az6826

轻轻留步

kaosun老师，我的6826维修到一半进展太慢了，电容都换了，部分损坏原件也换了，也处理了不少腐蚀断。路目前通电，光头动作正常，发光正常，读盘分2种情况:1,光盘先正传，后反转，然后高速旋转。2，光盘抖动，转不起来，用手辅助能转，偶尔能读出TOC,也能播放但卡顿。近期又查出电源部分一个电阻（3253）阻值变大，拆下来测量的，A点输出电压比标称电压要高出不到1伏，其他电源输出都正常，不知道这个影响大不大，老师我还得需要从哪里下手呢！以上都是电源6V测试结果，电池没有测试，谢谢！

轻轻留步

Teacher Kaosun, the repair of my 6826 is progressing too slowly. The capacitors have been replaced, as well as some damaged components. Many instances of corrosion and breaks have also been fixed. Currently, the device is powered on, and the optical head operates normally, with proper lighting. There are two issues with disk reading: 1) The disc first rotates forward, then backward, before spinning at high speed. 2) The disc shakes and won’t spin properly, but it can be rotated manually. Occasionally, the TOC can be read, and the disc can play, though with lagging. Recently, it was discovered that the resistance value of one resistor (3253) in the power supply section has increased. After removing it for testing, the voltage output at point A was less than 1 volt higher than the nominal voltage. All other power supply outputs were normal. I’m not sure how significant this issue is. What should I do next, teacher? The above results are from tests on the 6V power supply; the battery hasn’t been tested yet. Thank you!