CHATTANOOGA
GROUP INC.
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About This Manual
This manual is intended to cover the Intelect
®
Legend Ultrasound and
Stim units and their accessories only.
The purpose of this service manual is to give a qualified technician
enough information to troubleshoot problems to the board level. Because of
the complexity and construction of these boards it is not recommended that
problems be traced to the component level. Some problems may be due to a
misunderstanding of how the machine operates. Thus it is important to read
the operators manual first to gain familiarity with how the machine operates
under normal circumstances.
Since this service manual is intended to assist in isolating the problem
to a circuit board, we will not cover the functions performed on each board in
detail.
This manual presents a brief theory of operation of each board and
accessory in the unit. It contains a troubleshooting guide for common
problems. This guide is not meant to cover every possible problem that a
service technician might encounter, but rather to give examples of what may
be seen. The manual also contains diagrams of the connector layout of each
board, a system diagram of how the unit is wired, and a list of signals carried
on each wire. Also included are calibration procedures for the unit, parts lists
and information on obtaining service.
Important !
The specifications and information put forth in this manual were in
effect at the time of publication. However, owing to Chattanooga Group’s
policy of continuous improvement, changes to these may be made at any time
without obligation on the part of Chattanooga Group, Inc.
Specifically, as there are improvements made to the circuit boards in
these units
the connector names may change
. However,
the location and
function of the connector will not likely change
. Use reasonable judgment
and contact Chattanooga Group when in doubt.
Chattanooga Group, Inc., obviously cannot be responsible for work
performed on their units by individuals or other companies not approved or
authorized to perform service on Chattanooga Group equipment. Always try
to resolve any problems through your dealer or Chattanooga Group’s
customer service department FIRST.
Please read and understand the following precautions before
using or servicing a unit.
Innovation starts here
TM
4
Intelect
®
Legend Series Service Manual
