QSC Audio ISA 800T manuals
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When we buy new device such as QSC Audio ISA 800T we often through away most of the documentation but the warranty.
Very often issues with QSC Audio ISA 800T 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 800T 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 800T User Manual
40 pages 2.59 Mb
*TD-000093-00*FCC INTERFERENCE STATEMENT CAUTION 2 IMPORTANT SAFETY PRECAUTIONS & EXPLANATION OF SYMBOLSWARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. 3 TABLE OF CONTENTS4 INTRODUCTION- 7 FEATURES & SETUP- If no indication: Fully illuminated (on): Illuminated most of the time: Occasional illumination: When power is switched off: CLIP : red LED that illuminates when the amplifier SIGNAL: green LED that lights up when the inputFully illuminated (on): Occasional illumination: POWER: green LED that illuminates when the power If no indication: Illuminated dimly all the time with brighter flashing: 8 FEATURES & SETUP- 9 FEATURES & SETUP-10 FEATURES & SETUP- PARALLEL:single input signal How to use PARALLEL mode: STEREO:When to use STEREO input configuration: How to use STEREO mode: 11 FEATURES & SETUP- SETTING THE DIP SWITCHES FOR STEREO OR PARALLEL MODE- non-T models SETTING THE DIP SWITCHES FOR STEREO OR PARALLEL MODE- T models 13 FEATURES & SETUP-SETTING THE FILTER DIP SWITCHES-If operating in BRIDGE MODE- Differences Between T & non-T Models:The low frequency filter is always active and is not defeatable. ISA 300T, ISA 500T and ISA 800T:If operating in STEREO or PARALLEL MODE- If operating in BRIDGE MODE- To Prevent Output Transformer Saturation- 16 INSTALLATION: NOTE: Rack mounting of amplifier is optional. Securing the Front Ears to the Rack Rails Supporting the Rear of the Amplifier 17 INSTALLATION: FAN COOLING-Air flow in QSC amplifiers OPERATING VOLTAGE (AC mains)- 19 CONNECTIONS: How to Connect to the DataPort V2: Basic Operation Notes: 20 CONNECTIONS: GENERAL- RECOMMENDED TONGUE TERMINAL SIZE- STACKING OF TONGUE TERMINALS- 21 CONNECTIONS: BRIDGE MODE PRECAUTIONS: Do not place speaker cables next to input wiring. Direct Low Impedance Output Connections- STEREO or PARALLEL Mode: BRIDGE Mode: 26 OPERATION: NORMAL OPERATING LEVELS AC POWER SWITCH FRONT PANEL LED INDICATORSA NOTE ON SOUND PRESSURE LEVELS-If exposure is at or greater than the maximum exposure, protective measures must be taken. GAIN CONTROLS 27 APPLICATIONS: General ISA Application Information- Distributed Line Principles (T models only) 28 APPLICATIONS: Low frequency filtering is always active on the T models. Low Frequency Filtering for 70-100V Systems-25 Volt, two-zone example: Distributed Output Application Examples- OUTPUT TERMINAL SAFETY WARNING! 100 Volt, two-zone example: Bridge Mode Using Hi-Z Outputs- 29 APPLICATIONS: 70 Volt, two-zone example: OUTPUT TERMINAL SAFETY WARNING! 32 APPLICATIONS:33 TROUBLESHOOTING: 39 WARRANTY INFORMATION & HOW TO CONTACT QSC
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QSC Audio ISA 800T Manual
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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