Re: Yamaha RX-V479: Bridge Rectifier Question
I have pulled and tested dozens of transistors and all of them tested good. I bought a Peak DCA75 and double checked them, all good. The bridge rectifier tested good. I don't see any sign of a bad cap. Thoughts?
manfriend
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Last Activity: 09-14-2019, 04:48 AM
Joined: 06-01-2018
Location: Louisville, KY
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Re: Yamaha RX-V479: Bridge Rectifier Question
I got side tracked by life a few times the past couple of weeks. I have been pulling transistors and testing them, a lot of them, and so far I haven't found a bad one. I've been looking up their data sheet and using this guide to test them: [url]https://vetco.net/blog/test-a-transistor-with-a-multimeter/2017-05-04-12-25-37-07[/url]Re: Yamaha RX-V479: Bridge Rectifier... far I haven'tLeave a comment:
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Re: Yamaha RX-V479: Bridge Rectifier Question
I've only checked one of the big transistors so far and it was fine and I haven't had a chance to pull any others yet. I will later this week and let you know what I have found. Thanks again for the advice!Leave a comment:
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Re: Yamaha RX-V479: Bridge Rectifier Question
Heeding CapLeaker's advice I started working back from the bridge rectifier and pulling and checking components. The first things are two big caps both 8200uf 63v. They both test within 8% of the 8200uf but they both show 0.00 ESR on my Peak ESR70 meter. Is that normal for an audio capacitor? I checked them both with an ohm meter and one shows .OL and the other shows 2.395 M ohms and climbing.
Thanks for your sage advice.Leave a comment:
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Re: Bridge Rectifier Question
The flow chart seems to point to excess heat from the bridge rectifier tripping the protection circuit. The only way I could turn the receiver on for more than 5 seconds was to use protection cancel mode and run through the self diagnosis. The power amplifier could be it as well. I'm attaching some mroe images....Leave a comment:
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Re: Bridge Rectifier Question
Rx-v479Leave a comment:
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Yamaha RX-V479: Bridge Rectifier Question
I have a Yamaha receiver and the self diagnosis points to a faulty bridge rectifier activating the self protection circuit. It calls for a TS6P03G 6A 200V. The size is very specific as I have discovered and I can't find one any where. Would it be safe to deviate from the amp rating? The volts? Here's the data sheet on what I need: [URL="https://www.mouser.com/datasheet/2/395/TS6P01G%20SERIES_K15-1115464.pdf"]https://www.mouser.com/datasheet/2/395/TS6P01G%20SERIES_K15-1115464.pdf[/URL]. Do I need to keep turning over rocks till I find this bridge rectifier? Thanks for any help.I have -
Re: Yamaha RXV 465 no display and power problem
My kid is bi-polar and she threw the board (Control 2) at me and the top popped off the relay and something(s) came out and I never found what it was.I'm new and couldn't find the actual replacement. Everything I found was out of stock. Thank you for the help!Leave a comment:
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Re: Yamaha RXV 465 no display and power problem
Also, let me apologize for butting in on another discussion. I just saw a thread on a Yamaha receiver and thought this would be a good place to make an inquiry. Thanks.Leave a comment:
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Re: Yamaha RXV 465 no display and power problem
I'm also working on a Yamaha receiver but it's a RX-V479. I need a relay for it. A TV-8. Service manual sayeth replace with a DG5D1-O(M)-II. I cannot find one of these to save my life. Best I could do was find a place that was out of stock but might ship August 3rd. Is there anything I can use to replace this? It's a TV-8, 5V DC, 5V coil, 8A 250V AC, 8A 30V DC. See image for details. I appreciate any help!...Leave a comment:
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