Question about Yamaha RX-V3800 Receiver

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Multiple speakers on zone 2 0r 3 speaker output terminals

Can I connect a six position passive switch box with six pairs of 8 ohm speakers with seperate volume controls off of sp1 or sp2 outputs ?

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I wouldn't hook anything up except what Yamaha recommends to the speaker output terminals. That's pretty much asking for trouble!

barneyluc

Posted on Oct 10, 2008

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Impedance setting on Yamaha AV Receiver


Hi. You can always use a Receiver with an output impedance that is lower than the speakers input impedance.Problems arise when you try to use a Receiver with a higher output impedance than the Speakers input impedance.

Receiver 6 ohms speakers 8 ohms......YES..
Receiver 8 ohms Speakers 6 ohms.......YES, WITH CAUTION

Jan 15, 2013 | Yamaha RX-V673 7.2 Channel AV Receiver...

1 Answer

Pioneer vsx 515 overload and shuts down what can i do to fix this problem.


hi,
First of all remove all the speaker connections from the amplifier. After that power the amplifier and check the overload (protect) show or not . if not, then any of the speaker is damaged or you have to check the impedence of your receiver and speakers. It will be written on the rear side of both receiver and speakers in ohms. PIONEER recommend to connect 8 ohms speakers in to this AV receiver. If you are using 6 ohms speakers you have to do some setting in the AV receiver.For that do the following

1. With the receiver in standby, press STANDBY/ON while holding down the SPEAKER IMPEDANCE button.( Each time you do this, you switch between the impedance settings: )


SP 6 OHM - Use this setting if your speakers are rated at 6 Ohms

SP 8 OHM - Use this setting if your speakers are rated at 8 Ohms or more


You are not able to connect speakers with impedence bellow 6 Ohms with this receiver. Becuse the AV receivers impedence range is 6 - 16 Ohms.
If then also it shows protect you have to check the amplifiers hardware.

AV receivers shows protect mode , when there is a hardware fault in side it. Its a warning that some thing is wrong.
Normally AV receivers show this when any of the output amplifier get some problem. there are six amplifiers in this AV receiver. May occur when the output diver transistors of any of the amplifier become shorted. if the output transistor get shorted this will lead to flow of current through the speakers. To prevent this there is a protection circuit for each channels. One combined output of this protection circuit is connected to the system control. when the any of the output amplifier fails, the protection circuit detects it and switch of the speaker and sent data to the system control. when the system control get this data it will give a warning to the customer through display that PROTECT.
You have to check the amplifier.
for that you need digital multimeter,soledring iron screwdrivers etc
open the amplifier , then power it on. connect the negative terminal of the multimeter any where in the chase( metal body of the amplifer). then connect the positive terminal to all the output transistors emitter pin one by one . the voltage should be bellow 0.5V. If any of the emitter of the transistor shows voltage more than 0.5V., then that amplifier stage is faulty. Remove the transistors and check it. if it is shot then replace with a new one.
after replacing the transistors do not power up the amplifier directly from the main. You have to put a bulb of 60 watts in serial.
You can do this easily remove the mains fuse. put the bulb in a holder. now you have to wire from the holder. connect one of it to the one end of the fuse holder and the other wire to the other end of the fuse holder. Why using a bulb is, if there is any further problem in the amplifier stage on which the transistors replaced, there is a possibility of the new transistor get damage. if we use a bulb in serial with its mains supply ,when any overload in the amplifier occur the bulb will drop the current, by lighting itself.
After connecting the bulb in serious power on the amplifier. watch the bulb. It should light for one or two second and go dim . if so check the display, is there is protect mode is on or not . if not and come back to normal operation ,then remove the power , remove the bulb insert fuse and check
connect the power and check.
If the bulb shows bright light then there is some component also faulty in the same amplifier. after removing the power you have to check again the amplifier stage of which the transistor is replaced, for any other faulty components.
ok

Jul 27, 2011 | Pioneer VSX-515 Receiver

1 Answer

Keeps shutting off automatically and flashes Protect before it shuts down ??


FIRST DISS-CONNECT POWER FROM RECEIVER.... DO NOT ATTEMPT ANY SERVICE / TROUBLESHOOTING PROCEDURES TO ELECTRICAL DEVICES PRIOR TO REMOVING ELECTRICAL POWER SOURCE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Now that the power cord is unplugged we can start. We shall start this repair by doing the easiest tests/checks first. That DOES NOT MEAN that just because the test is easy, its not very important.... every recommendation to follow is JUST as important as the next! (even if what is asked to be checked sounds un-important... its not! Follow this advice and YOU WILL RESOLVE YOUR ISSUE! TRUST ME... YOU WILL FIX THIS issue & before the days over.... SMILE & BE HAPPY! OK...... lets get started) First lets Check the power cord... unpluged? Sure hope so! Now the first thing that you have to do is check ALL the speaker connections at both ends!!!!!!!! (@ speaker & Receiver) Be certain ALL connections are tight & that NO strands of wire are shorting out the connections by touching each other...... the ends of ALL speaker wires must be seperate from each other at all times!!!! Each wire must ONLY be connected to one post/connector!!!!! Only ONE speaker should be connected to each terminal.... do not connect additional speakers to connections at any time!!!!!!!!!!! ONLY ONE can be applied to EACH OUTPUT TERMINAL!!!!!! If the speakers your using are fuse protected check fuses or circuit breakers accordingly. One open circuit (unconnected output terminal) or shorted (wires touching together) will immediatelly trigger receiver to SHUT DOWN!!!!!!! Receiver MUST have a load (speaker) connected to each speaker output to operate properly. Should all wires be found connected properly after checking at both speaker terminals & receiver terminals & problem is still accuring after reapplying power....... additional resistance checks must be made using an OHM Meter (available at most harware stores). If one of the speakers being used has burned out / gone bad / broke...... the only way to determine this condition is via a resistance measurment. Disconnect the speaker wire from the back of each speaker prior to doing resistance check!!! (a false reading will be observed if the speaker wire is still connected during this test) Now touch each of the two speaker terminals with one of the meter leads (the meter must be set to OHMS or RESISTANCE during this test for proper reading). The resistance reading observed should be NO LESS THAN 3 OHMS & NO MORE THAN 10 OHMS !!!!!!!!! Should the resistance/ohm's value of any speaker being used / connected to the receiver be found by the OHM Meter to read LESS than 3 OHMS = speaker shorted... MUST be replaced! Should the resistance/ohm's value of any speaker being used / connected to the receiver be found by the OHM Meter to read MORE than 10 OHMS = speaker open.... Must be replaced! Connecting damaged speakers to any receiver for a prolonged period of time WILL DAMAGE RECEIVER!!!!!!! Speaker resistance MUST be between 3 & 10 ohms to avoid damage to output transistors in receiver.... when receiver senses less than a resistance of 3 or more of a resistance than 10 @ ANY speaker terminal during operation................. IMMEDIATE AUTOMATIC SHUTDOWN OF RECEIVER WILL OCCURE!!!!!!! You've got a bad speaker or a loose speaker wire or a shorted speaker wire...... check each of your speaker connections/terminals & you'll find your problem! When you do find a loose or shorted wire associated with the speakers......... you'll have found your problem! Trust me.... you CAN do it!!!! and when you do... you will SMILE !!!!!!!! & be HAPPY!!!!!!!
GOOD LUCK!!!!!!!

May 14, 2011 | Audio Players & Recorders

1 Answer

There is not a subwoofer input jack on the back of this subwoofer. There are a set of input (negative and positive) terminals and a set of output (negative positive) terminals like would hook speaker wires...


On the back of the sub woofer you have two sets of binding post / some have spring clip terminals ( red & black ) labeled Speaker In ( sometimes High Level In ) and Speaker out.
Take 2 pairs of speaker cables and connect one end to the speaker out socket of your amplifier ( left & right ) . The other end of the cable should be connected to the sub woofer's Speaker In socket , Red to red and black to black. Now on the Speaker Out socket of the sub woofer connect your existing pair of speakers using another pair of speaker cables. If your sub woofer has a Hi Pass filter built in , you may not hear bass coming from your existing speakers with this kind of connection. Good if you have small satellite speakers.

Mar 12, 2011 | Audio Players & Recorders

1 Answer

More of a question than a problem. The speaker terminals list 8 ohm. Does this mean 8 ohm minimum, or would this output be able to support a 4 ohm load?


If the speaker terminal lists 8 ohm min on the back of the receiver, use the recommended rating, because the 4 ohm load will overheat the audio output ic's to the point it will short them or cause a shutdown in the receiver.

Jan 15, 2011 | Audio Players & Recorders

1 Answer

Our 2nd zone won't work, we get the error saying check SP wires. The wires seem connected correctly. We also can't change the volume on zone 2. The Yamaha unit is working otherwise.



Hi,

U cant get an amplified out put form ur av receiver for zone 2. speaker a A and B is the same out put of frond left and right. it is not ZONE 2 output. U can get only a pre output for zone to from this receiver. U nee a separate stereo amplifier for using zone 2 .put an amplifier in the other room, connect the zone 2 pre out to it. And do the following setup in ur av receiver .

The receiver shows check speaker cable because its amplifier minimum impedance is 8 ohms . when u connect other speaker in speaker the total impedance will come under 4 ohms. Speaker b is not ZONE 2 in this amplifier


1. press the input selector button A or B to select the source component you want to setup.

2. press and hold LEARN (on remote) button about 3 seconds by using a boll pen or similar object ( SETUP and the selected component name appear alternately in the display window.)

3. press up or down arrow to select "zone2"

4. press LEARN to complete the Zone 2 setup.

5. press source select up arrow to display Zone2 in the window.

6. press an input selector button to select input source u want to listen to in the second room

7. u can control the component by using the component control area button


ok

Dec 26, 2010 | Yamaha RX-V2200 Receiver

1 Answer

I have no shorts and the system works great at any volume level and in about ten minutes it says overload


The output transistors are over heating. Check the mounting surface to its' heat sink fins. Make sure the silicone heat compound is not dried out. Scrape the old coat then re-apply new coat if dry - should be somewhat sticky to the touch. Also, you can use an external fan to circulate the air inside. Check your speaker connections - do not parallel the speakers (having two or more connected on an output speaker terminal). This will force the amp to generate more current and cause it to heat faster. Then check the impedance of the speakers you're using - do not connect a 4 ohm speaker on an 8 ohm output terminal.

Oct 28, 2010 | Technics SA-DX940

1 Answer

Denon AVR-1907 blinking red power button


It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.

When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.

If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.

If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.

On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".

If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.

I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.

If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.

If I can be of any further help, let me know.

Jun 22, 2008 | Denon AVR-1907 Receiver

2 Answers

Onkyno receiver shuts off


My SR605 gets extremely hot. This is especially true when both amplifiers are running together supporting 2 separate channels. I added a 2 way speaker selector from Russound that supports 2 sets of 8 ohm speakers on Zone 2 and the receiver shuts down at about 74 dcbs and gets very hot. Checked the jumpers on the selector and they are set at 8ohms.

Have returned the Russound selector to them and had it checked out. Appears to be fine. Even when Zone 2 is not in use the receiver gets extremely hot. It is in a wood cabinet wih glass doors but even with the door open the temperture is very hot. As the volume is raise the heat increases and the receive trips off.

Very unusual in my opinion. Is this normel for the receiver to heat up as the volume is increased.

Jun 22, 2008 | Onkyo TX-SR605 Receiver

6 Answers

Multiple speakers in same outlet


How this reciever is set up is there are left and right A and left and right B Only one 8 ohm speaker should be attached per outlet. if you exceed that your driving the channel at a much lower resistance then the units designed for and the channel will burn up.. Oh it might last a short time but bet your last dollar it will burn up the channel if you over load it. Please dont forget to rate this.

Oct 15, 2006 | Pioneer VSX-454 Receiver

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