Kramer VA-4 User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VA-4
Dual Channel Balanced Stereo Audio Amplifier

Introduction
i
Contents
1Introduction 1
2Getting Started 1
3Overview 1
4Your VA-4 Dual Channel Balanced Stereo Audio Amplifier 2
5Using the VA-4 3
5.1 Connecting a PC 4
6Technical Specifications 4
7Communication Protocol 5
Figures
Figure 1: VA-4 Dual Channel Balanced Stereo Audio Amplifier 2
Figure 2: Connecting the VA-4 Dual Channel Balanced Stereo Audio Amplifier 3
Figure 3: Connecting a PC without using a Null-modem Adapter 4
Tables
Table 1: Front Panel VA-4 Dual Channel Balanced Stereo Audio Amplifier Features 2
Table 2: Rear Panel VA-4 Dual Channel Balanced Stereo Audio Amplifier Features 3
Table 3: VA-4 Dual Channel Balanced Stereo Audio Amplifier Technical Specifications 4
Table 4: VA-4 Hex Codes for Gain Control (Attenuation) 6
Table 5: VA-4 Hex Codes for Gain Control (Amplification) 7

Introduction
1
1 Introduction
Dedication by Kramer Electronics since 1981, to the development and
manufacture of high quality video/audio equipment, makes the Kramer line
an integral part of the finest production and presentation facilities in the
world. In recent years, Kramer has redesigned and upgraded most of the line,
making the best even better! The Kramer line of professional video/audio
electronics is one of the most versatile and complete available, and is a true
leader in terms of quality, workmanship, price/performance ratio and
innovation. In addition to our high quality distribution amplifiers, we also
offer excellent switchers and matrices, remote controllers, processors,
interfaces and computer-related products.
Congratulations on purchasing your Kramer VA-4 Dual Channel Balanced
Stereo Audio Amplifier. The VA-4 is useful in applications where the gain in
the front-end or back-end of an audio device needs to be controlled, but the
device does not have such control. It is ideal for recording studios and
broadcast studios for on-line signal distribution. The package includes the
following items:
• VA-4 Dual Channel Balanced Stereo Audio Amplifier
• Null-modem adapter
• Windows®-based control software
• Power cord
• This user manual1and the Kramer concise product catalog/CD
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 cables2
3 Overview
The VA-4 is a dual channel balanced stereo audio amplifier using XLR
connectors for all audio inputs and outputs. In particular, the VA-4:
• Features a digitally controlled volume control function
1 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com/manuals.html
2 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com (click “Cables and Connectors”
in the Products section)

Your VA-4 Dual Channel Balanced Stereo Audio Amplifier
KRAMER ELECTRONICS, LTD.
2
• Uses high quality low distortion audio components, enabling transparent
processing of the audio signals
• Lets you control the audio gain of each channel via the front panel or via
RS-232
• Includes a bright 7-segment LED display on the front panel, showing the
current gain or attenuation setting
• Stores settings in the non-volatile memory upon shut down
Achieving the best performance means:
• Connecting only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching, and elevated
noise levels (often associated with low quality cables)
• Avoiding interference from neighboring electrical appliances that may
adversely influence signal quality and positioning your Kramer VA-4 away
from moisture, excessive sunlight and dust
4 Your VA-4 Dual Channel Balanced Stereo Audio Amplifier
Figure 1, Table 1 and Table 2 define the front and rear panels of the VA-4:
Figure 1: VA-4 Dual Channel Balanced Stereo Audio Amplifier
Table 1: Front Panel VA-4 Dual Channel Balanced Stereo Audio Amplifier Features
# Feature Function
1 POWER Switch Illuminated switch supplying power to the unit
2 - Button Press to decrease the level
3 + Button Press to increase the level
4 LEVEL 7-segment LED Display Shows the gain of the selected channel (in decibels)
5 SELECT Button Selects the stereo channel (1 or 2) being controlled using the
+ button and the - button
6 Channel 1 LED Illuminates when channel 1 is chosen via the SELECT button
7 Channel 2 LED Illuminates when channel 2 is chosen via the SELECT button

Using the VA-4
3
Table 2: Rear Panel VA-4 Dual Channel Balanced Stereo Audio Amplifier Features
# Feature Function
1 CH.1 IN LEFT and RIGHT XLR female Connectors Connects to the balanced stereo audio source 1
2 CH.2 IN LEFT and RIGHT XLR female Connectors Connects to the balanced stereo audio source 2
3 CH.1 OUT LEFT and RIGHT XLR male Connectors Connects to the balanced stereo audio acceptor 1
4 CH.2 OUT LEFT and RIGHT XLR male Connectors Connects to the balanced stereo audio acceptor 2
5 RS-232 DB 9F Port Connects to the PC or the Remote Controller
6 Power Connector with FUSE AC connector enabling power supply to the unit
5 Using the VA-4
To connect one or both channels of the VA-4 Dual Channel Balanced Stereo
Audio Amplifier, as Figure 2 illustrates, do the following1:
1. Connect a balanced stereo audio source (for example, a “set top box:
source 1”) to the left and right channel 1 IN XLR connectors.
2. Connect a balanced stereo audio source (“source 2”) to the left and right
channel 2 IN XLR connectors.
3. Connect the left and right channel 1 OUT XLR connectors to a balanced
stereo audio acceptor (“acceptor 1”).
4. Connect the left and right channel 2 OUT XLR connectors to a balanced
stereo audio acceptor (“acceptor 2”).
5. Connect a PC (or other control device) to the RS-232 DB 9F port, if
control via RS-232 is required (see section 5.1).
6. Connect the power cord to the mains electricity (not shown in Figure 2).
7. Select the stereo channel (1 or 2) by pressing the SELECT button, and set
the level using the + and – buttons (as required).
Figure 2: Connecting the VA-4 Dual Channel Balanced Stereo Audio Amplifier
1 Switch OFF the power on each device before connecting it to your VA-4. After connecting your VA-4, switch on its power
and then switch on the power on each device

Technical Specifications
KRAMER ELECTRONICS, LTD.
4
5.1 Connecting a PC
To connect a PC to the VA-4, using the Null-modem adapter provided with
the machine (recommended):
• Connect the RS-232 DB9 rear panel port on the VA-4 to the Null-modem
adapter and connect the Null-modem adapter with a 9 wire flat cable to the
RS-232 DB9 port on your PC
To connect a PC to the VA-4, without using a Null-modem adapter:
• Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel
port on the VA-4, as Figure 3 illustrates (depending on whether the PC has a
9-pin or 25-pin connector)
Figure 3: Connecting a PC without using a Null-modem Adapter
6 Technical Specifications
Table 3 includes the technical specifications:
Table 3: VA-4 Dual Channel Balanced Stereo Audio Amplifier Technical Specifications1
INPUTS: 2 balanced stereo, 2.9Vpp on female XLR connectors
OUTPUTS: 2 balanced stereo, on male XLR connectors
MAX. OUTPUT LEVEL: 14Vpp for GAIN=1; 26Vpp for GAIN=12.5 (maximum)
BANDWIDTH (-3dB): >100 kHz
S/N RATIO: 80dB@6dB Gain (unweighted)
CROSSTALK (all hostile): 74dB@1kHz; -68dB@20kHz
CONTROLS: Level Control and Channel Selection, Impedance selection
COUPLING: AC at output
AUDIO THD + NOISE: 0.02%@1kHz
AUDIO 2nd HARMONIC: 0.008%@1kHz
POWER SOURCE: 100 – 230VAC 50/60Hz 4.6VA
DIMENSIONS: 19-inch (W), 7-inch (D), 1U (H)
WEIGHT: 2.5 kg. (5.5 lbs.) approx.
ACCESSORIES: Power cord, Null modem adapter, Windows®-based control software
1 Specifications are subject to change without notice

Communication Protocol
5
7 Communication Protocol
The VA-4 is compatible with Kramer’s Protocol 20001(version 0.43). This
RS-232 / RS-485 communication protocol uses four bytes of information as
defined below.
For RS-232, a null-modem connection between the machine and controller is
used. The default data rate is 9600 baud, with no parity, 8 data bits and 1 stop
bit.
Table 4 lists the VA-4 Hex Codes for Gain Control (Attenuation), and Table
5 lists the VA-4 Hex Codes for Gain Control (Amplification). In addition, the
following commands are also valid:
1. To increment the gain of channel 1 (in steps of 1), send hex bytes 18 81
80 81. To decrement the gain of channel 1 (in steps of 1), send hex bytes
18 81 81 81.
2. To increment the gain of channel 2 (in steps of 1), send hex bytes 18 82
80 81. To decrement the gain of channel 2 (in steps of 1), send hex bytes
18 82 81 81.
3. To request the gain of channel 1, send hex codes 19 81 80 81. The
response will be as per Table 4 and Table 5, except that 59 will be sent
instead of the constant byte 16; and 7f instead of the constant byte 3f.
4. To request the gain of channel 2, send hex codes 19 82 80 81.
In Table 4 and Table 5:
• The dB column shows the machine’s gain value at the setting shown in
the LED column. The VA-4 has a gain resolution of 0.245dB (each step is
0.245dB)
• Hex codes are shown for channel # 1. For channel # 2, for 4 byte strings
change the 2nd byte from 81 to 82, and for 8 byte strings, change the 6th byte
from81 to82
For example, for gain with the LED showing –166 for channel 2, send 16 82
80 81; for the LED showing 26, send 3f 80 81 81 16 82 c0 81
1 See the Technical Support section of our Web site: http://www.kramerelectronics.com

Communication Protocol
KRAMER ELECTRONICS, LTD.
6
Table 4: VA-4 Hex Codes for Gain Control (Attenuation)
Gain (dB) LED Hex Codes Gain (dB) LED Hex Codes Gain (dB) LED Hex Codes
-40.7 -166 16 81 80 81 -27.0 -110 16 81 b8 81 -13.2 -54 16 81 f0 81
-40.4 -165 16 81 81 81 -26.7 -109 16 81 b9 81 -13.0 -53 16 81 f1 81
-40.2 -164 16 81 82 81 -26.5 -108 16 81 ba 81 -12.7 -52 16 81 f2 81
-39.9 -163 16 81 83 81 -26.2 -107 16 81 bb 81 -12.5 -51 16 81 f3 81
-39.7 -162 16 81 84 81 -26.0 -106 16 81 bc 81 -12.3 -50 16 81 f4 81
-39.4 -161 16 81 85 81 -25.7 -105 16 81 bd 81 -12.0 -49 16 81 f5 81
-39.2 -160 16 81 86 81 -25.5 -104 16 81 be 81 -11.8 -48 16 81 f6 81
-39.0 -159 16 81 87 81 -25.2 -103 16 81 bf 81 -11.5 -47 16 81 f7 81
-38.7 -158 16 81 88 81 -25.0 -102 16 81 c0 81 -11.3 -46 16 81 f8 81
-38.7 -157 16 81 89 81 -24.7 -101 16 81 c1 81 -11.0 -45 16 81 f9 81
-38.2 -156 16 81 8a 81 -24.5 -100 16 81 c2 81 -10.8 -44 16 81 fa 81
-38.0 -155 16 81 8b 81 -24.3 -99 16 81 c3 81 -10.5 -43 16 81 fb 81
-37.7 -154 16 81 8c 81 -24.0 -98 16 81 c4 81 -10.3 -42 16 81 fc 81
-37.5 -153 16 81 8d 81 -23.8 -97 16 81 c5 81 -10.0 -41 16 81 fd 81
-37.2 -152 16 81 8e 81 -23.5 -96 16 81 c6 81 -9.8 -40 16 81 fe 81
-37.0 -151 16 81 8f 81 -23.3 -95 16 81 c7 81 -9.6 -39 16 81 ff 81
-36.8 -150 16 81 90 81 -23.0 -94 16 81 c8 81 -9.3 -38 3f 80 81 81 16 81 80 81
-36.5 -149 16 81 91 81 -22.8 -93 16 81 c9 81 -9.1 -37 3f 80 81 81 16 81 81 81
-36.3 -148 16 81 92 81 -22.5 -92 16 81 ca 81 -8.8 -36 3f 80 81 81 16 81 82 81
-36.0 -147 16 81 93 81 -22.3 -91 16 81 cb 81 -8.6 -35 3f 80 81 81 16 81 83 81
-35.8 -146 16 81 94 81 -22.1 -90 16 81 cc 81 -8.3 -34 3f 80 81 81 16 81 84 81
-35.5 -145 16 81 95 81 -21.8 -89 16 81 cd 81 -8.1 -33 3f 80 81 81 16 81 85 81
-35.3 -144 16 81 96 81 -21.6 -88 16 81 ce 81 -7.8 -32 3f 80 81 81 16 81 86 81
-35.0 -143 16 81 97 81 -21.3 -87 16 81 cf 81 -7.6 -31 3f 80 81 81 16 81 87 81
-34.8 -142 16 81 98 81 -21.1 -86 16 81 d0 81 -7.4 -30 3f 80 81 81 16 81 88 81
-34.5 -141 16 81 99 81 -20.8 -85 16 81 d1 81 -7.1 -29 3f 80 81 81 16 81 89 81
-34.3 -140 16 81 9a 81 -20.6 -84 16 81 d2 81 -6.9 -28 3f 80 81 81 16 81 8a 81
-34.1 -139 16 81 9b 81 -20.3 -83 16 81 d3 81 -6.6 -27 3f 80 81 81 16 81 8b 81
-33.8 -138 16 81 9c 81 -20.1 -82 16 81 d4 81 -6.4 -26 3f 80 81 81 16 81 8c 81
-33.6 -137 16 81 9d 81 -19.8 -81 16 81 d5 81 -6.1 -25 3f 80 81 81 16 81 8d 81
-33.3 -136 16 81 9e 81 -19.6 -80 16 81 d6 81 -5.9 -24 3f 80 81 81 16 81 8e 81
-33.1 -135 16 81 9f 81 -19.4 -79 16 81 d7 81 -5.6 -23 3f 80 81 81 16 81 8f 81
-32.8 -134 16 81 a0 81 -19.1 -78 16 81 d8 81 -5.4 -22 3f 80 81 81 16 81 90 81
-32.6 -133 16 81 a1 81 -18.9 -77 16 81 d9 81 -5.1 -21 3f 80 81 81 16 81 91 81
-32.3 -132 16 81 a2 81 -18.6 -76 16 81 da 81 -4.9 -20 3f 80 81 81 16 81 92 81
-32.1 -131 16 81 a3 81 -18.4 -75 16 81 db 81 -4.7 -19 3f 80 81 81 16 81 93 81
-31.9 -130 16 81 a4 81 -18.1 -74 16 81 dc 81 -4.4 -18 3f 80 81 81 16 81 94 81
-31.6 -129 16 81 a5 81 -17.9 -73 16 81 dd 81 -4.2 -17 3f 80 81 81 16 81 95 81
-31.4 -128 16 81 a6 81 -17.6 -72 16 81 de 81 -3.9 -16 3f 80 81 81 16 81 96 81
-31.1 -127
227
16 81 a7 81 -17.4 -71 16 81 df 81 -3.7 -15 3f 80 81 81 16 81 97 81
-30.9 -126 16 81 a8 81 -17.2 -70 16 81 e0 81 -7.4 -30 3f 80 81 81 16 81 88 81
-30.6 -125 16 81 a9 81 -16.9 -69 16 81 e1 81 -7.1 -29 3f 80 81 81 16 81 89 81
-30.4 -124 16 81 aa 81 -16.7 -68 16 81 e2 81 -3.4 -14 3f 80 81 81 16 81 98 81
-30.1 -123 16 81 ab 81 -16.4 -67 16 81 e3 81 -3.2 -13 3f 80 81 81 16 81 99 81
-29.9 -122 16 81 ac 81 -16.2 -66 16 81 e4 81 -2.9 -12 3f 80 81 81 16 81 9a 81
-29.6 -121 16 81 ad 81 -15.9 -65 16 81 e5 81 -2.7 -11 3f 80 81 81 16 81 9b 81
-29.4 -120 16 81 ae 81 -15.7 -64 16 81 e6 81 -2.5 -10 3f 80 81 81 16 81 9c 81
-29.2 -119 16 81 af 81 -15.4 -63 16 81 e7 81 -2.2 -9 3f 80 81 81 16 81 9d 81
-28.9 -118 16 81 b0 81 -15.2 -62 16 81 e8 81 -2.0 -8 3f 80 81 81 16 81 9e 81
-28.7 -117 16 81 b1 81 -14.9 -61 16 81 e9 81 -1.7 -7 3f 80 81 81 16 81 9f 81
-28.4 -116 16 81 b2 81 -14.7 -60 16 81 ea 81 -1.5 -6 3f 80 81 81 16 81 a0 81
-28.2 -115 16 81 b3 81 -14.5 -59 16 81 eb 81 -1.2 -5 3f 80 81 81 16 81 a1 81
-27.9 -114 16 81 b4 81 -14.2 -58 16 81 ec 81 -1.0 -4 3f 80 81 81 16 81 a2 81
-27.7 -113 16 81 b5 81 -14.0 -57 16 81 ed 81 -0.7 -3 3f 80 81 81 16 81 a3 81
-27.4 -112 16 81 b6 81 -13.7 -56 16 81 ee 81 -0.5 -2 3f 80 81 81 16 81 a4 81
-27.2 -111 16 81 b7 81 -13.5 -55 16 81 ef 81 -0.2 -1 3f 80 81 81 16 81 a5 81

Communication Protocol
7
Table 5: VA-4 Hex Codes for Gain Control (Amplification)
Gain (dB) LED Hex Codes Gain (dB) LED Hex Codes
0 0 3f 80 81 81 16 81 a6 81 +11.0 45 3f 80 81 81 16 81 d3 81
+0.2 1 3f 80 81 81 16 81 a7 81 +11.3 46 3f 80 81 81 16 81 d4 81
+0.5 2 3f 80 81 81 16 81 a8 81 +11.5 47 3f 80 81 81 16 81 d5 81
+0.7 3 3f 80 81 81 16 81 a9 81 +11.8 48 3f 80 81 81 16 81 d6 81
+1.0 4 3f 80 81 81 16 81 aa 81 +12.0 49 3f 80 81 81 16 81 d7 81
+1.2 5 3f 80 81 81 16 81 ab 81 +12.3 50 3f 80 81 81 16 81 d8 81
+1.5 6 3f 80 81 81 16 81 ac 81 +12.5 51 3f 80 81 81 16 81 d9 81
+1.7 7 3f 80 81 81 16 81 ad 81 +12.7 52 3f 80 81 81 16 81 da 81
+2.0 8 3f 80 81 81 16 81 ae 81 +13.0 53 3f 80 81 81 16 81 db 81
+2.2 9 3f 80 81 81 16 81 af 81 +13.2 54 3f 80 81 81 16 81 dc 81
+2.5 10 3f 80 81 81 16 81 b0 81 +13.5 55 3f 80 81 81 16 81 dd 81
+2.7 11 3f 80 81 81 16 81 b1 81 +13.7 56 3f 80 81 81 16 81 de 81
+2.9 12 3f 80 81 81 16 81 b2 81 +14.0 57 3f 80 81 81 16 81 df 81
+3.2 13 3f 80 81 81 16 81 b3 81 +14.2 58 3f 80 81 81 16 81 e0 81
+3.4 14 3f 80 81 81 16 81 b4 81 +14.5 59 3f 80 81 81 16 81 e1 81
+3.7 15 3f 80 81 81 16 81 b5 81 +14.7 60 3f 80 81 81 16 81 e2 81
+3.9 16 3f 80 81 81 16 81 b6 81 +14.9 61 3f 80 81 81 16 81 e3 81
+4.2 17 3f 80 81 81 16 81 b7 81 +15.2 62 3f 80 81 81 16 81 e4 81
+4.4 18 3f 80 81 81 16 81 b8 81 +15.4 63 3f 80 81 81 16 81 e5 81
+4.7 19 3f 80 81 81 16 81 b9 81 +15.7 64 3f 80 81 81 16 81 e6 81
+4.9 20 3f 80 81 81 16 81 ba 81 +15.9 65 3f 80 81 81 16 81 e7 81
+5.1 21 3f 80 81 81 16 81 bb 81 +16.2 66 3f 80 81 81 16 81 e8 81
+5.4 22 3f 80 81 81 16 81 bc 81 +16.4 67 3f 80 81 81 16 81 e9 81
+5.6 23 3f 80 81 81 16 81 bd 81 +16.7 68 3f 80 81 81 16 81 ea 81
+5.9 24 3f 80 81 81 16 81 be 81 +16.9 69 3f 80 81 81 16 81 eb 81
+6.1 25 3f 80 81 81 16 81 bf 81 +17.2 70 3f 80 81 81 16 81 ec 81
+6.4 26 3f 80 81 81 16 81 c0 81 +17.4 71 3f 80 81 81 16 81 ed 81
+6.6 27 3f 80 81 81 16 81 c1 81 +17.6 72 3f 80 81 81 16 81 ee 81
+6.9 28 3f 80 81 81 16 81 c2 81 +17.9 73 3f 80 81 81 16 81 ef 81
+7.1 29 3f 80 81 81 16 81 c3 81 +18.1 74 3f 80 81 81 16 81 f0 81
+7.4 30 3f 80 81 81 16 81 c4 81 +18.4 75 3f 80 81 81 16 81 f1 81
+7.6 31 3f 80 81 81 16 81 c5 81 +18.6 76 3f 80 81 81 16 81 f2 81
+7.8 32 3f 80 81 81 16 81 c6 81 +18.9 77 3f 80 81 81 16 81 f3 81
+8.1 33 3f 80 81 81 16 81 c7 81 +19.1 78 3f 80 81 81 16 81 f4 81
+8.3 34 3f 80 81 81 16 81 c8 81 +19.4 79 3f 80 81 81 16 81 f5 81
+8.6 35 3f 80 81 81 16 81 c9 81 +19.6 80 3f 80 81 81 16 81 f6 81
+8.8 36 3f 80 81 81 16 81 ca 81 +19.8 81 3f 80 81 81 16 81 f7 81
+9.1 37 3f 80 81 81 16 81 cb 81 +20.1 82 3f 80 81 81 16 81 f8 81
+9.3 38 3f 80 81 81 16 81 cc 81 +20.3 83 3f 80 81 81 16 81 f9 81
+9.6 39 3f 80 81 81 16 81 cd 81 +20.6 84 3f 80 81 81 16 81 fa 81
+9.8 40 3f 80 81 81 16 81 ce 81 +20.8 85 3f 80 81 81 16 81 fb 81
+10.0 41 3f 80 81 81 16 81 cf 81 +21.1 86 3f 80 81 81 16 81 fc 81
+10.3 42 3f 80 81 81 16 81 d0 81 +21.3 87 3f 80 81 81 16 81 fd 81
+10.5 43 3f 80 81 81 16 81 d1 81 +21.6 88 3f 80 81 81 16 81 fe 81
+10.8 44 3f 80 81 81 16 81 d2 81 +21.8 89 3f 80 81 81 16 81 ff 81

KRAMER ELECTRONICS, LTD.
8
LIMITED WARRANTY
Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the
following terms.
HOW LONG IS THE WARRANTY
Labor and parts are warranted for three years from the date of the first customer purchase.
WHO IS PROTECTED?
Only the first purchase customer may enforce this warranty.
WHAT IS COVERED AND WHAT IS NOT COVERED
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered
by the warranty:
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the web site
www.kramerelectronics.com.
2. Any product, on which the serial number has been defaced, modified or removed.
3. Damage, deterioration or malfunction resulting from:
i) Accident, misuse, abuse, neglect, fire, water, lightning or other acts of nature
ii) Product modification, or failure to follow instructions supplied with the product
iii) Repair or attempted repair by anyone not authorized by Kramer
iv) Any shipment of the product (claims must be presented to the carrier)
v) Removal or installation of the product
vi) Any other cause, which does not relate to a product defect
vii) Cartons, equipment enclosures, cables or accessories used in conjunction with the product
WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR
We will pay labor and material expenses for covered items. We will not pay for the following:
1. Removal or installations charges.
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the
responsibility of the Kramer dealer from whom the product was purchased.
3. Shipping charges.
HOW YOU CAN GET WARRANTY SERVICE
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty coverage,
and should be included in any shipment of the product. Please also include in any mailing a contact name, company, address, and
a description of the problem(s).
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.
LIMITATION OF IMPLIED WARRANTIES
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to
the length of this warranty.
EXCLUSION OF DAMAGES
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer
shall not be liable for:
1. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the product, loss
of time, commercial loss; or:
2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on how long an
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitations and exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from place to place.
NOTE: All products returned to Kramer for service must have prior approval. This may be obtained from your dealer.
This equipment has been tested to determine compliance with the requirements of:
EN-50081: "Electromagnetic compatibility (EMC);
generic emission standard.
Part 1: Residential, commercial and light industry"
EN-50082: "Electromagnetic compatibility (EMC) generic immunity standard.
Part 1: Residential, commercial and light industry environment".
CFR-47: FCC Rules and Regulations:
Part 15: “Radio frequency devices
Subpart B – Unintentional radiators”
CAUTION!
⌦ Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or modifications to
the unit without the expressed approval of the manufacturer will void user authority to operate the equipment.
⌦ Use the supplied DC power supply to feed power to the machine.
⌦ Please use recommended interconnection cables to connect the machine to other components.

Kramer Electronics, Ltd.
3 Am VeOlamo Street. Jerusalem 95463, Israel Tel: [phone]
Fax: [phone], E-mail: [e-mail]
P/N:2900-000004 REV2
For the latest information on our products and a list of Kramer
distributors, visit our Web site: www.kramerelectronics.com.
Updates to this user manual may be found at
http://www.kramerelectronics.com/manuals.html.
We welcome your questions, comments and feedback.