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Search: Posts Made By: keeney123
Forum: General Electronics Technical Discussion 09-28-2022, 07:32 AM
Replies: 16
Views: 1,067
Posted By keeney123
Re: Linear Garage Door Opener Control Board Repair weak capacitors

Most likely your kit is going to be the cheapest and quickest way to solve the problem.

Still, it is good to know what exactly failed. To determine if the design is bad or you just had a failure....
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-27-2022, 10:57 PM
Replies: 5
Views: 293
Posted By keeney123
Re: HELP ME ! HP 15-BS572TU Restarts

Is the screen restarting or is it the operating system that is restarting? What is the sequence of events that causes the screen restarting and when it restarts what are you observing? Is there a...
Forum: General Electronics Technical Discussion 09-27-2022, 10:46 PM
Replies: 16
Views: 1,067
Posted By keeney123
Re: Linear Garage Door Opener Control Board Repair weak capacitors

There you go.
Can the module be taken apart to find the component problem?
Forum: BIOS & Schematic Requests! 09-25-2022, 11:13 AM
Replies: 5
Views: 258
Posted By keeney123
Re: How to add missing information in Lenovo desktop and all in one pcs?

Perhaps, it would be good at this point to be specific on what the machine is so SMDFlea or someone else can help with specific support pages that can help you.
Forum: Troubleshooting Audio Equipment 09-25-2022, 09:57 AM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

It will not take you long to learn how to operate and Oscilloscope. It basically is only voltage amplitude and frequency/time. Of course, when you advance there are X-Y modes and different trigger...
Forum: Troubleshooting Audio Equipment 09-24-2022, 09:39 PM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Thanks for the explanation. If you get to frustrated with it, you could always have a bulldozer run over it on a concrete pavement.
Forum: Troubleshooting Audio Equipment 09-24-2022, 02:37 PM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

Also, note in the service manual when replacing components, it says to use silver solder.
Forum: Troubleshooting Audio Equipment 09-24-2022, 11:19 AM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

Perhaps R_J can help you with that when he gets a chance.
Forum: Troubleshooting Audio Equipment 09-24-2022, 11:17 AM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Are you saying that the AC electrical magnetic interference is causing your problem?
Forum: Troubleshooting Audio Equipment 09-23-2022, 10:28 PM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

You are tenacious a good trait in an electronic technician.
Forum: Troubleshooting Audio Equipment 09-23-2022, 11:21 AM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

Glad to hear that you got some of the display working. Hopefully you will find the solution to the small display.
Forum: Troubleshooting Audio Equipment 09-23-2022, 11:15 AM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

I have not been an active technician in the field for several years. With that said in order to troubleshoot a problem that the company is not willing to do to component level you would need to have...
Forum: Troubleshooting Audio Equipment 09-22-2022, 07:44 PM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

I believe the DM on the chip may stand for Delco Motorola. This could be wrong. It just would make sense to have an IC manufacturer build your ICs with your design and then put the product together...
Forum: Troubleshooting Audio Equipment 09-22-2022, 04:07 PM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Before you go and buy the New AVR with the 3-year warranty. Read the warranty and all the ways they can escape the warranty. Make sure you buy from an authorized dealer otherwise the warranty will...
Forum: Troubleshooting Audio Equipment 09-22-2022, 12:28 PM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

Thanks RJ for helping out. I believe he will be able to use this schematic for the display troubleshooting. He just needs to remember his wrist strap to ground when working on it. At per instructions...
Forum: General Electronics Technical Discussion 09-22-2022, 12:14 PM
Replies: 7
Views: 472
Posted By keeney123
Re: Transistor substition

Thanks, lotas for the help.
Forum: General Electronics Technical Discussion 09-22-2022, 11:56 AM
Replies: 7
Views: 472
Posted By keeney123
Re: Transistor substition

Here is catalog distributors for Infineon irf3205

https://www.infineon.com/cms/en/about-infineon/company/find-a-location/distribution/catalogue-distribution.html

Here is all distributor for...
Forum: General Electronics Technical Discussion 09-22-2022, 11:48 AM
Replies: 7
Views: 472
Posted By keeney123
Re: Transistor substition

The manufacturing companies have a lot more power in getting their product to market then their distributors. If the manufacturer is not getting feedback from the customer that needs the product,...
Forum: General Computer & Tech Discussion 09-22-2022, 11:36 AM
Replies: 9
Views: 564
Posted By keeney123
Re: [Q] Format Bitlocked M.2/NVME ?

First does the drive show up in Windows file explorer?
Forum: Troubleshooting Audio Equipment 09-22-2022, 07:51 AM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Simple want to collect a paycheck without doing work.
Forum: General Electronics Technical Discussion 09-22-2022, 07:48 AM
Replies: 7
Views: 472
Posted By keeney123
Re: Transistor substition

I could not find a simple cross reference to this particular manufacturer.

You might want to contact support for Texas Instruments to help you find an equivalent.
This is their support contact...
Forum: General Electronics Technical Discussion 09-22-2022, 07:21 AM
Replies: 7
Views: 472
Posted By keeney123
Re: Transistor substition

My suggestion is the write to the Company that makes the IC and tell them the problem you are having getting their product. This is their contact link.
https://www.vbsemi.com/index.php?catid=45
...
Forum: Troubleshooting Audio Equipment 09-21-2022, 11:03 PM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Unbelievable. No wonder there is so much junk on the market. If something is wrong with the design, they will never know it because they just will keep replacing boards.
Forum: Troubleshooting Audio Equipment 09-21-2022, 05:12 PM
Replies: 22
Views: 922
Posted By keeney123
Re: Car Audio Delco identification and restoration / repair

Seems to be a model number 16066335.

This site may help.

https://classicoldsmobile.com/forums/parts-sale-11/delco-am-fm-radio-equalizer-1980s-1990s-150403/
Forum: Troubleshooting Audio Equipment 09-19-2022, 11:15 PM
Replies: 42
Views: 1,352
Posted By keeney123
Re: Nearing wit's end troubleshooting NAD T777 v3 AVR

Fytonv if you decide to take the unit to NAD first ask them if they troubleshoot the units down to component level. Then post what they said here.
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