DTD-5230, DTD-5231, and DTD-5233 Installation and Operation Manual
25
:
Voltage Selection
The transformer for the power supply is provided with a dual primary
winding that enables the unit to operate at either 100-120 VAC or
200-240 VAC, depending on the jumper connection.
Note
Voltage selection is normally done during the manufacturing
process, based on indicated customer requirements.
To set the voltage, follow this procedure:
1. Remove AC power from the clock, and then remove the cover.
2. Locate the dual primary winding voltage selector.
See
Figure A-1
.
Figure A-1.
Location of Dual Primary Winding
3. Solder both voltage selectors horizontally on the board for 120
VAC or vertically for 240 VAC. See exploded diagram in
Figure A-1
.
4. Replace the top panel and all screws.
5. Reapply AC power to the clock, and then confirm start-up.
110
110
22
0
Winding Voltage Selector Settings
Solder both voltage selectors horizontally on the board for 120
VAC (as shown). Remove and solder both voltage selectors
vertically on the board for 240 VAC.
110
22
0
110
