Installation
DL20 Firmware Upgrade Kit
Overview
The firmware upgrade kit provides a Y2K compliant date for printed
messages on a DL20 message display. This upgrade only updates the latest
series of DL20 message displays (DL20 Series G). The series number is
printed on the product label on the back of the DL20. The upgrade
firmware provides the correct date in printed messages for the years 1980 to
2079.
Important: Refer to the table below to verify that the EPROMs contained
within this kit are for the correct DL20 product.
Wiring and Safety Guidelines
!
DL20 EPROM Charts
ATTENTION: Electrostatic Discharge (ESD) can damage
electronic components. Perform all work in an anti-static
environment. Always wear an anti-static wrist band which is
well grounded.
Use the following charts to verify that you have the correct EPROM for
your DL20 message display.
Table A Kit / EPROMS for 1-Line DL20 Displays
Kit Number
Contains this EPROM:
For these DL20 Displays:
46714-625-01 (8K)
46714-940-17 (8K)
2706-B13J8, 2706-B13C8
46714-625-02 (16K)
46714-941-17 (16K)
2706-B13J16, 2706-B13C16
46714-625-03 (31K)
46714-942-17 (31K)
2706-B13J31, 2706-B13C31
Table B EPROMS for 2-Line DL20 Displays
Kit Number
Contains this EPROM:
For these DL20 Displays:
46714-625-04 (8K)
46714-943-17 (8K)
2706-B23J8, 2706-B23C8
46714-625-05 (16K)
46714-944-17 (16K)
2706-B23J16, 2706-B23C16
46714-625-06 (31K)
46714-945-17 (31K)
2706-B23J31, 2706-B23C31
Table C EPROMS for 4-Line DL20 Displays
Kit Number
Contains this EPROM:
For these DL20 Displays:
46714-625-07 (16K)
46714-946-17 (16K)
2706-B43J16, 2706-B43C31
46714-625-08 (31K)
46714-947-17 (31K)
2706-B43J31, 2706-B43C31
EPROM Installation
To install the upgrade EPROM:
1. Important: Save any loaded application file to disk before upgrading
the firmware EPROM. Refer to the DL20 user manual (Publication No.
2706-814).
2. Turn off all power to the DL20, including any parallel or serial port
connections.
3. Remove the 3 screws that secure the top cover and remove cover.
4. Refer to the following illustration and locate the firmware EPROM
located in the IC socket U17. Note the location of the notch on the top
edge of the EPROM.
Notch
U17
5. Using the IC chip puller, included in the EPROM kit, remove the
EPROM U17
!
ATTENTION: Installing the EPROM in the wrong orientation
(notch not positioned correctly) may damage the EPROM and
the DL20.
6. Place the new DL20 firmware EPROM in the U17 socket making sure
the notch is oriented as shown in the illustration above. The adjacent
chips will have the notch on the same side.
7. Make sure the pins on the chip align with the socket and gently press
down until the chip is fully seated.
8. Install the DL20 cover and secure with three screws.
9. Apply power to the DL20 and check for proper operation.
41061-122-01(B)
Copyright 1999 Rockwell International Corporation. Printed in the U.S.A.
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