Product

• Thermal 2 head
• Lotem^® Quantum

Background

Use this procedure if errors [03553] or [03573] occur. These errors may have different causes.

Note: If a WLP burst error occurs, see Troubleshooting WLP burst errors.

Requirements

• DC voltmeter
• Testing the Voltage of the Safety Interlock
• Measuring Voltages on a TH2 head

Procedure

The safety lines in a thermal 2 head require 24 volts. Normally the output device provides this voltage. This voltage is interrupted when a door or panel is opened or when a safety condition is broken.

You must differentiate between an expected safety loop interruption and a faulty element. Faulty elements may be:

• 24-V power supply
• Interlock switches
• Interlock board
• Relays
• Cable to the head
• Thermal 2 head

Use the flowcharts to troubleshoot this problem.

Flowcharts

Tip: Click on the images to view the full-size flowcharts. To print this page, adjust the Page Layout to Landscape.

See also

• Diagnosing safety loop faults and WLP burst errors
• Testing the Voltage of the Safety Interlock
• Diagram: Quantum Interlock System and Th2 Safety Loop
• Exposure Head Power Wiring Diagram (P/N 10-4816B-A-AD01)

Technical contact(s)

Content owner: Doug Jeffery
See the Escalation page for escalation contacts.

Date submitted

31 Jan 2003