Question about Yamaha Dtxpress Iv Special Electronic Drum Set
The "battery" MAY be a soldered in type.
Here is your service manual:
Scroll down on the web page to "Get Manual" and download the manual.
The battery is on page 153 in the manual at grid N-10... you are NOT going to like this... it is in a Dallas Semiconductor real time clock chip... You have to replace the chip. It is IC709 which is a DS12887 chip.
The physical location can be found on page 58 about half way down the "A" sectioning line on the right side of the page. It is a 24 pin chip... It MAY be in a socket, or maybe not... PRAY !
Wow... $11.12 each from digikey.com
This info took me about 1 hour to dig out...searching for a battery was futile until I found the battery was related to the real time clock. If this isi soldered in, you need to have proper tools as the board is likely multilayer and takes care in solder removal... especially the new ROHS hi temp solders. You should take this to a board repair house if it is not socketed.
Posted on Apr 05, 2011
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Posted on Jan 02, 2017
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