My keyboard has no power when plugged in to the dc plug. I have taken the unit apart and have found nothing unusual on the circuit boards other then blackened grease where the on off switch runs. Any suggestions?
crwdns2934109:0crwdne2934109:0
crwdns2934065:0crwdne2934065:0: 26.7crwdns2936485:0crwdne2936485:0
207
25
39
Hi
ideally we need some photos
you can add some photos by following this great guide
Adding images to an existing question
That blackened grease could be where the switch has worn out and is no longer performing like a switch (turning in and off)
also I would check both sides of the board and check in power in side if the board, also check the fuse in the plug, but for now with no photos that's all I can really do so when we get some photos we can look into things a bit better;-)
hopefully this helps
Thanks:-)
crwdns2934105:0crwdne2934105:0
crwdns2934065:0crwdne2934065:0: 500.1crwdns2936485:0crwdne2936485:0
11
388
1.5crwdns2936485:0crwdne2936485:0
Do you have a DMM (digtial multimeter) so that you can check if there is 9V DC at the plug of the existing adapter?
It may be the adapter/adapter cord that is faulty and not the keyboard
crwdns2934105:0crwdne2934105:0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 5
crwdns2936753:030crwdne2936753:0 19
crwdns2942667:0crwdne2942667:0 556
crwdns2944067:06crwdne2944067:0
Can you take a picture of the circuit board(s) and upload it here? Adding images to an existing question
crwdns2934271:0crwdnd2934271:0 Andrew S crwdne2934271:0
Hi @suzang,
Have you checked that the AC/DC adapter power supply that plugs into the keyboard is working OK i.e. that there is 9V DC on the plug at the end of the cable?
If you can't test if the 9V DC output adapter is working, then try inserting 6 x "D" size dry cell batteries ( 6 x 1.5V D cell batteries = 9V DC) in the keyboard's battery compartment and check if it turns on.
Make sure that the DC plug adapter is unplugged from the keyboard if you try this as plugging in the adapter disconnects the battery's power supply to the keyboard
crwdns2934271:0crwdnd2934271:0 jayeff crwdne2934271:0
I have finally put batteries in and it works!🤣. So I guess now I will need to take pics of the two Circuit boards so y’all can see if I’m missing something. I will also be purchasing a new 9v plug for the keyboard.
crwdns2934271:0crwdnd2934271:0 SuzanGeorges crwdne2934271:0
@suzang
Here’s how to add photos!
Adding images to an existing question
crwdns2934271:0crwdnd2934271:0 HelloMacOS crwdne2934271:0
@suzang
Have you tried a different, known working compatible 9V DC power adapter to see if that worked, you didn't say?
crwdns2934271:0crwdnd2934271:0 jayeff crwdne2934271:0
crwdns2934273:01crwdne2934273:0