ALcom AT-5928, User Manual

Page: 10 / 11

CALCULATOR FUNCTION
In on-hook state, press CAL key, LCD displays 0- , the unit is in calculator state.
The unit is available for operation of “ +.-.×.÷ ”, in the calculator state , #/= key is used as “ = ”and
the
*/.
key is used as “ . ”, OUT/x and FLASH/÷ are used as x and ÷ respectively . UP/+ or
DOWN/- key is used as sign of positive/negative.
Eg.1(10+26) ÷2
1.
In on-hook state, press CAL key
2.
Press ( 1 , 0 , +, 2 , 6 ), ÷, 2 , #/= keys
3.
After calculated, press SET key to quit.
Eg.2 0.5× 0.6-1
1.
In on-hook state, press CAL key
2.
Press 0,
*/.
, 5 , x , 0 ,
*/.
, 6 , - , 1 , #/= keys
3. After calculated, press SET key to quit.
NOTES
Please unplug telephone line and power (if any) when installing / replacing batteries.
TROUBLESHOOTING
? No voice
+ Check if the handset is on the phone or if the line has terminated.
? Receive only
+ Check if P/T mode is properly set.
Check if the unit is locked (use the key to unlock it)
? Rusty batteries or leakage
+ Remove the rust or wipe away the leakage.
? Noise
+ Check if the connector is wet or rusty (Change the connector)
? Ring once then disconnect when receiving a call. Dialing function is still available
+ Check if connector is in a moist environment.
Check if too many extensions are used together or the quality of extension is not good
enough
? LCD become dim
+ Check if LCD contrast is properly set or if the batteries are weak. (Adjust LCD contrast, if
the LCD is still dim, replace the batteries.)
? No ring
+ Check if the RING tone is in the OFF state, reset it.
? Most of the functions failed
+ Check if the batteries are strong enough. (Change the batteries)
If batteries are ok (Remove the battery, unplug the lines and reinstall after 10 minutes)
10