Network Card Leds; Test Print Button - Tektronix Phaser 560 Service Manual

Network card LEDs

Test print button

The Ethernet network card has two LED indicators:
TX indicator (yellow); blinks while data is transmitted to the host. The
LED is off while no data is being sent.
Twisted Pair (10baseT). RX indicator (green); blinks while the
network card is receiving data. The LED is on steady while no data is
being received. If the LED is off steady , then a problem (probably
hardware) has occurred at the network hub.
ThinNet (10base2). RX indicator (green); blinks while the network
card is receiving data. The LED is off stead y while no data is being
received. If the LED is on steady , then a problem (probably hardware)
has occurred at the network hub.
Note
Do not use both Ethernet connectors at the same time. If both are used
the 10base2 line is ignored.
The Token Ring network card has two LED indicators:
Connection (yellow); off when the printer is not inserted into the Token
Ring, blinks while the printer is attempting to insert itself into the
Token Ring, on when the printer is properly inserted in the ring.
Ring Speed (green); off when the card is set for 4 megabits per second
(MBPS), on when the card is set for 16 MBPS.
When both LEDs blink, a network card failure has occurred.
In the center of the rear cabinet panel is the test print button. Pressing this
button while the printer is idle causes the print engine to print a built-in test
print. The print consists of a field of thin horizontal lines. The print is made
independently of the image processor board. Hold in the test button for at least
4 seconds before releasing, or until you hear the print process begin. The print
demonstrates that the print engine can print (independently of the image
processor), it has no use for determine print quality.
General Information
Service Manual 1-11
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