Crown Com-Tech CT-400 Wartungshandbuch PDF herunterladen (Seite 19)

Com-Tech 400 Amplifier Service Manual

Module and Schematic Information

Module History

The Com Tech 400B amplifier was introduced in 1990.

Since then there have been several updates and

revisions, some of which called for new modules. The

following is a list of all modules used up to this date,

December 1995.

Output Modules: (left and right are identical)

Q42716-3

Original Output Module on P10233-8 or P10263-5

board.

Q42888-0

Output Module on P10315-3 board.

Q42969-8

Output Module on P10337-7 board. No longer avail-

able. Use Q43188-4 as service replacement.

Q43188-4

Output Module on P10396-3 board.

Main Modules:

Q42781-7

Original B Version Main Module. This Module's parts

list is not documented. No longer available. Use

Q43129-8 as a service replacement.

Q42921-9

Main Module on D 7605-5 board. This Module's parts

list is not documented. No longer available. Use

Q23129-8 as a service replacement.

Q43012-6

Main Module on D 7911-7 board. Use Q43129-8 as a

service replacement.

Q43043-1

Main Module on D 7993-5 board. No longer available.

Use Q43129-8 as service replacement.

Q43129-8

Main Module on D 8283-0 board.

Q43238-7

Main Module on D 8369-7 board. Detent Pots. Not

reverse compatible.

Control Module:

Q42762-7

CT-200/400 fan control on P10317-9 board.

Q43214-8

CT-400/800 fan control on P10404-5 board.

Q43242-9

CT control module for Export models. On P10405-2

board.

Display Module:

Q42706-4

CT display on D 7083-5 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 7605-5, D 7911-7,

D 7993-5, and D 8283-0 or earlier, refer to schematic

number J0523-1.

For amplifiers with main board D 8369-7 refer to

schematic number J0631-2.

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