Crestron DM-MDA-64-PWS, DM-MDA-128-PWS Instructions Manual

DigitalMedia™ Power Supplies: DM-MDA-64-PWS/DM-MDA-128-PWS

Two redundant DM-MDA-64-PWS power supplies
occupy the DM-MD64X64. Three redundant
DM-MDA-128-PWS power supplies occupy the
DM-MD128X128. This document provides instructions
for replacing a failed power supply.

CAUTION: Before removing a power supply from a
power supply slot, ac power must be removed from the
power supply to prevent damage to the equipment.
In addition, the replacement power supply must be
installed before power is reconnected.

CAUTION: The power supplies are static sensitive.
Standard electrostatic discharge precautions should be
followed when handling the power supplies.

NOTE: Although the DigitalMedia™ switcher continues
to operate if a single power supply fails, it is
recommended that the failed power supply be replaced
as soon as possible to restore power supply
redundancy.

NOTE: The power supplies are hot swappable;
therefore, a failed power supply can be replaced without
shutting down the DigitalMedia switcher.

To replace a power supply:

1. Disconnect the power cord connected to the
power inlet of the power supply being replaced.

2. Using a Phillips head screwdriver, loosen—but
do not remove—the Phillips head screw that
holds the power supply retainer plate in place.

3. Do either of the following:

 For the DM-MDA-64-PWS, slide the retainer

plate upward until it clears the power supply,
and then tighten the screw just enough to
hold the retainer plate in place.

 For the DM-MDA-128-PWS, slide the

retainer plate sideways until it clears the
power supply.

4. Do either of the following:

 For the DM-MDA-64-PWS, lift up the locking

tab of the power supply, and then use the
power supply handle to pull the power
supply out of the slot.

 For the DM-MDA-128-PWS, use the power

supply handle to pull the power supply out of
the slot.

5. Insert the replacement power supply into the
slot until the power supply is fully seated.

6. (DM-MDA-64-PWS only) Loosen the screw that
holds the retainer plate in place.

7. Slide the retainer plate back in place, and then
tighten the screw just enough to hold the plate
in place—do not overtighten the screw.

8. Connect the power cord to the power inlet of the
power supply.

DM-MDA-64-PWS Power Supply Installation DM-MDA-128-PWS Power Supply Installation

Screw and

Retainer Plate

Screw and

Locking Tab

Crestron Electronics, Inc. Installation Guide – DOC. 7505B

15 Volvo Drive Rockleigh, NJ 07647 (2036010)
Tel: 888.CRESTRON 10.13
Fax: [phone] Specifications subject to
www.crestron.com change without notice.

Retainer Plate

DigitalMedia Power Supplies Crestron DM-MDA-64-PWS/DM-MDA-128-PWS

Further Inquiries

To locate specific information or resolve questions after
reviewing this guide, contact Crestron's True Blue Support
at 1-888-CRESTRON [1-888-273-7876] or, for assistance
within a particular geographic region, refer to the listing of
Crestron worldwide offices at www.crestron.com/offices.

To post a question about Crestron products, log onto
Crestron’s Online Help at www.crestron.com/onlinehelp.
First-time users must establish a user account to fully
benefit from all available features.

Future Updates

As Crestron improves functions, adds new features and
extends the capabilities of the DM-MDA-64-PWS and
DM-MDA-128-PWS, additional information may be made
available as manual updates. These updates are solely
electronic and serve as intermediary supplements prior to
the release of a complete technical documentation
revision.

Check the Crestron Web site periodically for manual
update availability and its relevance. Updates are
identified as an “Addendum” in the Download column.

Regulatory Compliance

As of the date of manufacture, the DM-MDA-64-PWS and
DM-MDA-128-PWS have been tested and found to comply
with specifications for CE marking.

The specific patents that cover Crestron products are listed at
patents.crestron.com.

Crestron, the Crestron logo, and DigitalMedia are either
trademarks or registered trademarks of Crestron Electronics, Inc.
in the United States and/or other countries. Other trademarks,
registered trademarks, and trade names may be used in this
document to refer to either the entities claiming the marks and
names or their products. Crestron disclaims any proprietary
interest in the marks and names of others. Crestron is not

responsible for errors in typography or photography.

This document was written by the Technical Publications
department at Crestron.
©2013 Crestron Electronics, Inc.

Return and Warranty Policies

Merchandise Returns / Repair Service

1. No merchandise may be returned for credit, exchange or
service without prior authorization from Crestron. To obtain
warranty service for Crestron products, contact an authorized
Crestron dealer. Only authorized Crestron dealers may contact
the factory and request an RMA (Return Merchandise
Authorization) number. Enclose a note specifying the nature of
the problem, name and phone number of contact person, RMA
number and return address.

2. Products may be returned for credit, exchange or service with a
Crestron Return Merchandise Authorization (RMA) number.
Authorized returns must be shipped freight prepaid to Crestron,
6 Volvo Drive, Rockleigh, N.J. or its authorized subsidiaries,
with RMA number clearly marked on the outside of all cartons.
Shipments arriving freight collect or without an RMA number
shall be subject to refusal. Crestron reserves the right in its sole
and absolute discretion to charge a 15% restocking fee plus
shipping costs on any products returned with an RMA.

3. Return freight charges following repair of items under warranty
shall be paid by Crestron, shipping by standard ground carrier.
In the event repairs are found to be non-warranty, return freight
costs shall be paid by the purchaser.

Crestron Limited Warranty

Crestron Electronics, Inc. warrants its products to be free from
manufacturing defects in materials and workmanship under normal
use for a period of three (3) years from the date of purchase from
Crestron, with the following exceptions: disk drives and any other
moving or rotating mechanical parts, pan/tilt heads and power
supplies are covered for a period of one (1) year; touch screen display
and overlay components are covered for 90 days; batteries and
incandescent lamps are not covered.

This warranty extends to products purchased directly from Crestron or
an authorized Crestron dealer. Purchasers should inquire of the dealer
regarding the nature and extent of the dealer's warranty, if any.

Crestron shall not be liable to honor the terms of this warranty if the
product has been used in any application other than that for which it
was intended or if it has been subjected to misuse, accidental
damage, modification or improper installation procedures.
Furthermore, this warranty does not cover any product that has had
the serial number altered, defaced or removed.

This warranty shall be the sole and exclusive remedy to the original
purchaser. In no event shall Crestron be liable for incidental or
consequential damages of any kind (property or economic damages
inclusive) arising from the sale or use of this equipment. Crestron is
not liable for any claim made by a third party or made by the
purchaser for a third party.

Crestron shall, at its option, repair or replace any product found
defective, without charge for parts or labor. Repaired or replaced
equipment and parts supplied under this warranty shall be covered
only by the unexpired portion of the warranty.

Except as expressly set forth in this warranty, Crestron makes no
other warranties, expressed or implied, nor authorizes any other party
to offer any warranty, including any implied warranties of
merchantability or fitness for a particular purpose. Any implied
warranties that may be imposed by law are limited to the terms of this
limited warranty. This warranty statement supersedes all previous
warranties.

2  DigitalMedia Power Supplies: DM-MDA-64-PWS/DM-MDA-128-PWS Installation Guide – DOC. 7505B