I've fully disassembled the TSU9600 a number of times. See the 2nd post of the thread found here where I've posted a download link for the TSU9600 service manual. Also, if you feel more comfortable having someone else replace the battery for you and live in the United States I'd recommend contacting www.servicewidetech.com and have them do it for you. Personally I'm not willing to perform the battery replacement unless it's my TSU9600. Would hate to screw up someones remote by accident.