GST-RP16 Conventional Repeater Panel
Installation and Operation Manual
Page 4
Table1
Number
Problem
Reasons
Repair Methods
1
The device
be
started up.
a. Jumper X1 is not at ON
end.
b. No 5V
a. Put X1 to ON .
b. Check 7805 and its
periphery circuit
2
No self-test
or display
wrongly
after
power-on
a. Power supply is
abnormal.
b. Connection with display
panel is loose.
c. LED is damaged.
d. Transistor oscillator or
main CPU damaged
a. Check 24V power supply
b. Check wiring
c. Replace the LED.
d. Check transistor oscillator or
replace main CPU
3
No dealing
with alarm
signals
a. Connection loose in input
part.
b. Insulated optocoupler
does not work.
c. Output circuit is
damaged.
d. Transistor oscillator or
main CPU damaged.
a. Connect it in a right way.
b. Replace the optocoupler.
c. Check 74HC595 and
ULN2003
d. Check transistor oscillator or
replace main CPU
4
No sound
a. Output circuit is damaged
b. Buzzer is damaged.
a. Check 74HC595 and
ULN2003
b. Replace the buzzer.
VIII Cautions
1. Before powering up, check all cable problems, such as short circuit, open circuit
and wrong connections etc.
2. GST-RP16 is a precise electronic product and must be maintained by specific
personnel.
3. Make record on duty.
4. We take the responsibility of repairing the repeater. If any problem occurs, please
contact us in time. The users will be responsible for any result from repairing
GST-RP16 themselves
.
