I have an older receiver model RX-V2700. After searching on the internet could not find many (if any) people modding Yamaha receivers. Would appreciate response from anyone that has done one. Also would really appreciate schematic if someone has one.
Best Bang for Buck only please and thank you.
Best Bang for Buck only please and thank you.
I presently own the Yamaha RX-V1600 and definitley considering some mods like replacing opamps with National LM4562NAs and critcal capacitors with Black Gate N series nonpolar in Super E configuration. These mods I've done to Auzentech Meridian PC soundcard which jawdropping SQ results.
iF ANYONE CAN HELP i WOULD LIKE TO GET MY HANDS ON THE RX-V1600 SCHEMATICS. thanks.
iF ANYONE CAN HELP i WOULD LIKE TO GET MY HANDS ON THE RX-V1600 SCHEMATICS. thanks.
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Hi weaponx,
What you just did was an attempted thread jack. I'm sure you didn't mean to do this.
To answer your question, no. Leave it at that for now.
Please start your own thread for requests like this.
Hi morfeeus,
You are very close to the same situation as weaponx. Same advice.
-Chris
What you just did was an attempted thread jack. I'm sure you didn't mean to do this.
To answer your question, no. Leave it at that for now.
Please start your own thread for requests like this.
Hi morfeeus,
You are very close to the same situation as weaponx. Same advice.
-Chris
Receivers squeeze a lot of functionality is to a relatively small space. It's not always too clear where one logical function leaves off and another begins. This could be especially true in the boundry between preamp and amp. To much "integration" can make diy mods awkward. They also don't leave a lot leeway regarding heat anything that increases the operating temp carried risks.
Nonetheless, it the unit is old enough just replacing electolytics might be helpful since those are first to the first components to expire. Once open I would zap all the pots (volume, balance etc with contact cleaner). If you can identify the opamps (if any) you might see if there is an opportunity there. I don't think you will get fabulous improvements from changing opamps, but lowering the noise might be possible.
And if any turn out to be RC4136 - there is NO direct replacement. The pinouts don't agree with anything else. However, you can get an adapter from Brown Dog that lets you solder two SMT dual SMT opamps on a small PCB that then plugs in to the RC4136 position Could let you upgrade to the equivalent of a quad version of NE5534. Brown Dog has some other adapters that can be handy for upgrading.
I don't know how old your unit is but if it has gold nickle plated RCA jacks, see if you can replace them with gold plated ones. I'm not one that beieves gold plate is magic but it does avoid oxidized contacts which can become noisy overtime.
Hi sam9,
-Chris
I disagree. Most Gold plated sockets suffer excessive plating wear. I'd rather have cadmium plating than a worn gold one. Nickel is interesting, copper would be the best if you didn't have to clean the oxides off every time you change connections.
-Chris
You are probably right about cadmium especially if you pull the plugs on and off a lot. I experience dates bake to mid 70's where every 6 months I had to clean the oxidation of the RCA connectors between a Girrard (sp?) turntable and a Marantz receiver. I would usually become aware of the need when I noticed sound coming from only one speaker. Other times I would notice faint crackly noise from one side or the other. In either cas cleaning the plugs and jacks fix the problem for a while. This never seems to be an issue cwith run of the mill gold plated plugs which I just connect and leave be for months and sometimes years.
Now that I think of it, I've got a DMM that needs to have the plugs and jacks squirted with Deoxit every few months to avoid absurdly bogus readings.
Hi sam9,
Use 99% alcohol for your meter leads. Much better but you may need to do this more often. If you expect a high accuracy reading, you need to clean your terminals right before. Depends on the resolution of your equipment though.
Also, don't forget that a jack has two mating surfaces. There is a plug involved as well. The condition of the pin is very important. One with a bit of solder over will bend your center contact apart.
-Chris
Use 99% alcohol for your meter leads. Much better but you may need to do this more often. If you expect a high accuracy reading, you need to clean your terminals right before. Depends on the resolution of your equipment though.
Also, don't forget that a jack has two mating surfaces. There is a plug involved as well. The condition of the pin is very important. One with a bit of solder over will bend your center contact apart.
-Chris
dudes!!
The mods I refer to are serious component replacement parts that would make an absolute dramatic improvement in sound quality. My reciever is 2 years old not some ancient decades old archived stereo product. The mods I have done to my soundcard I believe to be are the best parts available at a reasonable price that could acheive the best sound qualities possible for my sound preferences today, for the parts I required. I am looking to do the same mods for the receiver to bring up the level of performance that I've done for the PC card. Cheaply $100.00. My sound card modded to me sounds like a 5k CD player.
The mods I refer to are serious component replacement parts that would make an absolute dramatic improvement in sound quality. My reciever is 2 years old not some ancient decades old archived stereo product. The mods I have done to my soundcard I believe to be are the best parts available at a reasonable price that could acheive the best sound qualities possible for my sound preferences today, for the parts I required. I am looking to do the same mods for the receiver to bring up the level of performance that I've done for the PC card. Cheaply $100.00. My sound card modded to me sounds like a 5k CD player.
Hi morfeeus,
You may be able to improve the sound, I'll bet you can. The problem is that the way these new sets are made, including the power supply and heat sinks, you are attempting to make a pig fly. The amplifier design and layout have sunk you before you even start. You're stuck with it. So you will improve the sound quality but it will never be great. Sorry.
-Chris
Okay, a few comments then .... Keep your shirt on meantime, okay?
The average consumer audio component reached it's peak in performance and sound quality in the late 70's and early 80's. Since then, most of it is significantly worse than those earlier sets. Never mind that the earlier sets had larger power transformers and bigger heat sinks. By comparison, your 2 year old thingy is supposed to have higher power and 5 channels on top of that. I'm shakin' in my boots .... Dude!
I doubt that very strongly, but okay. If you say so.
Now here we see where you have little understanding when it comes to power amplifiers.
You may be able to improve the sound, I'll bet you can. The problem is that the way these new sets are made, including the power supply and heat sinks, you are attempting to make a pig fly. The amplifier design and layout have sunk you before you even start. You're stuck with it. So you will improve the sound quality but it will never be great. Sorry.
I have a shocking suggestion for you. Why not call Yamaha and buy the service manual? You will need it and they are not expensive. I used to know their number off by heart. (416) 298-1311. After 10 years! That's scary!! I wonder if Matt Hubbard is still the service manager, he's a decent guy.
-Chris
Why not just blow your $100 on wanky interconnects, then you don't run the risk of burning yourself with your soldering iron.
I say this as someone who, like you, has modified their soundcard to improve its performance, but I did this thoughtfully, not by just whacking in some overpriced capacitors.
I'm with anatech. The performance of your amplifier is not going to be limited by distortion in a few random passives.
I say this as someone who, like you, has modified their soundcard to improve its performance, but I did this thoughtfully, not by just whacking in some overpriced capacitors.
I'm with anatech. The performance of your amplifier is not going to be limited by distortion in a few random passives.
On more on the topic...
Hi morfeeus,
consider this:
A good decoupling cap with long leads will be degraded to a not so good cap, maybe not an improvement at all over the original cap.
A large coupling cap will pickup more airborne noise then a small cap due to larger surface area. Take great care where to place the cap if it not fits in the original place, definitely not directly over a digital chip.
Hi morfeeus,
consider this:
A good decoupling cap with long leads will be degraded to a not so good cap, maybe not an improvement at all over the original cap.
A large coupling cap will pickup more airborne noise then a small cap due to larger surface area. Take great care where to place the cap if it not fits in the original place, definitely not directly over a digital chip.
I think we are back to my observations near the start of the thread. Receivers cram so much functionality in to so little space that they have to make compromises. One compromise is that in general they leave very little leeway for making mods. AVR's even more so. The manufacturers have pretty much learned how far they can push the limits. Back i the good old 70's, the same company would have been less sure how far it could (for instance in terns of power density) and tended to "over build" the product for typical consumer use.
Actually I think this is good thing so far as the average (non-audio nut) buyer goes. The functionality to price relationship is very good. It's what I would do if I were running the company. Of course, if I were running a smaller audiophile oriented company I would probably do something different, like not even offer a receiver.
Actually I think this is good thing so far as the average (non-audio nut) buyer goes. The functionality to price relationship is very good. It's what I would do if I were running the company. Of course, if I were running a smaller audiophile oriented company I would probably do something different, like not even offer a receiver.
I just had another thought. Does this unit have pre-outs. One of the more useful things you can do with a receiver especially an AVR is to use it like tuner/preamp/processor and use a separate and core capable amplifier. Audiophile processor/preamp are pretty pricey and may or may not perform better (noise floor etc) compared to the corresponding section in some receivers.
Hi sam9,
Most Yamaha receivers do have RCA outputs. They also use the better DSP chips in their upper models. This is one area where Yamaha is very good, but that is for surround sound. 2 channel audio is very limited in North America.
-Chris
Most Yamaha receivers do have RCA outputs. They also use the better DSP chips in their upper models. This is one area where Yamaha is very good, but that is for surround sound. 2 channel audio is very limited in North America.
-Chris
Hey DIY'ers.
I would like to take back a few hasty words from my previous post specifically "some ancient decades old archived stereo product" Sorry for the insult and the intrusion of discussing my soundcard mods on this thread.
I understand the all the rage I've wrongfully so initiated. I have overstepped the boundiries by being so negative.
Just like you to know sum bits about myself. I am by no means knowledgable in the field of electronics. I've been a audiophile in audio equipment most my life taking pleasure in enjoying music and experiencing decades of audio products that have forth come.
My earliest product experience (ownership) being the INFINITY QLS 1 and PHASE LINEAR 500 and 4000. Next decade being Classe' DR2 25 watt class A power amp and Presence Audio Linestage 1 Then a few years later Bryston 4bst with Balanced Audio Technologies VK-3i Pre. Just like you to understand and not boast my experience with audio equipment.
Basically I would like to enhance the equipment I presently own being on another level of performance of course.
Keep up the informative posts. I'm takin it all in.
I would like to take back a few hasty words from my previous post specifically "some ancient decades old archived stereo product" Sorry for the insult and the intrusion of discussing my soundcard mods on this thread.
I understand the all the rage I've wrongfully so initiated. I have overstepped the boundiries by being so negative.
Just like you to know sum bits about myself. I am by no means knowledgable in the field of electronics. I've been a audiophile in audio equipment most my life taking pleasure in enjoying music and experiencing decades of audio products that have forth come.
My earliest product experience (ownership) being the INFINITY QLS 1 and PHASE LINEAR 500 and 4000. Next decade being Classe' DR2 25 watt class A power amp and Presence Audio Linestage 1 Then a few years later Bryston 4bst with Balanced Audio Technologies VK-3i Pre. Just like you to understand and not boast my experience with audio equipment.
Basically I would like to enhance the equipment I presently own being on another level of performance of course.
Keep up the informative posts. I'm takin it all in.
Hi morfeeus,
That's fair enough. I'm glad you are posting on this topic again.
Realistically, you can improve the signal stages with op amp upgrades. You may want to look at your low voltage power supplies also.
The power amplifier stages can be improved also, but don't expect fabulous performance. Yamaha MI amps are good, and some consumer separate amplifiers. Late model receivers are hampered by cost constraints.
To start, did you order the service manual from Yamaha? When I did warranty service for them, the manuals ran about $20. Not bad at all.
-Chris
That's fair enough. I'm glad you are posting on this topic again.
Realistically, you can improve the signal stages with op amp upgrades. You may want to look at your low voltage power supplies also.
The power amplifier stages can be improved also, but don't expect fabulous performance. Yamaha MI amps are good, and some consumer separate amplifiers. Late model receivers are hampered by cost constraints.
To start, did you order the service manual from Yamaha? When I did warranty service for them, the manuals ran about $20. Not bad at all.
-Chris
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