Repair
Repair Price: $ 644.00
Purchase
CSL Part Number: 86729
Product Overview: The Delta Design 1661916-501 is a multi-output power supply board designed for temperature control systems and industrial ovens. It converts 24VAC center-tap input into regulated 5VDC (up to 3A via LM323T regulator) and 15VDC outputs, and controls multiple relays and solid-state relays for heating, cooling, and fan functions. The board features interlock protection and requires the voltage regulator (VR1) to be mounted to a chassis heatsink with proper electrical isolation for adequate heat dissipation. Common in Delta Design environmental chambers and thermal testing equipment.
Category: Power Supply
Manufacturer: Delta Design
Manufacturer Synonyms: Cohu
Manufacturer Part Number: 1661916-501
Common Failures
Several common issues have been identified in the repair reports for this product. These include defective components such as voltage regulators and relays, poor solder joints, and missing or blown fuses. Another recurring problem is the improper heatsinking of regulator ICs, which has been noted to cause performance issues.
Repair Approach
Repairs typically involve replacing defective components like regulators, relays, and fuses. In cases of solder joint issues or improper connections, resoldering and ensuring proper assembly have been effective. Additional care in component packaging, such as using insulating pads where needed, is also recommended to avoid shipping damage or improper installations.
Testing & Quality
Units undergo various levels of testing, including diagnostic tests with load and burn-in tests. Components are tested with standard equipment, and in some cases, custom test fixtures are constructed to simulate operational conditions. The repair process is verified according to standard procedures, and co-checking is performed.
Repair your broken Delta Design part
We can repair your Delta Design model 1661916-501 .
Please note: our repair turnaround time may be longer than our standard lead times for this item.
Step 1 -
Click the green button above, "Repair Now," and add to your RMA.
Step 2 -
Print the RMA form that is emailed to you, and put it in a box with the parts for repair.
Step 3 -
Mail the box to the address on the RMA.
You will be sent an authorization for repair via email. Your approval is needed before any work is started.
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