Ibanez Combo Amp: Unusual Input Jack - Page 1
Forum section: electronics / repair

author: Helmanfrow
author_rank: Contributor
timestamp: December 22, 2022, 06:55:37 pm
content: I have an old Ibanez SWX20 instrument combo amp with a broken input jack.This would be a simple repair save for the fact that I am unable to find a suitable replacement part.The shunt mechanism on the original jack is sprung on the left and opens on the right.All the other jacks I've seen so far have this reversed, opening on the right.Installing one of these would send the signal to ground.Here's a typical jack found online:[ Attachment Invalid Or Does Not Exist ]Here's an album with photos of the amp PCB in question:https://photos.app.goo.gl/5RV1Q1o6ku96uLPp9You'll notice in the photos that there is a metal grounding collar around the input. I believe this is for chassis ground, which is kept separate from signal ground by passing it through a capacitor. I haven't removed the jack yet but it appears to be a separate part.I realize that a little creativity can get me around this but I'd rather find a matching part before resorting to hacks.I've contacted Ibanez but I have not yet heard back from them.I'm hoping someone here has the resources to help me find the right replacement part.Anyone?

author: Bud
author_rank: Super Contributor
timestamp: December 22, 2022, 08:00:06 pm
content: Ibanez beeing now made in China I do not think they have designed proprietiry parts, the connector is likely a standard part that is used in similar type of gear. Try "guitar amps repair" shops in your area.

author: wraper
author_rank: Unknown
timestamp: December 22, 2022, 08:48:47 pm
content: I don't have one at hand to verify but it looks like housing is symmetric and contacts can be inserted from opposite sides. Maybe destroy plastic housing on one connector to remove undamaged contacts. Then destructively remove contacts from another connector to not damage the housing. Then reinsert new contacts from opposite sides.

author: YurkshireLad
author_rank: Frequent Contributor
timestamp: December 22, 2022, 08:52:11 pm
content: I dont know if these guys could help, but it might be worth an email -https://nextgenguitars.ca/

author: fenugrec
author_rank: Frequent Contributor
timestamp: December 22, 2022, 11:12:09 pm
content: Have you gone through all the catalogs from Neutrik / Rean, and Switchcraft ? form factor looks very familiar.Plan B in the unlikely scenario that it is really a custom part, finding a mechanically-compatible part and rewiring the PCB traces would be my preference.

author: David_AVD
author_rank: Super Contributor
timestamp: December 24, 2022, 01:38:40 am
content: Same reply as in your other thread: Cliff S2BBBPCC

author: wraper
author_rank: Unknown
timestamp: December 24, 2022, 10:39:23 am
content: Quote from: David_AVD on December 24, 2022, 01:38:40 amAnd it's not what OP needs. He needs similar but with switching contacts on opposite side.

author: David_AVD
author_rank: Super Contributor
timestamp: December 25, 2022, 09:30:48 pm
content: Sorry, I missed that detail. The pins should be able to be removed and reassembled the other way. I've done something similar in the past.

author: Helmanfrow
author_rank: Contributor
timestamp: December 28, 2022, 04:51:18 am
content: Hey, so it turns out that Ibanez replied to my email. They were in the middle of inventory and won't be able to ship until January 3rd but they do have the part in stock.My thanks to everyone who replied in the thread.Quote from: fenugrec on December 22, 2022, 11:12:09 pmYes, I pored through all those catalogs. It's a familiar form factor but as I said the shunts open the wrong way 'round, invalidating all the lookalikes.

author: Helmanfrow
author_rank: Contributor
timestamp: December 28, 2022, 04:52:51 am
content: Quote from: David_AVD on December 24, 2022, 01:38:40 amYeah, sorry, there were some server glitches when I was posting. I kept getting some kind of error but it turns out the post went through. I only found out now when i came back to try again. I must have double-posted inadvertently.