Teletype 2510 Series Adjustments

1
BELL SYSTEM PRACTICES
AT&TCoStandard
SECTION 578-100-700
Issue 4, October 1972
SERIES 2510 COMMUNICATIONS DISPLAY TERMINAL
{CDT) WITH CDDC801 OR CDDC803 MODULE
ELECTRONIC ADJUSTMENTS
CONTENTS PAGE
CONTENTS PAGE
1. GENERAL ..... .
1
TP322903 DEFLECTION
PREAMPLIFIER
2.
TEST EQUIPMENT AND
TOOLS REQUIRED
ADJUSTMENTS . . . .
CDPS801 HIGH VOLTAGE
POWER SUPPLY
Focus ........... .
Main brightness . . . . . . .
CDPS802 AND CDPS803 LOW
VOLTAGE POWER SUPPLY DC
VOLTAGE AND CURRENT
LIMIT
Negative 11 volt de
Positive 5 volt de .
Positive 6 volt de .
CRT DEFLECTION YOKE
(Early Design)
Character yoke . .
Main yoke
Pincushion magnets
CRT DEFLECTION YOKE
{Late Design)
Beam centering tabs
Character yoke ..
Main yoke
Pincushion magnets
TP322612 FUNCTION
GENERATOR
Character size . . . . . . . .
Cursor centering ..... .
Horizontal size and centering
Line spacing . . . . . . .
Vertical size and centering
2
3
16
16
5
3
3
13
13
13
17
14
14
17
12
12
'9
12
12
Page linearity on
MC903 card ...
.
.......
16
TP322912 FUNCTION
GENERATOR
Character size
. .......
8
Cursor centering
......
9
Horizontal size and centering
8
Line spacing
.......
9
Positive 15 volt de
5
Slant italics
........
9
Vertical size and centering
8
1. GENERAL
1.01 This section provides
an electronic
adjustment procedure for the Series
2510 Communications Display Terminal (CDT).
Issues 1 through 3 of this section were limited
printing editions and did not receive general
system-wide availability nor distribution. Since
this issue is a general revision and represents the
first standard printing available for Bell System
distribution, marginal arrows normally used to
indicate changed or new information items have
been omitted. Field change notice (TCN) infor-
mation, wherever applicable, has been incorpo-
rated into this section up to the time of this
printing.
1.02 Early factory production 2510 CDT
Sets were equipped with the TP322912
function generator assembly and early design
deflection yoke (Figure 8). These sets are capable
of operation with the "italics" (slanted character)
feature. Thereafter, factory built sets were
equipped with the late design CRT deflection
yoke (Figure 10), which is interchangeable with
the early design deflection yoke with exception
that italics operation is not provided.
Prepared for American Telephone and Telegraph Company by Teletype Corporation
©
1969 and 1970 by Teletype Corporation
All rights reserved
Printed in U.S.A. Page 1