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30
Phaser 840 and 850 Color Printers
9
NVRAM
(Phaser 840
only)
This test does a walking 1s and a walking 0s test for
that last 4 bytes in the VxWorks section of the
NVRAM.
10
EEPROM
This test reads in the first 24 bytes from the
EEPROM then verifies that the Tektronix Ethernet
address 0x08, 0x00, and 0x11 has been copied into
three locations.
11
Mariner ASIC
This test reads and verifies the version level of the
Mariner ASIC.
12
Medusa ASIC
This tests reads and verifies the version level of the
Medusa ASIC.
13
Super Glue
ASIC
This tests reads and verifies the version level of the
Super Glue ASIC.
14
CL1284 IC
This tests reads and verifies the version level of the
parallel port controller CL1284 chip.
17
Ethernet chip
This test verifies the existence of the Ethernet chip
on the main board.
18
TEA error
(Phaser 850
only)
The error occurs during power-up self tests when
one of the main devices previously enabled fails to
respond, unexpectedly causing a TEA. (Normal
TEAs cause the corresponding specific error.)
none
SCSI
(Phaser 840
only)
This test verifies the functionality of the SCSI I/O
processor. Any test failures with this component are
treated as non-fatal errors with the error information
written to the Startup Page. If a failure is detected,
the message “SCSI Option Card:” with one of the
following messages will be sent to the Startup Page.
■
Wrong values in script-set scratch registers.
■
Script operation timed-out.
■
Script operation returns wrong exit code.
■
DMA transfer spills outside buffer.
■
DMA transfer data mismatch.
none
IDE hard
drive
This test verifies that the main board is able to
communicate with the IDE drive.
Table 3 Main board power-up self-test error codes
Left LED
flashes
Long flash =5
Short flash=1
2L+1S=11
Meaning
Details
Summary of Contents for Phaser 840
Page 11: ...xii Phaser 840 and 850 Color Printers ...
Page 65: ...54 Phaser 840 and 850 Color Printers ...
Page 101: ...90 Phaser 840 and 850 Color Printers ...
Page 125: ...114 Phaser 840 and 850 Color Printers ...
Page 134: ...Service Guide 123 Clearing PostScript NVRAM menu item ...
Page 135: ...124 Phaser 840 and 850 Color Printers ...
Page 166: ...Service Guide 155 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 9 9 ...
Page 170: ...Service Guide 159 Figure 3 Paper path FRUs 0388 80 2 1 5 11 10 9 12 6 4 3 7 13 8 11a 11b ...
Page 172: ...Service Guide 161 Figure 4 Motor and fan FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 174: ...Service Guide 163 Figure 5 Circuit board FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 81 12 7a ...
Page 176: ...Service Guide 165 Figure 6 Solenoid and clutch FRUs 4 5 3 2 1 0388 23 ...
Page 182: ...Service Guide 171 Figure 9 High capacity PaperTray 0388 65a 1 2 ...