Crown Macro-Tech MA-5002VZ Service Manual

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POWER AMPLIFIER

SERVICE MANUAL

Models:

MA-5002VZ

Some models may be exported under the name Amcron

Telephone: 219-294-8000. Trademark Notice: Grounded Bridge

™

, PIP2

™

and SmartAmp

™

are

trademarks and Amcron

, Crown

, IOC

, IQ System

, Macro-Tech ,

ODEP

and VZ

are

registered trademarks of Crown International, Inc. Other trademarks are the property of their

respective owners.

130446-1

02-00

Rev. A

Table of Contents

Summary of Contents for Crown Macro-Tech MA-5002VZ

Page 1: Power Amplifier
Macro-Tech® POWER AMPLIFIER SERVICE MANUAL Models: MA-5002VZ ® Some models may be exported under the name Amcron © 2000 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-8000. Trademark Notice: Grounded Bridge ™ , PIP2 ™ and SmartAmp ™...
Page 2 130446-1 Rev. A MA-5002VZ 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.
Page 3: Revision History
MA-5002VZ Service Manual 130446-1 Rev. A Revision History Comments Revision Number Date 02-2000 Initial Printing Rev. A ©2000 Crown International, Inc.
Page 5: Table Of Contents
MA-5002VZ Service Manual 130446-1 Rev. A Table of Contents 1 Introduction ................1-1 1.1 Introduction ................1-1 1.2 The MA “02” Series Amplifiers ........... 1-1 1.3 Scope ..................1-1 1.4 Warranty ..................1-1 2 Specifications ................. 2-1 3 Voltage Conversion ..............3-1 4 Circuit Theory ................
Page 6: Table Of Contents
130446-1 Rev. A MA-5002VZ Service Manual Table of Contents 5 Maintenance ................5-1 5.1 Cautions and Warnings .............. 5-1 5.2 General Information ..............5-1 5.3 Troubleshooting ................ 5-1 5.3.1 Pre-AC-Checks ..............5-1 5.3.2 LED Checks ..............5-2 5.4 Test Procedures ................. 5-4 5.4.1 Standard Initial Conditions ..........
Page 7: Introduction
MA-5002VZ Service Manual 130446-1 Rev. A phonic capability. The MA-5002VZ includes additional 1 Introduction features not found on other Macro-Tech series models including switchable compression, switchable loud- speaker offset integration (LOI), and I indi- LOAD LIMIT 1.1 Introduction cation. This manual contains complete service information on 1.3 Scope the Crown ®...
Page 8 130446-1 Rev. A MA-5002VZ Service Manual Figure 1.1 MA-5002VZ Front and Rear Views 1-2 Introduction ©2000 Crown International, Inc.
Page 9: Specifications
MA-5002VZ Service Manual 130446-1 Rev. A Controls Compressor: A three-position back-panel switch is used to control 2 Specifications each channel’s input compressor. The “fast” setting provides an attack time of 4 milliseconds and a release time of 300 millisec- onds; the “slow” setting provides an attack time of 12 milliseconds and a release time of 600 milliseconds;...
Page 10: Specifications
130446-1 Rev. A MA-5002VZ Service Manual DC Output Offset: ±10 millivolts. And input overload protection is provided by the input compres- sors and current-limiting resistance at the input. Output Signal Turn On: The four second turn-on delay prevents dangerous turn- Stereo: Unbalanced, two-channel.
Page 11 MA-5002VZ Service Manual 130446-1 Rev. A Figure 2.3 Typical Frequency Response Figure 2.4 Typical Damping Factor Figure 2.5 Typical Output Impedance Specifications 2-3 ©2000 Crown International, Inc.
Page 12 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 2-4 Specifications ©2000 Crown International, Inc.
Page 13: Voltage Conversion
MA-5002VZ Service Manual 130446-1 Rev. A INSTRUCTIONS 3 Voltage Conversion CAUTION: Because there is a risk of electric shock, only a qualified technician should change the line voltage configuration. The MA-5002VZ power amplifier may easily be con- verted to a variety of AC mains voltages and may oper- ate at 50 or 60 Hz.
Page 14 130446-1 Rev. A MA-5002VZ Service Manual CAUTION: To reduce the risk of fire, replace F700, F701, & F702 with the same type fuse. Use a 30 A fuse for F700 & F701 and a 1A fuse for F701 for ALL voltage configurations.
Page 15: Circuit Theory
130446-1 Rev. A MA-5002VZ Service Manual is called Loudspeaker Offset Integration (LOI). The LOI 4 Circuit Theory circuit, when switched on, prevents excessive bass fre- quency cone excursions below the audible frequency range. It operates essentially as a band-pass filter. The low frequencies are rolled off at 18 dB/octave with a 4.1 Overview –3 dB corner of 35 Hz (Butterworth response).
Page 16: Grounded Bridge Operation
130446-1 Rev. A MA-5002VZ Service Manual Figure 4.1 Simplified Grounded Bridge by the output stages rather than the power supply. ducts to deliver –Vcc to the load and the high side NPN Composite devices are constructed to function as gi- stage is off.
Page 17: Output Stage Circuitry
130446-1 Rev. A MA-5002VZ Service Manual full (negative) potential developed by the power sup- Q513, Q515, Q517, and Q536 are the HS NPN output ply. devices. These devices are biased class B, in soft cut- off. Together with driver and pre-driver, they function as The total effect is to deliver a peak to peak voltage to a three-deep Darlington.
Page 18: Vz Power Supply
130446-1 Rev. A MA-5002VZ Service Manual 4.3 VZ Power Supply The VZ supply is divided into segments to better match the voltage and current requirements of the power tran- VZ means Variable Impedance and is the name of sistors. Remember that audio signals like music are Crown’s patented articulated power supply technology.
Page 19: Vz Supply Circuitry
130446-1 Rev. A MA-5002VZ Service Manual VZ Power Supply & Grounded Bridge Output Topology +Vcc (Positive Rail) Input signal Load (speaker) Inverting Op-amp – – -Vcc (Negative Rail) HIGH SIDE LOW SIDE Parallel = Series = – R = Switch Resistance Figure 4.3 Simplified VZ Supply in Operation ite switch) are turned on.
Page 20: Odep Theory
130446-1 Rev. A MA-5002VZ Service Manual U702A. S700, physically accessible from behind the The ODEP circuitry actually comes in two parts, one front grille, determines the VZ operating mode. In high positive and the other negative. For the purposes of voltage mode (Q42930-0 Control Module only) the out- this discussion, only the channel 1 ODEP circuitry is put of U702A is held low.
Page 21: Odep Circuitry
130446-1 Rev. A MA-5002VZ Service Manual Channel 1 ODEP Circuitry shown ODEP Inputs: ODEP Outputs: Temperature Calibrated Temperature, for monitoring ±VCC ±ODEP Level, for monitoring Output Current ±ODEP Level, for Bi-ODEP control of VZ Supply ±ODEP Level, to limit drive at ±Voltage Translators (±LH) ±ODEP Level, to limit Low Side Bias (±LL) ODEP Indication (front panel LEDs) Off Main...
Page 22: Front End Theory
130446-1 Rev. A MA-5002VZ Service Manual ing to case, and case to heatsink under both static and 4.5.1 Balanced Gain Stage dynamic conditions. The Balanced Gain Stage (BGS) amplifier U100A con- verts the input audio from a balanced configuration to The output of the positive ODEP amplifier drives +ODEP single-ended with (electrical) unity gain.
Page 23: Loudspeaker Offset Integration
130446-1 Rev. A MA-5002VZ Service Manual signal information. An error signal (spike) is produced 4.5.7 Inverting Stages any time the shape of the output waveform differs from Overall, the amplifier is non-inverting. Four stages within the output of the Variable Gain Stage and LOI by more the amplifier, however, do invert the audio signal for a than 0.05%.
Page 24 130446-1 Rev. A MA-5002VZ Service Manual POWER XFMR POWER Portion of Main Module +10.4V RELAY RELAY DRIVE K700 +15V FAULT VOLTAGE DC/LFI DIVIDER OV/TSW WITH C120 POSITOR PWRLOSS 5.0 OHM STANDBY SOFT-START DRIVER DRIVER -15V POWER SWITCH DC PULSE TO CH 2 SOFT-START DRIVER WIDTH CONTROL +15V...
Page 25: Over-Voltage
130446-1 Rev. A MA-5002VZ Service Manual The output of U701A controls the Soft-start. Refer to fields have built up in the high voltage supply, and the Figure 4.6 for a graphic of Soft-start operation. main relay closes. At time 3 a protective action occurs; note that the DC supply remains.
Page 26: Output Thermal
130446-1 Rev. A MA-5002VZ Service Manual shutdown. A low will also cause the DC/LF red LED on the main module to light. DC/LF is a non-latching pro- DC PULSE WIDTH tection mechanism. CONTROL SOFT-START +15V CONTROL 4.6.4 Common Mode Output Current SOFT- START Common mode current in the output stage...
Page 27: Power Loss
130446-1 Rev. A MA-5002VZ Service Manual 4.6.8 Power Loss fier thermal reserve. The LEDs are amber (although they may have a reddish appearance) and are normally on. The MA-5002VZ has the ability to sense a “brown-out” They dim and/or extinguish in the event that the condition on the AC service.
Page 28: Parallel Mono
130446-1 Rev. A MA-5002VZ Service Manual is balanced, and channel 1 hot output is connected to The channel 1 and 2 amplifier hot outputs must be load hot (+), channel 2 hot output is connected to load shorted by an external shorting buss (10 AWG or larger). return (–...
Page 29: Maintenance
MA-5002VZ Service Manual 130446-1 Rev. A toms. After troubleshooting and repair (or as a part of), the final step is to thoroughly test the amplifier to be 5 Maintenance certain that it meets the factory specifications. Test pro- cedures in Section 5.4 will help you do this as well as aid you in locating the cause of problem(s).
Page 30: Schematics
130446-1 Rev. A MA-5002VZ Service Manual partial, if not complete, repair before power is ever ap- d.) If a failure is found in any LVAs, checks plied. These checks are designed to find problems in should continue up onto the main module in the volt- the output stages.
Page 31 MA-5002VZ Service Manual 130446-1 Rev. A Indicator Condition Cause ODEP One OFF At any time the main relay is off (open), the ODEP indicator is also SPI/IOC Both OFF held off. Any protective action which will result in amplifier shut- Both OFF down will cause the ODEP indicator on the affected channel to be LOAD...
Page 32: Test Procedures
130446-1 Rev. A MA-5002VZ Service Manual Indicator Condition Cause ODEP Both OFF Both ODEP indicators off coupled with both IOC and DC/LF indi- SPI/IOC Both ON cations indicates a DC offset at both outputs. If possible, inquire if Both OFF the user was operating the amplifier in a mono mode when the LOAD LIMIT...
Page 33 MA-5002VZ Service Manual 130446-1 Rev. A WARNING: Do not connect any load to the MA-5002VZ power amplifier during these tests until specifically instructed to do so. Type of Test Input Signal and Comments or Adjustment Load Parameters 1. Turn-on Delay No Signal Check for a delay of approximately 4 seconds from No Load...
Page 34 130446-1 Rev. A MA-5002VZ Service Manual Type of Test Input Signal and Comments or Adjustment Load Parameters 5. Low Side Bias No Signal Bias voltage is set while the amplifier is at room tem- No Load perature. If the amplifier is hot from prior testing for repair or other purposes, it should be set aside until it has cooled before continuing with this check.
Page 35 MA-5002VZ Service Manual 130446-1 Rev. A WARNING: Many of the following checks are done by connecting a resistive load to the output of the amplifier. Use caution and follow check-out procedures carefully to ensure correct results. These tests require a resistive load capable of over 3000 W continuous into as low as 1 ohm. WARNING: The MA-5002VZ is capable of drawing in excess of 80 Amperes of current from 120VAC Mains when loaded to 2 ohms per channel and with both channels driven by a 1 kHz sine wave.
Page 36 130446-1 Rev. A MA-5002VZ Service Manual Type of Test Input Signal and Comments or Adjustment Load Parameters 10. Parallel Mono 1-kHz Sine Wave Note: Always turn power to the amplifier off prior to No Load changing the position of the Stereo/Mono Switch. With the dual/mono switch in the parallel mono position, insert a .775 Vrms 1-kHz signal into channel one.
Page 37 MA-5002VZ Service Manual 130446-1 Rev. A Type of Test Input Signal and Comments or Adjustment Load Parameters 14. Over-voltage No Signal With the amplifier powered from a variac, increase No Load AC mains line voltage to 12% above the line voltage for which the amplifier is wired.
Page 38 130446-1 Rev. A MA-5002VZ Service Manual Type of Test Input Signal and Comments or Adjustment Load Parameters 19. LED Check, 1-kHz Sine/Sq Wave Turn the amplifier on after being off at least 10 sec- Current Limit Check Various Loads onds. Observe that the ODEP lights come on after about 4 seconds.
Page 39 MA-5002VZ Service Manual 130446-1 Rev. A Type of Test Input Signal and Comments or Adjustment Load Parameters 22. 1 kHz Power + THD 1-kHz Sine Wave Note: Operation with a sine wave into a low imped- Various Loads ance load, when operating at AC voltages of less than 200VAC, will cause the 30 A fuses to blow after 30 to 60 seconds.
Page 40 130446-1 Rev. A MA-5002VZ Service Manual Type of Test Input Signal and Comments or Adjustment Load Parameters Next configure the amp for parallel mono operation. With the input signal now present on channel one only, load channel one output with 8 ohms and channel two with 2 ohms.
Page 41: Shipment
MA-5002VZ Service Manual 130446-1 Rev. A Type of Test Input Signal and Comments or Adjustment Load Parameters 25. Noise No Signal Make sure the sensitivity switches are in the 26-dB No Load position and the level controls are fully clockwise. Ter- minate the input with a 600-ohm load.
Page 42 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 5-14 Maintenance ©2000 Crown International, Inc.
Page 43: Ordering And Receiving Parts
MA-5002VZ Service Manual 130446-1 Rev. A 6.2.1 Terms 6 Parts Normal terms are prepaid. Net-30 Days only applies to those having pre-established accounts with Crown. The Crown Parts Department does accept Visa or Master Card. If prepaying, the order must be packed and 6.1 General Information weighed before a total bill can be established, after which an amount due will be issued and shipment made...
Page 44 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 6-2 Parts ©2000 Crown International, Inc.
Page 45: Exploded View Parts
130446-1 Rev A MA-5002VZ Service Manual 7 Exploded View Parts 7.1 General Information This chapter includes a mechanical part list for this product. All serviceable parts and assemblies will have a Crown Part Number (CPN) listed in this chapter. 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.
Page 46 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.1 Main Chassis Exploded View 7-2 Exploded View Parts ©2000 Crown International, Inc.
Page 47 130446-1 Rev A MA-5002VZ Service Manual 7.1 Main Chassis Assembly Item # QTY Part Number Description Notes Front Chassis Assembly See Section 7.2 Transformer Assembly See Section 7.6 F12701-3 Chassis Ch 1 Capacitor Assembly See Section 7.7 F12567J7 Bottom Cover Terminator Assembly See Section 7.9 Output Assembly...
Page 48 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.2 Front Chassis Assembly 7-4 Exploded View Parts ©2000 Crown International, Inc.
Page 49 130446-1 Rev A MA-5002VZ Service Manual 7.2 Front Chassis Assembly Item # QTY Part Number Description Notes F12701-3 Chassis A10089-11032 Screw, 10-32 X 2 A10094-8 Washer, #10 Int. Tooth A10094-5 Washer, #8 Int. Tooth C 8874-7 Screw, 8-18 X .375 Sht mtl A10092-10607 Screw, 6-32 X .437 Socket Transformer Bracket...
Page 50 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.3 Middle Chassis Assembly 7-6 Exploded View Parts ©2000 Crown International, Inc.
Page 51 130446-1 Rev A MA-5002VZ Service Manual 7.3 Middle Chassis Assembly Item # QTY Part Number Description Notes F12701-3 Chassis Divider Assembly See Section 7.5 D 7927-3 Capacitor Holder, Inner D 7928-1 Capacitor Holder, Outer M46664-5 Ch 2 Bi-Level Switch Assby See Section 7.8 D 7870-5 Valox Washer...
Page 52 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.4 Rear Chassis Assembly 7-8 Exploded View Parts ©2000 Crown International, Inc.
Page 53 130446-1 Rev A MA-5002VZ Service Manual 7.4 Rear Chassis Assembly Item # QTY Part Number Description Notes F12176J7 Top Cover Main Board Tray Assembly See Section 7.11 128302-1 Back Panel F12302J9 Box Shield Output post protective cover 102745-1 PIP2-FXQ C 8874-7 Screw, 8-18 X .375 Sht Mtl A10089-70806 Screw, 8-32 X .375...
Page 54 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.5 Chassis Divider (Fan) Assembly 7-10 Exploded View Parts ©2000 Crown International, Inc.
Page 55 130446-1 Rev A MA-5002VZ Service Manual 7.5 Chassis Divider (Fan) Assembly Item # QTY Part Number Description Notes 100111-1 Divider Plate C 7858-1 D 7883-8 Transformer Low Voltage Transformer C 9069-3 Bushing, Universal 0.875 A10106-70806 Screw, #8 X .37 Hex Washer Head Exploded View Parts 7-11 ©2000 Crown International, Inc.
Page 56 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.6 Transformer Assembly 7-12 Exploded View Parts ©2000 Crown International, Inc.
Page 57 130446-1 Rev A MA-5002VZ Service Manual 7.6 Transformer Assembly Item # QTY Part Number Description Notes C10332-2 Bridge Rectifier, 50A EDI Control Module See Section 8. Q42929-2 Display Module See Section 8. C 8852-3 0.5" PC Board Support F12813-6 XFMR/Sub-front Bracket D 9019-7 Main Power Toroid XFMR C 8919-0...
Page 58 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.7 Channel 1 Bi-Level Switch Assembly 7-14 Exploded View Parts ©2000 Crown International, Inc.
Page 59 130446-1 Rev A MA-5002VZ Service Manual 7.7 Ch 1 Bi-Level Switch Assembly (M46665-2) Item # QTY Part Number Description Notes D 7882-0 15000µF Capacitor C810, C812 P10357-5 Insulator: Ch 1 & 2 #1 M21070-4 Plate: Ch 1 -Vcc #1 D 7821-8 Insulator: Ch 1 #2 C 6541-4 Torque Spreader...
Page 60 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.8 Channel 2 Bi-Level Switch Assembly 7-16 Exploded View Parts ©2000 Crown International, Inc.
Page 61 130446-1 Rev A MA-5002VZ Service Manual 7.8 Ch 2 Bi-Level Switch Assembly (M46664-5) Item # QTY Part Number Description Notes D 7882-0 15000µF Capacitor C800, C802 P10357-5 Insulator: Ch 1 & 2 #1 M21074-6 Plate: Ch 2 -Vcc #1 D 7824-2 Insulator: Ch 2 #2 C 6541-4 Torque Spreader...
Page 62 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.9 PIP Terminator Shelf Assembly 7-18 Exploded View Parts ©2000 Crown International, Inc.
Page 63 130446-1 Rev A MA-5002VZ Service Manual 7.9 PIP Terminator Shelf Assembly Item # QTY Part Number Description Notes A10086-10604 6-32-.25 Machine Screw Phillips, round-head A10094-4 #6 Int. Star Washer Current Sense Module See Section 8 C 7705-4 Cable Clamp Current Sense Module See Section 8 C 8823-4 0.125”...
Page 64 MA-5002VZ Service Manual 130446-1 Rev A 7.10 PIP Terminator Shelf Assembly, View "A" (USA Units only) Item # QTY Part Number Description Notes C 8835-8 .25-32 Nut A10094-9 Lockwasher, .25 Int. Star M21078-7 Terminator Bar D 7924-0 Bushing, Steel D 7816-8 Terminator Panel C 8794-7 Un-insulated Banana Jack...
Page 65 130446-1 Rev A MA-5002VZ Service Manual 7.11 Main Board Tray Assembly Item # QTY Part Number Description Notes 100110-1 Main Board Tray See Section 8 Main Module See Section 8. A10094-4 #6 Int. Star Washer A10086-10604 6-32x.25 Machine Screw Phillips, round-head Figure 7.11 Main Module Tray Assembly Exploded View Parts 7-21 ©2000 Crown International, Inc.
Page 66 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.12 Output Assembly 7-22 Exploded View Parts ©2000 Crown International, Inc.
Page 67 130446-1 Rev A MA-5002VZ Service Manual 7.12 Output Assembly (Channels 1 & 2 Identical) Item # QTY Part Number Description Notes C 8187-4 NPN Outputs, C 8188-2 PNP Outputs, F12154-5 Heatsink M21188-4 Flex Bar Fastener Negative Emitter Module See Section 8. Negative Output Module See Section 8.
Page 68 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.13 Wiring Diagram #1 7-24 Exploded View Parts ©2000 Crown International, Inc.
Page 69 130446-1 Rev A MA-5002VZ Service Manual Figure 7.14 Wiring Diagram #2 Exploded View Parts 7-25 ©2000 Crown International, Inc.
Page 70 MA-5002VZ Service Manual 130446-1 Rev A Figure 7.15 Wiring Diagram #3 7-26 Exploded View Parts ©2000 Crown International, Inc.
Page 71 130446-1 Rev A MA-5002VZ Service Manual Interconnect Cables Designation Part Number Description Notes D 9236-7 20 Wire Ribbon Cable PIP2 D 9235-9 18 Wire Ribbon Cable PIP2 D 7886-1 16 Wire Ribbon Cable Main to Control to Display J500 D 7889-5 16 Wire Ribbon Cable Main to Ch 1 Output P500 (top) J501...
Page 72 MA-5002VZ Service Manual 130446-1 Rev A This page intentionally left blank 7-28 Exploded View Parts ©2000 Crown International, Inc.
Page 73: Module And Schematic Information
MA-5002VZ Service Manual 130446-1 Rev. A 8.2.6 Control PWA 8 Module and Schematic 127488-2 Information Control PWA on 127917-1 PWB. 8.2.7 Display PWA 8.1 General Information Q42929-2 The schematics referenced and provided are repre- Display PWA on D7845-7 PWB. sentative only. There may be slight variations between amplifier to amplifier.
Page 74 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 8-2 Module and Schematic Information ©2000 Crown International, Inc.
Page 75: Module Parts
MA-5002VZ Service Manual 130446-1 Rev. A 9 Module Parts 9.1 General Information This chapter includes electrical parts lists for this prod- uct. All serviceable parts and assemblies will have a Crown Part Number (CPN) listed in this chapter. 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.
Page 76 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 9-2 Module Parts ©2000 Crown International, Inc.
Page 84 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 9-10 Module Parts ©2000 Crown International, Inc.
Page 102 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 9-28 Module Parts ©2000 Crown International, Inc.
Page 103 130446-1 Rev. A MA-5002VZ Service Manual 125903-4 PWA Component Map (Component Side) Module Parts 9-29 ©2000 Crown International, Inc.
Page 104 MA-5002VZ Service Manual 130446-1 Rev. A This Page Intentionally Left Blank 9-30 Module Parts ©2000 Crown International, Inc.
Page 113 130446-1 Rev. A MA-5002VZ Service Manual 127488-2 PWA Component Map (Component Side) Module Parts 9-39 ©2000 Crown International, Inc.
Page 114 MA-5002VZ Service Manual 130446-1 Rev. A This Page Intentionally Left Blank 9-40 Module Parts ©2000 Crown International, Inc.
Page 118 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 9-44 Module Parts ©2000 Crown International, Inc.
Page 123 130446-1 Rev. A MA-5002VZ Service Manual Q42929-2 PWA Component Map (Component Side) Module Parts 9-49 ©2000 Crown International, Inc.
Page 124 MA-5002VZ Service Manual 130446-1 Rev. A This Page Intentionally Left Blank 9-50 Module Parts ©2000 Crown International, Inc.
Page 125 MA-5002VZ Service Manual 130446-1 Rev. A Q42934-2 Negative Emitter PWA PWB: P10342-7, Schematic: J0488-7 Circuit Component Part Applicability Designation Description Number & Notes Capacitors C513 0.022 µfd C 5671-0 C521 0.022 µfd C 5671-0 Diodes D508 MR822 C 8383-9 D509 MR822 C 8383-9 Resistors...
Page 126 130446-1 Rev. A MA-5002VZ Service Manual PWA Q42934-2 Component Map (Component Side) 9-52 Module Parts ©2000 Crown International, Inc.
Page 127 MA-5002VZ Service Manual 130446-1 Rev. A Q42935-9 Positive Emitter PWA PWB: P10336-9, Schematic: J0488-7 Circuit Component Part Applicability Designation Description Number & Notes Capacitors C512 0.022 µfd C 5671-0 C520 0.022 µfd C 5671-0 Diodes D506 MR822 C 8383-9 D507 MR822 C 8383-9 Resistors...
Page 128 130446-1 Rev. A MA-5002VZ Service Manual PWA Q42935-9 Component Map (Component Side) 9-54 Module Parts ©2000 Crown International, Inc.
Page 133 MA-5002VZ Service Manual 130446-1 Rev. A PWA Q43293-2 Component Map (Component Side) Module Parts 9-59 ©2000 Crown International, Inc...
Page 134 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 9-60 Module Parts ©2000 Crown International, Inc.
Page 138 130446-1 Rev. A MA-5002VZ Service Manual PWA Q43294-0 Component Map (Component Side) 9-64 Module Parts ©2000 Crown International, Inc.
Page 139 MA-5002VZ Service Manual 130446-1 Rev. A 10 Schematics The schematics referenced and provided are repre- sentative only. There may be slight variations between amplifier to amplifier. These schematics are intended to be used for troubleshooting purposes only. 102396 125901 128112 128273 J0488-7 J0491-1...
Page 140 130446-1 Rev. A MA-5002VZ Service Manual This page intentionally left blank 10-2 Schematics ©2000 Crown International, Inc.

Crown Macro-Tech MA-5002VZ Service Manual

1 Introduction

2 Specifications

3 Voltage Conversion

4 Circuit Theory

5 Maintenance

7 Exploded View Parts

8 Module and Schematic Information

9 Module Parts

10 Schematics

Quick Links

POWER AMPLIFIER

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Summary of Contents for Crown Macro-Tech MA-5002VZ

Table of Contents