OV4 - Sam Ash
Contents
1. ORANGE DYNAMIC INTELLIGENT VALVE OPTIMIZATION DIVO INSTALL GUIDE ORANGE v4 CONTACT DETAILS Orange Amplifiers OMEC House 108 Ripon Way Borehamwood Hertfordshire WD6 2JA ENGLAND Tel 44 20 8905 2828 Fax 44 20 8905 2868 info omec com Orange USA 2065 Peachtree Industrial Ct Suite 208 Atlanta GA 30341 USA Tel 1 404 303 8196 Fax 1 404 303 7176 info orangeusa com ORANGEov IMPORTANT SAFETY INFORMATION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un insulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle and WARNING are intended to alert the user to the presence of important operating instructions Failure to heed the instructions will result in severe injury or death Read these instructions keep these instructions Heed all warnings follow these instructions ORED SBOV4 WARNING Amplifiers and components inside them contain potentially fatal high voltages Voltages are present when the amplifier is turned on and also for some time after the amplifier has been turned off You can still get an electric shock when an amplifier is turned off and disconnected from the power All installations and product adjustment removals must be performed by an Orang2. should click firmly into place If the green earth wire has not been connected at this stage slide the spade connector on the end of the wire onto the prong on the OV4 module labelled EARTH Ensure the switch on the OV4 module labelled BIAS is set to the STANDARD setting TEST THE AMPLIFIER 10 IMPORTANT Before switching the amplifier on be sure that all controls are set to the minimum position and that the amplifier is connected to a suitable load i e a speaker cabinet e Connect the amplifier to the mains supply e Switch the amplifier to Standby e Wait two to three minutes whilst the OV4 performs its calibration routine indicated by the fault indicator LEDs flashing e Turn the amp s controls to the desired position switch the amp from Standby to On Play and play a note on the guitar The OV4 will then store the calibration value at this point and this will complete the calibration process e Once the calibration routine is complete the fault indicator LEDs will extinguish e After calibration a check is performed to see if the Standby switch is open or closed In the event that the switch is open the system does not attempt to re bias the amp and will restore the last known working value of grid bias voltage for the amplifier It will not re bias the amplifier until the first silent period when corrective biasing will take place After the very fir
3. does not exhibit any unusual behaviour under normal playing conditions If the amp has any existing faults these must be addressed by a qualified technician as recommended by the amplifier s manufacturer prior to the OV4 installation It is also worthwhile performing a quick check prior to installation to ensure that there is sufficient space within the amp to house the OV4 module If necessary the OV4 module can also be mounted externally however the external mounting bracket should be used to ensure all leads are shrouded 2 TOOLS REQUIRED 9 Ascrewdriver set For the purpose of this installation guide our test amp is an Orange Rockerverb 100 MKII equipped with four EL34 output valves 99107984 3 REMOVE CHASSIS AND OUTPUT VALVES Disconnect the amplifier from the mains power supply and make sure all the valves are cool to the touch For access to the output valves it may be necessary to remove a number of screws in order to remove the amplifier chassis from the main cabinet sleeve It is essential that no contact is made with the inner components PCB or circuit s housed inside the chassis Doing so may damage the amplifier and cause serious injury Heed all warnings stipulated by the manufacturer as printed on the amplifier and in the user manual Very carefully remove each output valve from the valve socket Slacken or remove any valve retainers where necessary Hold the valve a
4. e Amplifier approved fitting centre Disclaimer Orange Amplifiers its suppliers and subsidiaries accept no liability for any damage s injury s or death incurred from or while installing or using this product It is the responsibility of the authorised installer to perform the installation strictly in accordance with the installation guidelines The installer will take full responsibility for the installation Orange Amplifiers will only accept liability for their own branded product For the avoidance of doubt not the customer s amplifier or installation work undertaken Do not open the equipment case There are no user serviceable parts in this product Refer all servicing to qualified service personnel Unauthorised modification of this equipment is strictly forbidden If the product does not operate normally when the operating instructions are followed then refer the product to a qualified service engineer All electrical and electronic products should be disposed of separately from the municipal waste stream via designated collection facilities appointed by the government or local authorities 9191 WHAT IS INCLUDED 4 module Valve Interceptors and wiring harness to connect the valves from the amplifier to the OV4 module e 2x interceptors for two output valve amplifiers DIVO OV2 OR e 4x interceptors for four output valve amplifiers DIVO OV4 1xGreen Earth wire 1x strip of Velcro to attach t
5. he main OV4 module to your amplifier An external mounting bracket option sold separately is also available from your Authorised Orange dealer DIVO OV2 OV4 Modules purchased from Authorised Orange Dealers are also eligible for a free End User Interface to enable custom bias settings see pp 15 17 If this has not been included please contact your dealer ORED 581 4 Please take the time to read this guide in full before attempting the installation If you are unsure or uncomfortable with any aspect of the instructions herein contact a qualified technician 1 GETTING STARTED Firstly ensure that the amplifier selected for the installation is a suitable amplifier for the OV4 If unsure please contact the amplifier s manufacturer The amplifier must Bea Class A B valve amplifier with either two or four octal power valves in the output stage e g KT88 EL34 6L6 6V6 KT66 etc Bea fixed biased not Cathode biased Have a maximum plate voltage that does not exceed 500V If you are unsure please contact your amplifier manufacturer for more information IMPORTANT 6V6 valves run at a lower bias setting If 6V6 valves are installed in your amplifier the bias settings should be reduced to 25mA maximum on the Custom setting using the Bias Runner software interface kit Please refer to point 11 pp 15 16 Bias Settings for further details Before attempting installation ensure the amplifier
6. plifier s chassis If you are unsure please ask a qualified technician for advice ORED SBOV4 7 RUNNING THE EARTH WIRE The final wire is the green earth ground The eyelet end must be securely connected to a suitable reference to ground exactly as described in Running the Zero Volt Wire In our example we have connected it to the same location as the Zero Volt wire See the picture below for guidance The other spade connector slides onto the prong on the OV4 module labelled EARTH Green earth wire connected to amplifiers chassis If you are unsure please ask a qualified technician for advice 919 8 MOUNTING THE 464 Reassemble the amplifier ensuring the chassis is firmly seated in its cabinet sleeve and secured in its original position In our example we have chosen to mount the OV4 onto the rear of the amplifier using the external mounting bracket see overleaf As noted earlier the OV4 module can be mounted inside amplifier s cabinet sleeve or externally providing the wiring harness will reach the socket labelled TUBES on the OV4 module Remember make sure that the wires do not come into contact with any heat sources e g valves transformers 9107984 9 ATTACHING THE WIRING HARNESS TO THE OV4 MODULE Once satisfied that the OV4 is in the correct location and is mounted securely insert the wiring harness into the socket labelled TUBES on the OV4 module This
7. s here to indicate data has been successfully saved to the OV4 1 Device Status Device Settings History Information Status Connected Bias Current Audio Present mA Individual Values Amp serial number version wa 1 3 Tube 2 Tube cross reference Serial No i entry Access via Amp Serial No Bias Current Idle mA Z Individual Values Valve bias settings with the pencil icon i i Timers Total Service Hours 7 Audio Threshold Value Amp Hours Driven With Audio service hours Fault Time Seconds Total Hours Idle Notes field gt Fault Currents MA Mr Faut 71 Fault reset Notes for history When save is pressed the values entered will be saved to the hardware If the hardware detects a valve fault a counter Displays the history of all Under normal circumstances audio threshold will be incremented When interrogated the entries fault times and fault currents should remain at total number of faults are displayed A reset the factory set conditions and should not be function can be performed by authorised Always disconnect before modified personnel unplugging hardware More information about the features and operation of the DIVO OV4 can be found here on the Support section of our official website https www orangeamps com support downloads
8. st time of use the OV4 will learn your amplifier and it will no longer be necessary to wait for the full calibration routine If any of the fault indicator LEDs remain on after the calibration routine this will indicate a faulty valve and this should be replaced Each LED refers to the corresponding valve interceptor ORED 4 11 BIAS SETTINGS There are two preconfigured bias settings on the OV4 module Standard and Custom The default factory settings are e Standard 30mA no drop back bias feature e Custom 35mA with a drop back to 20mA when no audio has been detected for 2 minutes This helps preserve the life of the valves when not in use The OV4 allows users to further configure their own Custom bias setting using the additional DIVO Bias Runner software included with the DIVO End User Interface This is available free of charge with any DIVO OV2 or OV4 purchased from your Authorised Orange Dealer Should you wish to use the Custom bias function install the software included in the DIVO End User Interface kit and follow the onscreen instructions NEVER CONNECT TO DIVO TUBESYNC HARDWARE WHEN THE AMP IS POWERED AND ALWAYS DISCONNECT VIA THE SOFTWARE BEFORE UNPLUGGING THE HARDWARE USB connection from the PC to the interface module RJ45 connection from the interface module to hardware ORED 4 Bias Settings Continued The Bias Runner software allows users to select the specific valve
9. t the valve base and gently move or rock the valve in a circular motion whilst applying an upward force 9907984 4 TEST FOR VALVE INTERCEPTOR WIRING HARNESS CLEARANCE Plug the valve interceptors into the valve bases in numerical order 1 2 3 and 4 ensuring they are firmly seated The interceptors can be fitted from left to right or right to left providing they are numerical in order Check where the wiring harness will route Make sure that no wires come into contact with any part of the amplifier likely to generate heat e g valves and transformers These factors will help determine the best location for mounting the OV4 module N B It may be necessary to mount the OV4 module externally if there is not sufficient space within the amplifier s cabinet sleeve ORED SBOV4 5 RE INSTALL OUTPUT VALVES Once the valve interceptors are securely seated carefully re insert the output valves in any order into the valve interceptors 6 RUNNING THE ZERO VOLT WIRE The black wire on the wiring harness is called the Zero Volt wire This needs to be securely attached to the true Zero Volts of the amplifier a reference to ground In most cases this is the chassis i e the external metalwork of the amplifier For this example we are using the bolt which attaches the reverb transformer to the chassis Loosen the bolt thread it through the Zero Volt wire s eyelet and firmly re attach Zero volt wire Connected to am
10. type installed in the amplifier for optimum performance It also allows users to adjust the bias according to personal preference within safe pre defined operating parameters The software also allows users to configure the amp to use different valve types other than those originally installed When configuring Custom bias settings always adhere to the manufacturer s recommendations IMPORTANT NOTICE FOR 6V6 VALVES e 6V6 valves operate at a lower bias voltage than the Standard setting on the OV4 If 6 valves are fitted in the amplifier the bias settings should be reduced to 25mA maximum on the Custom setting using the User Interface and Bias Runner Software e 6V6 valves produce less power than other octal output valves and 6V6 equipped amplifiers are designed with these tolerances in mind Installing other types of octal valves in their place may cause damage to the amplifier Where 6V6 valves are factory fitted in the amplifier Orange recommends that the DIVO should only be used to regulate and monitor their health and operation rather than be used to experiment with alternate valve types e 6V6 valves operate at lower voltages than other types of octal valves commonly used in 50 and 100 Watt amplifiers For this reason 6V6 valves should not be used in place of other octal output valves If unsure please contact Orange Dynamic Intelligent Valve Optimisation Bias Runner Software Green saved icon appear
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