Question about Casio Music
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Posted on Jan 02, 2017
I would inspect the unit for corrosion on battery terminals AND the power connector. The connector has a switch when a cord is plugged in, and if this switch doesn't work (they get bent) the unit will not work on batteries.
Best source of power adapters is often your local thrift store.
MATCH the voltage and whether it is AC or DC required AND the polarity if the pin is + or -.
Get one with enough current.
Posted on Apr 29, 2010
Testimonial: "Wow thanks for the quick and detailed answer. I will give this stuff a try and let you know how it goes. Thanks!"
If you are careful you can. Replace with exact same jack. Your jack has a switch contact that connects the batteries when NOT using the power adapter. You need to find one with exact same pin spacing and layout.
Search for one at Digikey.com an Mouser.com
Here is link to the power jacks, supposedly with the switch contact... compare the photos and spec sheet to match your connector.
Posted on Nov 24, 2010
This service manual should be close to your unit... it is a CRK671:
Scroll down to "get manual" and click on it to download. IGNORE other download links.
Power input schematic is on page 10, lower right corner. They appear to "or" in the batteries with the adapter if adapter is used. Look for the diodes and also the bifilar power inout filter.
Posted on Jul 29, 2011
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