NCR RealPOS 60 Hardware Service Manual page 12

2 Diagnostics
Current System
Suspect Component
Operation
• OFF Power System
• AC Present
Runtime Cooling Compo-
nent/CPU
POST CPU
POST BIOS Chip
POST Memory
POST Motherboard
System State Power LED
• OFF OFF
• Not in
Standby
• External P/S
ON
Over Tempera- Flashes red/
ture green, then
solid red as
temperature
increases
CPU not Operat- ON
ing
BIOS Checksum ON
Failure
Memory Issue ON
No Display ON
Disk Activity
Corrective Action
LED
OFF 1. Check AC power to
P/S
2. Check P/S
3. Check connection
between unit and P/S
4. Check power
connection from Back
Panel to Motherboard
and Motherboard to
Front Panel
5. Replace P/S
6. Replace Motherboard
7. Replace Front Panel
Board
1. Check for blocked
N/A
cooling vents
2. Check for excessive
ambient temperature
3. Check cooling
components
1. Check for correctly
ON
installed CPU
2. Replace Motherboar
1. Perform BIOS crisis
Flashing
recover
(4/Sec)
2. Replace BIOS chip
3. Replace Motherboard
4. Check for properly
Flashing
installed memory
(1/Sec)
5. Replace memory
6. Replace Motherboard
Flashing Replace Motherboard
1/4 Sec)