ALcom AT-5928 User Manual - Page 10

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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
In on-hook state, press CAL key
1.
Press (1 , 0 , +, 2 , 6 ),÷, 2 , #/= keys
2.
After calculated, press SET key to quit.
3.
Eg.2 0.5× 0.6-1
In on-hook state, press CAL key
1.
Press0, */. , 5 , x , 0 , */. , 6 , - , 1 , #/= keys
2.
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)
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