TC Electronic ATAC, Service Manual

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TC Electronic A/S ATAC Service manual page 3
Introduction
The purpose of this manual is to support skilled technicians in repairing the ATAC
The manual begins with a Quick Trouble Shooting table. Here, hints, advice and
possible problems are described.
If the problem is more serious, the next step is to use the Built-in Test Program. With
this program the problem can often be narrowed down to a specific section or
component.
The next section consist of disassembly and exchange procedures. Please be aware of
warranty rights before disassembling. See the warranty card.
Circuit description is a brief description of the circuits on the different boards.
Circuit description is followed by a list with LED error codes.
The list with software changes states the corrections and additions for various software
versions.
Finally the specifications are stated.
Appendix contains schematics, service notes, part lists, layouts etc.
Schematics start with a main sheet, where sub sheets are shown as blocks. Even sub
sheets might have sub sheets. In the Schematics some connections have label names to
help the reader. If a label name is framed, it means that it is "connected" to another
sheet. Label names followed by the symbol "*" mean that the signal is active low, i.e.
RESET*: the reset function takes place when the signal is low.
This service manual does not contain schematics for the external power supply.
Part lists contain a column called TCcode. Use this code when ordering spare parts. If
the TCcode field is empty; it means the component cannot be ordered separately. The
coordinates in the column Pos. refer to the PCB layout page. The column named Page
refers to page no. in the schematics. In column comments a short explanation of the
function is stated. For some components, alternative types are mentioned.
PCB layouts are made as gatefolds.
Finally appendix contains a spare part list for mechanical parts.