Left-Side Door Open When It Is Not - Tektronix PHASER 560 Service Manual

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Left-side door open when it is not

The procedure for troubleshooting this problem applies to the Lower Tray
Assembly as well.
1. Is the left door open switch, located in the lower-left back corner of the
printer, properly in place?
2. Does closing the left door actuate the left door open switch?
3. Is the left door properly in place? Replace the door if it does not
operate correctly.
4.
Is the left door open switch's wiring harnesses properly connected to
the engine control board (CN3 – 24V interrupt)? In the case of the
Lower Tray Assembly, is the printer properly seated onto the Lower
Tray Assembly with good electrical connection. Try reseating the
printer. Check the lower feeder's wiring harness to the engine control
board at connector CN19.
5.
Replace the left door open switch.
6.
Replace the engine control board.
High temperature error
1. Replace the power supply unit.
2. Check the fans.
3. Replace the engine control board.
Low temperature error
1.
Ensure the fuser is properly installed.
2.
Check the fuser's connection and wiring.
3.
Check to see if the fuser's thermo-fuse is open. With an ohmmeter,
measure the top two pins of the fuser's connector. For 110 VAC fuser
you should measure 1.6 ohms. For 220 VAC fuser you should measure
5.4 ohms. If it is opened, replace the fuser.
4. Replace the fuser.
5. Replace the power supply unit.
6. Replace the engine control board.
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