Kramer 841 User manual

Kramer Electronics, Ltd.
USER MANUAL



Model:
841
Pattern Generator

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
3 Overview 2
4 Your 841 Pattern Generator 3
5 Using Your 841 Pattern Generator 5
5.1 Connecting Your 841 Pattern Generator 5
5.2 Operating Your 841 Pattern Generator 6
5.3 Interpreting Each Pattern Number Definition 7
5.4 Power Considerations 8
6 Technical Specifications 8
Figures
Figure 1: 841 Pattern Generator 3
Figure 2: Connecting the 841 Pattern Generator 5
Tables
Table 1: 841 Pattern Generator Features 4
Table 2: Selecting Output Resolutions 4
Table 3: Pattern Number Definitions 7
Table 4: 841 Technical Specifications 8

Introduction
1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast
range of problems that confront the video, audio, presentation, and
broadcasting professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
1,000-plus different models now appear in 11 groups
1
that are clearly
defined by function.
Thank you for purchasing the Kramer TOOLS
®
841 Pattern Generator. It is
ideal for testing and adjusting flat panel LCD displays, projectors, plasma
screens and cables, as well as for testing the refresh rates of LCD displays
by using the motion patterns.
Each package includes the following items:
The 841 Pattern Generator
Power supply (5V DC)
This user manual
2
2 Getting Started
We recommend that you:
Unpack the equipment carefully and save the original box and
packaging materials for possible future shipment
Review the contents of this user manual
Use Kramer high-performance high-resolution cables
3
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems;
GROUP 4: Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products;
GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity;
GROUP 10: Accessories and Rack Adapters; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
2
3 Overview
The 841 is a high-quality pattern generator with 31 preset patterns that
supports the following output resolutions:
SVGA (800x600) XGA (1024x768)
SXGA (1280x1024) UXGA (1600x1200)
WXGA (1280x800) WSXGA (1680x1050)
WUXGA (1920x1200) WXGA+ (1440x900)
SXGA+ (1400x1050) 1920x1080
1280x720 1152x864
1280x960 1920x1200 reduced blanking
All the resolutions are 60Hz progressive.
The 841 features:
A 15-pin HD output connector
Seven control buttons for selecting the resolution and the pattern
A 7-segment display that indicates the pattern number
An on board EEPROM that saves the last setting used
Rechargeable battery for field operation
To achieve the best performance:
Use only good quality connection cables
1
to avoid interference,
deterioration in signal quality due to poor matching, and elevated
noise levels (often associated with low quality cables).
Avoid interference from neighboring electrical appliances that
may adversely influence signal quality and position your Kramer
841 away from moisture, excessive sunlight and dust
Caution – No operator-serviceable parts inside unit.
Note – Remove the plastic protective ring from the
POWER ON/OFF pushbutton switch before use.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
2
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com
2 For example, part number 2535-052002

Your 841 Pattern Generator
3
4 Your 841 Pattern Generator
Figure 1 and Table 1 define the 841 Pattern Generator. Table 2 explains
how to select each output resolution:
Figure 1: 841 Pattern Generator

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your 841 Pattern Generator
4
Table 1: 841 Pattern Generator Features
# Feature Function
1 5V DC +5V DC connector for powering the unit
2 OUTPUT 15-pin HD
Connector
Connects to the VGA acceptor
3 POWER ON/OFF
Pushbutton Switch
1
Press in switch to turn the unit on, press and release to turn the unit off
4 ON LED Illuminates green when the unit is powered on
5 CHG LED Illuminates blue when the unit is charging, turns off when fully charged
6 SVGA Button
2
Selects SVGA (800x600) when pressed
Selects 1280x800 when pressed together with the SHIFT (ON) button
Selects 1400x1050 when pressed together with the XGA button
Selects 1440x900 when pressed together with the XGA button with the SHIFT (ON) button
7 XGA Button
2
Selects XGA (1024x768) when pressed
Selects 1280x720 when pressed together with the SHIFT (ON) button
Selects 1400x1050 when pressed together with the SVGA button
Selects 1440x900 when pressed together with the SVGA button with the SHIFT (ON) button
Selects 1280x960 when pressed together with the SXGA button
Selects 1920x1080 when pressed together with the SXGA button with the SHIFT (ON) button
8 SXGA Button
2
Selects SXGA (1280x1024) when pressed
Selects 1680x1050 when pressed together with the SHIFT (ON) button.
Selects 1280x960 when pressed together with the XGA button
Selects 1920x1080 when pressed together with the XGA button with the SHIFT (ON) button
Selects 1920x1200R when pressed together with the UXGA button
Selects 1152x864 when pressed together with the UXGA button with the SHIFT (ON) button
9 UXGA Button
2
Selects UXGA (1600x1200) when pressed
Selects 1920x1200 when pressed together with the SHIFT (ON) button
Selects 1920x1200R when pressed together with the SXGA button
Selects 1152x864 when pressed together with the SXGA button with the SHIFT (ON) button
10 SHIFT (ON) Button
2
Illuminates when active and selects the resolutions written above the buttons
PATTERN + Button Press to advance to the next pattern
number
11
PATTERN – Button Press to go back to the previous pattern
number
Press both buttons together to activate the
AUTO function and cycle through the 31
patterns
12 7-segment Display Shows the 2-digit pattern number (from 00 to 30) and LO when the battery is low
Table 2: Selecting Output Resolutions
To select: Press: To select: Press:
SVGA SVGA 1400x1050 SVGA + XGA
XGA XGA 1440x900 SVGA + XGA + SHIFT (ON)
SXGA SXGA 1280x960 XGA + SXGA
UXGA UXGA 1920x1080 XGA + SXGA + SHIFT (ON)
1280x800 SVGA + SHIFT (ON) 1920x1200R SXGA + UXGA
1280x720 XGA + SHIFT (ON) 1152x864 SXGA + UXGA + SHIFT (ON)
1680x1050 SXGA + SHIFT (ON)
1920x1200
3
UXGA + SHIFT (ON)
1 Remove the plastic protective ring from the POWER ON/OFF pushbutton switch before use
2 Illuminates when pressed
3 Reduced blanking

Using Your 841 Pattern Generator
5
5 Using Your 841 Pattern Generator
This section describes how to:
Connect the 841 Pattern Generator (see section 5.1)
Operate the 841 Pattern Generator (see section 5.2)
Interpret each pattern number definition (see section 5.3)
5.1 Connecting Your 841 Pattern Generator
To connect the 841 Pattern Generator, do the following
1
:
1. Connect the OUTPUT connector to a VGA acceptor, for example, a flat-
panel LCD display (as Figure 2 illustrates), or a projector or plasma screen.
2. Connect the 5V DC power adapter (wall transformer) to the 5V DC socket
and connect the transformer to the mains electricity.
Figure 2: Connecting the 841 Pattern Generator
1 Switch OFF the power on the VGA acceptor before connecting it to your 841. After connecting your 841, switch on its
power and then switch on the power on the VGA acceptor

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using Your 841 Pattern Generator
6
5.2 Operating Your 841 Pattern Generator
Several patterns (see Table 3) are programmed into the 841 Pattern
Generator, to test various aspects in the flat panel LCD display, projector,
plasma screen or cable. For example, the 841 tests:
A flat panel LCD display
1
by testing that all pixels illuminate with the
correct amounts of light, linearity, and high frequency response (use
pattern 10)
A plasma screen, by checking the black level of the plasma monitor
(use pattern 00 to generate the black screen)
A projector, by verifying that the colors display as required, tuning the
size and focus of the picture (use pattern 02)
A cable, by checking the quality
2
of the colors, both separately and
together using the following patterns:
02 –100% Color bar 04 – Red 05 – Green
06 – Blue 07 – Yellow 08 – Cyan 09 – Magenta
To operate the 841 Pattern Generator, do the following:
1. Select the desired resolution as explained in Table 2.
2. Press the appropriate PATTERN button (PATTERN + to display the next
pattern or PATTERN – to display the previous pattern) to generate the
required pattern.
The 7-segment display shows the selected pattern number.
3. Observe the output on your flat panel LCD display, projector, or plasma
screen.
4. To activate the AUTO function that cycles through all the patterns
automatically, press and hold the PATTERN + and PATTERN – buttons
together for about 3 seconds.
1 That is built on a matrix of pixels, each pixel consisting of three components: R, G and B
2 For example, a fuzzy red color in the picture indicates a problem with the red wire

Using Your 841 Pattern Generator
7
5.3 Interpreting Each Pattern Number Definition
Table 3 describes each of the 31 different patterns:
Table 3: Pattern Number Definitions
PATTERN
NUMBER
DEFINITION
00 Black screen
01 75% saturated color bar
02 100% saturated color bar
03 Grayscale bar
04 Red screen
05 Green screen
06 Blue screen
07 Yellow screen
08 Cyan screen
09 Magenta screen
10 White screen
11 Gray screen
12 Red, green, blue ramps
13 White crosshatch on black background
14 Red crosshatch on green background
15 Red crosshatch on blue background
16 White squares
17 White dots
18 Active picture border
19
Static
Centered round target and active picture border
20 Moving vertical line
21 Moving horizontal line
22 Aperture moving over colored background
23 Aperture moving over color bar background
24 Moving red ramp
25 Moving green ramp
26
Motion
Moving blue ramp
27 Bounce
28 100/0 Vertical Split
29 100/0 Horizontal Split
30
Static
Chess board

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
8
5.4 Power Considerations
The 841 can be operated while connected to its 5V DC power supply. It also
contains a rechargeable battery for use during field work without a power
supply. Note the following:
Power/Charge Indications – When the power switch is operated,
the unit turns on and the POWER LED lights green. Whenever the
unit is plugged into a 5V DC power adapter the battery charges. The
CHARGE LED lights blue while the unit is charging and the
CHARGE LED turns off when the battery is fully charged
Charge Capacity – The 841 operates for approximately 5 hours at
the highest resolution on a full charge. Lower resolutions may last
longer
Low Charge Indication – When the charge in the battery is about to
run out, LO appears in the display. When the display begins to flash
the pattern number then LO (for example, 30 – LO – 30 – LO), about
5 minutes of charge remain
Charging Times – The battery charges from 0% to 80% in about 1.5
hours and 0% to 100% in about 2.7 to 3 hours. A fully discharged
battery (when charged for the first time or after one month of non-
use) must be charged for 3 hours
Emergency Charge – A fully exhausted battery can be charged for 5
minutes to provide about 5 minutes of emergency operation
6 Technical Specifications
The 841 technical specifications are shown in Table 4:
Table 4: 841 Technical Specifications
1
OUTPUT: 1 VGA, RGBHV on a 15-pin HD connector
OUTPUT
RESOLUTIONS:
SVGA (800x600), XGA (1024x768), SXGA (1280x1024), UXGA (1600x1200),
WXGA (1280x800), WSXGA (1680x1050), WUXGA (1920x1200), WXGA+
(1440x900), SXGA+ (1400x1050), 1920x1080, 1280x720, 1152x864, 1280x960,
1920x1200 (reduced blanking); all resolutions are 60Hz progressive
CONTROLS: Control buttons: PATTERN +, PATTERN –, UXGA, SXGA, XGA, SVGA,
SHIFT (ON)
LED INDICATORS: ON – green, CHARGE – blue
POWER SOURCE: 5V DC, 1.4A (charge + VGA), 1.0A (charge only)
BATTERY CAPACITY: 2.1Ah
DIMENSIONS: 12cm x 7.5cm x 2.5cm (4.7" x 0.98" x 2.95") W, D, H
WEIGHT: 0.3kg (0.66lbs)
ACCESSORIES: Power supply, mounting bracket
1 Specifications are subject to change without notice