The Motorola Xir M3688 Service Manual is available in various formats, including:

If you are a serious radio user or a two-way radio shop, download (or purchase) the official manual today. Keep it on your tablet in the workshop. And remember: always follow the static discharge procedures detailed on page 1-2 of the manual—the M3688’s front-end RF amplifier is notoriously sensitive to ESD.

service manual is a technical document designed for service technicians to maintain, troubleshoot, and repair the MOTOTRBO™ mobile radio. The manual typically covers Level 1 and 2 maintenance, which includes procedures ranging from basic testing to board-level replacement.