Tektronix 213 DMM Instruction Manual page 42

Maintenance-213 Service
The location of parts that are called out in the replacement
procedures are found either on the Exploded View drawing
in the Mechanical Parts List section or on accompanying
disassembly figures.
I
WARNING
I
Potentially dangerous high voltages exist inside
this instrument when it is operating. Disconnect
the instrument from the power line and turn it
off
(disconnecting the instrument from the power
line does not turn it off) before removing the
cabinet halves.
NOTE
In steps involving removal of circuit boards,
extreme care is necessary to prevent the bending
or breaking of terminal pins. Boards must be
removed vertically in the same plane as they
are set in the instrument. Do not twist or
move boards in a shearing direction (left, right,
away from, or toward viewer).
TOOLS REOUI RED. The following tools are required for
component removal and replacement:
Screwdriver, Phillips, 3", #1 point
Screwdriver, 4", 3/16" blade
Nutdriver (or socket), 3/16"
1480-16
SCREWS SECURING
CABINET HALVES
2 SCREWS ON
RIGHT SIDE ARE
INSIDE PROBE
STORAGE WELL
Figure 4-3. Location of screw securing cabinet halves.
4-4
Pliers, long nose
Soldering Iron, 15 watt
Soldering Iron, 35-40 watt
Integrated Circuit Extractor
1
(Tektronix Pa rt
No. 003-0619-00)
Kit, Circuit Board Pin
1
(Tektronix Part No.
040-0542-00)
Desolder Tool
1
(Tektronix Part No. 003-0652-00)
Solder Wick
1
(Tektronix Part No. 006-1356-00)
CABINET REMOVAL. Removal of the cabinet is required
to replace the power line fuse or the mA input protection
fuse, and to perform calibration or troubleshooting. Proceed
as follows:
1. Unwind the probe lead and then the power cord. Turn
the instrument upside down on its top and remove the four
screws holding the cabinet together (see Figure 4-3). Two of
the screws are located inside the probe storage slot.
NOTE
The instrument is not secured to either cabinet
half except by a tight fit around the crt face plate;
therefore, if the instrument remains attached to
1
Optional tools.
POWER CORD
PROBE LEAD
1481-34
Figure 4-4. Power cord and probe lead routing.
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