GRASS VALLEY K2 SOLO - User manual

K2 Solo
Media Server
Service Manual
071-8709-01
April 2010

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K2 Solo
Media Server
Service Manual
071-8709-01
April 2010

4K2 Solo Media Server Service Manual 09 April 2010
Copyright Copyright © Grass Valley, Inc. All rights reserved. Printed in the United States of America.
Portions of software © 2000 – 2010, Microsoft Corporation. All rights reserved. This document
may not be copied in whole or in part, or otherwise reproduced except as specifically permitted
under U.S. copyright law, without the prior written consent of Grass Valley, Inc., P.O. Box
59900, Nevada City, California 95959-7900. This product may be covered by one or more U.S.
and foreign patents.
Disclaimer Product options and specifications subject to change without notice. The information in this
manual is furnished for informational use only, is subject to change without notice, and should
not be construed as a commitment by Grass Valley, Inc. Grass Valley, Inc. assumes no
responsibility or liability for any errors or inaccuracies that may appear in this publication.
U.S. Government
Restricted Rights
Legend
Use, duplication, or disclosure by the United States Government is subject to restrictions as set
forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause
at DFARS 252.277-7013 or in subparagraph c(1) and (2) of the Commercial Computer
Software Restricted Rights clause at FAR 52.227-19, as applicable. Manufacturer is Grass
Valley, Inc., P.O. Box 59900, Nevada City, California 95959-7900 U.S.A.
Trademarks and
Logos Grass Valley, K2, Aurora, Summit, Dyno, Solo, Infinity, Turbo, Profile, Profile XP, NetCentral,
NewsBrowse, NewsEdit, NewsQ, NewsShare, NewsQ Pro, and Media Manager are either
registered trademarks or trademarks of Grass Valley, Inc. in the United States and/or other
countries. Grass Valley, Inc. products are covered by U.S. and foreign patents, issued and
pending. Additional information regarding Grass Valley, Inc. trademarks and other proprietary
rights may be found at www.grassvalley.com. Other trademarks and logos used in this
document are either registered trademarks or trademarks of the manufacturers or vendors of
the associated products, such as Microsoft® Windows® operating system, Windows Media®
player, Internet Explorer® internet browser, and SQL Server™. QuickTime and the QuickTime
logo are trademarks or registered trademarks of Apple Computer, Inc., used under license
therefrom.
Revision Status
Rev Date Description
13 October 2009 Initial release of the K2 Solo Media Server Service Manual —
071-8709-00
09 April 2010 Updates for fan FRU and recovery procedure — 071-8709-01

09 April 2010 K2 Solo Media Server Service Manual 5
Contents
Finding Information...........................................................................................9
Grass Valley Product Support.................................................................................11
Web Technical Support......................................................................................11
Telephone Support.............................................................................................11
Waste Electrical and Electronic Equipment Directive.........................................13
Safety Summaries..............................................................................................15
Chapter 1 Product Description
Overview description...............................................................................................30
K2 Solo Media Server orientation............................................................................30
FRU functional descriptions ....................................................................................31
Chassis fan.........................................................................................................31
Disk modules......................................................................................................31
CompactFlash boot media..................................................................................31
Power supply module .........................................................................................32
Codec module ....................................................................................................32
MPEG-2 encoder card........................................................................................32
AVC-Intra codec card .........................................................................................32
Disk controller board...........................................................................................33
Front interconnect board ....................................................................................33
Midplane board...................................................................................................33
Carrier module....................................................................................................33
Drive cable assembly .........................................................................................33
System Overview ....................................................................................................34
Status indicators......................................................................................................35
Front panel indicators.........................................................................................35
Rear panel indicators..........................................................................................36
System beep codes............................................................................................38
Chapter 2 System Messages
About system messages ......................................................................................... 40
Critical system startup messages............................................................................41
Viewing AppCenter system status messages.........................................................41
Viewing system status messages.......................................................................42
Copying StatusPane messages to the clip board...............................................43
Clearing messages.............................................................................................43
Chapter 3 Service Procedures
About the write filter.................................................................................................45
Enabling the write filter............................................................................................45
Disabling the write filter...........................................................................................46
Committing a file to disk with write filter enabled.....................................................46
Exporting log files....................................................................................................47
Replacing a RAID 0 drive........................................................................................49
About networking.....................................................................................................49
Restoring network configuration..............................................................................50
Install the loop-back adapter ..............................................................................50
Identify adapters.................................................................................................51
Name adapters...................................................................................................54
Set Rx/Tx Descriptors Value ..............................................................................55
Create the Control Team....................................................................................55
Name team and loopback...................................................................................58
Reorder adapters................................................................................................59
Set power management settings........................................................................60
Checking services ...................................................................................................60
Services on a K2 Solo Media Server..................................................................60

6K2 Solo Media Server Service Manual 09 April 2010
Contents
Checking pre-installed software.............................................................................. 61
K2 Solo Media Server pre-installed software..................................................... 61
Making CMOS settings ........................................................................................... 62
Using recovery images............................................................................................ 62
About the recovery image process..................................................................... 62
Creating a recovery image ................................................................................. 63
Restoring from a recovery image....................................................................... 65
Using CompactFlash boot media for system restore ......................................... 66
Using diagnostic tools ............................................................................................. 67
Running Check Disk........................................................................................... 67
Running diagnostics for K2 Summit Production Client....................................... 68
Chapter 4 Troubleshooting problems
Step 1: Check configurations .................................................................................. 72
Step 2: Check connections and external equipment............................................... 72
Step 3: Check system status messages................................................................. 72
Step 4: Identify problems using the startup sequence............................................ 72
Shutdown/restart problems ..................................................................................... 74
Checking external equipment.................................................................................. 75
VGA display problems........................................................................................ 75
Keyboard and mouse problems ......................................................................... 75
Power connection sequence................................................................................... 75
BIOS startup............................................................................................................ 76
Windows startup...................................................................................................... 76
K2 Solo Media Server system startup..................................................................... 76
Windows startup problems...................................................................................... 77
Thermal problems ................................................................................................... 77
Codec board problems............................................................................................ 77
Power supply problems........................................................................................... 78
Video problems....................................................................................................... 79
Audio problems....................................................................................................... 79
Timecode problems................................................................................................. 80
Operational problems.............................................................................................. 81
System problems .................................................................................................... 82
Storage problems.................................................................................................... 83
Media File System problems.............................................................................. 83
Media disk problems .......................................................................................... 83
Checking the storage system............................................................................. 85
Network, transfer, and streaming problems ............................................................ 86
Chapter 5 Removing and replacing FRUs
External Parts Removal .......................................................................................... 88
Handipak handle removal................................................................................... 88
Handipak feet removal ....................................................................................... 89
Codec module removal ...................................................................................... 89
Codec option card removal ................................................................................ 90
Front bezel removal............................................................................................ 91
CompactFlash boot media removal.................................................................... 91
Fan assembly removal....................................................................................... 92
Fan removal ....................................................................................................... 93
Disk controller board removal............................................................................. 93
Front interconnect board removal ...................................................................... 93
Disk module removal.......................................................................................... 94
Internal Parts Removal............................................................................................ 95
Top cover removal.............................................................................................. 96
Unfasten and disconnect cables ........................................................................ 97
Remove rear panel............................................................................................. 97

09 April 2010 K2 Solo Media Server Service Manual 7
Carrier module removal......................................................................................99
Power supply removal ........................................................................................99
Midplane board removal.....................................................................................101
Drive cable assembly removal............................................................................101
Installing components and dressing cables........................................................102
Index......................................................................................................................105

8K2 Solo Media Server Service Manual 09 April 2010
Contents

09 April 2010 K2 Solo Media Server Service Manual 9
Finding Information
This service manual provides procedures for servicingthe K2™ Solo™ Media Server
to the field-replaceable unit level. Use this manual to isolate problems to a board or
module, such as the Power Supply, and to make repairs through module exchange.
How this manual is organized
This manual is organized around the tasks required to service the K2 Solo Media
Server. The following describes the chapters included in this manual:
Chapter 1, Product Description — Describes the key features, system components,
and status indicators of the K2 Solo Media Server.
Chapter 2, System Messages — Lists the various messages and system codesthat you
might encounter as you use the K2 Solo Media Server.
Chapter 3, Service Procedures — Contains procedures for periodic maintenance and
repair.
Chapter4, Troubleshootingproblems— Containsproblemdescriptionswithstepsfor
diagnosing and correcting the cause of the problem. Use this information if you are
having trouble with your K2 Solo Media Server.
Chapter 5, Removing and replacing FRUs — Contains procedures for removing and
replacing field replaceable hardware components.
Getting more information
The following sections help you find the information you need in product manuals
and elsewhere.
For the installer of a K2 Solo Media Server
If you are installing a K2 Solo Media Server, refer to documentation in the following
sequence:
Release Notes
The K2 Release Notes contain the latest information about the software shipped on
your system. The release notes include software upgrade instructions, software
specifications and requirements, feature changes from the previous releases, and any
Find this document… In these locations… In these formats:
1 K2 Release Notes K2 product shipping box Printed
Grass Valley Website PDF file
2 Quick Start Guide for the K2 product K2 product shipping box Printed
K2 Documentation CD PDF file
Grass Valley Website PDF file
3 K2 System Guide K2 Documentation CD PDF file
Grass Valley Website PDF file

10 K2 Solo Media Server Service Manual 09 April 2010
Finding Information
known problems. Because release notes contain the latest information, they are
printed out and included in the K2 product shipping box, rather than included in the
Documentation CD-ROM. You should always check the Grass Valley Website to
determine if there is an updated version of release notes available.
Documentation CD
Except for the release notes, the full set of support documentation, including this
manual, is available on the K2 Documentation CD that you receive with your K2
product. You can find the Documentation CD packaged in K2 product shipping
boxes.
The Documentation CD includes the following:
•K2 AppCenter User Manual — Provides instructions for configuring and operating
the media channels of product.
•Quick Start Guides — The Quick Start Guide provides step-by-step installation
instructions for basic installation and operation of the K2 product.
•K2 System Guide — Contains the product specifications and instructions for
modifying system settings.
•Service Manuals — Contains information on servicing and maintaining the K2
product.
•K2 SAN Installation and Service Manual — Contains installation, configuration, and
maintenance procedures for shared storage options.
•K2 Storage Cabling Guide — Contains diagrams for cabling the devices of the K2
Solo Media Server.
•RAID Instruction Manuals — There is an Instruction Manual for each type of RAID
storage device thatcan be a part of a K2 Solo Media Server. These manuals contain
procedures for configuring and servicing the device.
•Fibre Channel Switch Installation Manual — Contains information on configuring
and servicing the Fibre Channel switch.
On-line Help Systems
K2 AppCenter Help — In the AppCenter user interface menu bar select Help, then
choose AppCenter Help Topics from the drop-down menu.
SiteConfig Help — In the SiteConfig user interface menu bar select Help, then choose
SiteConfig Help Topics from the drop-down menu.
NetCentral Help — From the NetCentral interface select Help | NetCentral Help Topics.
NetCentral documentation
The NetCentral product has its own documentation set, described as follows:
•NetCentral Quick Start Guide — Provides an overview of the installation process to
quickly set up and run NetCentral.
•NetCentral Installation Guide — Identifies requirements and procedures to correctly

09 April 2010 K2 Solo Media Server Service Manual 11
Grass Valley Product Support
set up servers and devices, as well as provides detailed instructions to install and
configure NetCentral software.
•NetCentral User Guide — Describes how to use the NetCentral Managerto monitor
devices.
•NetCentral Help — From the NetCentral interface access on-line help. Select Help |
NetCentral Help Topics.
NetCentral documentation
The NetCentral product has its own documentation set, described as follows:
•NetCentral Quick Start Guide — Provides an overview of the installation process to
quickly set up and run NetCentral.
•NetCentral Installation Guide — Identifies requirements and procedures to correctly
set up servers and devices, as well as provides detailed instructions to install and
configure NetCentral software.
•NetCentral User Guide — Describes how to use the NetCentral Managerto monitor
devices.
•NetCentral Help — From the NetCentral interface access on-line help. Select Help |
NetCentral Help Topics.
Also find information about monitoring a specific product in that product’s manuals.
Grass Valley Web Site
This public Web site contains all the latest manuals and documentation, and
additional support information. Use the following URL.
http://www.grassvalley.com.
Grass Valley Product Support
To get technical assistance, check on the status of a question, or to report a new issues,
contact Grass Valley Product Support via e-mail, the Web, or by phone or fax.
Web Technical Support
To accesssupport information on the Web, visit the product support Web page on the
Grass Valley Web site. You can download software or find solutions to problems.
World Wide Web:http://www.grassvalley.com/support/
Technical Support E-mail Address:[e-mail]
Telephone Support
Use the following information to contact Product Support by phone.

12 K2 Solo Media Server Service Manual 09 April 2010
Finding Information
International Support Centers
Our international support centers are available 24 hours a day, 7 days a week.
Authorized Local Support Representative
A local support representative may be available in your country. To locate a support
center during normal local business hours, refer to the following list. This list is
regularly updated on the website for Grass Valley Product Support
(http://www.grassvalley.com/support/contact/phone/)
After–hours local phone support is also available for warranty and contract
customers.
Support Center Toll free In country
France [phone] [phone]
United States [phone] [phone]
Region County Telephone
Asia China [phone]
Hong Kong, Taiwan, Korea,
Macau [phone]
Japan [phone]
Southeast Asia - Malaysia [phone]
Southeast Asia - Singapore [phone]
India [phone]
Pacific Australia 1 300 721 495
New Zealand 0800 846 676
For callers outside Australia or
New Zealand [phone]
Central America, South America All [phone]
North America North America, Mexico,
Caribbean [phone]; [phone]

09 April 2010 K2 Solo Media Server Service Manual 13
Waste Electrical and Electronic Equipment Directive
Waste Electrical and Electronic Equipment Directive
Europe UK, Ireland, Israel [phone]
Benelux – Netherlands [phone]
Benelux – Belgium [phone]
France [phone];
[phone]
Germany, Austria,
Eastern Europe [phone]
Belarus, Russia, Tadzhikistan,
Ukraine, Uzbekistan [phone]; [phone]
Nordics (Norway, Sweden,
Finland, Denmark, Iceland) [phone]; [phone]
Southern Europe – Italy Rome: [phone] ; +39
06 8720 35 42. Milan: +39 02 48
41 46 58
Southern Europe – Spain [phone]
Switzerland [phone]
Middle East, Near East, Africa Middle East [phone]
Near East and Africa [phone];
[phone]
Region County Telephone

14 K2 Solo Media Server Service Manual 09 April 2010
Finding Information

09 April 2010 K2 Solo Media Server Service Manual 15
Safety Summaries
Read the following sections for important safety information.
• Safety Summary
• Sicherheit – Überblick
• Consignes desécurité
• Certifications and compliances

16 K2 Solo Media Server Service Manual 09 April 2010
Safety Summaries
Safety Summary
Read and follow the important safety information below, noting especially those
instructions related to risk of fire, electric shock or injury to persons. Additional
specific warnings not listed here may be found throughout the manual.
Safety terms and symbols
Terms in this manual
Safety-related statements may appear in this manual in the following form:
Terms on the product
These terms may appear on the product:
DANGER — A personal injury hazard is immediately accessible as you read the
marking.
WARNING — A personal injury hazard existsbut is not immediately accessible as you
read the marking.
CAUTION — A hazard to property, product, and other equipment is present.
Symbols on the product
The following symbols may appear on the product:
WARNING:Anyinstructionsinthismanualthatrequireopening
the equipment cover or enclosure are for use by qualified service
personnel only. To reduce the risk of electric shock, do not
perform any servicing other than that contained in the operating
instructions unless you are qualified to do so.
WARNING: Warning statements identify conditions or practices
that may result in personal injury or loss of life.
CAUTION: Caution statements identify conditions or practices
that may result in damage to equipment or other property, or
which may cause equipment crucial to your business
environment to become temporarily non-operational.
Indicates that dangerous high voltage is present within the
equipment enclosure that may be of sufficient magnitude to
constitute a risk of electric shock.
Indicates that user, operator or service technician should refer to
product manual(s) for important operating, maintenance, or service
instructions.
Thisisa prompttonotefuse ratingwhen replacingfuse(s).Thefuse
referenced in the text must be replaced with one having the ratings
indicated.

09 April 2010 K2 Solo Media Server Service Manual 17
Warnings
The following warning statements identify conditions or practices that can result in
personal injury or loss of life.
Dangerous voltage or current may be present — Disconnect power and removebattery
(if applicable) before removing protective panels, soldering, or replacing
components.
Do not service alone — Do not internally service this product unless another person
capable of rendering first aid and resuscitation is present.
Remove jewelry — Prior to servicing, remove jewelry such as rings, watches, and
other metallic objects.
Avoid exposed circuitry — Do not touch exposed connections, components or
circuitry when power is present.
Use proper power cord — Use only the power cord supplied or specified for this
product.
Ground product — Connect the grounding conductor of the power cord to earth
ground.
Operate only with covers and enclosure panels in place — Do not operate this product
when covers or enclosure panels are removed.
Use correct fuse — Use only the fuse type and rating specified for this product.
Use only in dry environment — Do not operate in wet or damp conditions.
Use only in non-explosive environment — Do not operate this product in an explosive
atmosphere.
High leakage current may be present — Earth connection of productis essential before
connecting power.
Dual power suppliesmay be present — Be certain to plug each power supply cord into
a separate branchcircuit employinga separateservice ground.Disconnect both power
supply cords prior to servicing.
Double pole neutral fusing — Disconnect mains power prior to servicing.
Use proper lift points — Do not use door latches to lift or move equipment.
Avoid mechanical hazards — Allow all rotating devices to come to a stop before
servicing.
Identifiesaprotectivegroundingterminalwhichmustbeconnected
to earth ground prior to making any other equipment connections.
Identifies an external protective grounding terminal which may be
connected to earth ground as a supplementto an internal grounding
terminal.
Indicates that static sensitive components are present which maybe
damaged by electrostatic discharge. Use anti-static procedures,
equipment and surfaces during servicing.

18 K2 Solo Media Server Service Manual 09 April 2010
Safety Summaries
Cautions
The following caution statements identify conditions or practices that can result in
damage to equipment or other property
Use correct power source — Do not operate this product from a power source that
applies more than the voltage specified for the product.
Use correct voltage setting — If this product lacks auto-ranging power supplies,
before applying power ensure that the each power supply is set to match the power
source.
Provide proper ventilation — To prevent product overheating, provide equipment
ventilation in accordance with installation instructions.
Use anti-static procedures — Static sensitive components are present which may be
damaged by electrostatic discharge. Use anti-static procedures, equipment and
surfaces during servicing.
Do not operate with suspected equipment failure — If you suspect product damage or
equipment failure, have the equipment inspected by qualified service personnel.
Ensure mains disconnect — If mains switch is not provided, the power cord(s) of this
equipment provide the means of disconnection. The socket outlet must be installed
near the equipment and must be easily accessible. Verify that all mains power is
disconnected before installing or removing power supplies and/or options.
Route cable properly — Route power cords and other cables so that they ar not likely
to be damaged. Properly support heavy cable bundles to avoid connector damage.
Use correct power supply cords — Power cords for this equipment, if provided, meet
all North American electrical codes. Operation of this equipment at voltages
exceeding 130 VAC requires power supply cords which comply with NEMA
configurations. International power cords, if provided, have the approval of the
country of use.
Use correct replacement battery — This product may contain batteries. To reduce the
risk of explosion, check polarity and replace only with the same or equivalent type
recommended by manufacturer. Dispose of used batteries according to the
manufacturer’s instructions.
Troubleshoot only to board level — Circuit boards in this product are densely
populatedwithsurfacemounttechnology(SMT)componentsandapplicationspecific
integrated circuits (ASICS). As a result, circuit board repair at the component level is
very difficult in the field, if not impossible. For warranty compliance, do not
troubleshoot systems beyond the board level.

09 April 2010 K2 Solo Media Server Service Manual 19
Sicherheit – Überblick
Lesen und befolgen Sie die wichtigen Sicherheitsinformationen dieses Abschnitts.
Beachten Sie insbesondere die Anweisungen bezüglich
Brand-, Stromschlag- und Verletzungsgefahren. Weitere spezifische, hier nicht
aufgeführte Warnungen finden Sie im gesamten Handbuch.
Sicherheit – Begriffe und Symbole
In diesem Handbuch verwendete Begriffe
Sicherheitsrelevante Hinweise können in diesem Handbuch in der folgenden Form
auftauchen:
Hinweise am Produkt
Die folgenden Hinweise können sich am Produkt befinden:
GEFAHR – Wenn Sie diesen Begriff lesen, besteht ein unmittelbares
Verletzungsrisiko.
WARNUNG – Wenn Sie diesen Begriff lesen, besteht ein mittelbares
Verletzungsrisiko.
VORSICHT – Es besteht ein Risiko für Objekte in der Umgebung, den Mixer selbst
oder andere Ausrüstungskomponenten.
Symbole am Produkt
Die folgenden Symbole können sich am Produkt befinden:
WARNUNG: Alle Anweisungen in diesem Handbuch, die das
Abnehmen der Geräteabdeckung oder des Gerätegehäuses
erfordern, dürfen nur von qualifiziertem Servicepersonal
ausgeführt werden. Um die Stromschlaggefahr zu verringern,
führen Sie keine Wartungsarbeiten außer den in den
Bedienungsanleitungen genannten Arbeiten aus, es sei denn, Sie
besitzen die entsprechende Qualifikationen für diese Arbeiten.
WARNUNG: Warnungen weisen auf Situationen oder
Vorgehensweisen hin, die Verletzungs- oder Lebensgefahr
bergen.
VORSICHT: Vorsichtshinweise weisen auf Situationen oder
Vorgehensweisen hin, die zu Schäden an
Ausrüstungskomponentenoder anderenGegenständenoderzum
zeitweisen Ausfall wichtiger Komponenten in der
Arbeitsumgebung führen können.
Weist auf eine gefährliche Hochspannung im Gerätegehäuse hin,
die stark genug sein kann, um eine Stromschlaggefahr darzustellen.

20 K2 Solo Media Server Service Manual 09 April 2010
Safety Summaries
Warnungen
Die folgenden Warnungen weisen auf Bedingungen oder Vorgehensweisen hin, die
Verletzungs- oder Lebensgefahr bergen:
Gefährliche Spannungen oder Ströme – Schalten Sie den Strom ab, und entfernen Sie
ggf. die Batterie, bevor sie Schutzabdeckungen abnehmen, löten oder Komponenten
austauschen.
Servicearbeiten nicht alleine ausführen – Führen Sie interne Servicearbeiten nur aus,
wenn eine weitere Person anwesend ist, die erste Hilfe leisten und
Wiederbelebungsmaßnahmen einleiten kann.
Schmuck abnehmen – Legen Sie vor Servicearbeiten Schmuck wie Ringe, Uhren und
andere metallische Objekte ab.
Keine offen liegenden Leiter berühren – Berühren Sie bei eingeschalteter Stromzufuhr
keine offen liegenden Leitungen, Komponenten oder Schaltungen.
Richtiges Netzkabel verwenden – Verwenden Sie nur das mitgelieferte Netzkabel oder
ein Netzkabel, das den Spezifikationen für dieses Produkt entspricht.
Gerät erden – Schließen Sie den Erdleiter des Netzkabels an den Erdungskontakt an.
Gerät nur mit angebrachten Abdeckungen und Gehäuseseiten betreiben – Schalten Sie
dieses Gerät nicht ein, wenn die Abdeckungen oder Gehäuseseiten entfernt wurden.
Richtige Sicherung verwenden – Verwenden Sie nur Sicherungen, deren Typ und
Nennwert den Spezifikationen für dieses Produkt entsprechen.
Gerät nur in trockener Umgebungverwenden – Betreiben Sie das Gerät nicht in nassen
oder feuchten Umgebungen.
Gerät nur verwenden, wenn keine Explosionsgefahr besteht – Verwenden Sie dieses
Produkt nur in Umgebungen, in denen keinerlei Explosionsgefahr besteht.
Weist darauf hin, dass der Benutzer, Bediener oder
Servicetechniker wichtige Bedienungs-, Wartungs- oder
Serviceanweisungen in den Produkthandbüchern lesen sollte.
Dies ist eine Aufforderung, beim Wechsel von Sicherungen auf
deren Nennwert zu achten. Die im Text angegebene Sicherung
muss durch eine Sicherung ersetzt werden, die die angegebenen
Nennwerte besitzt.
Weist auf eine Schutzerdungsklemme hin, die mit dem
Erdungskontakt verbunden werden muss, bevor weitere
Ausrüstungskomponenten angeschlossen werden.
Weist auf eine externe Schutzerdungsklemme hin, die als
Ergänzung zu einem internen Erdungskontakt an die Erde
angeschlossen werden kann.
Weist darauf hin, dass es statisch empfindliche Komponenten gibt,
die durch eine elektrostatische Entladung beschädigt werden
können. Verwenden Sie antistatische Prozeduren, Ausrüstung und
Oberflächen während der Wartung.