Satyam Posted February 3, 2022 Share Posted February 3, 2022 (edited) I have bought 870in casio keyboard. After plugging it with adapter and switching it on. I feel low voltage electric shock bare footed, from the USB and MIDI port(metal parts) I tested USB and MIDI port with electric tester , bulb of the tester lights. Is it normal as casio 870in comes with 2 pin adapter. Please anyone facing the same issue? Edited February 9, 2022 by Satyam more specificity Quote Link to comment Share on other sites More sharing options...
Mike Martin Posted February 4, 2022 Share Posted February 4, 2022 Aside from static electricity, I'm not sure how that could occur. The power supply for your CT-X870IN is 9 volts which is pretty harmless. If you're concerned contact your Casio dealer or local distributor. Quote Link to comment Share on other sites More sharing options...
IanB Posted February 4, 2022 Share Posted February 4, 2022 This might be due to a wiring issue with your home wiring or an extension cable. Considering it sounds like a limited current, it's probably some form of leakage current which can occur if something which should be Earthed isn't. What country are you in with what voltage and plugs (2 pin, 3 pin, 2 pin + Earth, etc)? Quote Link to comment Share on other sites More sharing options...
Satyam Posted February 9, 2022 Author Share Posted February 9, 2022 On 2/4/2022 at 6:40 AM, Mike Martin said: Aside from static electricity, I'm not sure how that could occur. The power supply for your CT-X870IN is 9 volts which is pretty harmless. If you're concerned contact your Casio dealer or local distributor. yea I know 9 volts are harmless to a human body, just wanted to know is it normal for all the keyboards having 2pin adapter as 870in has 2 pin adapter. Quote Link to comment Share on other sites More sharing options...
Satyam Posted February 9, 2022 Author Share Posted February 9, 2022 On 2/4/2022 at 8:10 AM, IanB said: This might be due to a wiring issue with your home wiring or an extension cable. Considering it sounds like a limited current, it's probably some form of leakage current which can occur if something which should be Earthed isn't. What country are you in with what voltage and plugs (2 pin, 3 pin, 2 pin + Earth, etc)? I am from India, I have checked the wiring, its absolutely perfect checked with new adapter too. so Just wanted to know, is it normal for all the keyboards having 2pin adapter as 870in has 2 pin adapter? Quote Link to comment Share on other sites More sharing options...
mike71 Posted February 9, 2022 Share Posted February 9, 2022 51 minutes ago, Satyam said: yea I know 9 volts are harmless to a human body, just wanted to know is it normal for all the keyboards having 2pin adapter as 870in has 2 pin adapter. I have an XW-G1 that has 9,6 V input, and the wall adapter doesn't have a ground pin. The small leakage current maybe it's due to the parasitic capacicance between primary and secondary windings of the switching transformer. Quote Link to comment Share on other sites More sharing options...
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