Hello, I am working on this sundown amp and have it diagnosed, however, just need to order replacement parts.
Does anyone know the part numbers for the following?:
27511 like in the taramps though they are the same package.
Does anyone know the part numbers for the following?:
- Output transistors marked D1 in locations Q1-Q6, Q11-Q16, Q33,Q37,Q38,Q39 (to-247 package)
- Output drive buffers in locations IC11, IC12, IC13, IC14 (sot-23-6 dbv)
Are the center leg of the 6-legged drivers directly connected?
Is this amp designated as a 1 ohm amp or a 2 ohm amp?
Is this amp designated as a 1 ohm amp or a 2 ohm amp?
Thank you Perry.
The center legs of the 6 pin drivers are not connected.
This is a 1 ohm version.
I have 147v of rail at appx 13vdc input.
I can get clean high and low side drive on either side of the amp using the two good remaining 6 pin driver chips.
So far the only bad components I’ve found are the output fets, the drive buffers and one output filter capacitor.
The center legs of the 6 pin drivers are not connected.
This is a 1 ohm version.
I have 147v of rail at appx 13vdc input.
I can get clean high and low side drive on either side of the amp using the two good remaining 6 pin driver chips.
So far the only bad components I’ve found are the output fets, the drive buffers and one output filter capacitor.
I may be mistakingly calling the 6 pin drivers “drive buffers.
The high and low outputs of the irs20957s are connected to pin 2 of the 6 pin drive buffers
The high and low outputs of the irs20957s are connected to pin 2 of the 6 pin drive buffers
So I found this information but would like to confirm if possible.
The pin out on this drive buffer looks correct.
zxgd3005e6ta
IRFP90N20D
The pin out on this drive buffer looks correct.
zxgd3005e6ta
IRFP90N20D
You probably have the driver right. The ZTC2045 has the two center terminals connected in the diagrams I have.
I didn't think they were still using the 90N20Ds but when I saw the burned outputs, that's the first thing I thought of. You're likely right there as well.
Was that all you needed?
I didn't think they were still using the 90N20Ds but when I saw the burned outputs, that's the first thing I thought of. You're likely right there as well.
Was that all you needed?
Yes sir, that is all I needed. I will update the post once I install the parts and test.
Thank you Perry!
Thank you Perry!
To help you find the part numbers for the replacement components in your Sundown amp, I'd recommend the following steps:
- Consult the Manufacturer Documentation: Check the official documentation or user manual that came with your Sundown amp. It often contains information about the specific components used in the amplifier, including part numbers.
- Visit the Manufacturer's Website: Go to the official website of Sundown Audio or the manufacturer of your amp. They might have resources or a customer support section where you can find information about replacement parts.
- Contact Customer Support: If you can't find the information you need on the manufacturer's website, consider reaching out to their customer support. They can provide you with the most accurate and up-to-date information about replacement parts.
- Check Electronics Distributors: If the above steps don't yield results, you can search for the components at popular electronics distributors or online marketplaces like Digi-Key, Mouser, or Amazon. They often have extensive databases of electronic components where you can search by specifications.
- Inspect the Components: If you have access to the damaged components, you may be able to identify part numbers by examining them closely. Look for any markings or labels on the components themselves. The markings can vary depending on the manufacturer.
- Forums and Online Communities: Consider posting your question in relevant online forums or communities where audio enthusiasts or electronics hobbyists discuss repair and replacement parts. Sometimes, experienced individuals can provide valuable insights and part numbers based on their own experiences.