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Yamaha CR-620 receiver has no audio. The lights on signal meter and other meters are on, but no audio. Recently, after turning on the power, the audio would come on as much as 20 minutes after powere

CR-620 receiver.

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Posted on Jan 02, 2017

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SOURCE: Yamaha R-700 Natural Sound Stereo Receiver won't turn on.

My stereo receiver aiwa MX-NH2000 can not turn on. It has standby.

Posted on May 06, 2010

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SOURCE: I have a 70's era Yamaha Natural Sound Stereo

If there is no audible physical click from the speaker output relay, after about 10 to 20 seconds, there is an electronic fault in one or both amplifier circuits, which will require repair. If you like the sound of this unit enough to pay maybe $50 give or take, get it repaired. Otherwise, you can pick a similar unit up at a thrift shop for a few dollars.

Posted on Aug 29, 2010

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I have a 70's era Yamaha Natural Sound Stereo Receiver CR-620. It just recently stopped working. It turns on, but doesn't transit sound. Can it be fixed or is it terminal?


If there is no audible physical click from the speaker output relay, after about 10 to 20 seconds, there is an electronic fault in one or both amplifier circuits, which will require repair. If you like the sound of this unit enough to pay maybe $50 give or take, get it repaired. Otherwise, you can pick a similar unit up at a thrift shop for a few dollars.

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I have a Yamaha CR-820 unit and cannot receive an FM signal. AM is fine. Also the FM meter reads as no signal. Please help.


If I remmber correctly, the FM section is a couple of ICs (LAxxxx or LCxxxx). I will look this up when I get back to my shop. Check in the tuner area for a coupld of 14 pin ICs. Check for 12V or 5V in the area and look for poor solder joints in the area as well.

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Reciever shut off AND WILL NOT TURN BACK ON


Sounds like it could be a major problem. But...It could be as simple as a fuse.

Do you know how to use an Ohm Meter or a Multi Meter??

If not, there is still something you can check, if you feel comfortable taking the thing apart.

1. Power it down.
2. Open it up, and look for blown fuses.
3. You can't always tell by looking...especially if the are "Slow-Blow" fuses.
4. If you know how to use a multi meter, you can check the fuses in place.
4a. You have to turn it on.
4b. Put your multi meter on VAC. Put the probes on both sides of a fuse. If you measure no voltage the fuse is good. If it measures voltage, the fuse is bad. (I know it sounds backwards, but a meter only measures the difference between voltages, and a good fuse will have the same voltage on both sides, hence no voltage)
4c. Replace bad fuses.

5. If you are uncomfortable with the powered on method, you can remove the fuses, ONE AT A TIME, (so you don't get confused...no pun intended), with POWER OFF. A fuse puller is a useful tool. If you don't have one, BE CAREFUL!
5a. Put your multi meter on Ohms. Measure resistance across the fuses. If resistance is real low (like less than 4 ohms), the fuses are good. If the resistance is high (like 1k to infinity), the fuse is bad.

I hope this helps.

Good Luck!

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