9MaintenanceThe DAP Audio Beltpack for COM-51/52 requires almost no maintenance. However, you should keep theunit clean. Disconnect the mains power supply, and then wipe the cover with a damp cloth. Do notimmerse in liquid. Do not use alcohol or solvents.Keep connections clean. Disconnect electric power, and then wipe the audio connections with a dampcloth. Make sure connections are thoroughly dry before linking equipment or supplying electric power.TroubleshootingDAP Audio Beltpack for COM-51/52This troubleshooting guide is meant to help solve simple problems. If a problem occurs, carry out the stepsbelow in sequence until a solution is found. Once the unit operates properly, do not carry out followingsteps.1. If the device does not operate properly, set the switch on the beltpack in OFF position.2. Check the batteries, etc.3. If all of the above appears to be O.K., Set the switch in ON position.4. If you are unable to determine the cause of the problem, do not open the beltpack, as this maydamage the unit and the warranty will become void.5. Return the beltpack to your DAP Audio dealer.