Extron electronics PA 250 User Manual

Operation
Operation
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Figure 4 — PA 250 front panel
Power LED — Lights when the PA 250 is on.
1
Level control — Adjusts the amount of compensation for
2
amplitude losses caused by cable resistance.
Peaking control — Adjusts frequency compensation. It is similar
3
to the sharpness control on a television. It
compensates for the effect of capacitance of
long cables. Use the symbol at the left as a
guide for adjusting the control.
Specifications
Video
Gain adjustment .......................... -4.9dB to 3.0dB
Peaking adjustment ..................... 30 MHz to 100 MHz, maximum +8dB
Bandwidth .................................... 250 MHz (-3dB)
Video input
Number/signal type ................... 1 analog RGBHV, RGBS, RGsB, RsGsBs
Connectors .................................... 5 BNC female
Nominal level(s) .......................... Analog ....... 0.7V p-p
Minimum/maximum level(s) .... Analog ....... 0.4V to 2.0V p-p with no offset
Impedance .................................... 75 ohms
Horizontal frequency .................. 15 kHz to 150 kHz
Vertical frequency ....................... 40 Hz to 140 Hz
Return loss .................................... -37dB @ 5 MHz
Video output
Number/signal type ................... 1 analog RGBHV, RGBS, RGsB
Connectors .................................... 5 BNC female
Nominal level ............................... Analog ....... 0.4V to 2.0V p-p
Impedance .................................... 75 ohms
Return loss .................................... -20dB @ 5 MHz
4 PA 250 • Operation and Specifications
Specifications
DC offset ....................................... ±10mV maximum
Sync
Input type ..................................... RGBHV, RGBS, RGsB, RsGsBs
Output type .................................. RGBHV, RGBS, RGsB
Input level ..................................... RGBHV, RGBS ......... TTL ............. 5V p-p
RGsB, RsGsBs ........... analog ......... 0.3V p-p
Output level .................................. TTL ............. 4V to 5V p-p
Input impedance .......................... 510 ohms
Output impedance ...................... 75 ohms
Max input voltage ....................... 5V p-p
Input sensitivity ........................... 0.6V to 5V p-p
Max. propagation delay .............. 130 nS
Max. rise/fall time ....................... 4 nS
Polarity .......................................... RGBHV, RGBS ......... positive or negative
RGsB, RsGsBs ........... negative
General
Power ............................................. 100VAC to 240VAC, 50/60 Hz, 10 watts,
internal, auto-switchable
Temperature/humidity .............. Storage -40° to +158°F (-40° to +70°C) / 10% to
90%, non-condensing
Operating +32° to +122°F (0° to +50°C) / 10% to
90%, non-condensing
Rack mount ................................... Yes, with optional rack shelf #60-190-01
Enclosure type .............................. Metal
Enclosure dimensions ................. 1.75" H x 8.75" W x 9.5" D
4.45 cm H x 22.23 cm W x 24.13 cm D
Shipping weight ........................... 5 lbs (2.3 kg)
Vibration ....................................... NSTA 1A in carton (National Safe Transit
Association)
Approvals ..................................... UL, CUL, CE
MTBF ............................................. 30,000 hours
Part number .................................. 60-179-01
Warranty ....................................... 2 years parts and labor
Part number
Part number .................................. 60-179-01
Specifications are subject to change without notice.
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User's Guide
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PA 250
Peaking Amplifier
68-202-02 A
Printed in the USA
01 01