Ibanez - UE400 and UE405 [schematic]
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- Posts: 1
- Joined: 23 Jan 2021, 10:45
Dr. Bob-
I recently acquired 2 ue-400s, neither of which has a switch. These have really taken off in value - going for $500 ish on reverb and eBay- I digress
My switch for my ue 405 works with them but I’d rather have dedicated footswitches for each.
My question is could you build me 2 of your switches?! And what would you charge? I’d pay shipping on top of our negotiated price.
I’m reasonably handy with a soldering iron but don’t have the time nor more importantly the space to attempt such a build....
Thanks!
I recently acquired 2 ue-400s, neither of which has a switch. These have really taken off in value - going for $500 ish on reverb and eBay- I digress
My switch for my ue 405 works with them but I’d rather have dedicated footswitches for each.
My question is could you build me 2 of your switches?! And what would you charge? I’d pay shipping on top of our negotiated price.
I’m reasonably handy with a soldering iron but don’t have the time nor more importantly the space to attempt such a build....
Thanks!
Hello!
A few weeks ago I got back my original UE400 by chance, which I had in my first band in the early 80ies. As expected, it didn´t work, but it seemed that the footswitch was the problem. In search for a new one I found this (super!!) thread (thanks a lot!!) and was encouraged to repair it. With jumpers I found out that the effects unit and the small circuit boards inside the foot controller were working well. So I decided not to make a new footswitch but to replace just the push buttons.
The ones I found fitted nearly perfect. I only had to file the original holes to a round shape and used the screw nuts of the old buttons as washers (filed/grinded away the thread), because the body of the new ones extended too far into the box and touched the circuit boards.
One wire of the push button I soldered to the “SW“ hole (where the original red wire was soldered), the other one to „GND“.
I don´t know if this would be road-proof, but for my home use it works perfect.
The new buttons are mady by Tru Components (Great Britain?) distributed by Conrad electronics here in Austria. They switch 48V/2A which is far enough and are sold as „vandal proof“. So I expect them to last a very long time.
mfrue
attached some pictures:
A few weeks ago I got back my original UE400 by chance, which I had in my first band in the early 80ies. As expected, it didn´t work, but it seemed that the footswitch was the problem. In search for a new one I found this (super!!) thread (thanks a lot!!) and was encouraged to repair it. With jumpers I found out that the effects unit and the small circuit boards inside the foot controller were working well. So I decided not to make a new footswitch but to replace just the push buttons.
The ones I found fitted nearly perfect. I only had to file the original holes to a round shape and used the screw nuts of the old buttons as washers (filed/grinded away the thread), because the body of the new ones extended too far into the box and touched the circuit boards.
One wire of the push button I soldered to the “SW“ hole (where the original red wire was soldered), the other one to „GND“.
I don´t know if this would be road-proof, but for my home use it works perfect.
The new buttons are mady by Tru Components (Great Britain?) distributed by Conrad electronics here in Austria. They switch 48V/2A which is far enough and are sold as „vandal proof“. So I expect them to last a very long time.
mfrue
attached some pictures:
- Attachments
- Bernardduur
- Transistor Tuner
I got a UE400 in for some issues; those issues were dirty position switches that after a cleaning were functioning properly
This unit got the distortion section. I couldn't find any schematics anywhere, so I traced it.
As you can spot the TA7136 chip is prominent in this unit.
EnjoY!
I'll add some pics on my instagram later!
This unit got the distortion section. I couldn't find any schematics anywhere, so I traced it.
As you can spot the TA7136 chip is prominent in this unit.
EnjoY!
I'll add some pics on my instagram later!
'No more....... loud music.......'
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
Follow my love for pedals and amps on https://bernardduur.blogspot.com and https://www.instagram.com/bernardduur1
- lolbou
- Old Solderhand
I have one here found for 5 euros at a charity shop without the FS. I thought about making a new pcb to retrofit instead of the original connector one, using a 9 pin parallel socket (old mouse type). That would allow the original one to be put back in if required, and would allow a DIYed fooswitch to be made as seen above.
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.
- Uh, no, I'm a mocker.
- CheapPedalCollector
- Resistor Ronker
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- Posts: 1
- Joined: 25 Aug 2023, 04:40
Thanks all for this thread—it's a trove of info on this old FX box!
I recently acquired a UE-405 without the footswitch.
Using the info here, I was able to short the pins in the footswitch connector and test the unit.
I have a few questions I hope to get some help with:
1) The delay does not receive the input signal (all other FX do).
I know the effect works because it self-oscillates when I turn the feedback all the way up.
I've tried reading the schematic and troubleshooting via continuity testing, but could not come to any conclusions, and could use some help.
Where should I start with diagnosing this problem?
2) I want to build a foot switch, but I can't seem to find the 8-pin EIAJ / Honda cable for sale anywhere.
Because of that, I'm considering replacing the connector on the unit with a DB9 (serial) connector.
Has anybody done this? Any reason not to?
3) I would like to add an on/off switch for the send/receive loop (i.e., toggle to bypass the loop.)
How can I go about doing that?
The footswitch connector has an unused pin that could support the extra switch, but I could use some help with modifying the circuit.
Thanks for reading, and for any help you can provide!
I recently acquired a UE-405 without the footswitch.
Using the info here, I was able to short the pins in the footswitch connector and test the unit.
I have a few questions I hope to get some help with:
1) The delay does not receive the input signal (all other FX do).
I know the effect works because it self-oscillates when I turn the feedback all the way up.
I've tried reading the schematic and troubleshooting via continuity testing, but could not come to any conclusions, and could use some help.
Where should I start with diagnosing this problem?
2) I want to build a foot switch, but I can't seem to find the 8-pin EIAJ / Honda cable for sale anywhere.
Because of that, I'm considering replacing the connector on the unit with a DB9 (serial) connector.
Has anybody done this? Any reason not to?
3) I would like to add an on/off switch for the send/receive loop (i.e., toggle to bypass the loop.)
How can I go about doing that?
The footswitch connector has an unused pin that could support the extra switch, but I could use some help with modifying the circuit.
Thanks for reading, and for any help you can provide!