Module And Schematic Information - Crown Macro-Tech MA-600 Service Manual

Module History
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.
Output Modules: (left and right are identical)
Q42647-0
Original output module on P10137-1. No longer avail-
able. Use Q42717-1 as service replacement.
Q42717-1
Output module on P10233-8 board.
Q42871-6
Output module on P10305-4 board.
Q42968-0
Output module on P10341-9 board. No longer avail-
able. Use Q43202-3 as service replacement.
Q43202-3
Output module on P10397-1 board.
Main Modules:
Q42666-0
Main module on D 6721A9 board. No longer available.
Use Q42776-7 as service replacement.
Q42735-3
Main module on D 6978-7 board. No longer available.
Use Q42776-7 as service replacement.
Q42755-1
Main module on D 7150-2 board. No longer available.
Use Q42776-7 as service replacement.
Q42776-7
Main module on D 7251-8 board. Used as a replace-
ment for all older modules.
Q42984-7
Main module on D 7911-7 board. No longer available
use Q43032-4 as service replacement.
Q43039-9
Main module on D 7993-5 board. No longer available
use Q43032-4 as service replacement.
Q43032-4
Main module on D 7993-5 board.
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Macro-Tech 600 Amplifier Service Manual

Module and Schematic Information

Fuse Module:
M43535-0 (120V 60Hz U.S. Units with 30A relay)
Fuse module on P10386-4 board with 30A relay.
M44213-3 (120V 60Hz Units with Omron 10A relay)
Fuse module on P10212-2 board with Omron 10A
relay.
Q42862-5 -Channel 2 (Universal Volt Units Only)
Fuse module on P10353-4 board.
Q42863-3 -Channel 1 (Universal Volt Units Only)
Fuse module on P10293-2 board.
Display Module:
Q42553A8
Original display module. Use Q42855-9 as a service
replacement.
Q42855-9
Display module. On D 6260C4 board.
Q43433-4
Display module. On D 8897-7 board.
Schematic Information
The schematics provided are representative only.
There may be slight variations between amplifier to
amplifier. These schematics are intended to be used
for troubleshooting purposes only.
For amplifiers with main boards D 6721A9, D 6978-7
or D 7150-2 refer to schematic number J0244-4, and
display schematic J0242-8.
For amplifiers with main board D 7251-8 refer to
schematic number J0389-7, and display schematic
J0242-8.
For amplifiers with main boards D 7911-7 or D 7993-
5 refer to schematic number J0629-6, and display
schematic J0703-9.