Crown PowerBase & 800CSL free download

File name Crown-PowerBase2_800CSL pwramp.pdf

Power Base-2 & 800CSL Amplifier Service Manual POWER AMPLIFIER SERVICE MANUAL POWER BASE-2 & 800CSL ® TM ©1995 by CROWN INTERNATIONAL, INC. Mailing Address: P.O. Box 1000 Elkhart, IN U.S.A. 46515-1000 Shipping Address: 57620 C.R. 105 Elkhart, IN U.S.A. 46517 CSLTM is a trademark and Power Base-2,® ODEP,® and Crown® are registered trademarks of Crown International, Inc. K-SVCPB2 1-95 1 Power Base-2 & 800CSL Amplifier Service Manual Table of Contents Introduction ... 4 Scope ... 4 Warranty ... 4 Parts ... 5 Specifications ... 6 Voltage Conversion ... 7 Circuit Theory ... 8 Test Procedures ... 13 Mechanical Parts Listing ... 17 Module Information ... 20 Q42647-0 Output Module (MT/MA) ... 21 Q42717-1 Output Module (MT/MA #2) ... 22 Q42871-6 Output Module (TO-3P MT/MA) ... 23 Q42966-4 Output Module (TO-3P #2) ... 24 Q43015-9 Output Module (THC) ... 25 Q43203-1 Output Module (THC #2) ... 26 Q42665-2 Main Module (Original) ... 27 Q42683-5 Main Module (#2) ... 29 Q42818-3 Main Module (3rd Gain) ... 31 Q43059-7 Main Module (THC) ... 34 3 Power Base-2 & 800CSL Amplifier Service Manual Specifications Unless noted otherwise, all specifications are based on driving an 8 ohm load per channel, both channels driven, the sensitivity switch in the 26dB position, the AC supply is 120VAC at 60Hz. Crown specifications are guaranteed through the warranty period (normally 3 years). Because our testing methods are more stringent than our published specifications, every Crown amplifier will exceed its published specifications. Input Impedance: Nominally 20K ohms balanced; 10K ohms unbalanced. Output Impedance: <10 milliohms in series with <2 microhenries. Protection Systems: Output Device Emulation Protection (ODEP) limits drive in the event of dangerous dynamic thermal conditions without interrupting power. Current limiting for shorted load protection. DC/LF and common mode output current Fault circuitry to mute audio. Delay of 4 seconds from turn on mutes amplifier to prevent dangerous turn-on transients. High voltage fuse in main transformer primary and low voltage fuse in fan primary. Slew rate limiting to prevent RF burn out. POWER Power 8 Ohm Stereo--320W/Ch 4 Ohm Stereo--400W/Ch 8 Ohm Bridge Mono--965W 4 Ohm Parallel Mono--68