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www. ge f e n too lb o x. co m H D P a tte rn Sig nal Ge n e ra to r G T B- H D-S I GGEN Us e r Manual Gefen.
T echnical Support : T elephone (818) 772-9100 (800) 545-6900 Fax (818) 772-9120 T echnical Support Hours: 8:00 AM to 5:00 PM Monday through Friday , Paci fi c T ime Write T o: Gefen, LLC c/o Customer Service 20600 Nordhoff St Chatsworth, CA 9131 1 www .
CONTENTS 1 Introduction 2 Operation Notes 3 Features 4 T op Panel Layout 5 T op Panel Descriptions 6 Back Panel Layout 7 Back Panel Descriptions 8 Control Panel Layout 9 Control Panel Descriptions 1 1.
CONTENTS 46 Unique Patterns 46 ColorSetting Pattern 48 Motion Pattern 50 Favorite T iming 51 Favorite Pattern 52 EDID Read / Write 54 T ranslating EDID (V erbose Form) 58 Generating the EDID Checksum .
1 INTRODUCTION Congratulations on your purchase of the GefenT oolBox HD Pattern Signal Generator . Y our complete satisfaction is very important to us. About Gefen Gefen delivers innovative, progressive computer and electronics add-on solutions that harness integration, extension, distribution, and conversion technologies.
2 READ THESE NOTES BEFORE INST ALLING OR OPERA TING THE GEFENTOOLBOX HD P A TTERN SIGNAL GENERA TOR • The GefenT oolBox HD Pattern Signal Generator can be controlled using a software application and RS-232. Download this application from the Gefen Web site at: http://www .
3 FEA TURES Features • Multi-format video output for SD and HD video up to 1080p • PC/HD resolutions up to UXGA / WUXGA (1920 x 1200) • 39 timings, 41 patterns, and 4 data analysis patterns • Supports RGB 4:4:4, YCbCr 4:4:4, and YCbCr 4:4:2 color spaces • Supports NTSC and P AL frame rates • 2 CH, 5.
4 T OP P ANEL LA YOUT 2 3 1 T op Panel.
5 1 LCD Display Displays pattern and timing information in addition to other functions used by the Signal Generator . 2 IR Window Receives signals from the IR Remote Control unit.
6 BACK P ANEL LA YOUT Back Panel 1 2 3 4 5 6 7 8 9 10 11 12.
7 BACK P ANEL DESCRIPTIONS 1 Overscan Button By default, the GefenT oolBox HD Pattern Signal Generator is set to underscan mode. If the video signal does not fi ll the entire display , press this button once to switch to overscan mode. Press the Overscan button a second time to return to underscan mode.
8 CONTROL P ANEL LA YOUT Control Panel 2 4 7 8 10 13 14 17 18 20 22 24 26 3 5 6 9 12 15 16 19 21 23 25 11 1.
9 CONTROL P ANEL DESCRIPTIONS Control Panel 1 Timing (Down) Cycles backward through the list of timings. 2 Timing (Up) Cycles forward through the list of timings. 3 Pattern (Down) Cycles backward through the list of patterns. 4 Pattern (Up) Cycles forward through the list of patterns.
10 CONTROL P ANEL DESCRIPTIONS 14 Option Indicator This LED will glow bright green when the Signal Generator is in Option mode. 15 HDCP On / Off Indicator This LED will glow bright green when HDCP content is being sent from the Signal Generator . 16 HDCP Button Enables / disables HDCP on the output.
CONNECTING THE HD P A TTERN SIGNAL GENERA TOR 11 How to Connect the GefenT oolBox HD Pattern Signal Generator 1. Connect an HDMI cable from the GefenT oolBox HD Pattern Signal Generator to the HDTV Display . 2. Connect an optional external audio source to the HD Pattern Signal Generator using an optical cable or RCA cables.
12 OPERA TING THE HD P A TTERN SIGNAL GENERA T OR Display Window The Display Window of the GefenT oolBox HD Pattern Signal Generator is a 16-character , 2-line display .
13 OPERA TING THE HD P A TTERN SIGNAL GENERA T OR Pattern Buttons T o change the pattern, use the ▲ and ▼ Pattern buttons. The ▲ button will move forward through the patterns (see the pages 14 - 35 for a list of available patterns). Use the ▼ button to move backward through the patterns.
P A TTERN SUMMAR Y 14 Purity Pattern 01 - Pattern 08 (P01 - P08) Press the [OPTION] button to switch between Full Screen and Windowed format. P01 White P02 Blue P03 Red P04 Magenta P05 Green P06 Cyan P07 Y ellow P08 Black Red (P03) and Green (P05) are often used to check color purity .
15 P A TTERN SUMMAR Y Green (P05) provides a color purity check for display devices that use three in-line guns. The in-line con fi guration de fi nes guns which are positioned horizontally with the green gun located in the center (R-G-B). Blue (P02) is a complementary color .
16 P A TTERN SUMMAR Y When using Pattern 09 - Pattern 12, a black screen will be displayed, fi rst. Use the [OPTION] to enable to the pattern.
17 P A TTERN SUMMAR Y Color Bars Pattern 14 - Pattern 17 (P14 - P17) There are four different color bar patterns. Use the [OPTION] button on Pattern 14 (P14) and Pattern 16 (P16) to switch between 75 IRE (Option LED indicator OFF) and 100 IRE (Option LED indicator ON).
18 P A TTERN SUMMAR Y Black White Line Pattern 23 -Pattern 26 (P23 - P26) The vertical pattern serves as a test for the horizontal bandwidth and phase behavior of a color monitor . This pattern can also be used to verify the video ampli fi er and color temperature.
19 P A TTERN SUMMAR Y Pluge Pattern 27 - Pattern 31 (P27 - P31) Pluge (Picture line up) patterns are used to perform accurate and consistent line-up of the output signal (video). The concept behind Pluge patterns is to adjust the brightness control so that the fi rst bar is invisible, while the second bar remains visible.
20 P A TTERN SUMMAR Y Grid Pattern 32 - Pattern 33 (P32 - P33) Grid and cross patch patterns are mainly used for detecting corner convergence (“pin cushions”).
21 P A TTERN SUMMAR Y Circles Pattern 37 (P37) Produces a pattern with large circles on the screen. This pattern is primarily used for checking the overall geometry and linearity of the display . P37 CIRCLES EDID Pattern 38 (P38) Displays the EDID pattern screen.
22 P A TTERN SUMMAR Y When the EDID pattern is selected, the display will appear as follows: T o use the EDID pattern, follow the instructions below: 1 Press the [OPTION] button. 2 The EDID Analysis Menu will be displayed. The fi rst line of the menu will be highlighted in blue.
23 P A TTERN SUMMAR Y • HDMI / DVI Out Reads the EDID of the sink (display , A/V receiver , etc) connected to the HD Pattern Signal Generator . • HDMI / DVI In Reads the built-in EDID of the HD Pattern Signal Generator . • VGA PC / HD Out Reads the EDID of the display connected to the VGA port of the HD Pattern Signal Generator .
24 P A TTERN SUMMAR Y The HD Pattern Signal Generator will display the V endor / Product Id EDID information on the screen. Y our V endor / Product Id EDID information will most likely differ from the.
25 P A TTERN SUMMAR Y Audio Pattern 39 (P39) This pattern displays the audio information of the connected source device, such as the number of audio channels, sampling rate, and I 2 S (Intergrated Interchip Sound) bus data.
26 P A TTERN SUMMAR Y In the example above, the Audio Pattern is shown using the external 7.1 channel audio input. The Audio Input Selection button is used to change the audio input type. T ext that is highlighted in yellow indicates that the value may be changed.
27 P A TTERN SUMMAR Y External Optical Audio Input Changing the audio input to EXT OPTICAL, using the Audio Input Selection button will produce the following screen: In the example above, since no optical input was used, the Source Format Detection displays None .
28 P A TTERN SUMMAR Y The I 2 S data line option is only present when the HD Pattern Signal Generator is set to 5.1 CH or 7.1 CH audio. In 2 CH mode, the I 2 S bus can only be enabled or disabled (muted). Use the [F A V] button to change the I 2 S bus options.
29 P A TTERN SUMMAR Y HDCP Pattern 40 (P40) This pattern displays HDCP information such as handshaking and link integrity test. If the sink (output device) is a repeater , both the B KSV and B KSv’ are displayed.
30 P A TTERN SUMMAR Y Once HDCP has been enabled, the screen will appear similar to the following: The HDCP pattern provides a full three phase authentication: Phase 1: a The HD Pattern Signal Generator writes a 64-bit random number ( A N ) to the sink / receiver (Rx).
31 P A TTERN SUMMAR Y In the example above, the HDCP authentication process is successful. Note that the sink (Rx) was not identi fi ed as a repeater . For a display , this is normal. A repeater is de fi ned as an active device which has one or more HDMI inputs and one or more HDMI outputs that work with HDCP .
32 P A TTERN SUMMAR Y When a valid video input signal is detected, the In T iming pattern will display information similar to the following: Press the [OPTION] button to perform a hot-plug (HPD) event. T riggering an HPD event is the similar to disconnecting and reconnecting the input source.
As with the In T iming pattern (P42), if a valid signal is not detected on the input, the top line will display No Signal. Press the [OPTION] button to trigger an HPD event. P44 In Audio The In Audio pattern provides audio information, including sampling rate, bit depth, audio encoding, and the number of audio channels.
34 P A TTERN SUMMAR Y System Setup Pattern 45 (P45) Built-in Rx EDID setup, IR remote address setup. P45 System Setup When the System Setup pattern is selected, the display will appear as follows: Press the [OPTION] button to bring up the following screen: Press [OPTION] to do system setup System Setup ► Copy OUT EDID to IN EDID.
35 P A TTERN SUMMAR Y There are four options under the System Setup pattern. Use the ▲ or ▼ buttons to select the desired option. Press the [OPTION] button to accept the selection. 1 Copy OUT EDID to IN EDID Copies the EDID from the device/display connected to the HD Pattern Signal Generator and stores it in a local buffer on the unit.
36 TIMING SUMMAR Y The following table lists the available graphic and video timings used by the HD Pattern Signal Generator . Timing Number Timing T01 640 x 480 @ 60 Hz T02 640 x 480 @ 72 Hz T03 640 .
37 TIMING SUMMAR Y Timing Number Timing T31 720 x 576i @ 50 Hz T32 720 x 576p @ 50 Hz T33 1280 x 720p @ 50 Hz T34 1920 x 1080i @ 50 Hz T35 1920 x 1080p @ 50 Hz T36 1920 x 1080p @ 23 Hz T37 1920 x 1080p @ 24 Hz T38 1366 x 768 @ 60 Hz T39 1366 x 768 @ 50 Hz Analog PC output (VGA) only supports VESA (VGA - WUXGA) timings.
38 HD-SIGGEN Software The HD Pattern Signal Generator can be controlled via RS-232 on a PC running Windows®, using the HD-SIGGEN software. The program is available for down- load on the Gefen Web site: http://www .gefen.com/kvm/support/download.jsp Installing the Software 1.
39 4. The installer will begin by copying the required installation fi les, to the hard drive: 5. After the required fi les have been copied to the hard drive, the installer Wel- come screen will appear: Click the OK button to continue with the installation.
40 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 6. The destination directory can be changed. The default installation directory for Windows 7® is C:Program Files(x86)HD-SIGGEN . For other ver- sions of the Windows® operating system, the default installation location will be C:Program FilesHD-SIGGEN .
41 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 8. After the installer has successfully completed the installation process, the following message box will be displayed: Click the OK button to dismiss the message box and exit the installer .
42 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Running the HD Pattern Signal Generator Software 1. Launch the HD Pattern Signal Generator Software by clicking on the application icon in the Windows® Sta.
43 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE After the HD Pattern Signal Generator is launched, the following screen will be displayed: 2. Select the COM port from the pull-down list. COM port 1 is selected by default. 3. Click the Connect button to initialize the connection between the software and the HD Pattern Signal Generator .
44 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Selecting the Timing 1. Use the T iming Select button to select the timing / resolution of the output signal. 2. Press the SET button to set the timing. After changing a timing, pattern, the output format, or toggling HDCP , make sure to press the Refresh button on the left side of the window .
45 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Selecting the Pattern 1. Use the Pattern Select button to select the desired pattern. 2. Press the SET button to enable the pattern. Click the SET button to enable the pattern A “Link Error” message caused by the Refresh button not being pressed after connecting to the HD Pattern Signal Generator .
46 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Unique Patterns Pattern 13 (ColorSetting) and Pattern 41 (Motion) can be selected from the top panel buttons on the HD Pattern Signal Generator . However , they provide addi- tion parameters which can only be modi fi ed using the HD-SIGGEN software.
47 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 3. Adjust the Red, Green, Blue, and Grey sliders to render the desired color . 4. Press the SET button to upload the current settings to the ColorSetting pattern.
48 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Unique Patterns Pattern 13 (ColorSetting) and Pattern 41 (Motion) can be selected from the top panel buttons on the HD Pattern Signal Generator . However , they provide addi- tion parameters which can only be modi fi ed using the HD-SIGGEN software.
49 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 3. A custom string, up to 12 characters in length, can be entered in the Custom String fi eld. 4. Click the Upload button to update the HD Pattern Signal Generator with the new pattern. 5. Click the SET button to save the existing settings to the Motion pattern.
50 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Favorite Timing A list of favorite timings can be assembled and stored in the HD Pattern Sig- nal Generator . The [F A V] button, on the front panel, can then be used to cycle through the list of timings that is created.
51 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Favorite Pattern A list of favorite patterns can be assembled and stored in the HD Pattern Signal Generator . The [F A V] button, on the front panel, can then be used to cycle through the pattern list that is created.
52 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Source selection buttons EDID Read / Write The HD Pattern Signal Generator has the ability to read EDID data. EDID data can also be saved, loaded, written, erased, compared, interpreted, and summed. Each of these features will be covered in this section.
53 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE In this example, the EDID is being read from the display connected to the HD Pattern Signal Generator . 1. Click the READ button on the READ Panel. The READ and COMP (compare) functions are only available under the READ panel.
54 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 2. If the EDID is read successfully , the EDID will appear in the READ Panel: T ranslating the EDID After the EDID has been read, it can be translated into .
55 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE The T ranslate [Read] EDID screen: Clicking on the one of the items in the panel on the left, will display the information in the panel on the right.
56 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Click the [+] button to expand any section where additional information is present. In the example below , the [+] button has changed to a [-] symbol after .
57 The EDID Report window is shown below . Click the Save button to save the fi le in .TXT format. Click the Exit button to return to the T ranslate EDID screen.
58 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Generating the EDID Checksum Once an EDID has been read or loaded into the HD Pattern Signal Generator , a checksum can be generated. 1. Read or load an EDID fi le into the HD Pattern Signal Generator . 2. Click the SUM button under the READ panel.
59 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 3. The EDID Checksum dialog will be displayed. Select the method of how unused bytes will be calculated into the checksum by clicking either the 0x00 or 0xFF radio button. 4. Adjust the EEPROM size, if necessary , by selecting it from the EEPROM Size drop-down list: 256, 512, 1024, or 2048 bytes.
60 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 5. Click the CHECKSUM button to generate the EDID checksum. By default, the checksum will be restricted to the lower 4 digits. This feature can be disabled unchecking the Show lower 4 digits of checksum only box.
61 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Saving an EDID to a File Any EDID can be saved to a fi le, once it has been read into the HD Pattern Signal Generator . 1. Once an EDID has been read, click the SA VE button. Click the SA VE button to save the EDID to a fi le.
62 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 2. The Save EDID fi le dialog box will be displayed: 3. Select a name for the EDID fi le and type it in the File name box. The fi le can be saved as either a .hex fi le or a .bin fi le. Select the fi le type from the Save as type pull-down list.
63 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 4. Select the directory where the EDID fi le will be saved and click the Save but- ton on the dialog box. By default, the EDID fi le will be saved in the working directory of the HD Pattern Signal Generator software directory .
64 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Clearing the EDID from Memory 1. Click the Clear button to clear the EDID from memory . If an EDID is loaded (OPEN) under the WRITE panel, use the CLEAR button to clear it from memory .
65 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Loading an EDID from a File An EDID fi le in binary (.bin) format or in text format (.hex) can be loaded into the HD Pattern Signal Generator . 1. Click the OPEN button under the WRITE panel. If necessary , refer to page 61 on how to save an EDID to a fi le.
66 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE 3. The EDID fi le will be loaded into the HD Pattern Signal Generator and dis- played in the WRITE panel. In the example below , an EDID has been read using the HD Pattern Sig- nal Generator software (using the READ function) and an EDID has been loaded from a fi le using the OPEN function.
67 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Comparing EDID Data The HD Pattern Signal Generator software can compare two EDID data structures. One EDID is read from a sink (display , A/V receiver , etc) and the other is loaded into the HD Pattern Signal Generator software using the OPEN function.
68 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE If the two EDID data structures are identical, then a message will be displayed indicating that the compare process has passed: Click the OK button to return to the EDID Read / Write screen. If there are differences in the two EDID data structures, then the compare pro- cess will fail.
69 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Writing EDID to a Sink After an EDID has been read from another source or loaded from a fi le, the EDID can be written to the sink connected to the output of the HD Pattern Signal Generator . Overwriting the EDID of a sink device may cause unwanted results.
70 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Erasing the EDID from a Sink The ERASE function will erase the EDID of a sink device. Be sure to save a copy of the sink’s EDID before performing the ERASE function. This will allow the sink’ s EDID to be restored if necessary .
71 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Opening Recent EDID Files The HD Pattern Signal Generator software keeps a record of the last ten fi les which were opened or saved. T o access the most recently used fi les, do the following: 1. Click the Pre-F button in the WRITE panel.
72 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Autorun Con fi guration list Uploads current Autorun list Autorun Con fi guration The Autorun Con fi guration option allows custom programming of timings and patterns used by the Autorun Demonstration mode (pressing the AUTO button on the front panel): 1.
73 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE An existing timing and pattern set can be replaced by clicking (highlighting) the set, selecting the new timing and new pattern from the drop-down list boxes, then pressing the Add / Replace button. Use the Delete button to remove a timing / pattern set from the Autorun Con fi guration llist.
74 HD P A TTERN SIGNAL GENERA TOR SOFTW ARE Getting the Hardware and Firmware V ersion Press About button on the top portion of the HD Pattern Signal Generator software. The About screen will be displayed, showing the software and fi rmware versions: 2.
75 W ALL MOUNTING INSTRUCTIONS The GefenT oolBox HD Pattern Signal Generator should be mounted vertically in a wall or cabinet with wood/drywall screws as shown in the diagram above.
76 GLOSSAR Y ADC Apple Display Connector . The ADC interface is a proprietary interface developed by Apple that combines analog and digital signals, USB, and power in a single cable. CA T -5 Category-5 cable, commonly known as Cat-5, is an unshielded twisted pair type cable designed for high signal integrity .
77 GLOSSAR Y DDWG An acronym for Digital Display Working Group. DDWG are the creators of the DVI speci fi cation. Dolby Digital® This is a digital surround sound technology used in movie theaters and upscale home theater systems that enhances audio.
78 GLOSSAR Y HDCP High-Bandwidth Digital Content Protection. Created by Intel, HDCP is used with HDTV signals over DVI and HDMI connections and on D-Theater D-VHS recordings to prevent unauthorized duplication of copy written material.
79 GLOSSAR Y IEEE 1394a A type of cabling technology for transferring data to and from digital devices at high speed. Some professional digital cameras and memory card readers connect to the computer over FireWire. FireWire card readers are typically faster than those that connect via USB.
80 GLOSSAR Y NTSC NTSC is an acronym for National T elevision Systems Committee. NTSC is the current analog television standard used in North America, most of South America, Burma, South Korea, T aiwan, Japan, and the Philippines. PA L An acronym for Phase Alternate Line.
81 GLOSSAR Y SDI SDI is the acronym for Serial Digital Interface. SDI is used for standard de fi nition applications (SMPTE 259M) with bit rates of 270 Mb/s, 360 Mb/s, 143 Mb/s, and 177 Mb/s. 270 Mb/s is the most common. Bit rates below 270 Mb/s were designed for the digital transmission of composite (NTSC or P AL) video.
82 GLOSSAR Y USB USB is an acronym for Universal Serial Bus. USB can connect computer peripherals such as mice, keyboards, digital cameras, printers, personal media players, fl ash drives, Network Adapters, and external hard drives. For the most part, USB has made interfaces such as serial and parallel ports obsolete.
83 SPECIFICA TIONS Maximum Pixel Clock............................................................................... 165 MHz Input Video Signal .............................................................................. 1.2 volts p-p Input DDC Signal .
W ARRANTY 84 Gefen warrants the equipment it manufactures to be free from defects in material and workmanship. If equipment fails because of such defects and Gefen is noti fi ed within two (2) years .
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Rev A4 Pb This product uses UL listed power supplies. 20600 Nordhoff St., Chatsworth CA 91311 1-800-545-6900 818-772-9100 fax: 818-772-9120 www .gefentoolbox.
Een belangrijk punt na aankoop van elk apparaat Gefen GTB-HD-SIGGEN (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Gefen GTB-HD-SIGGEN heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Gefen GTB-HD-SIGGEN vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Gefen GTB-HD-SIGGEN leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Gefen GTB-HD-SIGGEN krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Gefen GTB-HD-SIGGEN bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Gefen GTB-HD-SIGGEN kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Gefen GTB-HD-SIGGEN . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
