Re: remote control device. If new batteries don't work, it's possible that the sensor under the external buttons decided to give up the ghost. You might find a replacement on Ebay. Also, when you install new batteries, be sure to lightly bend out the contact spring. Over the years, that spring can compress and lose contact with the battery terminals.
repair or replace luxman preamp
1991 system, luxman tp 117 preamp, luxman dc 117 multi disc cd player, adcom amp, powering kef bookshelf speakers in small family room, and 3 rooms with luxman inwall speakers. Preamp no longer senses remote, limiting source selections. Repair or replace? Replacement rec? Thanks.