QSC Audio ISA 750 manuals
Home Audio > Stereo Amplifier
When we buy new device such as QSC Audio ISA 750 we often through away most of the documentation but the warranty.
Very often issues with QSC Audio ISA 750 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Stereo Amplifier QSC Audio ISA 750 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Stereo Amplifier on our side using links below.
QSC Audio ISA 750 User Manual
56 pages 3.62 Mb
*TD-000136-00* 2 Important Safety Precautions & Explanation of Symbols3 IntroductionUnpacking 4 Rack MountingCooling AC Mains Setting the Mode Switches Setting Clip Limiters 5 Selecting Stereo, Parallel, or Bridge ModeSetting Low Frequency FiltersISA 280/450/750/1350 ISA 300Ti/ 500Ti/800Ti 6 InputsDirect Low Impedance Outputs 7 Isolated Distributed Line Outputs: ISA 300Ti, ISA 500Ti, and ISA 800Ti Models Only8 LED IndicatorsPOWER: A single GREEN LED, on left side of AC Power switch. CLIP: SIGNAL: PROTECT (ISA 1350 only): Gain Controls 9 Specifications (all models)SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 10 Specifications: ISA 280, ISA 450, ISA 750, and ISA 135011 Specifications: ISA 300Ti, ISA 500Ti, and ISA 800Ti13 Precauciones importantes de seguridad y explicacin de los smbolos24 Prcautions Importantes et explication des symboles35 Wichtige Sicherheitsvorkehrungen und Symbolerklrung46
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4 pages 617.29 Kb
Service BulletinDescription Symptoms Background: the cause and the remedyThis is a normal and vital part of the amplifiers protection against short circuits. Temporary work-arounds InstructionsTools and materials required: Test equipment required: 2 Procedure: Replacing zener diodes in an ISA 750 or ISA 800T amplifierTools and materials required (continued):Figure 1. Prepare the leads of the new zener diodes. Figure 2. Prop the channel module assembly up on the chassis standoffs. Figure 3. You might need to clear hot glue away from diode D107. Use your hot soldering iron tip. snoitarbilaC tsujdA &054ASI T005ASI &057ASI T008ASI 3 Procedure: Installing new zener diodes in an ISA 450 or ISA 500T amplifierProcedure: Bias and current-limit calibrationBias adjustment Figure 4. Solder a new zener diode piggyback-style onto each old one. Current limit adjustment Finishing the repair 4 Contact informationTelephone: Fax: E-mail: Web site: Postal and parcel address:
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