No Reaction At Power Up - Intermec EasyCoder PX4i Service Manual

17.2 No Reaction at Power Up

EasyCoder PX4i and PX6 Service Manual
Description:
There is no visible reaction when the power to the printer is switched on.
• The Power LED does not light up.
• There is no text in the display window.
Possible Causes and Suggested Remedies:
• No power in AC wall socket.
- Check with some other electrical device or a voltage meter.
• Power cord connectors not completely inserted in printer's power cord
receptacle or in wall socket.
- Disconnect and fi rmly connect both ends of power cord. Try again.
• Faulty power cord.
- Replace and try again.
• Cables between power supply, driver board and CPU board not prop-
erly connected.
- 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.
• Faulty power supply unit.
- Refer to Chapter 17.5.
• Faulty driver board.
- Refer to Chapter 17.6.
• Faulty console unit.
- Refer to Chapter 17.7.
Chapter 17 — Troubleshooting
213