Crown LPS-800 Manuel de service

Power Base-2 & 800CSL Amplifier Service Manual1POWER BASE-2® & 800CSL™POWER AMPLIFIERSERVICE MANUALK-SVCPB21-95CSL™ is a trademark and Power B

Power Base-2 & 800CSL Amplifier Service Manual10allows the NFb loop to control Error Amp gain byfeeding back to its non-inverting input (with its

Power Base-2 & 800CSL Amplifier Service Manual11the positive half, and about .5V across the bias resistorin the negative half. Q18 conduction (and

Power Base-2 & 800CSL Amplifier Service Manual12Theory±ODEP circuitry is used to simulate the thermal barri-ers between the interior of the output

Power Base-2 & 800CSL Amplifier Service Manual13Checkout ProceduresGENERAL INFORMATIONThe following test procedures are to be used to verifyoperat

Power Base-2 & 800CSL Amplifier Service Manual14TEST 4: AC POWER DRAWSpec: 90 Watts maximum quiescent.Initial Conditions: Controls per standard.Pr

Power Base-2 & 800CSL Amplifier Service Manual15Checkout ProceduresProcedure Capacitive: Load each channel to 8 ohms inparallel with 2 µF. Inject

Power Base-2 & 800CSL Amplifier Service Manual16Checkout ProceduresPOST TESTINGAfter completion of testing, if all tests are satisfactory,the ampl

Power Base-2 & 800CSL Amplifier Service Manual17Mechanical (Non-Module) PartsSUPPLIMENTAL ITEMSCPN ITEM QTYD 4137-2 Nylon Thumbscrew Washer 4C 334

Power Base-2 & 800CSL Amplifier Service Manual18Mechanical (Non-Module) PartsOUTPUT ASSEMBLY (ONE PER CHANNEL)CPN ITEM QTYA10100-4 Washer, #6 Flat

Power Base-2 & 800CSL Amplifier Service Manual19Mechanical (Non-Module) PartsMAIN CHASSIS ASSEMBLYCPN ITEM QTYA10086-70806 Screw, 8-32-.37 Mach Rd

Power Base-2 & 800CSL Amplifier Service Manual2À PRÉVENIR LE CHOCÉLECTRIQUE N’ENLEVEZPAS LES COUVERTURES.RIEN DES PARTIESUTILES À L’INTÉRIEUR.DÉBR

Power Base-2 & 800CSL Amplifier Service Manual20Module InformationMODULE HISTORYSince its introduction in 1986, the PB-1 has gonethrough a number

Power Base-2 & 800CSL Amplifier Service Manual21Q42647-0 Output Module Parts List (P10137-1 Board)Q42647-0 Output Module (MT/MA Original) for PB-2

Power Base-2 & 800CSL Amplifier Service Manual22Q42717-1 Output Module Parts List (P10233-8 Board)Q42717-1 Output Module (MT/MA #2) for PB-2:CAPAC

Power Base-2 & 800CSL Amplifier Service Manual23Q42871-6 Output Module (MT/MA TO-3P Driver) for PB-2/800CSL:CAPACITORSC01 C 8511-5 .047µFC02 C 796

Power Base-2 & 800CSL Amplifier Service Manual24Q42966-4 Output Module Parts List (P10305-4 Board)Q42966-4 Output Module (TO-3P Driver #2) for PB-

Power Base-2 & 800CSL Amplifier Service Manual25Q43015-9 Output Module for Through Hole Chassis (THC)PB-2/800CSL units:CAPACITORSC01 C 8511-5 .047

Power Base-2 & 800CSL Amplifier Service Manual26Q43203-1 Output Module (THC #2) for PB-2/800CSL Units:CAPACITORSC01 C 8511-5 .047µFC02 C 7964-7 .2

Power Base-2 & 800CSL Amplifier Service Manual27Q42665-2 Main Module Parts List (D 6910-0 Board)Q42665-2 Main Module (Original) for PB-2:CAPACITOR

Power Base-2 & 800CSL Amplifier Service Manual28R111 R211 A10266-1231 12KR112 R212 A10266-5131 51KR113 R213 A10266-4721 4.7KR114 R214 A10266-4721

Power Base-2 & 800CSL Amplifier Service Manual29Q42683-5 Main Module Parts List (D 6910-0 Board)Q42683-5 Main Module (#2) for PB-2:CAPACITORSC1 C

Power Base-2 & 800CSL Amplifier Service Manual3Introduction ...4Scope...

Power Base-2 & 800CSL Amplifier Service Manual30R100 R200 C 7409-3 5K POTR101 R201 A10265-49911 4.99KR102 R202 A10266-1021 1KR103 R203 A10265-1003

Power Base-2 & 800CSL Amplifier Service Manual31Q42818-7 Main Module Parts List (D 7251-8 Board)Q42818-7 Main Module (3rd Gain) for PB-2/800CSL:CA

Power Base-2 & 800CSL Amplifier Service Manual32Q116 Q216 C 3786-8 PN4250AQ117 Q217 D 2961-7 SEL 2N3859AQ118 Q218 D 2961-7 SEL 2N3859AQ119 Q219 C

Power Base-2 & 800CSL Amplifier Service Manual33INTERCONNECTSJ1 C 7593-4 HEADER 5 PINJ2 C 4508-5 16 PIN SOCKETJ9 C 7527-2 HEADER 6 PINJ10 C 7592-6

Power Base-2 & 800CSL Amplifier Service Manual34Q43059-7 Applicability: Main Module for Through HoleChassis (THC) PB-2/800CSL units.CAPACITORSC1 C

Power Base-2 & 800CSL Amplifier Service Manual35Q43059-7 Main Module Parts List (D 7993-5 Board)Q119 Q219 C 3625-8 NPN 2N4125Q120 Q220 C 3625-8 NP

Power Base-2 & 800CSL Amplifier Service Manual36Q43059-7 Main Module Parts List (D 7993-5 Board)R193 R293 A10266-1031 10KR194 R294 A10266-1041 100

Power Base-2 & 800CSL Amplifier Service Manual4CrownTechnical Support GroupFactory ServiceParts DepartmentMailing Address:PO Box 1000Elkhart, IN

Power Base-2 & 800CSL Amplifier Service Manual5Partsshipment on a C.O.D. or pre-payment (check or creditcard) basis.TERMSNormal terms are pre-paid

Power Base-2 & 800CSL Amplifier Service Manual6SpecificationsUnless noted otherwise, all specifications are basedon driving an 8 ohm load per chan

Power Base-2 & 800CSL Amplifier Service Manual7Voltage ConversionNote: The only versions of thisproduct produced at the CrownFactory with internat

Power Base-2 & 800CSL Amplifier Service Manual8TheoryOVERVIEWIt should be noted from the outset that the PB-1 and460CSL amplifiers are electricall

Power Base-2 & 800CSL Amplifier Service Manual9Theorytivity is achieved by controlling the ratio of feedback toinput resistance. The Sensitivity S