Macro-Tech 600 Amplifier Service Manual POWER AMPLIFIER SERVICE MANUAL MACRO-TECH -600 ® ©1996 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 Macro-Tech®, ODEP® and Crown® are registered trademarks of Crown International, Inc.
Macro-Tech 600 Amplifier Service Manual The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact the Crown Technical Support Group. Mail: P.O. Box 1000 Elkhart IN 46515-1000 Shipping: 57620 C.R.
Macro-Tech 600 Amplifier Service Manual Table of Contents Introduction ............................................................. 4 Parts Information ..................................................... 5 Specifications .......................................................... 6 Voltage Conversion ................................................. 7 Circuit Theory .......................................................... 8 Electrical Checkout Procedures ............................
Macro-Tech 600 Amplifier Service Manual Introduction This manual contains service information on Crown power amplifiers. It is designed to be used in conjunction with the applicable Owner's Manual. However, some important information is duplicated in this Service Manual in case the Owner's Manual is not readily available.
Macro-Tech 600 Amplifier Service Manual Parts Information General Information Later sections include both mechanical and electrical parts lists for this product. The parts listed are current as of the date printed. Crown reserves the right to modify and improve its products for the benefit of its customers. Part Numbering Systems As of the printing of this manual, Crown is using two numbering systems. The elder system always uses eight characters. The first character is a letter.
Macro-Tech 600 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.
Macro-Tech 600 Amplifier Service Manual Voltage Conversion The 120 Volt 60 Hz version, sold in the United States, is not voltage selectable. It does not have voltage selection boards. This version is to be used only with 120 Volts, 60Hz. All other versions of the Macro Tech 600 use voltage selection boards. The following chart indicates which jumpers are used for different voltages. Note that the fuses and transmotor may need to be changed to accommodate different voltages.
Macro-Tech 600 Amplifier Service Manual Theory Overview It should be noted that over time Crown makes improvements and changes to their products for various reasons. This manual is up to date as of the time of writing. For additional information regarding these amplifiers, refer to the applicable Technical Notes provided by Crown for this product. This section of the manual explains the general operation of a typical Crown power amplifier. Topics covered include Front End, Grounded Bridge, and ODEP.
Macro-Tech 600 Amplifier Service Manual Theory limiting transistors and control/protection transistors. The ODEP transistors steal drive as dictated by the ODEP circuitry (discussed later). The control/protection transistors act as switches to totally shunt audio to ground during the turn-on delay, or during a DC/LF or Fault protective action. overdriving the Error Amp.
Macro-Tech 600 Amplifier Service Manual Theory and high efficiency. High Side (HS) The High Side (HS) of the bridge operates much like a conventional bipolar push-pull output configuration. As the input drive voltage becomes more positive, the HS NPN conducts and delivers positive voltage to the load. Eventually the NPN devices reach full conduction and +Vcc is across the load. At this time the HS PNP is biased off.
Macro-Tech 600 Amplifier Service Manual Theory with respect to ground, but ±Vcc remain constant with respect to each other. This allows the power supply to deliver +Vcc and -Vcc from the same bridge rectifier and filter as a total difference in potential, regardless of their voltages with respect to ground. The LS uses inverted feedback from the HS output to control the ground reference for the rails (±Vcc).
Macro-Tech 600 Amplifier Service Manual Theory BGS BALANCED INPUTS VGS -1 POSITIVE HIGH SIDE OUTPUT NPN STAGE +LVA -1 +VOLTAGE TRANSLATOR ERROR AMP OUTPUT DEVICE EMULATION PROTECTION HIGH SIDE BIAS SERVO NEGATIVE HIGH SIDE OUTPUT PNP STAGE -LVA -1 -VOLTAGE TRANSLATOR MAIN NEGATIVE FEEDBACK (NFb) LOOP POSITIVE LOW SIDE OUTPUT NPN STAGE -1 INVERTING BRIDGE BALANCE LOW SIDE BIAS DIODE STRING NEGATIVE LOW SIDE OUTPUT PNP STAGE Figure 3.
Macro-Tech 600 Amplifier Service Manual Electrical Checkout Procedures General Information The following test procedures are to be used to verify operation of this amplifier. DO NOT connect a load or inject a signal unless directed to do so by the procedure. These tests, though meant for verification and alignment of the amplifier, may also be very helpful in troubleshooting. For best results, tests should be performed in order. All tests assume that AC power is from a regulated 120 VAC source.
Macro-Tech 600 Amplifier Service Manual Electrical Checkout Procedures Test 6: Voltage Gain Test 10: Slew Rate & 10 kHz Square Wave Spec 26dB Gain: Gain of 20.0 ±3%. Spec 0.775V Sensitivity: ±6%. Spec 1.4V Sensitivity: +12%/–6%. Initial Conditions: Controls per standard. Procedure: No load connected. Inject a 0.775 VAC 1 kHz sine wave with the Sensitivity Switch in the 26 dB position. Measure 15.5 VAC ±0.5 VAC at the amplifier output. Inject a 0.
Macro-Tech 600 Amplifier Service Manual Electrical Checkout Procedures Procedure Torture: Load each channel with the primary (red and black leads) of a DC-300A transformer (D 5781-6). Inject a 15 Hz sine wave at sufficient output level to cause 3 to 5 flyback pulses, for 10 seconds. Procedure Short: Inject a 60 Hz sine wave at 15 VAC output. After establishing signal, short the output for 10 seconds.
Macro-Tech 600 Amplifier Service Manual Electrical Checkout Procedures portion) and measure less than 0.05% IMD. Test 20: Clipping Spec: No protective action during test. Initial Conditions: Controls per standard. Procedure: Load each channel to 8 ohms. Inject a 1 kHz sine wave at each input and drive output 6 dB into clip for 10 seconds. The amplifier should not activate any protective circuits (ODEP, Fault, or LF Protection).
Macro-Tech 600 Amplifier Service Manual Parts List (Non-Module) Supplimental Items CPN D 4137-2 C 3342-0 A10087-71012 K80449D2 ITEM Nylon Thumbscrew Washer Feet, Black Self-Stick 10-32 .75 Machine (Rack Screw) MA Series Owners Manual QTY 4 4 4 1 ITEM MA Fuse Module Assembly (120V, 60Hz Units Only) Fuse Board Insulator Fuse Module, Ch 1 (50-60 Hz Units) Fuse Module, Ch 2 (50-60 Hz Units) 7 Amp Fuse (100-120V Units) 5 Amp Fuse (200-240V Units) .
Macro-Tech 600 Amplifier Service Manual Parts List (Non-Module) Output Assembly (cont.) CPN D 8197-2 C 9387-9 D 8774-8 F12019-0 C 8813-5 B 5842-8 C 5826-0 B 5464-1 C 8573-5 C 8574-3 M20586-0 M20587-8 D 7665-9 D 7666-7 M21324-5 ITEM Paper Shroud Plasti-Rivit PTC, 95 Deg.
Macro-Tech 600 Amplifier Service Manual Parts List (Non-Module) Chassis Front Assembly (cont.) CPN M46054-9 M46504-3 ITEM QTY Grill Assembly. Includes Grill and Filters. 1 Btm Grill Assembly. Includes Grill, Filters, and Btm Cvr 1 Note: Old style grills with the one piece filter behind the grill are no longer available. If an old amplifer needs a new grill, the only option is to convert it to the new style by ordering part number M46504-3, which includes the bottom cover.
Macro-Tech 600 Amplifier Service Manual Module and Schematic Information Module History Fuse Module: Since the introduction of the MA-600 amplifier there have been several updates and revisions. Some of these changes called for new modules. The following is a list of all modules used up to this date, February 1996. M43535-0 (120V 60Hz U.S. Units with 30A relay) Fuse module on P10386-4 board with 30A relay.
Macro-Tech 600 Amplifier Service Manual Fuse Module Parts Lists M43535-0 Fuse Module (30A Relay) Q42862-5 Channel 2 Fuse Module CPN C 5060-6 A10266-1001 C 3181-2 C 7649-4 C 9592-4 C 9787-0 P10386-4 CPN A10124-24 A10266-1001 C 2851-1 C 5060-6 C 7526-4 C 7649-4 C 7817-7 C 7823-5 C 7873-0 C 8537-0 C 8539-6 P10353-4 Item Qty PC Mount Fuse Clip 6 10 Ohm .25W 5% Res. 2 1N4148 Diode 2 .01µF 1KV Disc Cap. 2 .
Macro-Tech 600 Amplifier Service Manual Q42553A8 Display Module (D 6260C4 board) Parts List Capacitors C501 C502 C503 C504 C505 C507 C508 C701 C702 C601 C602 C603 C604 C605 C607 C608 C 6802-0 C 6806-1 C 6806-1 C 6804-6 C 5050-7 C 6809-5 C 6807-9 C 6802-0 C 6802-0 .47µF 50V .01µF 100V .01µF 100V .1µF 100V 4.7µF 100V 220pF 100V .001µF 100V .47µF 50V .
Macro-Tech 600 Amplifier Service Manual Q42855-9 Display Module (D 6260C4 board) Parts List Capacitors C501 C502 C503 C507 C701 C702 C601 C602 C603 C607 Integrated Circuits C 6802-0 C 6806-1 C 6806-1 C 6809-5 C 6802-0 C 6802-0 .47µF 50V .01µF 100V .01µF 100V 220pF 100V .47µF 50V .
Macro-Tech 600 Amplifier Service Manual Q43433-4 Display Module (D 8897-7 board) Parts List Capacitors C501 C502 C503 C507 C701 C702 C703 C704 C601 C602 C603 C607 Integrated Circuits C 6802-0 C 6806-1 C 6806-1 C 6809-5 C 6804-6 C 6804-6 C 6804-6 C 6804-6 .47µF 50V .01µF 100V .01µF 100V 220pF 100V .1µF 50V .1µF 50V .1µF 50V .
Macro-Tech 600 Amplifier Service Manual Q42647-0 Output Module (P10137-1 board) Parts List Capacitors C01 C02 C03 C04 C05 C06 C07 C08 C09 Resistors C 3978-1 C 6804-6 C 6804-6 C 3996-3 C 6807-9 C 6806-1 C 6807-9 C 6809-5 C 6810-3 .047µF .1µF .1µF .0047µF .001µF .01µF .
Macro-Tech 600 Amplifier Service Manual Q42717-1 Output Module (P10233-8 board) Parts List Capacitors C01 C02 C03 C04 C05 C06 C07 C08 C09 Resistors C 3978-1 C 3218-2 C 3218-2 C 8534-7 C 6807-9 C 6806-1 C 6807-9 C 6810-3 C 6809-5 .047µF .22µF .22µF .0047µF .001µF .01µF .
Macro-Tech 600 Amplifier Service Manual Q42871-6 Output Module (P10305-4 board) Parts List Capacitors C01 C02 C03 C04 C05 C06 C07 C08 C09 C43 C 8511-5 C 7964-7 C 7964-7 C 8534-7 C 8534-7 C 6806-1 C 6807-9 C 6810-3 C 6809-5 C 6806-1 .047µF .22µF .22µF .0047µF .0047µF .01µF .001µF 180pF 220pF .
Macro-Tech 600 Amplifier Service Manual Q42968-0 Output Module (P10341-9 board) Parts List Capacitors C01 C02 C03 C04 C05 C06 C07 C08 C09 C43 C 8511-5 C 7964-7 C 7964-7 C 8534-7 C 6807-9 C 6806-1 C 6807-9 C 6810-3 C 6809-5 C 6806-1 .047µF .22µF .22µF .0047µF .001µF .01µF .001µF 180pF 220pF .
Macro-Tech 600 Amplifier Service Manual Q43202-3 Output Module (P10397-1 board) Parts List Capacitors C01 C02 C03 C04 C05 C06 C07 C08 C09 C43 C 8511-5 C 7964-7 C 7964-7 C 8534-7 C 8534-7 C 6806-1 C 6807-9 C 6810-3 C 6809-5 C 6806-1 .047µF .22µF .22µF .0047µF .0047µF .01µF .001µF 180pF 220pF .
Macro-Tech 600 Amplifier Service Manual Q42666-0 Main Module (D 6721A9 board) Parts List Capacitors C1 C2 C3 C4 C5 C6 C100 C101 C103 C104 C105 C106 C108 C112 C113 C114 C115 C116 C117 C118 C122 C124 C125 C127 C128 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C152 C153 C200 C201 C203 C204 C205 C206 C208 C212 C213 C214 C215 C216 C217 C218 C222 C224 C225 C227 C228 C230 C233 C234 C235 C236 C237 C238 C239 C240 C241 C244 C245 C246 C247 C248 C249 C252 C253 C 4303-1 C 3913-8 C 4
Macro-Tech 600 Amplifier Service Manual Q42666-0 Main Module (D 6721A9 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q42735-3 Main Module (D 6978-7 board) Parts List Capacitors C1 C2 C3 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C108 C112 C113 C114 C115 C116 C117 C118 C122 C124 C125 C127 C128 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C152 C153 C200 C201 C203 C204 C205 C206 C208 C212 C213 C214 C215 C216 C217 C218 C222 C224 C225 C227 C228 C230 C233 C234 C235 C236 C237 C238 C239 C240 C241 C244 C245 C246 C247 C248 C249 C252 C253 C 4303-1 C 3913-8
Macro-Tech 600 Amplifier Service Manual Q42735-3 Main Module (D 6978-7 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q42735-3 Main Module (D 6978-7 board) Parts List Cont. Misc. J9 J10 J500 J800 J600 J700 J100 J200 34 C 6871-5 C 6850-9 6 Cond. Connector 4 Pos. Header D 6619-7 10 Inch Ribbon Cable D 6620-5 C 1889-2 C 2176-3 C 3450-1 C 4508-5 C 5341-0 C 5594-4 6 Inch Ribbon Cable 6-32 Hex Nut 6-32 x .
Macro-Tech 600 Amplifier Service Manual Q42755-1 Main Module (D 7150-2 board) Parts List Capacitors C1 C2 C3 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C108 C112 C113 C114 C115 C116 C117 C118 C122 C124 C125 C127 C128 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C152 C153 C200 C201 C203 C204 C205 C206 C208 C212 C213 C214 C215 C216 C217 C218 C222 C224 C225 C227 C228 C230 C233 C234 C235 C236 C237 C238 C239 C240 C241 C244 C245 C246 C247 C248 C249 C252 C253 C 4303-1 C 3913-8
Macro-Tech 600 Amplifier Service Manual Q42755-1 Main Module (D 7150-2 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q42755-1 Main Module (D 7150-2 board) Parts List Cont. Misc. J9 J10 J500 J800 J600 J700 J100 J200 C 6871-5 C 6850-9 6 Cond. Connector 4 Pos. Header D 6619-7 10 Inch Ribbon Cable D 6620-5 C 1889-2 C 2176-3 C 3450-1 C 4508-5 C 5341-0 C 5594-4 6 Inch Ribbon Cable 6-32 Hex Nut 6-32 x .5 Screw 14 Pin Socket 16 Pin Socket TO220 Heatsink #6 Internal Star Washer C 6777-4 C 6778-2 C 6851-7 C 7077-8 D 7150-2 1/4 Phone Jack Phone Jack Cover 5 Position Header 3 Cond.
Macro-Tech 600 Amplifier Service Manual Q42776-7 Main Module (D 7251-8 board) Parts List Capacitors C1 C2 C4 C5 C6 C7 C8 C100 C101 C103 C104 C105 C106 C108 C112 C113 C114 C115 C116 C117 C118 C122 C123 C124 C125 C127 C128 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C 149 C150 C151 C152 C153 38 C200 C201 C203 C204 C205 C206 C208 C212 C213 C214 C215 C216 C217 C218 C222 C223 C224 C225 C227 C228 C229 C230 C233 C234 C235 C236 C237 C238 C239 C240 C241 C244 C245 C246 C247 C248
Macro-Tech 600 Amplifier Service Manual Q42776-7 Main Module (D 7251-1 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q42776-7 Main Module (D 7251-1 board) Parts List Cont. Integrated Circuits U1 U2 U100 U103 U104 C 5095-2 C 5096-0 C 6911-9 C 6910-1 C 6900-2 MC7815 MC7915 UPA75 PNP UPA76 NPN MC34084P C 7593-4 C 4508-5 C 7527-2 C 7592-6 C 7526-4 C 6777-4 D 6619-7 D 6620-5 HDR, 5 PIN 16 PIN Soc HDR, 6 PIN HDR, 4 PIN HDR, 3 PIN PH. JACK 10" Ribbon 6" Ribbon MOUNTS U1, U2: (2) C 1889-2 (2) C 2176-3 (2) C 5341-0 (2) C 5594-4 6-32 NUT 6-32 X .5 HEATSINK Star Wash.
Macro-Tech 600 Amplifier Service Manual Q42984-7 Main Module (D7911-7 board) Parts List Capacitors C1 C2 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 C200 C201 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C222 C223 C224 C229 C230 C233 C234 C235 C236 C237 C238 C239 C240 C24
Macro-Tech 600 Amplifier Service Manual Q42984-7 Main Module (D7911-7 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q42984-7 Main Module (D7911-7 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q43039-9 Main Module (D7993-5 board) Parts List Capacitors C1 C2 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 44 C200 C201 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C222 C223 C224 C229 C230 C233 C234 C235 C236 C237 C238 C239 C240
Macro-Tech 600 Amplifier Service Manual Q43039-9 Main Module (D7993-5 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q43039-9 Main Module (D7993-5 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q43032-4 Main Module (D7993-5 board) Parts List Capacitors C1 C2 C4 C5 C6 C7 C100 C101 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C133 C134 C135 C136 C137 C138 C139 C140 C141 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 C200 C201 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C222 C223 C224 C229 C230 C233 C234 C235 C236 C237 C238 C239 C240 C24
Macro-Tech 600 Amplifier Service Manual Q43032-4 Main Module (D7993-5 board) Parts List Cont.
Macro-Tech 600 Amplifier Service Manual Q43032-4 Main Module (D7993-5 board) Parts List Cont.