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JuiceeciuJ
Copper Member
Canada
7 Posts |
 Posted - 07/15/2007 : 03:09:04
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Ok, so I have this CE-2B which was working about 2 months ago. I came to use it the other day and it wasn't working. i tried the pedal with an LED and then with an adapter. The LED didn't go on at all and there was no sound going through the pedal to the amp. You guys have any ideas as to what could be wrong with it? I took the thing apart and everything looks to be ok. Please help.
Thanks
Joe |
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stahlhart
Platinum Member
1318 Posts |
Posted - 07/15/2007 : 04:45:35
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Boss pedals are not mechanically switched, so you won't get any signal passing through without circuit power.
Did you mean "I tried the pedal with a battery and then with an adapter"...?
Here's the schematic:
http://www.generalguitargadgets.com/boss/BossCE-2B.gif
Does the battery get hot to the touch when there is a signal cable plugged into the pedal's input jack?
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Edited by - stahlhart on 07/15/2007 04:52:20 |
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/15/2007 : 04:53:11
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I figured that I wouldn't get a sound if there was no circuit power. I added that in because I thought that would help in figuring out what the problem is. I did mean battery no LED. Thanks for the help and the schematic. Let me know if you have anymore ideas.
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/15/2007 : 04:54:16
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| it doesn't get hot to the touch either. |
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stahlhart
Platinum Member
1318 Posts |
Posted - 07/15/2007 : 05:03:46
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Do you have a volt-ohmmeter? If so, what do you measure across D7?
If that was the same battery that you tried the first time -- have you measured its voltage since, or tried it in another pedal? If the CE-2B has a direct short, it will have its capacity drained pretty quickly.
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Edited by - stahlhart on 07/15/2007 05:04:33 |
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stahlhart
Platinum Member
1318 Posts |
Posted - 07/15/2007 : 05:09:44
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If you've got no check LED, first determination needs to be if the circuit has power -- we've seen the 9.1v Zener diode (D7 in your case) short-circuit quite often -- I have three DD-2s that were all purchased dead, and all three had bad Zeners, and we just recently ran into one in a DD-5 (look for the thread on the first page here).
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/15/2007 : 05:25:15
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| I don't have a voltemeter here but I have one at work. I'll pick it up tomorrow and check it out. I read that other thread earlier and I was hoping it was something simple like that. Thanks again. |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 07/15/2007 : 15:51:00
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Hi Stahlhart, JuiceeciuJ (juice Juice Backwards) & Guys
Don't forget to also tell us, if it's an ACA 12V pedal or the PSA 9V pedal.
Look at the little sticker near the DC input socket, it is written on that sticker, if it's still there & legible.
Will-can you take a few pics of the inside, to help us, help you.
maybe there is a wire broken off inside, it happens sometimes.
But more likely the diode.
You failed to tell us, what happened to it in the past (2)-few months, since it was working?
Did someone borrow it/ Did you accidentally plug in a wrong polarity plug pack?
Did you swap plug packs, ACA for a PSA, or a generic one?
Did you cat-dog pee on it... (sorry, I had a pedal recently, with this fault) 
Did you do a gig in the rain with it?
I guess you get the general picture....
Please tell us more about, why you think it stopped working.
Regards Dr. Bob
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/15/2007 : 16:24:45
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Ok,
-The sticker beside the dc input socket says "use boss aca adapter only"
-I've had the pedal on a Boss BCB-60 pedal board before and it's worked fine.
-About 2 months ago I tested it, it worked fine. I put it away in a box and didn't touch it until the other day when I plugged it into the pedal board and it didn't work.
-Pictures will be on the way. I've opened it up and can't seem to find and broken wires.
Thanks for the help, I'll try and goet those pictures up in a couple hours.
-Joe |
Edited by - JuiceeciuJ on 07/15/2007 16:25:36 |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 07/15/2007 : 17:11:18
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quote:
Originally posted by JuiceeciuJ
Ok,
-The sticker beside the dc input socket says "use boss aca adapter only"
-I've had the pedal on a Boss BCB-60 pedal board before and it's worked fine.
-About 2 months ago I tested it, it worked fine. I put it away in a box and didn't touch it until the other day when I plugged it into the pedal board and it didn't work.
-Pictures will be on the way. I've opened it up and can't seem to find and broken wires.
Thanks for the help, I'll try and get those pictures up in a couple hours.
-Joe
Hi JuiceeciuJ
Your pedal may not be faulty.
Read this link about the ACA, and powering ACA pedals from PSA adapters.
http://www.bossarea.com/other/aca.asp
Did you try to connect it back into the board EXACTLY like you had it 2 months ago.?
I'm guessing that it will work ok.
As for the battery? maybe it was a flat battery you were using.
Here is an extract.
Powering ACA pedals with a PSA power supply
Powering the older pedals designed for 12V DC input with either a newer ACA or PSA adapter will not work very well. The voltage drop over the resistor and diode will prevent the pedal from getting enough power and its LED will usually only glow faintly. The solution is to use a daisy chain and plug in another pedal designed for the newer ACA or PSA adapter. The lead between the two pedals will short the resistor diode pair and the pedal will receive full power.
Good Luck 
Regards Dr. Bob |
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/15/2007 : 17:43:11
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Dr. Bob!!!
It works. I plugged in a tube scremer and daisy chained it with the chorus and...it worked!!!! Now this wasn't my exact set up but it's all I had lying around. Now the weird thing is I took the 9V battery and used it in the tube screamer and it worked fine. I then put it in the CE-2B and.....nothing. So I guess I'm half way there. Thanks again and let me know if you have any ideas about the 9V battery.
joe |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 07/16/2007 : 10:54:05
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quote:
Originally posted by JuiceeciuJ
Dr. Bob!!!
It works. I plugged in a tube screamer and daisy chained it with the chorus and...it worked!!!! Now this wasn't my exact set up but it's all I had lying around. Now the weird thing is I took the 9V battery and used it in the tube screamer and it worked fine. I then put it in the CE-2B and.....nothing. So I guess I'm half way there. Thanks again and let me know if you have any ideas about the 9V battery.
joe
Hi Joe
Did you understand why it works, from reading the above extract?
The Tubescreamer like a lot of other dirt pedals, uses very little current.
In fact, I can make my vintage DS-1, work with a battery SO FLAT,
you cant' feel it on your tongue, when you do the:
Calibrated Tongue Test.
Now a chorus like the CE-2 and B use a lot more current, and the battery you are using, may be too flat to make the Chorus work.
DS-1 = 4mA current draw.
CE-2B = 10mA current draw.
Try another known good ALKALINE battery. 
Maybe there is a broken, or loose wire on the battery clip.
Maybe the little switch inside the DC input socket, isn't switching the circuit back to battery, when you pull out the DC plug.
Regards Dr. Bob 
PS - Does the CE-2B sound good with normal 6 string guitar, as you have probably read, I really like  collecting CE-2 chorus's.
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Edited by - Dr. Bob on 07/16/2007 10:55:46 |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 07/18/2007 : 00:05:07
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hi joe.....stahlhart and the doc are both good guys when it comes to problem solving these things..if i can offer my own humble opinion....i had a similar problem back in the day when i used to use batteries...it was the 'rose' shaped part on the battery clip had become a little loose over time and wasn't making a proper connection to the battery...but a little tighten with my pliers and all was good again....or if a battery leaks it can leave a little corrision on the terminals and might need a little cleaning to make a contact..... or as the guys pointed out an aca pedal will work with a psa adapter if it's daisy chained with another psa powered pedal....
are you using the ce2b with guitar..? how does it sound (if you are) compared to other 'guitar' chorus pedals..... |
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JuiceeciuJ
Copper Member
Canada
7 Posts |
Posted - 07/18/2007 : 00:53:04
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Hey guys thanks for the replies I just tried the pedal with a brand new battery (which snapped in pretty tight to the connector) and it still didn't work. I've checked the wires and all seems to be good, I guess I'll just have to use it with an adapter, no biggie.
I have been using the CE-2B for guitar eventhough I purchased it initially for bass and I think it sounds great. I find it a little more subtle then the regular chorus which I like. It sounds really good on bass though. Nice and thick.
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Topic |
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Broken CE-2B Please Help!
