q0fCFy9LJVo/Wkr0gRZwVjI/AAAAAAABNH4/2fA7P76661M-8XmkMYM598UdOnYv8FACACKgBGAs/s640/005.JPG)
直接拆解到內部…,它的電路構造大家都看得很熟悉…
![](https://1.bp.blogspot.com/-ma2N5QXCSVM/Wkr0gZn5hqI/AAAAAAABNH4/1mK7zilzEkYkhejzI_BwKqnvMYpoqubgACKgBGAs/s640/006.JPG)
![](https://4.bp.blogspot.com/-WFO1Hq3zU0s/Wkr0gROYrBI/AAAAAAABNH4/H_o_RzoKzaIhX4DVN48M81i6Z2463PVjQCKgBGAs/s640/007.JPG)
![](https://3.bp.blogspot.com/-fD0mGqrLtUY/Wkr0gZqqJ2I/AAAAAAABNH4/jPr02xrYuicNR7WRhSGEfer1Oax59gi6ACKgBGAs/s640/008.JPG)
![](https://3.bp.blogspot.com/-GlmMN_WKhQw/Wkr0gXtFXLI/AAAAAAABNH4/Wi0B94JrsuUv5Z3sFvUDf1qTfOBPDan9ACKgBGAs/s640/009.JPG)
紅燈號閃爍8下,就是主機板出問題…
所以直接解下主機板查檢啦…
![](https://1.bp.blogspot.com/-aDF-z49gMoE/Wkr0gQD7YCI/AAAAAAABNH4/ZgXE9xkieyEmympbUi5vPfIMEWICaT1BACKgBGAs/s640/010.JPG)
![](https://3.bp.blogspot.com/-HjlmtKtwS-c/Wkr0gf6fCvI/AAAAAAABNH4/fTM9nvpC4RobPvGT1hwbkQjBJ4FE5zp0wCKgBGAs/s640/011.JPG)
![](https://2.bp.blogspot.com/-BBO2XpRBOrQ/Wkr0gcx9d2I/AAAAAAABNH4/7u__TQolZ8wJjIr7N1fAPE2cwsMIBfwIgCKgBGAs/s640/012.JPG)
其實先前…
全機就已經先行測試過輸出電壓的…
![](https://1.bp.blogspot.com/-8Tnk2pSCMY8/Wkr0gUbeW8I/AAAAAAABNH4/DZj_hiu04kYyutDVfnW4gN0GELhlmpPvQCKgBGAs/s640/013.JPG)
![](https://2.bp.blogspot.com/-0gouKjNpExo/Wkr0gclxOKI/AAAAAAABNH4/w3E0_Zny-JUjAyvlMt4V_c-4eX83vEwJQCKgBGAs/s640/014.JPG)
就這一型號來說,閃爍8下…通常指的是主板上音效部位出問題…,啊…是音效IC有問題?還前級有問題,亦或是功放IC電源有問題,那就要查量以後再說…
底下是它的功放IC腳位定義…
![](https://2.bp.blogspot.com/-0SojaozltP4/Wkr0gccrqeI/AAAAAAABNH4/EAQNfJijCXsMr9CVEzDsXHi1czYCT86yACKgBGAs/s640/2017-09-14%2B08_51_57-datasheet.pdf%2B-%2BFoxit%2BReader.png)
多半高放IC底部都有大接地(藉以幫忙IC散熱…),所以…拆解功放最好能夠上下加熱,這可得到事半功倍的效果…
![](https://3.bp.blogspot.com/-_tywHEDbyy4/Wkr0gb5cXBI/AAAAAAABNH4/Pu6gyLn0Grsx1gT4IW36o3ReLsC_h_hUgCKgBGAs/s640/015.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~
跨完年…又看日出…,看來你已經累趴了…
今天繼續來看液晶電視維修,是底下這一個廠牌、型號:SONY(索尼)型號:KLV 32V300A
![](https://3.bp.blogspot.com/-gUxOAYcHlG0/Wkn5a-97J8I/AAAAAAABNEU/1scVAOITdVcwxc0-uYQeZ7ojvsAxzGtkACKgBGAs/s640/001.JPG)
![](https://2.bp.blogspot.com/-gOuRAtQApQY/Wkn5a6lKr8I/AAAAAAABNEU/kv0qI_RwhEccqDmF7ywHXigSbsddHrUsACKgBGAs/s640/002.JPG)
這是它的內部電路,你們應該看過很多遍了…,上個越還說幾乎每個月都有這個型號送修前來,這個果然又驗證了…
![](https://4.bp.blogspot.com/-0LpEznv6K6Y/Wkn5a7Aw9jI/AAAAAAABNEU/s0VksMeRdDE5JEz9AfnbU7vKAmhUhjv9gCKgBGAs/s640/004.JPG)
![](https://3.bp.blogspot.com/-yShxZOOwto8/Wkn5az2L_TI/AAAAAAABNEU/qJ602pa8mRw5TbxQ6dWZE9uUdT7Y0BpNgCKgBGAs/s640/005.JPG)
![](https://4.bp.blogspot.com/-3Orc6sEMA_4/Wkn5a4Vyu1I/AAAAAAABNEU/ZC_QufGa6-UxAx_KBhckPZ8XBGnj_9JKQCKgBGAs/s640/006.JPG)
![](https://2.bp.blogspot.com/-vYOs3cfRfmQ/Wkn5a0Sxj6I/AAAAAAABNEU/cbJaJ0EIlegp1JITgY3KU1J3g8p-jvRNwCKgBGAs/s640/007.JPG)
它的故障現象是紅燈號閃爍兩下…,其實有拍攝動態影片,不過我懶得PO了,借用一下以往的影片來示範:
atunPCLCD 發表在 痞客邦 留言(0) 人氣()