索尼KV-SF29M90对比不够强光,ABL电阻没坏,怎么修?-家电-数据之家

接收索尼SF29M90彩电要求修理对比度问题.开机有图像有声音,图像可看得见,但对比不够光,(图像就如对比度不足).遥控器图像最大100也不够强光,亮度正常.ABL电阻没变值,进入维修菜单调进入维修菜单调整后找不到"对比"调整.各位师傅有修过的吗？在这里了
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英文的，前三个字母是CON吧，好象是谁知道当地有线电视台的加密节目，用户端是用“汕龙FU-3300或FU-1500”解码器接收的，给我发短信13617757810或QQ350438219留言，属实的话有机会获赠解码板一块，可以免费收看加密的节目
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进入维修菜单调进入维修菜单调整后找不到"对比"调整.CON没有啊
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加速级电压正常吗？查查哦。
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查一下管尾板上 1000v 前后相关电阻。二极管。。。
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看看有否下列几项:SCN,SBPIC,PMX,PMI等.[audio07][audio07][audio07]
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1KV的电压正常吗？
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１０００伏过去的一个６８０Ｋ的电阻开路了吗
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机已修好.原来Q312微型三极管短路.二极管D315.D316损坏.
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请问怎么进总线的，我安其它的总是进不去
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多谢迅兴的经验之谈。我的一个同样机子同样故障修好，Q312坏。就是看了您的帖子。
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D315.D316 什么2极管？
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