TROUBLESHOOTING/ Monitor Unit Maintenance Information Display ON/OFF Example: Maintenance Information Display OFF ON ON: When time comes to change, a information message is displayed on the screen. OFF: No information message is displayed. 1. Select maintenance information display by using keys 1 and 2. 2. Push the confirm key and select ON. 3. In order to complete setting, push key 6. Then, the primary screen appears. Key 1 Confirm Key Key 2 Key 6 T1V5-05-01-052 Interval ON/OFF Setup Screen Menu Key T1V1-05-01-123 Primary Screen T5-2-57