Image Processor Self-Diagnostics; Phaser 300I Image Processor Rear Panel Switches For Self-Testing - Tektronix Phaser 300i Service Manual

6
Troubleshooting

Image processor self-diagnostics

Phaser 300i image processor rear panel switches for self-testing

6-44 Phaser 300i and 300RX Color Printer
The image processor features four types of self-diagnostic modes. The type of
self-diagnostics run depend upon the position of rear panel DIP Switches 2, 3
and 4. The switch combinations are listed here.
Switch
2 3 4 Self-diagnostic mode
↓ ↓ ↓
Normal power-up self-test
↑ ↓ ↓
Extended diagnostic self-test
↓ ↑ ↓
Skip the power up self tests
↑ ↑ ↓
Manufacturing service self-test
↓ ↓ ↑
Print configuration page
↑ ↓ ↑
Print demo pages
↓ ↑ ↑
not used
↑ ↑ ↑
not used
The selected self-diagnostics begin upon power-up or after a hardware reset
(DIP Switch 1 toggled).
Normal power-up self-test.
a problem is encountered with the image processor's expansion memory or
other options, then the information is printed on the printer's startup page.
Normal power-up tests take slightly longer than 1 minute to complete.
Printers with 8 rear panel LEDs indicate a self-diagnostic test failure by
remaining in the illuminated configuration they were in when the particular
failing self-test started. See Table 6-6 for a list of the diagnostics tests. After the
test complete successfully, the first LED flashes in a regular one flash-per-second
rate meaning no errors were detected and the image processor's CPU is running.
Printers with a single rear panel LED indicate a self-diagnostic test failure by
remaining either on or off. The light blinks irregularly during self-test and then
blinks in a regular one flash-per-second rate meaning no errors were detected and
the image processor's CPU is running.
This test requires no paper or customer interaction. If