Praktika T-05(K) speedgate
20
Table 8. Troubleshooting for the card collector
Fault
Possible
causes
Remedy
PS unit is
connected, but the
card collector does
not work
Check the connection cable;
Check the fuse on board of the card
collector;
Card collector
provides 4 audio
signals at
intervals of 3 sec,
red cross on the
LED panel flashes
every 4 seconds
(audio signals last
for 3 minutes;
then red cross on
the LED display
continues single
blinks 1 time in 2
sec.)
Storage
device is full
Act in accordance with article 7.3;
Overflow
sensor
(
optocoupler
)
is broken (Fig.
6)
Check the condition of the cables and
connectors;
If D9 LED on the board of the card collector
does not turn red – the fault is caused by the
malfunction of motherboard;
If D9 LED on the board of the card collector
turns red:
set the jumper on Full_ph connector - if LED
D9 then goes off, the alarm stops, the Red
Cross does not blink – the fault is caused by
defective optocoupler;
Check the voltage at the connectors
(without removing the connectors, while
holding down BUT1 button):
1. Full_ph (Vtyp = 0,15 B; Vmax = 2,5
V):
- If V
≤
2,5 In - all right;
- If V> 2,5 V – disaligment or LED
and phototransistor fault;
- If V = 5 V - the phototransistor or
cable are defective;
2. IR LED3 (Vtyp = 1,2 B):
- If V = 5 V - LED or cable defective;
