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Post by keith9151 on Nov 2, 2018 12:22:11 GMT
Hi Charlie Thanks for the update. Have a good day Keith
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Post by keith9151 on Jan 11, 2019 19:04:32 GMT
Hi Charlie. Are we getting any closer to getting things sorted. The pedal is now going wrong on a regular basis for some reason no matter which guitar cable l use. All the best Keith
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Post by Charlie Hall on Jan 11, 2019 19:35:59 GMT
Hi Keith, I spoke with Stephen again just the other day. He is trying yet again to get a response from John's wife. I am hoping he will be able to find out how John compiled the code by examining his computer remotely. I still think static is the cause of the problem with your unit, remembering how easily I was able to create a static charge from your carpet by simply rubbing it with my hands and then touching any metal part of your guitar which caused the black squares on your display every single time. Perhaps the strength of static build up changes with the weather. I am sorry it is taking so long to get this sorted out. Regards, Charlie
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Post by sheendigs on Jan 11, 2019 20:13:23 GMT
Hi Keith, Perhaps an ESD mat will solve the problem temporarily (Electronic Static Discharge)..cut one the size of the unit and put it underneath. What would be Charlie's idea on that? www.esdmat.com/Sheendigs
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Post by Charlie Hall on Jan 11, 2019 20:34:47 GMT
Hi Keith, Perhaps an ESD mat will solve the problem temporarily (Electronic Static Discharge)..cut one the size of the unit and put it underneath. What would be Charlie's idea on that? www.esdmat.com/Sheendigs Good try but I believe the static charge is coming via the guitar so I doubt the mat would help much if at all. Regards, Charlie
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Post by keith9151 on Jan 11, 2019 21:32:44 GMT
Hi Charlie. Thanks for that . Stephen has been trying to contact Johns wife since last September but doesn’t seem to be getting anywhere with his emails. It must be frustrating for him .Has anyone else with the problem managed to find any solution. Keith
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Post by Charlie Hall on Jan 11, 2019 22:35:15 GMT
Hi Keith, I haven't heard from anyone who has the problem finding a solution. I don't understand why the emails are not being replied to. It is as though they aren't being received. Regards, Charlie
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Post by keith9151 on Jan 12, 2019 9:41:52 GMT
Hi Charlie Maybe she just doesn’t want to help or maybe she has changed her email address and that is why she is not getting the emails. Keith
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Post by Charlie Hall on Jan 12, 2019 12:26:50 GMT
Hi Keith, I don't know. I sent an email Christmas Greeting and received a similar message within a day. Some time before that she agreed the problem does need sorting out. Regards, Charlie
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Post by Charlie Hall on Jan 18, 2019 19:39:30 GMT
The problem with emails is now more or less sorted out and progress is being made to arrange for Stephen to remotely view John's computer. I hope to be present with Stephen when this happens. Regards, Charlie
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bobo
Member
Posts: 5
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Post by bobo on Feb 10, 2019 0:01:23 GMT
Hi Charlie. I have bought a "H&C echo " 3 years ago. I use it on stage and i'm really satisfied with this. But, i bought recently a wireless system : a NUX B-2 and i see a loss of bass-tone using this only on my H&C echo. I made several trials, switching between a cable and my receiver, and i have not noticed this change directly on my amplifier or on any other pedal. Is it due to an impedance mismatch with your pedal , or a too low value of its serial input capacitor ? How do you thing i can fix this ? I am an electronician, but i hesitate to modify your box because of the fragile cms technology . An external serial resistor (more than 220 k ) improves the sound but decreases the level , of course. Unfortunately, i don't know the output impedance of my receiver. What do you thing about this ? Best regards, André
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Post by Charlie Hall on Feb 10, 2019 2:30:45 GMT
Hi André, The input impedance of the H & C is 470K, the same as a Meazzi echo unit, and there is no series capacitor in the input circuit, and only a 33K resistor in series with the + input of the first stage op-amp. There is a bass cut of about 100Hz at 6dB per octave in a later stage. I am guessing the output capacitor of the radio receiver might be too small or the output resistor to earth is too small. The designer may have assumed it would only be connected to amplifiers with a 1 meg input impedance. Some effects pedals also have an input impedance of 470K, and some have only 220K. It seems as though the designer might not have considered that. Regards, Charlie
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bobo
Member
Posts: 5
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Post by bobo on Feb 10, 2019 13:51:11 GMT
hi Charlie, thanks for your fast answer.I thing you're right so there is no solution because i cannot modify my receiver because of the warranty loss. I'll just change the settings of my amplifier, but i can't do anything on my 1964 AC 15 amplifier : there is no tone control, except a "tone cut". :-( Thanks to this post, the users of your echo will know that it is necessary to be attentive to the impedances before buying a wireless system :-) Thank you, best regards, André
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Post by Charlie Hall on Feb 10, 2019 16:33:11 GMT
Hi André, Do not give up so easily! Just build a simple buffer amp with a 1 meg or higher input impedance! This should be a better solution than trying to adjust your amp settings. As for wireless systems, yes, people will know to be wary of the wireless system that you have. Regards, Charlie
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streetboy
Member
As long as you know what's upside, down, inside and out you're on the right path
Posts: 153
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Post by streetboy on Feb 10, 2019 19:04:34 GMT
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Post by gibbo3272 on Feb 22, 2019 1:35:58 GMT
Hello Charlie, I hope this is the right area to post. I have a problem with my H&C unit, for some reason the sound has suddenly ceased from unit although the unit appears to be working looking at the display and the up and down buttons. My setup is as follows: Guitar - H&C echo - MXR 10 Band EQ - Joyo ACTone Pedal - Behringer Eurolive B207 PA/Monitor Speaker System. Until now it has been working perfectly but suddenly stopped working. I swapped the unit with a Zoom G3 with the same cables and that works fine, I have swapped different cables with the same result. My next thought was to maybe purchase a new power supply. Any help or suggestions would be appreciated, Thanks Geoff
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Post by Charlie Hall on Feb 22, 2019 11:42:46 GMT
Hi Geoff, Sorry to hear your H & C is not working. Please contact Derek or Lin via the support email for advice on getting it sorted. supportAThallandcollins.com (replacing AT with @). Regards, Charlie
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Post by gibbo3272 on Feb 23, 2019 3:19:45 GMT
Thanks Charlie for prompt reply will contact Derek or Lin at support. Geoff
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Post by gibbo3272 on Mar 14, 2019 5:46:15 GMT
Hello Charlie, followed your instructions and contacted Derek, have now received repaired unit back. Excellent service and communication from Derek/Lin, in all approx 14 days - not bad from Perth, WA and back. Thanks again. Geoff
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Post by Charlie Hall on Mar 14, 2019 14:41:10 GMT
Hi Geoff, Glad to hear of your update and that you are happy. Regards, Charlie
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bobo
Member
Posts: 5
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Post by bobo on Apr 20, 2019 1:34:08 GMT
Hi all, I return after a short period of absence devoted to other work. Charlie, i don't give up so easily, i only don't have much time for me :-) Thanks to Streetboy,the proposed assembly is very efficient "as it" with a J201 . Now, i retreived "that sound" ! I hope this experience will be useful to other users.
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Post by Charlie Hall on Apr 20, 2019 11:42:01 GMT
Hi bobo, If you are talking about the output transistor then please be aware it could fail again. If it does, please contact support@hallandcollins.com for advice on a permanent fix. Regards, Charlie
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