Model : 1280B
Benchtop Compu ter Monitor Generator
USER MANUAL
2
Safety Summary
The following safety precautions apply to both operating and maintenance personnel and must be observed during
all phases of operation, service, and repair of this instrument . Before ap plying power, follo w t he in stallation
instructions and become familiar with the oper a ting i nstructions for this instru ment.
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the instrument. B&K PRECISION assumes no liability for a
customer’s failure to comply with these requirements. This is a Safety Class I instrument.
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical ground. This
instrument is grounded through the ground conductor of the supplied, three-conductor ac power cable. The power
cable must be plugged into an approved three-conductor electrical outlet. Do not alter the gro und connection.
Without the protective ground connection, all accessible conductive parts (including control knobs) can render an
electric shock. The power jack and mating plug of the power cable meet IEC safety standards.
DO NOT OPE RATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument
in such an environment constitutes a definite safety hazard.
KEEP AWAY FROM LIVE CIRCUITS
Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments
must be made by qualified maintenance personnel. Disconnect the power cord before removing the instrument
covers and replacing components. Under certain conditions, even with the power cable removed, dangerous
voltages may exist. To avoid injuries, always dis connect power and discharge ci rc uits bef ore touc hing the m.
DO NOT SERVICE OR ADJUST ALONE
Do not attempt any internal servic e or adjus tment unl ess another person, capable of rendering first aid and
resuscitation, is p r e sent.
DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT
Do not install s ub stitute parts or pe rform any unauthorized modifications to this i nstrument. Return the instrument
to B&K P r e c ision for service and repair to ensure that safety features are maintained.
WARNINGS AND CA UTIONS
WARNING and CAUTION s t atements, such as the followi ng examples, denote a hazard a nd appear throughout t his
manual. Follow all instructions contained in these statements.
A WARNING statement calls attentio n to a n operating pro c e dure, pra c tic e , or condition, which, if not followed
correctly, could result in injury or death to pers onnel.
A CAUTION statement calls attention to an operating procedure, practice, or condition, which, if not follo wed
correctly, could result in damage to or destruction of part or all of the product.
WARNING:
Do not alter the ground connection. Without the protective ground connection, all accessible
conductive parts (including control kno
bs) can render an electric shock. The power jack and mating
plug of the power cable meet IEC safety standards.
WARNING:
To avoid electrical shock hazard, disconnect power cord before removing covers. Refer servicing to
qualified personnel.
CAUTION:
B
efore connecting the line cord to the AC mains, check the rear panel AC line voltage indicator.
Applying a line voltage other than the indicated voltage can destroy the AC line fuses. For continued
fire protection, replace fuses only with those of the specified voltage and current ratings.
CAUTION:
This product uses components which can be damaged by electro-
static discharge (ESD). To avoid
damage, be sure to follow proper procedures for handling, storing and transporting parts and
subassemblies which contain ESD-sensit ive component s.
3
Contents
Safety Summary .......................................................................................................................................... 2
Specifications .............................................................................................................................................. 4
Package Contents ........................................................................................................................................ 5
Controls and Indicators ............................................................................................................................... 5
FEATURES ................................................................................................................................................ 6
BASIC OPERATION ................................................................................................................................. 6
Use of Pattern Applications ........................................................................................................................ 6
SERV ICE INFORMATION ....................................................................................................................... 7
LIMITED ONE-YEAR WAR RANTY....................................................................................................... 7
4
Specifications
Resolutions:
Type Resolution Horizontal Polarity Vertical Polarity
(kHz) (Hz)
MDA 720 x 350 18.4 + 50 -
CGA 640 x 200 15.8 + 60 +
EGA 640 x 350 21.8 + 60 -
VGA 640 x 480 31.5 - 60 -
SVGA 800 x 600 35.2 + 56 +
8514A 1024 x 384 35.5 + 87 +
VESA 1024 x 768 48.5 - 60 -
1280 x 1024 64.0 + 60 +
MAC 512 x 384 24.4 - 60 - Composite Sync
640 x 480 35.0 - 67 - Composite Sync
640 x 480 35.0 - 67 - Sync on Green
640 x 480 35.0 - 67 - Separate Sync
830 x 624 49.7 - 75 - Composite Sync
1152 x 870 68.7 - 75 - Composite Sync
1280 x 1024 80.0 - 75 - Composite Sync
Connector Pin Assignments:
15-HD 15-DB TTL 9-D
Pin No. Function Function Function
1 Red Video Ground Ground
2 Green Video Red Video Intensity
3 Blue Video Hor./Comp Sync Red Video
4 Not used Not used Green Video
5 Ground Green/Sync Blue Video
6 Ground Ground Intensity
7 Ground Not used Intensity
8 Ground Not used Hor. Sync
9 Not used Blue Video Ver. Sync
10 Ground Not used
11 Not used Ground
12 Not used Ver. Sync
13 Hor. Sync Ground
14 Ver. Sync Ground
15 Not used Hor./Comp Sync
General:
Power Source: AC 115Vac/230Vac, 50/60Hz (+10%)
Dimensions (HxWxD): 3.9” x 10.25” x 10.8” (99 x 260.3 x 274.3mm)
Weight: 3.1 lbs. (1.4 kgs.)
NOTE: Specifications and information are subject to change without notice. Please visit
www.bkprecision.com for the most current product information.
5
Package Contents
The 1280B is shipped with:
• 1280B Instrument
• Printed Instruction Manual
• Line Cord
Controls and Indicators
Power -- Slide switch for power on or off.
Power Indicator -- LED to show when power is on.
System Type Switch -- Selects Mac or PC Columns
Monitor Type Selector – Selects Monitor type/ Resolution
Video Pattern -- Step through Colorbar, Crosshatch, Dot, and Raster Push button.
MDA, CGA or EGA Connector
9 pin Female, D type
MAC Connector
15 pin Female, D type
VGA, SVGA, & 1814A Connector
15 mini-pin Female, D type
~ BACK PANEL (not shown) ~
AC Power Input
AC Voltage Selector
Fuse Holder -- Located directly under the AC Power Input
Four DB15 mini-pin Female Jacks -- Allows burn-in or testing of multiple Monitors
RGB BNC -- Red, Green and Blue video with sync on Green
H/HV & VBNC -- Horizontal and Vertical Sync outputs
MAC PC Monitor Type PC MAC BK
PRECISION
PATTE RN POWER
640x480 VGA SVGA 800x600 MANUAL
640x480 EGA 8514A 1024x768
640x480 CGA 1024x768 1152 x870
512x384 MDA 1280x1024 1280 x1024
AUTO
MAC PC
1280B COMPUTER
VIDEO OUTPUT MONITOR TESTER
MONITOR TESTER
Power S witch
Power Indicator
Auto/Manual stepping
Monitor Type Selector
Pattern selector
Pushbutton
DB15
VGA/SVGA
System Type
Switch
DB15 MA C
DB9
MDA, CGA & EGA
6
FEATURES
• Tests MDA,CGA, EGA, VGA, SVGA, & MAC Monitors
• Resolution 720x350, 640x480, 800x600, 1024x768,
• 1280x1024, 512x384, 830x624, &1152x870
• Interlaced & Progressive
• Provides Color bars, Cross-hatch, Dots, Color
• Raster & Window
• Connectors are 9pin D(MDA, CGA & EGA), 15pin
• D(MAC), 15minipin D (VGA, SVGA, and 8514A)
• Single push button selectable patterns
• Multiple monitor testing or burn-in
BASIC OPERATION
1. Place the monitor type switches to the proper position for the type of monitor to be tested.
2. Connect the monitor to the proper video output connector.
3. Turn on the power to both the monitor and the test unit.
4. Press the video pattern push-button to step to the desired pattern*.
* Setting Auto Manual Switch to AUTO allows the output to scroll through the patterns automatically.
Use of Pattern Applications
The primary use of this pattern generator is to provide a quick check of the operating condition of a
monitor and to allow for the adjustment of the external controls for the best performance.
CROSSHATCH or DOT ---- These patterns are used to check static and dynamic convergence,
linearity and pin cushion settings.
COLOR BARS ---- The color bars are used to test the monitors ability to produce proper colors.
RASTER ---- Typically used to check the purity of the primary colors. When these are properly
adjusted the white raster should appear pure white.
7
SERVICE INFORMATION
Warranty S ervi ce: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return the product
in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any
leads, probes, connectors and accessories that you are using with the device.
Non-Warra nty Service: Please go the sup port and ser vi ce s ection on our website www.bkprecision.com to obtain a RMA #. Return the
product in the original packaging to the address below. Clearly state on the RMA the performance problem and return any leads, probes,
connectors and accessories that you are using with the device. Customers not on an open account must include payment in the form of a
money order or credit card. For the most current repai r charges please refer to the ser vi ce and support section on our website.
Return all merchandise to B&K Precision Corp. with pre-paid shipping. The flat-rate repai r charge f or Non-Warranty Service does not
include return shipping. Return shipping to locations in North America is included for Warranty Service. For overnight shipments and non-
North American shipping fees please contact B&K Precision Corp .
B&K Pr ecision Corp.
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
www.bkprecision.com
714-921-9095
Include with the re turne d instr ument yo ur complete return shipping address , conta c t name, phone number and desc r iption of
problem.
LIMITED ONE-YEAR WARRANTY
B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in
workmanship and materials for a period of one year from date of purchase.
B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be
accompanied by proof of the purchase date in the form of a sales receipt.
To obtain warranty coverage in the U.S.A., this product must be registered by completing a warranty registration form on our website
www.bkprecision.com within fifteen (15) days of purchase.
Exclusions: This warranty does not apply in the e v ent of misuse or abuse of t he produc t or a s a re sul t of unautho rized altera tions
or repai rs. The warranty is void if the ser ial n umber is altered, deface d or removed.
B&K Precision Corp. shall not be liable for any consequential damages, including without limitation damages resulting from loss of use.
Some states do not allow limitations of incidental or consequential damages. So the above limitation or exclusion may not apply to you.
This warranty gives you specific rights and you may have other rights, which vary from state-to-state.
B&K Pr ecision Corp.
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
www.bkprecision.com
714-921-9095
