Crown Macro-Tech MA-5002VZ

Module and Schematic Information 8-1
130446-1 Rev. A
MA-5002VZ Service Manual
©2000 Crown International, Inc.
8.1 General Information
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.
Note on circuit board designations: Crown circuit boards
are referenced with a PWA and/or PWB part number.
PWA stands for Printed Wire Assembly. This is the com-
pleted circuit board with all components assembled.
PWB stands for Printed Wire Board. This is the circuit
board only, without components.
8.2 Modules
8.2.1 Main PWA
125903-4
Main PWA on 125902-4 PWB.
8.2.2 Positive Output PWA: (left and right are identical)
Q43293-2
Positive Output PWA on D8526-2 PWB.
8.2.3 Negative Output PWA: (left and right are identical)
Q43294-0
Negative Output PWA on D8527-0 PWB.
8.2.4 Positive Emitter PWA: (left and right are identical)
Q42935-9
Positive Emitter PWA on P10336-9 PWB.
8.2.5 Negative Emitter PWA: (left and right are identical)
Q42934-2
Negative Emitter PWA on P10342-7 PWB.
8.2.6 Control PWA
127488-2
Control PWA on 127917-1 PWB.
8.2.7 Display PWA
Q42929-2
Display PWA on D7845-7 PWB.
8.2.8 Current Sense PWA:
102397-2
Current Sense PWA on 102395-2 PWB.
8.2.9 Line Filter PWA (CE Models Only):
128273-2
Line Filter PWA on 128272-2 PWB.
8.3 Schematic Diagrams:
8.3.1 Main PWA
125901
8.3.2 Positive Output PWA
J0488-7
8.3.3 Negative Output PWA
J0488-7
8.3.4 Positive Emitter PWA
J0488-7
8.3.5 Negative Emitter PWA
J0488-7
8.3.6 Control PWA
128112-2
8.3.7 Display PWA
J0491-1
8.3.8 Terminator PWA
102396
8 Module and Schematic
Information
8.3.9 Line Filter PWA
128273-2