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26
Phaser 840 Color Printer
9
NVRAM
This test does a walking 1s and a walking 0s test for
that last 4 bytes in the VxWorks section of the
NVRAM.
10
EPROM
This test reads in the first 24 bytes from the EPROM
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.
none
SCSI
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 Start Page. If a failure is detected, the
message “SCSI Option Card:” with one of the
following messages will be sent to the Start 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
10baseT
This test verifies the functionality of the Ethernet
LAN Controller chip. Any test failures with this
component are treated as non-fatal errors with the
error information written to the start page. If a failure
is detected, the message “Ethernet:” with one of the
following messages will be sent to the start page.
■
General Failure.
■
MAC internal loopback failure.
■
MII internal loopback failure (currently disabled)
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 46: ...36 Phaser 840 Color Printer ...
Page 95: ...Service Guide 85 Clearing PostScript NVRAM menu item ...
Page 96: ...86 Phaser 840 Color Printer ...
Page 121: ...Service Guide 111 Figure 1 Cabinet FRUs 7 5 6 8 1 2 4 0388 21 3 ...
Page 125: ...Service Guide 115 Figure 3 Paper path FRUs 0388 16 2 1 5 11 10 9 12 6 4 3 7 13 8 ...
Page 127: ...Service Guide 117 Figure 4 Motors and fans FRUs 0388 14 7 4 3 5 6 2 1 ...
Page 129: ...Service Guide 119 Figure 5 Circuit boards FRUs 4 3 5 2 1 9 7 6 8 10 11 13 0388 13 12 ...
Page 131: ...Service Guide 121 Figure 6 Solenoids and clutches FRUs 4 5 3 2 1 0388 23 ...
Page 137: ...Service Guide 127 Figure 9 High capacity PaperTray 0388 65a 1 2 ...
Page 142: ...132 Phaser 840 Color Printer ...
Page 154: ...144 Phaser 840 Color Printer ...