Indicators And Controls - Tektronix 4010 Maintenance Manual

Installation and Operation-4010 Maintenance
4. To re-install the display section, reverse the
procedure. For correct storage of the extender cable, feed it
down into the storage bin as far as possible; then double it
back and forth in the storage bin as the display section is
placed on the pedestal.
Strappable Options
Strap options on circuit cards in the pedestal should be
placed in the desired position upon installation. Refer to
Table 2-13 for details.
Interfacing
Connect the Interface Unit to the computer or modem,
as appropriate. The Interface Unit is installed in the
pedestal section of the Terminal and the interconnecting
cable(s) and plug(s) egress through the back of the pedestal
unit. The configuration varies with the type of Interface
Unit. The standard 4010 or 4010-1 contains a Data
Communication I nterface No. 021-0065-00. The Optional
Data Communication I nterface No.021-0074-00 or the
TTY Port Interface may be supplied as options in place of
the Standard Data Communication Interface. Refer to the
appropriate Interface documentation for specific installa-
tion instructions.
Optional Accessories
Refer to the documentation on the specific accessory for
installation instructions.
Operating Power
The Terminal is intended to be operated from a
single-phase power source which has one of its current-
carrying conductors (the neutral conductor) at ground
(earth) potential. Operation from other power sources
where both current-carrying conductors are live with
respect to ground (such as phase-to-phase on a multi-phase
system, or across the legs of a 117-234 V single-phase
three-wire system) is not recommended, as only the line
conductor has over-current (fuse) protection within the
instrument.
The Terminal is provided with a three-wire power cord
with a three-terminal polarized plug for connection to the
power source. The grounding terminal of the plug is
directly connected to the instrument frame as recom-
mended by national and international safety codes.
NOTE
The power cord on Tektronix instruments may
conform to either of the fol/owing two electrical
codes:
USA (NEC)
Conductor
& Canada IEC
Line Black
Brown
Neutral
White
Light Blue *
Safety-Earth
Green w/yel/ow Green w/yel/ow
stripe stripe
*
Tinned copper conductor.
'-2
Fig. 1-3. Transformer terminals and fuse clip locations. (The fuse is
contained on the pedestal front cover.)
The Terminal can be operated from either 110 or
220-volt nominal line voltage source. A clip-in fuse and a
jumper arrangeme'nt on the transformer permits the
Terminal to be modified to suit the supply. The fuse is
mounted on the inside of the pedestal front cover,
providing a cover interlock. The transformer and fuse clip
are located in the bottom-right of the pedestal, as shown in
Fig. 1-3. Fuse size is indicated on the transformer shield,
and the wiring instructions are contained on the inside of
the front cover. Wiring instructions are repeated in Fig. 1-4
for convenience. Fuse size is 2 A slo-blo for 110-volt
operation and 1.25 A slo-blo for 220-volt operation. When
changing fuses, the fuse should be pushed (rather than
pulled) through the fuse holder.
I
WARNING
I
Dangerous potentials exist at several places in the
pedestal. Disconnect the Terminal from the power
source before changing transformer connections.
INDICATORS AND CONTROLS
General
With the exception of the Power switch and the Hard
Copy Intensity adjustment knob, the indicators and
controls are located on the keyboard section of the display
unit, as shown in Fig. 1-5. The Power switch is located on
the upper right corner of the pedestal, immediately below
the display unit. The Hard Copy Intensity adjustment knob
is on the right side of the display unit.
REV. B,SEPT.1975