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Bluetooth on Vintage amps.
Bluetooth on Vintage amps.
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Old 22nd May 2020, 03:11 AM   #11
redrooster is offline redrooster  Australia
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I'm fairly sure the BT module works off 3.3v so that's 1.7v headroom for any voltage drop. Doing this will be pretty straight forward I would think?
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Old 22nd May 2020, 03:45 AM   #12
anatech is offline anatech  Canada
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Bluetooth on Vintage amps.
Well, if it has a USB jack, that's 5 VDC.
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Old 22nd May 2020, 04:16 AM   #13
redrooster is offline redrooster  Australia
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At the moment I'm using the USB-3 on my computer for charging the BT transmitter and a 5vDC 850ma output phone charger plugged into the power strip on the BT receiver end. Its all messy and complicated but the quality is crazy good in the end. lol
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Old 22nd May 2020, 04:23 AM   #14
anatech is offline anatech  Canada
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Bluetooth on Vintage amps.
Well, a 3.3 VDC regulator is pretty easy. I don't see any problem with powering this thing inside your amp.

-Chris
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Old 22nd May 2020, 04:31 AM   #15
redrooster is offline redrooster  Australia
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I'll get around to doing this when I've got the time, I have two Yamaha amps to fix in the meantime and a mobility scooter as well. Thanks for the advice Chris, it's appreciated. If it wasn't for this online help I wouldnt get very far at all?
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Old 22nd May 2020, 05:19 AM   #16
anatech is offline anatech  Canada
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Bluetooth on Vintage amps.
When you have time, what model # of Yamaha amplifiers?
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Old 23rd May 2020, 02:05 AM   #17
redrooster is offline redrooster  Australia
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One is an RX-497 stereo and the other is an RX-V430 5.1, the RX-497 had a failed film capacitor in the turn-on circuit but I popped/fried the DTC-144ESA transistor when checking things out? so I'm waiting for a replacement in the mail. The other Yammy has the same kind of problem. No turn on or display? I also have a recently acquired Sansui G-4700 that I'm going to recap and clean up the boards. It still sounds great, just a bit boomy on the bass.
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Old 23rd May 2020, 04:30 AM   #18
anatech is offline anatech  Canada
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Bluetooth on Vintage amps.
Hi redrooster,
Okay, small receivers. Fun to work on and rewarding when you fix them.
Look for the AC detect cap on the RX-V430. It's often a low value electrolytic (like 1uF) in the power supply area, or near the CPU.

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Old 25th May 2020, 11:06 AM   #19
redrooster is offline redrooster  Australia
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Oh good stuff, thanks for that Chris. I'll check it out? A guy I know works for a roadside cleanup company, he finds lots of amplifiers for me to play with.
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Old 25th May 2020, 01:29 PM   #20
Pano is offline Pano  United States
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Bluetooth on Vintage amps.
Red please do NOT quote the entire post just above yours. This is mentioned in the Rules section. Use the Reply button not the Quote button.

I have cleaned up all the over-quotes.
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