
8. TROUBLESHOOTING
B–62835EN/01
324
<Location of memory module> Power Mate–F
(1)
Bace PCB
A02B–0166–B501
A02B–0166–B531
256 kilobytes are installed on the
base printed circuit board.
(2) Low voltage of memory back up battery.
A battery alarm occurs if a voltage rated at 3.0 V drops to 2.5 V typical
(2.3 to 2.7 V).
When the memory back up battery voltage is lowered, BAT is
displayed at lower part of the screen.
When battery alarm is lit, replace with new lithium batteries as soon
as possible.
Refer to 2.6 battery replacing item and change the batteries.
(3) Power supply printed board is faulty
When alarm turns off by an operation of clearing all the memory,
power supply printed board may also be faulty.