76
Heater
Selectable voltages 6.3V 1A max.
12V 0.5A max.
Cut-Off adjustment
G1 bias -50V and -70V selectable
G2 bias +30V to +600V, variable
Emission test
Measurement range 0 to 1600 uA
G1 bias Cut-off bias
Color tubes R, G or B simultaneous measuring
Rejuvenation
Current 25 or 50 mA, selectable
Cycle duration 70s approx.
Start cycle Manually
Color tubes R, G or B selection
Leakage and short circuit
Indicators Neon
Removing Between G1-K and Fil-K
Balance test
Balance adjustment For the three cathodes
Life test Approximate life period rating
Emission curve
Measurement Of 1k current
G1 bias Variable from 0 up to-100V
Power supply
Input voltage AC 110V 50-60 Hz 125V/220V/240V (internally selectable)
Power Consumption 35W
Mechanical features Rugged carrying case with 16 adapter storage.
Dimensions WxHxD 17.7 x13.4 x5.7" (420x340x145 mm)
Weight 10.71 lbs. (4.9kg)
SUPPLIED: Instruction manual, Set-up chart, Spare fuse, 2 Adapter sockets for several CRT,
Adapter cable, High voltage anode cable
Adapter JEDEC base
CA23 B10-276
CA24 B 8-274
CC-12* Conversion cable
*(allow use of “CR” adapters, including the CR-XA Universal Adapter)
OPTIONAL: CR-XA Universal Adapter
Accessories
Specifications
model
490B
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
CR-XA
490B
One Year Warranty
Universal CRT Adapter
