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一台日本产BODYSONIC牌高级组合音响所附VCD机,因读碟不畅且时有停顿及马赛克现象,被机主自行拆机过量调整激光头之功率电位器,造成激光管损坏,且又盲目自修,导致激光头整体报废,无法修复,只好更换。由于本机无图,激光头上也无型号,故不能贸然拆之。首先观其伺服板,只见该板仅使用三块贴片集成块,即DSP为MN662720RB、RF放大为AN8806SB、驱动为BA6398FP,板上无调整点,激光头联接插座为单排15个芯座,突然想起以前见过类似的板子。忙把维修记录翻开查阅,发现JVC—MV33BK型三碟机的伺服板和此板所用集成块、激光头联接电缆编号均一样,
A Japanese-made BODYSONIC advanced combination of audio equipment attached to the VCD machine, due to poor reading discs and sometimes pause and mosaic phenomenon, the owner disassemble excessive laser head power potentiometer, resulting in laser tube damage, but also blind Self-study, leading to the overall laser scrapped, unable to repair, had to change. Because there is no picture on the machine, no model on the laser head, it can not be dismantled. First of all look at the servo board, I saw the board only uses three patch integrated block, that is, the DSP is MN662720RB, RF amplification for AN8806SB, driven by BA6398FP, no adjustment point on the board, laser head connector socket for a single row of 15 core , Suddenly remembered a similar board seen before. Busy to open the inspection records and found JVC-MV33BK-type three-disc drive servo board and this board are used integrated block, laser head connection cable number are the same,