做Jimmy page切单电路

yuehuan14

做了个如下图所示的切单电路

把拾音器、电位器、jack口、档位器都换了新的
问题出现了，连好电路后把拾音器串联，理论上讲此时把档位器切换到琴桥的时候是没有信号的，但是竟然有信号！反复检查线路，没有焊接错误的地方，多次试验，发现竟然是琴颈的拾音器无法断开，怀疑是新档位器有问题，卸掉焊线测试，能正常断开，档位器如图，epi专用的

反复转焊没用，换回原装的档位器

竟然正常了……
反复测量换下来的新档位器，完全能正常断开，重新焊上去，还是出现琴颈不能断开的问题（信号变弱，但是就是断不开）没办法，换下新的，换上原来的锈迹斑斑的档位器
有没有高人知道这其中的奥秘？
(注：图片来自网络，非本琴真实图片）

[ 本帖最后由 yuehuan14 于 2010-1-27 12:59 编辑 ]

niuqudeguantou

yeesie

你的拾音器可以切单吗?这个是个问题.

yuehuan14

原帖由 yeesie 于 2010-1-27 14:53 发表
你的拾音器可以切单吗?这个是个问题.

你说呢？这不算个问题。

yeesie

能切单就去网上找你拾音器的连接办法.

yuehuan14

已经连好了啊，可以切单、反相、串联，一切功能正常！就是搞不懂那个新的档位器怎么就不能用……

fengyerudan1

mark下来以后看

rainynights

我的epi ultra II就是档位器有问题，那琴我用了1年了，一直没感觉档位开关有什么变化，我以为是我耳朵灵敏度低。。

直到有一天我觉得我的琴出力太小，拆开想看看内部电路时，才发现下档和中间档，是一模一样的，就是永远没有琴桥拾音器单独工作的时候。

按道理，切到下档的时候，中间的簧片和上面的簧片接触、和下面的断开，上档反之，中间档中间的簧片会和两端都接触。

我把档位器的簧片掰了下，搞好了装回去，一切OK。

smart_li2002

可能是質量問題 我也遇過

paulyang

楼主，我的epi std 和epi es335 都改成了jp的电路，但是我要指出的是，你的这个电路图和seymour duncan的电路图都是有误的，不知道你的拾音器是什么牌子的？
我的是sh1   sh4，经过无数次实验，我从一个国外烧友那里找到的电路图终于成功，一共有21音色，不知道你的是不是21种？


我们可以讨论一下，其实这个电路图，到现在我也是觉得好玩，自己是没有jp的天分，要去用上这个21个音色的。遗憾的是原来的网站可以找电路图，如今这个老外也罢电路图删掉了，改成了自己给别人改琴的链接，要收钱了，我电脑里的图纸也被我格式化后丢失了，可惜了。

下面是21个音色：
New 50's style 21 Tone Jimmy Page Switching functions...

NV= Neck Volume
NT= Neck Tone
BV= Bridge Volume
BT= Bridge Tone
HB= Full humbucker
--------------------------
Switch set to Bridge pu...

1.  All controls down-bridge pu in full HB Mode
2.  BV pulled out-bridge pu screw coil is on
3.  BV,BT pulled out-bridge pu is split and slug coil is on

--------------------------
Switch set to Middle postion...

4.  All controls down-neck HB and bridge HB are parallel in phase
5.  BT pulled up-neck HB and bridge HB pu's are parallel out of phase
6.  BV pulled up-neck HB and bridge screw coil is on pu's are parallel in phase
7.  BV,BT pulled out-neck HB and bridge slug coil on pu's are parallel in phase
8.  NV pulled up-neck screw coil is on and bridge HB pu's are parallel in phase
9.  NV,BT pulled up-neck screw coil is on, bridge HB pu's are parallel out of phase
10. NV,BV pulled out-Neck screw coil on, bridge screw coil on pu's are parallel in phase
11. NV,BV,BT pulled out-neck screw coil is on, bridge slug coil is on pu's are parallel out of phase
---------------------------
Switch set to Neck position...

12. All controls down-neck is in full HB mode
13. NV pulled out-neck screw coil is on
14. NT pulled out-neck HB and bride HB series in phase
15. NT,BT pulled out-neck HB and bridge HB series out of phase
16. NT,BV pulled out-neck HB and bridge slug coil is on pu's are series in phase
17. NT,BV, BT neck HB and bridge slug coil is on pu's are series out of phase
18. NV,NT pulled out-neck screw coil is on bridge HB pu's are series in phase
19. NV,NT, BT pulled out-neck screw coil is on bridge HB pu's are series out of phase
20. NV,NT,BV-neck screw coil is on bridge screw coil is on pu's are series in phase
21. NV,NT,BV,BT-neck screw coil is on bridge screw coil is on pu's are series out of phase
---------------------------