ProVisual AC-930P Installation Manual - Common Question
Urgent Maintenance:
1. When the exterior reader can not read the cards, please
test the voltage of DATA0—GND and DATA1---GND. If the
voltage is less than 3.5V, please weld TVS2, TVS3.
2. When door magnet input fails, please test the voltage
between Menci and GND. If the voltage is less than 3.5V,
please weld TVS5.
3. When exit button input fails, please test the voltage between
SW and GND. If the voltage is less than 3.5V, please weld
TVS4.
P C B
Common Question
1. If there is no sound when card is presented to the reading area, the reading function maybe damaged.
2. If there is no sound when press the keys, the keypad maybe damaged.
3. When add card, if the device exits program mode automatically, the memory maybe damaged.
4. If valid card is read and OK light is on, while relay does not act, the lock control may malfunction.
5. If relay keeps on in open state, buzzer keeps buzzing, and SW-GND is short or lower than
, the
keys maybe damaged.
6. MenCi-GND is short or lower than 3.5V, the door magnet input maybe damaged.
7. Voltage of DATA0, DATA1 and GND should be higher than 3.5V, otherwise exterior reader can not work
properly.
8. When RS485 is applied, voltage between 485+ and 485- is around 5 voltages.
9. The LCD have no information to be displayed, after turn on the power for AC-930P. The starting
program maybe damaged.
The life of products is related to application environment and application method. Please carefully follow
the product manual and installation manual.
In case of any problem, please contact with our technical support instead of self- repairment.
Please keep the original state of the products when sending back for repair. Please notify us if you
have any special demand, and we will feedback within 48 hours.
3.5V
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