Key Tronic KB 5150 User manual

~key troniccorporation
KB 5150
OPERATOR'S MANUAL
WARNING !!
TURN OFF POWER PRIOR TO CONNECTING OR
DISCONNECTING THIS KEYBOARD FROM SYSTEM.
FAILURE TO DO SO CAN CAUSE DAMAGE NOT
COVERED BY WARRANTY!
Copyright 1983
KTC 98-00042-000

THE KB 5150 KEYBOARD
The KB 5150 Keyboard is a plug compatible
replacement for the unit provided with
your IBM* Personal Computer. Using it is
exactly the same as described in the IBM
Personal Computer Guide To Operations
Handbook you received with your Personal
Computer. Install per instructions found
in the Handbook.
ADDED
LED STATUS INDICATORS
A frequent cause of operating errors is
inadvertant setting of the Numerical Lock
or Capitals Lock keys. To help reduce the
number of such errors, the KB 5150 adds
Status LEDls to these keys. You can now
tell at a glance which modes these keys
are in, greatly reducing chance entry of
false data or commands. We think you will
be pleased with the improvement.
1 - TAB legend replaces ARROW symbols.
Key Tronic, the world leader in keyboards,
has listened to market commentary on the
IBM design, and has chosen to include some
features not found on the original. These
selections enhance ease of operation, and
in no way alter the normal function or use
of the Personal Computer.
FEATURES
KEY RELOCATION
The KB 5150 design returns certain keys to
the standard locations
p and
replaces some
symbolic legends with conventional alpha
legends. Our surveys show that this style
offers greater user convenience, and also
reduces the problems created by the need
to relearn a keyboard for one application.
The diagram below shows the differences in
the two styles. Keep handy for reference.
2 - BACKSPACE legend replaces ARROW symbol.
3 - BACKSLASH and left SHIFT keys interchanged.
4 - Right SHIFT legend replaces ARROW symbol.
6 - Numeric keypad + reconfigured into + and
SHIFT legend replaces ARROW symbol.
5 - RETURN key reconfigured to Home Rowand
ACCENT KEY relocated to upper row. RTRN
legend replaces ARROW symbol.
*IBM is a trademark of IBM Corporation
ENTER keys.

TECHNICAL DATA
NOTE: The following material is for those of the KB 5150. This data does not apply
who are interested in the technical areas to normal operating requirements.
POWER REQUIREMENT
+5VDC @ 250ma Nominal
KEYBOARD CODES
The diagram below shows the codes output
by the KB 5150 on key actuation. This is
a dual encoded scheme, meaning that each
key depression/release produces a "Down"
and "Up" code cycle.
38
3C
BB BC
3D
3E
ED
EE
3F
40
SF CO
41 42
C1 C2
43
44
C3
C4
CODE CHART
KEY LOCATIONS
Correlation of key codes to their location
on the schematic matrix is as follows: The
key numbers run from left to right across
the diagram. Exception: Numbers 16 and 54
are not used in this configuration.
The top code is the "Down" value, and the
bottom code is the "Up" value. These codes
are based on positive logic and a negative
strobe.
KB 5150
45 46
C5 (»
47 48 49 4A
C7 C8 C9 CA
4B 4C 40 4E
CB CC CO CE
4F 50 51
00 01 1C
53 9C
D3
The top row is thus Keys 1 through 19. The
second Keys 20 through 39, the Home Row 40
through 59, the fourth 60 through 79, and
the bottom row 80 through 86.

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PROCESSOR
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3
.... 16 _____ .-+"'129
9 P
12
Y3 40 61 44 46 48 50 52 56 58 42 4
1-"'15 _____ .. l3o...., P 13
Y ....
173 62 65 67 69 71 83 75 77 79 84
6
1-"'14 _____ ...... 3 ...... 1 P14
Y'" 18 2 4 6 10 12 14
185 86
7
1-"'13=--- __ -:;3"""'2 P15
Y: 168 60 64 66 80 70 72 81 76 78 63 8
~12==--- ____ ~'""'I P16
Y1 125 21 23 27 29 31 33 85 132 39
t-'-1-,-1 ------"~ ...... P17
XA X9 X8 X7 X6 X5 X4 X3 X2 Xl XO
CR4~fCR~RO
10 WR
'----~PSEN
Z6t-:-ll.:--------'3~~7 P26
CAB
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1
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4
RESET
6
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5
GND
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SCHEMATIC - KB 5150

® BAIL&BLOCK
® LEG
\
TOP ASSEMBLY
EXPLODED VIEW
/
ENCLOSURE CD
PCB<fP

PARTS LIST
TOP ASSEMBLY
Refer To Exploded View:
1 -
2 -
3 -
4 -
Enclosure, Keyboard
Bail Block, 30mm
Leg, 30mm
Keyboard Assy
1 -
PCB
2 - Plate, PCB Mount
3 - Keyswitch, 30mm
4 Key top Set, IBM 30mm
5 - Cable Assy, Shielded
6 - Plate, Base
7 - Mounting Hardware
1 - Screw, Phillips 4-40
2 Screw, Phillips 6-32
3 Screw, Self Tap 3-28
4 - Washer, Lock #4
44-00211-001
44-00193-000
45-00057-000
65-02402-024
01-02402-207
49-01439-000
61-04024-001
66-02402-024
48-00616-000
49-01394-000
Commercial
.312
.250
.625
5 - Washer, Star, Int Tooth #6
6 - Cable Tie #8
PRINTED CIRCUIT BOARD
Refer To Schematic:
Z2
Z3
Z4
Z5
Z6
Z8
Cl
C2
C3
C4
C5
C6
C7
C8
C9
C13
C15
CRI
CR2
CR3
CR4
CR8
CR9
Rl
R4
R5
R8
R9
RIO
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
KTC Custom Driver
Microprocessor Type 8748
KTC Custom Detector
74LS132N
7406N
TTL Driver 74125N
Ceramic .033uf 25V
Ceramic 10pf 50V
Ceramic 18pf 50V
Tantalum 33uf 10V
Ceramic 33pf lKV
Ceramic .033uf 25V
Tantalum 10uf 10V
Ceramic .033uf 25V
Diode IN4148
LED, Red Type 3401
II II It
3.3K 5~6 Ij4l~
6.8K 5~~ Ij4W
806 Ohm Precision Res.
3.3K 5% Ij4W
"
33K 5% Ij4~J
3.3K 5% Ij4W
82 Ohm 5% Ij4W
II II II
J2 Header, 6 Pin Rt Angle
VI Crystal, 4.608 MHz
4 Pin DIP
22-00950-003
Commercial
22-00908-003
Commercial
18-08060-006
Commercial
39-00763-000
Commercial

WARRANTY AND SERVICE POLICY
WARRANTY
Key Tronic warrants this keyboard free of
defects in material and workmanship for a
period of 90 (Ninety) days from the date
of shipment from the factory.
PACKAGING NOTICE
Please retain original packaging for reuse
should your unit ever need to be returned
for service. The foam shell and the bag in
which you received it are a custom design
to protect the keyboard from electrostatic
and mechanical shock in shipment.
TECHNICAL ASSISTANCE
Should you encounter problems with the use
of this keyboard, first consult your IBM*
Personal Computer Guide To Operations.
The Handbook troubleshooting section will
provide a check list method of deciding if
the problem may be in the keyboard. If you
find that there may be a fault in the key
board, please contact our Product Support
Specialist for technical assistance.
To reach the PSS, call toll free from 8 AM
through 4 PM Pacific Standard Time, Monday
through Friday, to 1-800-262-6006.
IN WARRANTY SERVICE
To obtain Warranty Service, carefully read
and follow Shipping Instructions. The unit
will be repaired free of charge, with turn
around of ten days plus shipping time.
OUT OF WARRANTY SERVICE
For Factory Service after warranty period,
follow Shipping Instructions. Repairs will
be made at your expense. Normal turnaround
is ten days on prepaid returns, subject to
availability of parts.
*IBM is a trademark of IBM Corporation
INSPECTION NOTICE
Inspect this product carefully upon receipt
for damage. Key Tronic does not accept any
responsibility for damages incurred during
shipment.
If damage is found, hold all packaging and
documents and file a claim with the carrier
for repair cost. Key Tronic will repair the
damage under terms of Out Of Warranty.
SHIPPING INSTRUCTIONS
Prior to shipping your keyboard back to Key
Tronic, contact Customer Service by calling
1-800-262-6006 Monday through Friday during
the hours of 8AM through 4PM PST. You will
be given a Returned Material Authorization
number for the shipment. The RMA number is
to be posted prominently on the label side
of the shipping carton. Fill in the Service
Card below, and pack with the keyboard. Be
sure all requested information is entered
to insure efficient handling. NOTE: The RMA
must be posted on outside, or shipment will
not be accepted at our dock.
The unit must be repacked in the original
packaging to protect the unit in shipment
from electrostatic and mechanical shock.
The keyboard is to be shipped to Key Tronic
at your expense. If the unit is still under
warranty, it will be returned via prepaid
UPS surface. If repairs are made under Out
Of
Warranty conditions, you will be billed
for UPS surface. Any other mode selected by
you will be at your expense.
PLEASE NOTE:
The Warranty is rendered invalid if unit is
opened, repaired at another facility, used
on other than IBM Personal Computers, or in
any other way tampered with or modified.
--------------------------------------------c-ut---------------------------------------------
NAME
STREET/BOX NUMBER
CITY
PHONE
AREA CODE
REASON FOR RETURN
KEYBOARD SERVICE CENTER INFORMATION
STATE ZIP
NUMBER
RMA NUMBER
ORDER
NUMBER
SERIAL
NUMBER
BE SURE RETURNED MATERIAL AUTHORIZATION
NUMBER IS POSTED ON OUTSIDE OF PACKAGE.

FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
WARNING Thiskeyboard has been certified to complywiththe limits for aClass Bcomputingdevice pursuantto SubpartJ of Part15
of FCC Rules. Only computers certified to comply with the Class B limits may be attached to this keyboard. Operation with non-certified
computers is likely
to result in interference to Radio and TV reception.
INSTRUCTIONS TO USER
This equipment generates and uses radio frequency energy and if not installed and used properly, i.e., in strict accordance with the
operating instructions, reference manuals, andtheservice manual, maycause interference to Radio andTelevision reception. It has been
tested and found
to comply with the limits for aClass B computing device pursuant to SubpartJ of Part 15 of the FCC Rules, which are
designed
to provide reasonable protection againstsuch interference when operated in a residential installation.
If thisequipmentdoes cause interference to Radio and Television reception, refer to theApple II Reference Manual, Radio andTelevision
Interferencesection (Precedes Chapter1).
If necessary, consult your dealerservice representative for additional suggestions.
The manufactureris not responsible
for any Radio and TV interference caused by unauthorized modifications to this eqUipment. It is the
user's responsibility to correctsuch interference.
Litho U.S.A. CP34285
~key tronic corporation
BUILDING 14, S.I.P. • SPOKANE, WA 99216
PHONE: [phone] - TWX 510 773-1885
TELECOPIER: [phone]