Midmark® Dental Lights Control PC Board Access Procedures
|
Mounted To |
Ceiling, Chair, Track, Universal and Wall/Cabinet |
| Serial Number | NW, RE and V Serial Number Prefixes |
Refer to: Midmark Dental Light User Guide for complete instructions on operating the light. Failure to do so could result in personal injury.
Perform an operational test on the dental light after repair is completed to confirm repair was properly made and that all malfunctions were repaired.
Removal
1.Turn OFF power to unit.
On some units, end cap removal differs slightly. Also, on some units, both end caps may need removed.
2.Remove arm end cap from light arm channel.
3.Slide light arm cover backward approximately 12 in. (30.5 cm) to gain access to light control board.
4.Tag the two 20 VAC Supply and two Light wires; then loosen four terminal screws and disconnect the wires from terminal.
5.Cut the cable tie securing the seven wire harness to the light control board.
6.On earlier units, tag the seven wires; then unlock the locking levers, by rotating them upward, and disconnect wires from terminal. On later units, unplug the connector from the terminal on the PC board.
7.Remove the four screws and light control board from light arm channel.
Installation
When connecting wires to the terminals on the PC board, use care to ensure that all strands of wire are captured inside its terminal slot before securing. Loose strands of wire could cause a short to the light control board causing damage or operational problems
1.Insert the seven wires in the appropriate slot of the terminal and secure in place by rotating the locking levers downward into locked position or tightening the screws.
2.Install the light control board on the light arm channel and secure with four screws.
3.Secure the seven wire harness to the corner of the light control board with a cable tie.
4.Connect the two 20 VAC Supply and two Light wires to the appropriate slots of the terminal and secure in place by tightening the terminal screws.
5.Slide the light arm cover back onto the light arm channel.
6.Install the arm end cap on the light arm channel and secure with the screw.
