Instruction/ maintenance manual of the product VA-8xl Kramer Electronics
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KRAMER ELECTRONICS LTD. USER MAN UAL MODEL: V A - 8xl 8 - Ch annel Bala nced Stereo Audio Amp lifie r P/N: 2900 - 30015 1 Rev 1.
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VA - 8xl – Conte nts i Conte nt s 1 Introduct ion 1 2 Getting S tarted 2 2.1 Achi eving the Best Performance 2 3 Overview 3 3.1 Defining t he VA - 8xl 8 - Channel Bal anced Stereo Audio Amplifier 3 4 Connecting the VA - 8xl 6 5 Operating the V A - 8xl 8 5.
VA - 8xl - Introd uction 1 1 Intr oduction Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordabl e solutions to the vast range of problems t hat confront t he video, audi o, pres entatio n, and broadcasting professional on a daily basis.
2 VA - 8xl - Getti ng St arte d 2 Getting Start ed We recommend that you: • Unpack the equipment careful ly and save the original box and packaging materials f or possible future shipment • Review.
VA - 8xl - Over view 3 3 Over vi ew The VA - 8xl 8- Channel B alanced St ereo Audio Amplif ier is a high −performance 8- channel, balanced stereo input volum e controller for balanced audio signals on terminal bl ock connectors. The volume of each L and R stereo channel can be adjusted independentl y of the other stereo channel.
4 VA - 8xl - Over view Fig ure 1 : VA - 8 xl 8- C hann el Bal anced S tereo A udio Ampli fier F ront Pa nel # Feature Functi on 1 POWER Swi tch Ill uminat ed swi tch su pplyi ng pow er to t he unit 2 CHANNEL SELECTOR But tons (a). Sel ect/ deselec t th e ster eo ch ann el (from 1 to 8 ) (b).
VA - 8xl - Over view 5 VA - 8xl – Ov erview 5 Fig ure 2 : VA - 8 xl 8- C hann el Bal anced S tereo A udio Ampli fier Re ar Pan el # Feature Function 9 IN T erminal B lock Conn ectors Connect to audi.
6 VA - 8xl - Conn ect ing the V A - 8xl 4 Connecti ng the VA - 8xl Always switch off the power to each device before connecting it to your VA - 8xl . A fter connecting your VA - 8xl , connect its power and then switch on the power to each de vice. To connect the VA - 8xl as ill ustrated in the example in Figure 6 : 1.
VA - 8xl - Conn ect ing the V A - 8xl 7 Fig ure 6 : Conne ctin g the VA - 8xl 8- Cha nnel Bal ance d Stere o Audi o Ampli fier.
8 VA - 8xl - Operat ing the V A - 8xl 5 Opera ting the VA - 8xl When switching on the VA - 8xl (after a previous session) , t he VA - 8xl briefl y scans each channel ( stored in t he non - volati le memory ), showing the settings in the LE D displays.
VA - 8xl - Opera t ing the V A - 8xl 9 3. Press the UP or DOWN button once t o increase or decrease, as appropriate, in i ncrements of 0.5dB. Press and hold t he UP or DO W N button, to increase or decrease the decibel level by a significant amount. 4.
10 VA - 8xl - Op eratin g the V A - 8xl To recall a setting, via the front panel buttons, do the following: 1. When the LE D display s are dimmed, press the UP button. The abbreviation “rCL” (recall ) appears in the L EFT LED d isplay . 2. Press the appropriate CHANNE L SELECTOR button.
VA - 8xl - Contr oll ing the V A - 8xl 11 6 Control ling the VA - 8xl You can control a single VA - 8xl unit (see S ection 6.1 ) or configure up to a 120 channel balanc ed stereo audio amplifier, using 15 units via RS - 485 or RS - 232 (see Section 6.
12 VA - 8xl - Co ntr olli ng t he VA - 8xl Method B ( Figure 8 )— Connect the RS - 232 9 - pin D - sub port on the unit via a straight (fl at) cable to the null - modem adapter, and connect the null - modem adapter to the RS - 232 9 - pi n D - s ub port on t he PC.
VA - 8xl - Contr oll ing the V A - 8xl 13 For a single, stand alone machine, set as MACHINE # 1. MACHIN E # DIP - SWI TCH 1 2 3 4 1 ON OFF OF F OFF 2 OFF ON OF F OFF 3 ON ON OFF OFF 4 OFF OFF ON OFF 5.
14 VA - 8xl - Co ntr olli ng t he VA - 8xl Fig ure 10 : Co nfi guring up to 15 VA - 8 xl Units 6.3.1 Connecting a C ontrol Int erface on a Set of Un its To connect the control interfac e on a set of u.
VA - 8xl - Contr oll ing the V A - 8xl 15 2. Attach t he RS - 232 9 - pin D- su b (F ) c onnector (A) to another RS - 232 9 - pin D- sub (M) connector (B) by connecting PIN 5 to PIN 5, PIN 3 to PIN 2, and PIN 2 to PIN 3 . 3. Connect the RS - 232 9 - pi n D- sub (F) connector (A) to your PC’s RS - 232 9- pin D- sub (M) port.
16 VA - 8xl - Co ntr olli ng t he VA - 8xl 6.3.3 Connecting t he RS - 485 Cont rol Interface To connect an RS - 485 connector on one VA - 8xl uni t to an RS - 485 connector on another unit: 1. Connect the “+” PIN on the first VA - 8xl unit to the “+” PIN on the second VA - 8xl unit 2.
VA - 8xl - Contr oll ing the V A - 8xl 17 Fig ure 12 : A n RS - 4 85 Con trol Interfac e S etup.
18 VA - 8xl - Up gra ding th e Fla sh Mem ory 7 Upgradi ng the Flash M emor y The VA - 8xl firm ware is located in FLASH memory, which lets you upgrade to the latest Kram er firmware versi on in mi nutes! The process i nvolves: • Downloading from the Internet (see Secti on 7.
VA - 8xl - Upgr adin g the Fl ash Memor y 19 3. Connect the power cord and turn the POW ER switc h on the VA - 8xl ON . The LED display s m ay show erratic data, which s hould be ignored. 7.3 Upgrading Firmware Follow these s teps to upgrade the firm ware: 1.
20 VA - 8xl - Up gra ding th e Fla sh Mem ory Fig ure 14 : Atm el – Fli p W i ndow 3. Press the k eyboard short cut key F4 (or select the “ Read Configurat ion File ” com m a nd f rom t he File menu, or press the keys: Alt FR ). The “ Open Configurati on File ” window appears: Fig ure 15 : O pen Co nfig uratio n File S el ect W indo w 4.
VA - 8xl - Upgr adin g the Fl ash Memor y 21 Fig ure 16 : Atm el – Fli p W i ndow (RS - 23 2 Comm unic ation) 5. Click OK and press the keyboard shortcut key F3 (or select the “ Communication / RS232 ” c ommand from the S ettings menu, or press the keys: Al t SCR ).
22 VA - 8xl - Up gra ding th e Fla sh Mem ory Fig ure 18 : Atm el – Fli p W i ndow (C onne cted) 7. Click Run . After each stage in the operation is compl eted, the check - box for that stage becomes col ored green ( see also the blue progress indicat or on the status bar ).
VA - 8xl - Upgr adin g the Fl ash Memor y 23 Fig ure 19 : Atm el – Fli p W indo w (Opera tion Com plet ed) 8. Close the “ Atme l – Flip ” window. 9. Turn the P OWER switch on the VA - 8xl OFF. 10 . Dis connect the RS - 232 9 - pin D - sub rear panel port on the VA - 8xl unit from the null modem adapter.
24 VA - 8xl - Tech nical Sp ecific ations 8 Technical Specifications INPUTS: 8 balan ced ste reo a udio +4 dBm / 3 0k Ω on det achabl e termin al block s OUTPUTS: 8 balan ced st ereo a udio + 4dBm / 50 Ω on det achabl e termin al block s GAIN: - 95dB t o +31dB MAX.
VA - 8xl - Defau lt Com muni cation P aram eters 25 9 Defaul t Communica tion Par ameter s RS - 232 Protoco l 200 0 Baud Rate: 9600 Data Bi ts: 8 Stop Bits : 1 Par it y: None Comm and Format: HEX Example (O utput 1 to Input 1): 0x01, 0x81, 0x81, 0x8 1 Ether net IP Add ress: 192.
26 VA - 8xl - Kr amer P roto col 2000 10 Krame r Protocol 2000 The VA - 8xl is com patible with Kramer’s P rotocol 2000 (vers ion 0.50 ). Th is RS - 232 / RS - 485 com munication protocol uses fou r bytes of informat ion as defined be l ow: 1st BYTE : Bit 7 (MSB) Defined as 0.
VA - 8xl - Kram er Pro tocol 2000 27 The following tables define t he VA -8 xl hex codes for attenuation gain control, amplificati on gain control and the channel number codes .
28 VA - 8xl - Kr amer P roto col 2000 Gain (d B) LED Hex Codes Gain (dB) LED Hex Codes Gain (dB) LED Hex Codes - 71 - 71 16 XX B2 81 - 43 - 43 16 XX EA 81 - 15 - 15 16 XX A2 A1 - 70.5 - 70.5 16 XX B3 81 - 42.5 - 42.5 16 XX EB 81 - 14.5 - 14.5 16 X X A3 A1 - 70 - 70 16 XX B4 81 - 42 - 42 16 XX EC 81 - 14 - 14 16 X X A4 A1 - 69.
VA - 8xl - Kramer Protoc o l 2000 29.
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An important point after buying a device Kramer Electronics VA-8xl (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kramer Electronics VA-8xl yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kramer Electronics VA-8xl - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kramer Electronics VA-8xl you will learn all the available features of the product, as well as information on its operation. The information that you get Kramer Electronics VA-8xl will certainly help you make a decision on the purchase.
If you already are a holder of Kramer Electronics VA-8xl, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kramer Electronics VA-8xl.
However, one of the most important roles played by the user manual is to help in solving problems with Kramer Electronics VA-8xl. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kramer Electronics VA-8xl along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
