Electro voice ap 3200 owners manual
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EV POWER AMPLIFIER
®
OWNER'S OPERATION AND SERVICE MANUAL
AP3200 POWER AMPLIFIER
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Operating and Service Instructions for the Electra-Voice AP3200 Power Amplifier
Table of Contents
1 ELECTRICAL ...............................................................
1.1 120 V ac, 50/60 Hz Power Connections ............................................
1.2 230/240 V ac, 50/60 Hz Power Connections .........................................
2 INSTALLATION
2.1 Rack Mounting .............................................................
2.2 Ventilation ................................................................
3 SIGNAL CONNECTIONS ......................................................
3.1 Input Connections ...........................................................
3.2 Line Output Connections ......................................................
3.3 Output Connections ..........................................................
3.4 Output Cable Selection ........................................................
8.4.1 Calculating Power Losses with 8 ohm loads .....................................
8.4.2 Calculating Power Losses with 4 ohm Loads .....................................
3.5 Damping Factor .............................................................
3.5.1 Calculating the Maximum Length of Cable for a Specified Damping Factor ..............
3.6 Speaker Protection Fuse Selection ...............................................
3.7 Compression Driver Protection Capacitors .........................................
4 OCTAL ACCESSORY SOCKETS ................................................
5 PROTECTION SYSTEMS .....................................................
5.1 Load Protection Circuitry ......................................................
5.2 Amplifier Protection Circuitry .................................. ., ................
5.3 Protect Indicator ............................................................
6 OPERATION ................................................................
6.1 Dual Mode of Operation .......................................................
6.2 Bridge Mode of Operation .....................................................
7 IN CASE OF PROBLEMS .....................................................
8 SPECIFICATIONS ...........................................................
9 SERVICE INFORMATION ....................................................
9.1 Trimpot Adjustments ........................................................
9.2 Equipment Needed ..........................................................
9.8 Adjusting R39, the LF Cancel Trimpot ...........................................
9.4 Adjusting R26, the BIAS Trimpot ...............................................
9.5 Adjusting R28 and R24, the Negative and Positive Current Limit Trimpots ................
9.6 Checking the Short Circuit Current .............................................
9.7 Ordering Replacement Parts ..................................................
9.8 Factory Service ............................................................
9.9 Technical Assistance . . . . . . ..................................................
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