Teletype 43 Teleprinter Basic RO, Service Manual

Page: 35 / 222

MANUAL 4 06. 1-25
C. ENGINEERING OPTIONS
PAGE
1.
GENERAL ..................... 1-25
OPTION SWITCHES .............. 1-25
2.
TOOLS REQUIRED . . . . . . . . . . . . . . 1-25
3. ACTIVATING OPTION NO. 431 .... 1-26
4. OPTION CHECKOUT. . . . . . . . . . . . . 1-28
1.
1.01 This part provides information on en­
gineering option No. 431 for the 43
Buffered KSR Teleprinter.
f
.02 The engineering option can be used to
change the type font arrangement using
the switches located on the logic circuit card
mounted on the bottom of the printer frame.
1.03 The option is numbered for field identi­
fication and record keeping purposes.
1.04
The operator console circuitry can be
damaged by static discharge. The 346392
static discharge ground strap is available for use
by service personnel.
1.05 All ordering numbers shown in this manual
are Teletype Corporation part numbers.
1.06 For additional servicing information refer
to Teleprinter Troubleshooting, Page 1-29.
OPTION
1.07 Different styles of option selecting
switches may be present on the logic card.
On toggle or slide type switches, options are acti-
vated by positioning the toggle or slide toward
the positions indicated in Fig. 1.
Toggle Style
Slide Style
(Toggles and Slides shown in OFF position.)
Fig. 1-Qption Switches
1.08
The option switches on the logic circuit
card are factory optioned and should not
be changed unless the local engineering require­
ments specify incorporating a nonstandard option
(Fig. 2 ).
Fig. 2-Standard Switch Positions
2. TOOLS
2.01 The following tools will be required to
enable the engineering option No. 431.
These items should normally be present in standard
maintenance tool kits.
Wrench, Open end- 3/16" and 1/4" 129534
Screwdriver -1/4", 6" Blade 1 0 0982