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All specifications are subject to change without notice.
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TDK-Lambda
CPF1000F 280-*
Series
INSTRUCTION MANUAL
8. Before Concluding Power Module Damage
Verify following items before concluding power module damage.
1) No output voltage
Is specified input voltage applied?
Are the ON/OFF control terminal (CNT, SG), remote sensing terminal (+S, -S), output voltage trimming
terminal (TRIM) correctly connected?
Is output current of the auxiliary power supply for external signals terminal (AUX) within the specified value?
For cases where output voltage adjustment is used, is the resistor or variable resistor setting, connections
correctly done?
Are there no abnormalities in the output load used?
Is the baseplate temperature within the specified temperature range?
2) Output voltage is high
Are the remote sensing terminals (+S, -S) correctly connected?
Is the measurement done at the sensing points?
For cases where output voltage adjustment is used, is the resistor or volume setting, connections correctly done?
3) Output voltage is low
Is specified input voltage applied?
Are the remote sensing terminals (+S, -S) correctly connected?
Is the measurement done at the sensing points?
For cases where output voltage adjustment is used, is the resistor or variable resistor setting, connections
correctly done?
Are there no abnormalities in the output load used?
4) Load regulation and line regulation is large
Is specified input voltage applied?
Are the input terminals and the output terminals firmly connected?
Is the measurement done at the sensing points?
Is the input or output wire too thin?
5) Output ripple voltage is large
Is the measuring method used the same or equivalent with the specified method in the Application Notes?
Is the input ripple voltage value within the specified value?
9. Warranty Period
Warranty period is 5 years.
For damages occurring at normal operation within this warranty period, repair is free of charge.
Following cases are not covered by warranty
(1) Improper usage like dropping products, applying shock and defects from operation exceeding
specification of the unit.
(2) Defects resulting from natural disaster (fire, flood etc.)
(3) Unauthorized modifications or repair by the buyers’ defects not cause by our company.