NOW EVERYTHING YOU NEED TO LOCALIZE HORIZONTAL AND B+ SUPPLY DEFECTS IN COMPUTER MONITORS IN LESS TIME AND MORE PROFITABLY THAN EVER BEFORE!

• Unique frequency lock and variable horizontal frequency use allows you to quickly service all horizontal circuits no matter the frequency
• Patented "ringer" proves the condition of flybacks and yokes in seconds - even a single shorted turn
• Variable-current limited & protected B+ substitute power supply permits testing of horizontal stages even when the power supply is dead
• Exclusive "Horizontal Output Load Test" makes setup and testing a snap - even without applying AC power for more accurate estimates, fewer damaged replacement parts, and faster diagnosis and repair
• Exclusive "Dynamic Tests" help you analyze the horizontal circuit in powered-up conditions to catch even subtle defects in the power supply, noise, and drive signal
• Portable and field rugged to go on location when bringing the defective product to your bench isn't feasible

HA2500 Condensed Specifications:

HORIZONTAL FREQUENCY GENERATOR
FUNCTION: - Squarewave generator for Load Tests and Sub Drive functions. FREQUENCY RANGE: 15 kHz to 125 kHz
EXTERNAL SYNC INPUT:
INPUT SIGNALS: - Horizontal Sync, Composite Sync, Composite Analog Video (± Polarity)
FREQUENCY RANGE: 15 kHz - 125 kHz
SENSITIVITY: Composite Analog Video > .5 VPP Horiz. or Composite Sync > 2 VPP
HORIZONTAL OUTPUT LOAD TEST B+ POWER SUPPLY
VOLTAGE RANGE: - 0 - 18 VDC ± 0.5 volts.
CURRENT LIMIT: 250 mA ± 10%
HORIZONTAL OUTPUT LOAD TEST SETUP
EXCITATION DRIVE: Squarewave 50% duty cycle ± 2%
B+ VOLTS RANGE: 0 - 19.9 volts
VPP RANGE: autoranged 0 - 400 VPP
HORIZONTAL OUTPUT LOAD TESTS
B+ mA RANGE: 0 - 250 mA
TIME µS RANGE: 0.1 µS - 50 µS
TIME µS TRIGGER LEVEL: 5% ± 1% of pos. pulses with VPP > 10 VPP
RINGER TEST
FUNCTION: Approximate coil "Q" determined by exciting the coil and counting ringing cycles to a damped level.
DYNAMIC TESTS (Collector or Drain Meter)
VDC RANGE: Autoranged, 0- 400 volts
VPP RANGE: Autoranged, 0 VPP to 1500
VPP TIME µS RANGE: 0 - 50 µS
TIME µS TRIGGER LEVEL: 5% ± 1% of pulse VPP >20 VPP
DYNAMIC TESTS (Base or Gate Meter)
VPP RANGE: 0 VPP to 50 VPP
DYNAMIC TESTS (Horizontal Driver Test)
FUNCTION: Measures the horizontal driver stage output current capability by simulating a low impedance base/emitter transistor junction.
BASE mA RANGE: 0 - 2000 mA
DYNAMIC TESTS (Sub Drive)
FUNCTION: Substitute drive optimized to properly drive the base or gate of any horizontal output transistor.
BASE SUB OUTPUT: Squarewave 50%, -2/+6% duty cycle
GATE SUB OUTPUT: Squarewave, 50% duty cycle ±2%
SUBSTITUTE B+ SUPPLY
VOLTAGE RANGE: 30 volts to 180 volts
POWER OUPUT: 2 amps ± 10% to 40 volts, 80 watts ± 10% over 40 volts POWER LIMIT RANGE: 3 watt (min.) to 80 watt
GENERAL
FLOATING GROUND ISOLATION:
600 volts (DC + peak AC) from "-" terminal to chassis ground with 500 µA
DIGITAL DISPLAY: Vacuum fluorescent matrix, 40 x 2
AC POWER: 105 to 125 VAC 50/60 Hz. May be factory converted to 220 VAC.
SIZE: 6" X 11.5" X 15.5" (15.2 X 29.1 X 39.3 cm) HWD
WEIGHT: 14 lbs. (6.4 kg.)
All specifications allow for 20 minutes of warm-up and are guaranteed at 15 to 35 degrees C.