Maintenance; Service Information - Wavetek 3000 Instruction Manual

5 .1 INTRODUCTION
This section provides information for
disassembling, calibrating and trouble-
shooting the Model 3000 Signal Generator .
Measurements and adjustments
will be
facilitated by placing instrument
on
its right side,
as access is required
to top and bottom of
unit for adjust-
ments and test points .
5 .2 SERVICE INFORMATION
5 .2 .1 Disassembly Information
Refer to Figure 5-1 . The side panels
form part of the support for the top and
bottom covers ; therefore, these covers
should be removed before removing either
side panel . The covers and panels can
be removed as indicated below . NOTE :
One side panel must remain on
the in-
strument to
secure the front-panel as-
sembly to the chassis .
REMOVAL OF BOTTOM COVER - Remove two
rear feet (A) and lift cover off with a
slight rear movement . Reinstall cover
by reversing the removal procedure .
REMOVAL OF TOP COVER - Remove the single
screw (B) from top and lift off cover
with a slight rear movement . Reinstall
cover by reversing the removal procedure .
REMOVAL OF FRONT TOP RAIL - The top rail
may be removed to facilitate removal of
the meter board assembly .
The rail is
removed
by removing three screws (D)
and lifting rail upward .
REMOVAL OF SIDE PANEL - Either side panel
can be removed to provide better access
SECTION
S
MAINTENANCE
by removing the six screws (E) holding
side panel to the instrument .
Figure 5-1 . Disassembly
5 .2 .2 Module Servicing
REMOVAL OF MODULE - Modules may
be re-
moved by removing any cables attached
to top of the module and removing hold-
down screw (C) from bottom .
Rock module
slightly while lifting upward to
free
module from chassis socket .
REINSTALLING MODULE - Before installing
the module, check that module pins are
straight and properly aligned ; then,
carefully seat module pins into the
chassis socket, replace module hold-
down screw (C) to insure a good ground
connection between module and chassis,
and replace any cables attached to top
of module . Module-cable connections are
shown in Figure 5-6 . NOTE : If a module