Repair
Repair Price: $ 1,336.00
Purchase
CSL Part Number: 67426
Product Overview: The Dukane 1A4250 is a 250-watt paging amplifier designed for commercial and industrial audio distribution systems. It delivers high-power audio to large areas such as factories, warehouses, schools, and office complexes. The unit features a robust output stage with eight TO-3 power transistors configured for reliable, continuous operation. It operates from AC mains power and includes thermal management components to handle sustained high-output demands typical of public address and emergency notification systems.
Category: Amplifiers
Manufacturer: Dukane
Manufacturer Part Number: 1A4250
Keep your paging system up and running.
Common Failures
This product may experience blown fuses upon powering on. Evaluation typically reveals defective output transistors and other circuit board components. Issues such as shorted outputs have also been observed.
Repair Approach
The repair process may include replacing defective output transistors and associated pre-driver transistors. Damaged traces on the circuit board are repaired as needed, and out-of-spec resistors are replaced. Board-mounted electrolytic capacitors are replaced to support reliable operation. Preventative component upgrades may be implemented where appropriate.
Testing & Quality
Post-repair testing is conducted to verify product functionality. Tests may include checking DC offset voltage readings, output transistor bias readings, and AC power voltage and current draw at idle. A 1 kHz sine wave may be applied to both inputs to test for distortion, with measurements taken at multiple output levels. These tests help verify the product operates within expected parameters.
Service and repair your broken Dukane part
We can repair your Dukane model 1A4250 in our facility. Let our skilled technicians get your Dukane back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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