My son's electric guitar amplifier has a mono, 1/4" phono plug for the input, and that receptacle is soldered on to a circuit board. The jack is broken, and missing the metal sleeve insert, so I think I need to replace it.
I found a replacement part at Radio Shack and it has 2 tabs as I would have expected. (signal and common)
Panel-Mount 1/4" Mono Jack - RadioShack.com
I haven't removed the existing receptacle from the board yet, but it seems to have four contact points with the pcb.
Why four?
Any insights?
Other suggestions?
Thanks,
Nate
Broken input jack:
![input..jpg input..jpg](https://www.electro-tech-online.com/data/attachments/33/33820-52343934a94241be380cfc43c075103c.jpg)
Good headphones jack:
(even more contact points on the pcb!)
![headphone..jpg headphone..jpg](https://www.electro-tech-online.com/data/attachments/33/33821-db9c6de5f04befb00d709e7b8e0feec6.jpg)
Input jack soldered to pcb:
![phonoPlugBoard..jpg phonoPlugBoard..jpg](https://www.electro-tech-online.com/data/attachments/33/33822-6ab7edff7141cb809b4b7efee7198005.jpg)
Input jack from the topside:
![phonoPlugTop..jpg phonoPlugTop..jpg](https://www.electro-tech-online.com/data/attachments/33/33823-3c6e549c14b97998964dc899b06ed2ee.jpg)
Replacement jack from Radio Shack:
![phonoPlug..jpg phonoPlug..jpg](https://www.electro-tech-online.com/data/attachments/33/33825-1f053ab468d9e865e723a8265b1ef6e9.jpg)
I found a replacement part at Radio Shack and it has 2 tabs as I would have expected. (signal and common)
Panel-Mount 1/4" Mono Jack - RadioShack.com
I haven't removed the existing receptacle from the board yet, but it seems to have four contact points with the pcb.
Why four?
Any insights?
Other suggestions?
Thanks,
Nate
Broken input jack:
![input..jpg input..jpg](https://www.electro-tech-online.com/data/attachments/33/33820-52343934a94241be380cfc43c075103c.jpg)
Good headphones jack:
(even more contact points on the pcb!)
![headphone..jpg headphone..jpg](https://www.electro-tech-online.com/data/attachments/33/33821-db9c6de5f04befb00d709e7b8e0feec6.jpg)
Input jack soldered to pcb:
![phonoPlugBoard..jpg phonoPlugBoard..jpg](https://www.electro-tech-online.com/data/attachments/33/33822-6ab7edff7141cb809b4b7efee7198005.jpg)
Input jack from the topside:
![phonoPlugTop..jpg phonoPlugTop..jpg](https://www.electro-tech-online.com/data/attachments/33/33823-3c6e549c14b97998964dc899b06ed2ee.jpg)
Replacement jack from Radio Shack:
![phonoPlug..jpg phonoPlug..jpg](https://www.electro-tech-online.com/data/attachments/33/33825-1f053ab468d9e865e723a8265b1ef6e9.jpg)
Last edited: