GE MDS P-60 Reference Manual page 54

54
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Battery Charging Check—AC-Powered Units Only
For proper charging of the battery, the power supply must be set at the correct
output voltage. As standard procedure, the factory checks and adjusts the
charging voltage before shipment. To check for proper charger output, use the
following procedure:
1. Disconnect the battery by removing the plug from J4 on the
Interface/Utility Board.
2. Connect a 1.5 k resistor (1/4 watt or larger) between Pins 2 & 3 of J4.
These are the two pins closest to the squared end of the jack's shell. The
resistor is used to simulated the load of a discharged battery.
3. Measure the voltage present at the battery fuse, F4, referenced to power
supply negative. This voltage should be 14.10 Vdc; if not, the power
supply voltage should be adjusted to produce 14.10 Vdc. The power
supply output voltage can be adjusted with voltage adjustment pot R11
within the power supply unit (accessible through the hole on the side of its
chassis plate).
4. Remove the 1.5 k resistor from J4 and re-install the mating battery con-
nector into J4.
MDS P-60/P-60 HL Reference Manual MDS 05-2818A01, Rev. C