A handheld, battery-operated Analyzer that isolates horizontal defects in video displays - at the job site or on the bench.

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A handheld, battery-operated Analyzer that
isolates horizontal defects in video displays -
at the job site or on the bench.
Introducing the HA325 Horizontal Output and
Flyback Tester
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Strong sales of new high-resolution video
displays a large base of existing units means
profitable servicing opportunities

• 250 million CRT-based video displays are
  estimated in use today - not including PC
  monitors.
• Sales of CRT-based video displays exceed 22
  million annually.
• Over 1 million High Definition sets will be sold
  this year.
• Projection systems large displays require
  on-site service repair.

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Technicians indicate more than 50 of CRT display
failures are horizontal related.
Why?
Horizontal problems cause confusing interaction
with other circuits. Output stage defects cause
high currents that stress or quickly burn-out
costly components. Many loading problems caused
by defective components cannot be detected with
an ohmmeter. Shutdown conditions result in
momentary operation, leaving no time to make
measurements.
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Overview of the HA325s Features
1. Horizontal Output Load Test Identifies
horizontal output stage defects quickly
accurately in any CRT-based SDTV, EDTV, HDTV or
computer monitor. Bench-proven in over 5,000
service centers. 2. Flyback IHVT Load Test
Analyzes flybacks and IHVTs for internal
defects. 3. Ringer Tests Identifies shorted
turns in flybacks, yokes, switching transformers
or other coils. 4. Assistance Messages Help
messages guide you and simplify
troubleshooting. 5. Handheld Battery
Operated Use in the home, field, or on the
bench.
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HA325 Feature 1
Horizontal Output Load Test
Functionally tests horizontal output stages to
detect loading defects that do not permit
power-on testing.

• Benefits
• Identify horizontal output stage defects before
  replacing burning out replacement parts.
• Quickly determine if horizontal output stage
  defects exist before applying AC voltage.
• Determine if the horizontal output stage is the
  cause of power supply defects or improper
  operation.

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HA325 Feature 1
1. The Load Test requires 3 connections.
2. The Load Test setup is easy.
Simply select the setup option that matches the
displays normal operating horizontal frequency
AUTO (HA325 automatically detects best setup) TV
16 kHz (conventional televisions) HD1080 33 kHz
(HDTV with 1080 resolution) HD720 45 kHz (HDTV
with 720 resolution) VESA 38 kHz (computer
monitor) VESA 48 kHz (computer monitor) VESA 64
kHz (computer monitor) VESA 75 kHz (computer
monitor) VESA 88 kHz (computer monitor) MANUAL
NOTE The load test is performed with NO AC power
applied to the chassis.
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HA325 Feature 1
3. Perform the Load test.
The HA325 displays 3 test results mA (B
current), EFF (output stage efficiency), and µS
(retrace pulse time). Good readings indicate no
severe loading or timing defect in the horizontal
output stage. Use the bad readings to help
pinpoint the defect. NOTE The load test is
performed with NO AC power applied to the chassis.
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Integrated High Voltage transformers (IHVTs)
have many failure modes that affect chassis
operation.
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HA325 Feature 2
Flyback and IHVT Load Test
Analyzes flybacks for open primary, shorted
adjacent turns, and shorts/leakage from the
primary to a secondary winding ground.

• Benefits
• Verify if the flyback or IHVT is defective when
  the Horizontal Output Load Test indicates a
  severe output stage defect.
• Confirm IHVT defects before replacing expensive
  component.
• Isolate AC Loading defects to primary components
  or to flyback secondary circuit loads.

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HA325 Feature 2
1. The Flyback IHVT Load Test requires 3
connections.
2. The Flyback IHVT Load Test setup is easy.
Simply select a setup option that matches the
flyback/IHVTs operation
AUTO (HA325 automatically detects best setup) TV
(conventional televisions) Hi-Scan (HDTVs,
computer monitors high-res. Displaysgt30kHz) MAN
UAL
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HA325 Feature 2
3. Perform the Flyback/IHVT Load test.
The HA325 displays 3 test results mA (primary
current), EFF (transformer efficiency), and µS
(induced pulse time). Good readings indicate a
good primary winding, no shorted turns, no
primary-to-secondary leakage. Use the bad
readings to help pinpoint the defect.
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HA325 Feature 2
Use the Flyback/IHVT Load test to check IHVT
multipliers, and screen focus dividers.
Multiply measured voltage x100 for actual
in-circuit output voltage from the IHVT. Lower
than expected voltage, or an output that cannot
be varied through the proper range indicates a
defect.
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HA325 Feature 3
Ringer Test
Analyzes flybacks IHVT transformers, yokes,
switching transformers and other coils for
shorted adjacent turns.

• Benefits
• Locate shorted turns that cannot be detected with
  an ohmmeter or with inductance value checks.
• Confirm IHVT defects before replacing expensive
  components.

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HA325 Feature 3
1. The Ringer Test requires connections to the
yoke, flyback/IHVT, switching transformer, or
coil. Yokes - typically blue and red
wires Flybacks IHVTs - primary winding SMPS
transformers - primary winding
2. The Ringer Test setup is easy.
Apply the ringer test that matches the component
that you are testing. Push and hold the
appropriate Ringer Test button
Yokes Flybacks (deflection yokes, flybacks
the flyback portion of IHVTs. Coils (coils
inductors used in horizontal or other electronic
stages) Switching Transformer (transformers used
in switching mode power supplies)
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HA325 Feature 3
3. Perform the Ringer test.
The HA325 displays a ring value in the digital
display. Good readings of 10 or more rings means
the coil has no shorted turns. A reading less
than 10 rings indicates a shorted turn. Zero
rings indicates a possible open winding or very
low Q (quality) yoke coil with a shorted turn.
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HA325 Feature 4
Assistance Messages
Instant help messages guide you to the fault and
show you what parts to test. Press the ASSISTANCE
button anytime to access the help displays.

• Benefits
• Display the proper button to push to make a
  measurement
• Determine if the test conditions are proper
• Determine if the test results are good or bad
• Advice on what to check next

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Hand-held and battery operated
HA325 Feature 5
HA325 Accessories
Measuring just 2 x 5 x 11 weighing
approximately 2 lbs. the HA325 is ready to go
where ever you need it.
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HA325 Key Specifications
HORIZ. OUTPUT LOAD TEST SETUP Frequency Range
15-125kHz (.5kHz increments) VDC Range 0-18VDC
/- .2 volts (.1V increments) VPP Range
auto-ranged 0 - 300 VPP, 1 volt
Resolution HORIZ. OUTPUT LOAD TEST DC mA Range
0 - 200 mA (1mA resolution) uS Range .1 uS - 40
uS (resolution .1uS) Efficiency Range 0 - 99
(1 resolution) Protection Diode Fuse, 400
volts (DC Peak) SETUP OPTIONS (FLYBACK
IHVT) Presets AUTO (automatic setup), TV,
HI-SCAN Manual setup adjustable 15-40kHz from
20 kHz, VDC 1V SETUP OPTIONS (HORIZ. OUTPUT)
Presets AUTO (automatic setup), TV, HD1080,
HD720, VESA 38 kHz, VESA 48 kHz, VESA 64kHz,
VESA 75kHz, VESA 88 kHz Manual setup
adjustable. from 30 kHz, 1V) RINGER TEST Range
gt 10 uH, non-iron core Sensitivity Level Yokes
Flybacks 25, Coils and Switching X-formers 5
GENERAL Case Size 2 X 5 X 11 Display LCD
20 X 5 Weight lt2 lbs. Battery life
approximately 3.5 hours with included 6-AA NiMh
7.2V 4500 AH Recharge time 4 hours with
supplied PA273 AC Power adapter (14V, 700mA)
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HA325 Benefits
Quickly indicates if a defect exists guides
you to the defect More 1st time completes
(fewer trips back to job site) Reduces
transports back to the shop (less cabinet damage,
less labor) Faster diagnoses at the job site
(improved technician efficiency) No unnecessary
parts replacements (reduced costs) Greater
customer satisfaction!
More questions about the HA325 Horizontal Output
Flyback Analyzer? contact Sencore
at800-736-2673orsales_at_sencore.com