user`s manual
Contents
1. 14 l THE QCBOX MODEL 5 POWER AMPLI FI ER SWITCHI NG AND TESTI NG BOX The QCBOX Model 5 power amplifier switching and testing box is of invaluable help in everyday laboratory use and when configuring an automatic or manual quality control setup The QCBOX Model 5 has an ultraslim design enhanced features as USB connection to the PC and DC measuring capabilities with respect to its predecessor model 4 increased power 50W 8Ohm with respect to its predecessors Model 1 2 amp 3 and wide range AC 90 240V power supply The power amplifier output current is limited under software control Its main feature is the possibility of internal switching under software control that permits the measurement of the impedance and frequency response of the loudspeaker or D U T connected to its output sockets without changing the loudspeaker or D U T wiring it is also possible to choose one among four inputs for the response measurements the internal switching is controlled via a USB port of the PC The inputs 3 and 4 can be also configured to measure DC voltages with range 2 5 and 5 respectively More than one unit can be used to route more than four channels An internal software controlled voltage generator can superimpose a DC voltage to the amplifier voltage output allowing for loudspeaker large signal parameters measurement A dedicated output ISENSE allows impedance measurements in con2. QCBOX POWER AMPLIFIER SWITCHI NG AND TESTI NG BOX MODEL 5 USER S MANUAL AUDIOMATICA Copyright 1991 2008 by AUDIOMATI CA SRL All Rights Reserved Edition 1 0 June 2008 IBM is a registered trademark of International Business Machines Corporation Windows is a registered trademark of Microsoft Corporation CONTENTS 1 THE QCBOX MODEL 5 POWER AMPLIFIER SWITCHING AND TESTING BOX 3 2 TECHNICAL SPECIFICATIONS NIMES 4 GENERAL CONDITIONS AND WARRANTY 5 4 INTERNAL FUNCTIONAL DIAGRAM eene rennen nennen nennen nnn 6 BASIG GONNEG 2 sata aas E E uuu alia 7 6 DEFAULT INTERNAL SETTINGS 8 USB DRIVER INSTALLATION Garantii mati taastati aidata a i ait aidata sa 9 SOFTWARE CONTROL 11 9 CALIBRATING SOFTWARE a 12 10 CONNETTING EXTERNAL ener nnn 13 11 CONNECTING A FOOT PEDAL SWITCH 13 12 RACK MOUNT ASSEMBLY AE A SA A EA CES ala UR ama si 13 13 INTERNAL SETTINGS AND TROUBLESHOOTING
3. AUDIOMATICA ON A a 7 V D U T ko ud M O i ko of iO i 1 2 3 4 ISENSE TO CLIO FROMCLIO i A B A B 7 14 13 INTERNAL SETTI NGS AND TROUBLESHOOTI If you want to make one of the possible internal settings disconnect the unit from the mains power and then carefully open the unit locate SW2 from the figure below and make the appropriate selection It is possible using the dip switch SW2 to select a phantom power supply on each input separately When a switch is ON the phantom power is present at that input Jumper J17 If present input 3 is DC coupled Jumper J18 If present input 4 is DC coupled Jumper J21 If present the power amplifier input is DC coupled Default factory settings are phantom power on inputs 1 and 2 input 3 and 4 DC coupled and power amplifier AC coupled 21 not present 7 15
4. the calibration 1 Take a resistor of known value in the range 10 to 22 Ohm assume for example a known resistor of 10 Ohm 2 Connect the resisitor directly to the output D U T socket of the QCBox don t use connecting cables 3 Simply perform an impedance measurement refer to chapter 13 of CLI Owin User s Manual 4 Read the value of its modulus at 1kHz assume you read 9 5 Ohm 5 Multiply 0 1 by 1 05 10 9 5 to obtain 0 105 6 Input this new value 7 Verify calibration with a new impedance measurement 13 10 CONNETTI NG EXTERNAL HARDWARE The DB25 connector can be used to interface the QCBOX Model 5 with external hardware the connection are as showed in the following figure TTL TURNTABLE CONTROL If you connect the unit to external signals be sure to use TTL logic levels 11 CONNECTING A FOOT PEDAL SWITCH It is possible to connect an external foot pedal switch to the PEDAL IN input on the rear panel of the QCBox Model 5 This will trigger QC operations as described in chapter 14 of the CLIO User s Manual 12 RACK MOUNT ASSEMBLY Using the Rack QC panel it is possible to assemble the QCBOX Model 5 together the SC 05 Signal Conditioner so that they can be mounted in a standard 19 rack frame Seal ar CC ber E M kd in N O i CHOQC Len Pe 2 1 MAS L j ji 2d 4 Ad HESS Z J IN Oo OUT h xs
5. 2 3 4 ISENSE TO CLIO FROM Please connect referring to the front panel 1 A pin to pin cable from the From plug to CLI O s output 2 A pin to pin cable from the To CLIO RCA plug to CLIO s input QCBOX MODEL 5 POWER AMPLIFIER SWITCHING 8 TESTING BOX f usa DIGITAL I O PEDALIN ES p ET O O AC POWER aa CAUTION Cr n0 240V red REFERSERVICETO E 150W N QUALIFIED WENN A PERSONNEL X 50 MADE IN ITALY B Y AUDIOMATICA SRL Please connect referring to the rear panel 3 An USB cable from the USB plug to a free PC USB port 4 A standard AC cord in the AC Power receptacle There is no mains switch Now you can plug the AC cord in the wall outlet and verify the lighting of the front panel LED 6 DEFAULT INTERNAL SETTI NGS The QCBox Model 5 can be operated also if the USB cable is not connected to the PC In this particular case when software control doesn t take place the unit operates in the following mode Internal setting frequency response I nput enabled input 1 SENSE enabled Current protection limiter 2 A 7 USB DRIVER INSTALLATI ON When connecting the USB cable to the PC and the QC Box it may be requested by the operating system to install a device driver Install driver under Windows 32 Found New Hardware gt lt Recycle Bin FTzszF USB UART xg o You will be prompted with the dialog boxes in next figure Select N
6. in this situation the power amplifier and inputs are disconnected while the speaker load is presented in parallel with CLI O s input and output this method of impedance measurement relies on the precise knowledge of the analyzer s output impedance and stimulates the D U T with signals of small amplitude To CLIO Speaker From CLIO Sense Internal connections for impedance measurements Internal Mode The second diagram shows us the unit set for freguency response measurements in this situation CLI O s output is fed to the power amplifier that drives the speaker under test while one among four inputs is directed to CLIO s input To CLIO From CLIO Sense Internal connections for frequency response measurements NOTE when the unit is set for frequency response measurements it is possible to measure the current flowing in the D U T through the ISENSE output this permits impedance measurements stimulating the D U T with signals of variable amplitude up to the amplifier s maximum power or voltage Refer to chapter 13 of the CLIO User s Manual 5 BASIC CONNECTI ONS The following diagram shows the basic connections needed to operate the unit INPUT A INPUT B CLIO OUTPUT A OUTPUT B USB PORT CLIO QCBOX 5 SENSE BLACK FROM CLIO RED INPUT 1 INPUT 2 INPUT 3 INPUT 4 WY QCBOX MODEL 5 UN 2 n INPUT Fi M f Y AUDIOMATICA DC j 4 eer oe S DUT 2 VO 1
7. ld hear them clicking when changing inputs Pleaserefertothe CLI O User s Manual for executing frequency response and impedance measurements Pressing the button gives access to the QCBOX MODEL 5 advanced features External Hardware mJ EM DC output voltage JL Bax Model 5 Controls Activate DC on output Phantom voltage 8 2 V IN 3 DC 0 94 V IN 4 DE 0 93 V E 1 9 Out Current 0 07 Activate OCBOX 5 readings escoccocccosssGS D a ae a Ge ae oe GPIO port Pedal status Output current limit Using this panel is possible to choose the DC output voltage the phantom voltage the output current limiter The GPIO port can be wrote simply by clicking on the output bits 12 9 CALIBRATI NG SOFTWARE It is possible to calibrate the CLIO 8 software to obtain maximum precision when executing current sensing measurement The calibration relies on the input of the correct sensing resistor value 1 Sense R in the External Hardware panel Inside the unit there is a sensing resistor of nominal value of 0 1 Ohm as it is rather difficult to maintain such a low value under strict production control the software allows for the input of its value The calibration relies on an impedance measurement of a precision resistor of known value Please enterthe value of 0 1 Ohm this will give you reasonable precision during measurements even in absence of the calibration described hereafter If you want to proceed with
8. nstalled C Search removable media floppy CD ROM Include this location in the search D USB Drivers Browse Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware Click Finish to close the wizard You will be prompted againto install the second USB device repeat the same procedure to install the USB Serial Port Found New Hardware Wizard Found New Hardware Wizard Completing the Found New Hardware Wizard This wizard helps you install software for The wizard has finished installing the software for USB Serial Port E USB Serial Port e C If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to do O Install the software automatically Recommended 9 Install from a list or specific location Advanced Click Next to continue Click Finish to close the wizard Windows drivers installation is now finished and your QCBOX Model 5 system ready to be used Install driver under Windows Vista You will be prompted with the dialog box in next figure Select Locate and Install Driver Found New Hardware Windows needs to install driver software for your FT232R USB UART Locate and install driver software recommended Windows will guide you
9. o Not this time and then select Install from a list or specific location Advanced Found New Hardware Wizard Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by This wizard helps you install software for looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission FT232R USB UART Read our privacy policy Can Windows connect to Windows Update to search for 9 SUE an installation CD software O Yes this time only Yes now and every time connect a device What do you want the wizard to do O Install the software automatically Recommended 5 Install from a list or specific location Advanced Click Next to continue Click Next to continue At the successive prompt Select Search for the best driver in these locations and press the Browse button Choose the USB Drivers folder inside the CLIO CD ROM It will be installed the USB Serial Converter Found New Hardware Wizard Found New Hardware Wizard Please choose pour search and installation options ey Completing the Found New AS Hardware Wizard isa icine best d D HRS eses The wizard has finished installing the software for Use the check boxes below to limit or expand the default search which includes local USB Serial Converter paths and removable media The best driver found will be i
10. stant voltage mode as well voice coil current distortion analysis The ISENSE DC current is measured in a range 2 25 A dedicated input PEDAL IN permits an external foot pedal switch or TTL signal to be connected and trigger QC operations A DB25 connector on the rear panel feature 5 digital IN and 6 digital OUT 2 TECHNICAL SPECI FI CATI ONS Inputs Output power THD 1 kHz Functions Dimensions Weight Power supply Four line microphone inputs with selectable ohantom power supply 0 24V software controlled TTL pedal input RCA connector 5 digital inputs DB25 connector 50W 8Ohm power amplifier 26dB gain with current sensing and software controlled current limiter 6 digital outputs DB25 connector 0 004 USB controlled internal switches for impedance measurements Isense DC current measurement 2 25A DC IN measurement IN 3 range 2 5 IN 4 range 5 23 w x23 d x4 h cm 1 4kg 150W 90 240VAC 3 GENERAL CONDI TI ONS AND WARRANTY THANKS Thankyou for purchasing your QCBox Model 5 We hope that your experiences using QCBox Model 5 will be both productive and satisfying CUSTOMER SUPPORT Audiomatica is committed to supporting the use of the QCBox Model 5 and to that end offers direct support to end users Our users all around the world can contact us directly regarding technical problems bug reports or suggestions for future software enhancements You can call fax or write to
11. through the process of installing driver software for your device gt Ask me again later Windows will ask again the next time you plug in your device or log on Don t show this message again for this device Your device will not function until you install driver software Vista will connect to the Windows Update site trying to download the driver If it fails or if an internet connection is not available it will ask for a device driver CD Insert the disc that came with your USB Serial Port If you have the disc that came with your device insert it now Windows will automatically search the disc for driver software Please insert the QCBox 5 CD rom the drivers will be automatically found and installed 10 The software for this device has been successfully installed Windows has finished installing the driver software for this device USB Serial Port Windows drivers installation is now finished and your QCBOX Model 5 system ready to be used 11 8 SOFTWARE CONTROL It is possible to control the QCBOX Model 5 from the CLIO 8 software Run CLIO 8 then click on the External Hardware Button or simply press Shift F4 External Hardware t Input 2 C t nput 3 C t nput 4 C mplnternal t mpl Sense Sense Ohm Model 5 10 100 Choose Model 5 in the Type drop down The control should be active an acoustic confirmation should come from the internal relays you shou
12. us at AUDI OMATICA SRL VIA MANFREDI 12 50136 FLORENCE ITALY PHONE 39 055 6599036 FAX 39 055 6503772 AUDI OMATI CA ON LI NE For any inquiry and to know the latest news about the QCBox Model 5 and other Audiomatica s products we are on the Internet to help you AUDIOMATICA website www audiomatica com E MAIL info audiomatica com AUDI OMATI CA S WARRANTY Audiomatica warrants the QCBox Model 5 against physical defects for a period of one year following the original retail purchase of this product In the first instance please contact your local dealer in case of service needs You can also contact us directly as outlined above or refer to other qualified personnel WARNINGS AND LIMITATIONS OF LI ABI LI TY Audiomatica will not assume liability for damage or injury due to user servicing or misuse of our product Audiomatica will not extend warranty coverage for damage of the QCBox Model 5 caused by misuse or physical damage Audiomatica will not assume liability for the recovery of lost programs or data The user must assume responsibility for the quality performance and the fitness of Audiomatica software and hardware for use in professional production activities The CLIO SYSTEM and AUDIOMATICA are registered trademarks of Audiomatica SRL 4 INTERNAL FUNCTI ONAL DI AGRAM The first diagram shows us the unit set for impedance measurements in I nternal Mode referring to CLIO software see chapter 13 of the User s Manual
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