490B B&K Precision, 490B Datasheet
490B
Manufacturer Part Number
490B
Description
CRT RESTORER ANALYZER
Manufacturer
B&K Precision
Type
Analyzer, CRT Restorerr
Specifications of 490B
Power Source
110V, 125V, 220V, 240V
Equipment Type
CRT Rejuvenator
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
BK490B
The 490B is intended for the checking and rejuvenating of the
cathode ray tubes (CRT) for both color and black-and-white televi-
sion sets and monitors.
With this instrument you will be able to find and repair leakage or
shorts by measuring the RGB current of cathodes. You will also be
able to plot voltage/current features and to rejuvenate each cath-
ode separately.
Test and restore color or monochrome CRTs
Test and restore most computer monitor CRTs
Test and restore most projection TV CRTs
Test emission, tracking, leakage, shorts, life
Remove shorts, clean and balance guns,
rejuvenate cathodes
Continual set-up chart updates and new
adapter development
Extra rugged carrying case
76
Universal CRT Adapter
CR-XA
Heater
Selectable voltages
Cut-Off adjustment
Emission test
Rejuvenation
Leakage and short circuit
Balance test
Emission curve
Power supply
Input voltage
Power Consumption
Mechanical features
Dimensions WxHxD
Weight
Accessories
G1 bias
G2 bias
Measurement range
G1 bias
Color tubes
Current
Cycle duration
Start cycle
Color tubes
Indicators
Removing
Balance adjustment
Life test
Measurement
G1 bias
SUPPLIED: Instruction manual, Set-up chart, Spare fuse, 2 Adapter sockets for several CRT,
OPTIONAL: CR-XA
Specifications
Adapter cable, High voltage anode cable
Adapter
*(allow use of “CR” adapters, including the CR-XA Universal Adapter)
CA23
CA24
CC-12*
490B
Universal Adapter
Conversion cable
JEDEC base
B10-276
B 8-274
6.3V 1A max.
12V 0.5A max.
0 to 1600 uA
Cut-off bias
R, G or B simultaneous measuring
25 or 50 mA, selectable
70s approx.
Manually
R, G or B selection
Neon
Between G1-K and Fil-K
For the three cathodes
Approximate life period rating
Of 1k current
Variable from 0 up to-100V
AC 110V 50-60 Hz 125V/220V/240V (internally selectable)
35W
Rugged carrying case with 16 adapter storage.
17.7 x13.4 x5.7" (420x340x145 mm)
10.71 lbs. (4.9kg)
-50V and -70V selectable
+30V to +600V, variable
One Year Warranty
490B
model