Tektronix 2236, Instruction Manual

Page: 29 / 350

Section 2— 2236 Service
OPERATING INSTRUCTIONS
PREPARATION FOR USE
SAFETY
Refer to the “Operators Safety Summary” at the front of
this manual for power source, grounding, and other safety
considerations pertaining to the use of the 2236. Before
connecting the instrument to a power source, carefully read
the following about line voltages, power cords, and fuses.
LINE VOLTAGE
The instrument is capable of continuous operation using
input voltages that range from 90 V to 250 V nominal at
frequencies from 48 Hz to 440 Hz.
POWER CORD
A detachable three-wire power cord with a three-contact
plug is provided with each instrument to permit connection
to both the power source and protective ground. The plug
protective-ground contact connects (through the protective-
ground conductor) to the accessible metal parts of the in­
strument. For electrical-shock protection, insert this plug
only into a power outlet that has a securely grounded pro­
tective-ground contact.
Instruments are shipped with the required power cord as
ordered by the customer. Available power cords are illus­
trated in Figure 2-1, and part numbers are listed on the “Ac­
cessories” page at the back of this manual. Contact your
Tektronix representative or local Tektronix Field Office for
additional power-cord information.
LINE FUSE
The instrument fuse holder is located on the rear panel
(see Figure 2-2) and contains the line fuse. The following
procedure can be used to verify that the proper fuse is in­
stalled or to install a replacement fuse.
1. Unplug the power cord from the power-input source (if
applicable).
Plug
C o n fig u ra tio n Usage
Line
V o lta g e
R eference
S tanda rds
N o rth
A m e rica n
1 2 0 V /
1 5 A
1 2 0 V
A N S I C 7 3 .1 1
N E M A S -1 5 -P
IEC 8 3
U niversal
Euro
2 4 0 V /
1 0 -1 6 A
2 4 0 V
CEE (7 M L IV .V II
IEC 8 3
" i p )
UK
2 4 0 V /
1 3 A
2 4 0 V
BS 1 3 6 3
IEC 8 3
A u stra lia n
2 4 0 V /
1 0 A
2 4 0 V A S C 1 1 2
N o rth
A m e rica n
2 4 0 V /
1 5 A
2 4 0 V
A N S I C 7 3 .2 0
N E M A 6 - 1 5 -P
IE C 8 3
S w itze rla n d
2 2 0 V /
6 A
2 2 0 V
SEV
A b b re via tio n s:
A N S I — A m e rica n N a tio n a l S ta n d a rd s In s titu te
A S — S ta n d a rd s A s so cia tio n o f A u s tra lia
BS — B ritis h S tanda rds In s titu tio n
CEE — In te rn a tio n a l C o m m issio n o n R u les f o r th e
A p p ro v a l o f E le ctrica l E q u ip m e n t
IEC — In te rn a tio n a l E le c tro te c h n ic a l C o m m issio n
N E M A — N a tio n a l E le ctrica l M a n u fa c tu re r's A sso cia tio n
SE V — S ch w e ize visch e r E ie ktro te ch isch e r V erein
( 2931 - 21 ) 4204-53
Fig. 2-1. Optional power cords.
2. Press in and slightly rotate the fuse-holder cap coun
terclockwise to release it.
3. Pull the cap (with the attached fuse inside) out of the
fuse holder.
4. Verify proper fuse value (see Power Source of Table
1-1 in the “Specification” section).
5. Reinstall the fuse (or replacement fuse) and the fuse-
holder cap.
2-1