No Reaction At Power Up - Intermec EasyCoder 501 XP Service Manual

Chapter 17 Troubleshooting
17.2 No Reaction at
Power Up
144
Description:
There is no visible reaction when the power to the printer is
turned on.
- The Power LED does not light up.
- There is no text in the display window.
Possible Causes and Suggested Remedies:
• No power in outlet.
- Check with some other electrical device or a voltage meter.
• Power cord connectors not completely inserted in printer's AC
receptacle or in wall outlet.
- Disconnect and fi rmly connect both ends of power cord. Try
again.
• Faulty power cord.
- Replace and try again.
• Cable between CPU board and power supply not properly con-
nected.
- Test as described in Chapter 17.5 using test points on CPU
board (see Chapter 15.5.)
• Power Supply overload.
- Too high a temperature in the power supply unit. Leave the
power on and wait for the power supply to cool off (may take
up to half an hour.) When the temperature returns to normal,
the printer will automatically restart. If the error persists,
examine the power supply as described in Chapter 17.5.
- A new fan with higher capacity for extreme operating condi-
tions is available as a spare part.
• Faulty power supply unit.
- Refer to Chapter 17.5.
• Faulty console unit.
- Refer to Chapter 17.6.
Intermec EasyCoder 501 XP – Service Manual Ed. 4