Operational Problems
3-30 Troubleshooting
Battery and Charging Circuits
The following tables cover problems that may arise with the Battery or the
unit’s battery charging circuits.
NOTE Before replacing any parts, check to see if the cables and flex circuits are
properly connected. See "Servicing Notes" on page 4-1.
Table 3-15 Operational Problems - Battery, Charging Circuits
Symptom Possible Causes Suggested solution
Low battery life (depletes quickly in
use).
Very frequent use - not charging
long enough between uses.
Charge fully between uses. Use
spare batteries and adapters as
needed to allow complete charging.
Battery failure. Run Battery Capacity Test (see
"Battery Capacity Test" on page 2-
47). If battery fails test, replace bat-
tery.
Power Supply failure. Replace Power Supply.
Failure on Control PCA, Power
PCA, or Battery PCA.
Replace 1) Control PCA 2) Power
PCA 3) Battery PCA.
Fails Battery Capacity Test Battery old, worn out, or failed. Replace battery.
Failure on Control PCA. Replace Control PCA.
"Unsupported Battery" message
appears on the screen
• Not an M3516A battery.
• Battery damage.
• Failure on battery PCA.
• Use an M3516A battery only.
• Replace the battery.
• Replace the Battery PCA.
Table 3-16 Power Indicator Matrix
INDICATORS SYSTEM STATE MEANING
AC POWER
BATT
CHARGING
Connected
to AC
Mains?
Battery in
Place?
Unit Power
ON?
G = GREEN
OR = ORANGE/AMBER
Y = YES N = NO --- = don’t care
OFF OFF N --- --- Normal
G OFF Y N --- Normal
G OR Y Y --- Battery is charging.
G G Y Y --- Battery at least 90% charged.
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