5.2 Checking the Battery Packs
1. Remove each battery pack and measure the voltage at the battery
terminals between (+) and (-).
PICTURE 4
+------------------------------------------------------------------------+
¦ Terminal ¦ Voltage (V dc) ¦
+------------------------------------+-----------------------------------¦
¦ (+) ¦ +12 to +18 ¦
+------------------------------------+-----------------------------------¦
¦ ( T ) ¦ Thermal Detection ¦
+------------------------------------+-----------------------------------¦
¦ ( - ) ¦ Ground ¦
+------------------------------------------------------------------------+
If the voltage is less than +12 V dc, the battery pack is
discharged or defective.
If the voltage is more than +12 V dc, go to the next step.
2. Using a low-power ohm meter, measure the resistance at the battery
terminals between
(T) and (-). The resistance must be
500 ohms to 20 kilohms.
If the resistance is out of range, replace the battery pack.
IBM PS/2 Model CL57 SX HMS
Checking the Battery Packs
¦ Copyright IBM Corp. 1992
5.2 - 1
