Radio shack MD-1160 won’t turn on

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Casio Electronic Keyboard

Repair and disassembly guides for Casio electronic keyboards.

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SuzanGeorges @suzang

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发帖于: 2022年7月18日

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Radio shack MD-1160 won’t turn on

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?

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Can you take a picture of the circuit board(s) and upload it here? 在已经存在的问题里加入图片

由 Andrew S 完成的 2022年7月18日

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

由 jayeff 完成的 2022年7月19日

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.

由 SuzanGeorges 完成的 2022年7月27日

@suzang

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由 HelloMacOS 完成的 2022年7月28日

@suzang

Have you tried a different, known working compatible 9V DC power adapter to see if that worked, you didn't say?

由 jayeff 完成的 2022年7月28日

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Can you take a picture of the circuit board(s) and upload it here? 在已经存在的问题里加入图片 — Andrew S
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 — jayeff
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. — SuzanGeorges
@suzang

Here’s how to add photos!

在已经存在的问题里加入图片 — HelloMacOS
@suzang

Have you tried a different, known working compatible 9V DC power adapter to see if that worked, you didn't say? — jayeff

HelloMacOS @hellomacos 声誉积分: 25.9千 205 20 38 · Answer 1 · 2022-07-19T02:18:00-07:00

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HelloMacOS @hellomacos

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发帖于: 2022年7月19日

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Hi

ideally we need some photos

you can add some photos by following this great guide

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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:-)

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