Samyung SNX-300, Инструкция по эксплуатации

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SNX-300
6.3.2. Device Composition
„
The composition is as follows.
NO. COMPOSITION MODEL REMARK
1 Receiver PCB N-726
2 CPU PCB N-727
3 Key PCB N-728
4 Power supply SP-300AD OPTION
5 Printer DPU-414 OPTION
6 Antenna SAN-300
<Table 6-1 Scope of supply>
6.4. TROUBLE SHOOTING
It must not be inspected and repaired by persons
except Samyung’s engineers. It might take place
electronic shock, a fire, wrong-operation of a
device if a not permitted person inspects devices.
Contact to an agent or A/S dep. in case of showing
wrong-operation in a device.
NO. DEFECT SYMPTOM DEFECT CAUSE SOLUTION
Power supply
Check on power supply’s voltage and
cutting
Fuse Check on fuse cutting
1 No power-on
Key Board Check on PCB N-728
LCD connecting cable Check on LCD connection cable
Power supply Check on supply power into LCD
CPU PCB Check on PCB N-727
LCD Defective LCD
2 No power-on of LCD screen
LCD luminosity
Adjust brightness and luminosity (Refer
to 5.7)
Buzzer
Buzzer is defective.
KEY PCB Check on PCB N-728
3 Alarm
CPU PCB
Check on PCB N-727
WARNING