Crown POWER BASE 1 Service Manual

Macro-Tech 2400 Amplifier Service Manual1MACRO-TECH®-2400POWER AMPLIFIERSERVICE MANUALK-SVCMA243-96Macro-Tech®, ODEP® and Crown® are registered trade

Macro-Tech 2400 Amplifier Service Manual10High Side (HS)The High Side (HS) of the bridge operates much likea conventional bipolar push-pull output con

Macro-Tech 2400 Amplifier Service Manual11deliver +Vcc and -Vcc from the same bridge rectifierand filter as a total difference in potential, regardles

Macro-Tech 2400 Amplifier Service Manual12TheoryNEGATIVELOW SIDEOUTPUTPNP STAGEPOSITIVELOW SIDEOUTPUTNPN STAGENEGATIVEHIGH SIDEOUTPUTPNP STAGEPOSITIVE

Macro-Tech 2400 Amplifier Service Manual13Electrical Checkout ProceduresGeneral InformationThe following test procedures are to be used to verifyopera

Macro-Tech 2400 Amplifier Service Manual14Test 4: AC Power DrawSpec: 100 Watts maximum quiescent.Initial Conditions: Controls per standard.Procedure:

Macro-Tech 2400 Amplifier Service Manual15Electrical Checkout ProceduresTest 12: Output PowerSpec at 8 Ohm Stereo: >= 520W at 0.1% THD.Spec at 4 Oh

Macro-Tech 2400 Amplifier Service Manual16Test 18: Turn Off TransientsSpec: No dangerous transients.Initial Conditions: Controls per standard.Procedur

Macro-Tech 2400 Amplifier Service Manual17Parts List (Non-Module)Supplimental ItemsCPN ITEM QTYD 4137-2 Nylon Thumbscrew Washer 4C 3342-0 Feet, Black

Macro-Tech 2400 Amplifier Service Manual18Parts List (Non-Module)Output Assembly (cont.)CPN ITEM QTY (ONE PER CHANNEL)M21322J8 Heat Sink with Fins 2C

Macro-Tech 2400 Amplifier Service Manual19Parts List (Non-Module)Chassis Front Assembly (Cont.)CPN ITEM QTYA10086-10604 Screw, 6-32 x .25 3C 6005-0 Se

Macro-Tech 2400 Amplifier Service Manual2À PRÉVENIR LE CHOCÉLECTRIQUE N’ENLEVEZPAS LES COUVERTURES.RIEN DES PARTIESUTILES À L’INTÉRIEUR.DÉBRANCHER LA

Macro-Tech 2400 Amplifier Service Manual20Module and Schematic InformationModule HistorySince the introduction of the MA-2400 amplifier therehave been

Macro-Tech 2400 Amplifier Service Manual21Fuse Module Parts ListsQ42742-9 Fuse ModuleC1, C2 C 5234-7 .047µF 125VD1, D2 C 3181-2 1N4148 Diode0 Ohm C 58

Macro-Tech 2400 Amplifier Service Manual22Q42742-9 Display Module (D 6260C4 board) Parts ListCapacitorsC501 C601 C 6802-0 .47µF Ax 50VC502 C602 C 6806

Macro-Tech 2400 Amplifier Service Manual23Q42875-7 Display Module (D 6260C4 board) Parts ListCapacitorsC501 C601 C 6802-0 .47µF AxC502 C602 C 6806-1 .

Macro-Tech 2400 Amplifier Service Manual24Q43442-5 Display Module (D 8897-7 board) Parts ListCapacitorsC501 C601 C 6802-0 .47µF AxC502 C602 C 6806-1 .

Macro-Tech 2400 Amplifier Service Manual25Q42670-2 Output Module (P10233-8 board) Parts ListCapacitorsC01 C 3978-1 .047µFC02 C 2938-6 .1µFC03 C 2938-6

Macro-Tech 2400 Amplifier Service Manual26Q42887-2 Output Module (P10315-3 board) Parts ListCapacitorsC01 C 8511-5 .047µFC02 C 8426-6 .1µFC03 C 8426-6

Macro-Tech 2400 Amplifier Service Manual27Q42985-4 Output Module (P10337-7 board) Parts ListCapacitorsC01 C 8511-5 .047µF 250V AxC02 C 8426-6 .1µFC03

Macro-Tech 2400 Amplifier Service Manual28Q43194-2 Output Module (P10396-3 board) Parts ListCapacitorsC01 C 8511-5 .047µF 250V AxC02 C 8426-6 .1µFC03

Macro-Tech 2400 Amplifier Service Manual29Q43358-3 Output Module (P10433-4 board) Parts ListCapacitorsC01 A10434-437JD .047µF 250VC02 C 8426-6 .1µFC03

Macro-Tech 2400 Amplifier Service Manual3Table of ContentsIntroduction ...4Parts Information

Macro-Tech 2400 Amplifier Service Manual30Q42667-8 Main Module (D 6978-7 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC3 C 4303-1 100

Macro-Tech 2400 Amplifier Service Manual31Q42667-8 Main Module (D 6978-7 board) Parts List Cont.R11 A10266-5621 5.6KR12 A10266-4331 43KR13 A10266-1021

Macro-Tech 2400 Amplifier Service Manual32Misc.Mounts U1, U2:(2) C 1889-2 6-32 Nut(2) C 2176-3 6-32 X .5 Screw(2) C 5341-0 Heatsink(2) C 5594-4 Star W

Macro-Tech 2400 Amplifier Service Manual33Q42737-9 Main Module (D 6978-7 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC3 C 4303-1 100

Macro-Tech 2400 Amplifier Service Manual34ResistorsR1 A10265-53621 53.6KR2 A10266-2402 24 OHMR3 A10266-2402 24 OHMR4 A10265-46421 46.4KR11 A10266-5621

Macro-Tech 2400 Amplifier Service Manual35ConnectorsJ9 C 6871-5 Header, 6 PinJ10 C 6850-9 Header, 4 PinJ11 C 7077-8 Retainer, 3 PinJ100 J200 C 6777-4

Macro-Tech 2400 Amplifier Service Manual36CapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC3 C 4303-1 1000µFC4 C 6802-0 .47µFC5 C 6806-1 .01µFC6 C 6806-1

Macro-Tech 2400 Amplifier Service Manual37ResistorsR1 A10265-53621 53.6KR2 A10266-2402 24 OHMR3 A10266-2402 24 OHMR4 A10265-46421 46.4KR11 A10266-5621

Macro-Tech 2400 Amplifier Service Manual38ConnectorsJ9 C 6871-5 Header, 6 PinJ10 C 6850-9 Header, 4 PinJ11 C 7077-8 Retainer, 3 PinJ100 J200 C 6777-4

Macro-Tech 2400 Amplifier Service Manual39Q42777-5 Main Module (D 7251-8 board) Parts ListCapacitorsC1 C 3913-8 470µFC2 C 3913-8 470µFC4 C 6802-0 .47µ

Macro-Tech 2400 Amplifier Service Manual4CrownTechnical Support GroupFactory ServiceParts DepartmentMailing Address:PO Box 1000Elkhart, IN USA 46515

Macro-Tech 2400 Amplifier Service Manual40ResistorsR1 A10265-53621 53.6KR2 A10266-2402 24 OhmR3 A10266-2402 24 OhmR4 A10265-46421 46.4KR11 A10266-5621

Macro-Tech 2400 Amplifier Service Manual41ConnectorsJ1 C 7593-4 Header, 5 PinJ9 C 7527-2 Header, 6 PinJ10 C 7592-6 Header, 4 PinJ11 C 7526-4 Header, 3

Macro-Tech 2400 Amplifier Service Manual42CapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC4 C 6802-0 .47µFC5 C 6806-1 .01µFC6 C 6806-1 .01µFC7 C 6804-6

Macro-Tech 2400 Amplifier Service Manual43Q117 Q217 D 2961-7 SEL 2N3859AQ118 Q218 D 2961-7 SEL 2N3859AQ119 Q219 C 3625-8 2N4125Q120 Q220 C 3625-8 2N41

Macro-Tech 2400 Amplifier Service Manual44R187 R287 A10266-3631 36KR188 R288 A10266-3631 36KR189 R289 A10266-2731 27KR190 R290 A10266-2051 2MR191 R291

Macro-Tech 2400 Amplifier Service Manual45Q43037-3 Main Module (D 7993-5 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC4 C 6802-0 .47

Macro-Tech 2400 Amplifier Service Manual46Q120 Q220 C 3625-8 NPN 2N4125Q121 Q221 C 7458-0 NPN 2N4123Q122 Q222 C 7458-0 NPN 2N4123Q123 Q223 C 7458-0 NP

Macro-Tech 2400 Amplifier Service Manual47R185 R285 A10266-2421 2.4KR186 R286 A10266-2751 2.7MR187 R287 A10266-3631 36KR188 R288 A10266-3631 36KR189 R

Macro-Tech 2400 Amplifier Service Manual48Q43132-2 Main Module (D 8283-0 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC4 C 6802-0 .47

Macro-Tech 2400 Amplifier Service Manual49Q113 Q213 C 3625-8 NPN 2N4125Q115 Q215 D 2962-5 NPN MPS8097Q116 Q216 C 3786-8 PNP PN4250Q117 Q217 D 2961-7 N

Macro-Tech 2400 Amplifier Service Manual5Parts Informationshipment on a C.O.D. or pre-payment (check or creditcard) basis.TermsNormal terms are pre-pa

Macro-Tech 2400 Amplifier Service Manual50R181 R281 A10266-4721 4.7KR182 R282 A10266-2201 22R183 R283 A10266-2421 2.4KR184 R284 A10266-4741 470KR185 R

Macro-Tech 2400 Amplifier Service Manual51Q43272-6 Main Module (D 8283-0 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC4 C 6802-0 .47

Macro-Tech 2400 Amplifier Service Manual52Q110 Q210 C 3810-6 NPN MPSA43Q112 Q212 C 3625-8 NPN 2N4125Q113 Q213 C 3625-8 NPN 2N4125Q115 Q215 D 2962-5 NP

Macro-Tech 2400 Amplifier Service Manual53R179 R279 A10266-1321 1.3KR180 R280 A10266-4711 470R181 R281 A10266-4721 4.7KR182 R282 A10266-2201 22R183 R2

Macro-Tech 2400 Amplifier Service Manual54Q43257-7 Main Module (D 8369-7 board) Parts ListCapacitorsC1 C 4303-1 1000µFC2 C 3913-8 470µFC4 C 6802-0 .47

Macro-Tech 2400 Amplifier Service Manual55Q43257-7 Main Module (D 8369-7 board) Parts List Cont.Q113 Q213 C 3625-8 NPN 2N4125Q115 Q215 D 2962-5 NPN MP

Macro-Tech 2400 Amplifier Service Manual56Q43257-7 Main Module (D 8369-7 board) Parts List Cont.R181 R281 A10266-4721 4.7KR182 R282 A10266-2201 22R183

Macro-Tech 2400 Amplifier Service Manual6SpecificationsUnless noted otherwise, all specifications are basedon driving an 8 ohm load per channel, both

Macro-Tech 2400 Amplifier Service Manual7Voltage ConversionThe 120 Volt 60 Hz version, sold in the United States,is not voltage selectable. It does no

Macro-Tech 2400 Amplifier Service Manual8TheoryOverviewIt should be noted that over time Crown makes im-provements and changes to their products for v

Macro-Tech 2400 Amplifier Service Manual9Theoryoverdriving the Error Amp. Because the Error Ampamplifies the difference between input and outputsignal