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Lab Gruppen FP14000 clone amplifiers - Page 86

post #2551 of 4392
Thread Starter 
any soldering iron will work really, i just heated and removed. It's trivial if you can solder. If not, practice first I guess. May have to add some solder since removing the wire will take some with it.

I use this guy:

http://www.amazon.com/Weller-WESD51-Digital-Soldering-Station/dp/B000ARU9PO

They have an analog version too

http://www.amazon.com/Weller-WES51-Analog-Soldering-Station/dp/B000BRC2XU

If you don't solder a lot, no need for something like that.

Gear mentioned in this thread:

post #2552 of 4392
It's been a while since I have soldered, and I am a bit nervous going back at it on the LG, but I feel confident enough my hands won't be shaking, haha. I have both covers off and the stock fans out, so I just need to reroute the new wiring and should be good to go. any tips on soldering the inline resistors to the small fans?
post #2553 of 4392
Quote:
Originally Posted by beastaudio View Post

It's been a while since I have soldered, and I am a bit nervous going back at it on the LG, but I feel confident enough my hands won't be shaking, haha. I have both covers off and the stock fans out, so I just need to reroute the new wiring and should be good to go. any tips on soldering the inline resistors to the small fans?

Remember, the solder follows the heat, so heat the wire/resister/connection and apply the solder to the connection not the tip of the iron. I have also found that medical locking pliers help to hold things in place for me.
post #2554 of 4392
Thread Starter 
Quote:
Originally Posted by beastaudio View Post

It's been a while since I have soldered, and I am a bit nervous going back at it on the LG, but I feel confident enough my hands won't be shaking, haha. I have both covers off and the stock fans out, so I just need to reroute the new wiring and should be good to go. any tips on soldering the inline resistors to the small fans?

I just tin both the leads, then heat them together and hold real still until they cool.
post #2555 of 4392
Also tinning the tip of the iron helps dramatically to transfer heat to the wire. I typically melt the wire on the iron when holding the iron against the wire and then once the solder flows into the wire move to feeding the solder into the wire itself.

Experiment to see what works best for you.
post #2556 of 4392
All done!!! Does this look like a decent spot for the resistors? I didn't have near as much wire to put them where you did Not'

post #2557 of 4392
oh c'mon I posted a pic and everything!! I want to fire this thing up!! Any takers?!?!
post #2558 of 4392
I have no idea if your work is correct. I'm just offering moral support since no one else responded.
post #2559 of 4392
Haha! Thanks bud. I fired it up anyway, quiet as a mouse (for an amp). Just want to confirm that the resistors are ok wrapped and sitting where they are. Other than that, the amp is still working fine smile.gif I'll count myself lucky!
post #2560 of 4392
Thread Starter 
resistor in a bad spot, can impact fan or impede airflow. The red solder point looks anemic, add some solder or make sure its on there good
post #2561 of 4392
Quote:
Originally Posted by notnyt View Post

resistor in a bad spot, can impact fan or impede airflow. The red solder point looks anemic, add some solder or make sure its on there good

Red solder points are on there very good, I just didn't get much on the top of the wire. I ended up scooting the resistors further into that gap so they rest comfortably between the two fans and the transformer. They aren't all the way in there, but the fan operates just fine and they don't stick out near as far in front of the fan as they did. Testing with the cover off, I still get good flow over the transformer as well. I really didn't have enough wire coming from the fans to get them over where you did, which I agree is a much better space smile.gif
post #2562 of 4392
I found a power cable Sanway can use on these amps biggrin.gif

post #2563 of 4392
biggrin.gif
post #2564 of 4392
Quote:
Originally Posted by lukeamdman View Post

I found a power cable Sanway can use on these amps biggrin.gif

Nice, what type of plug is that?
Edited by javi404 - 2/27/13 at 2:20pm
post #2565 of 4392
Looks like an IEC pin and sleeve, 240v or possibly 3 phase power.
Now we are talking! biggrin.gif
post #2566 of 4392
Looks to me like 3 Phase 415V.
post #2567 of 4392
We use that plug in Italy with 400V 3 phase.
post #2568 of 4392
Well my amp took a dump. It will come on like everything is fine but every now and then it will kick off and kick back on at random times but it seems like its getting progressively worse. Unfortunately, I don't even know where to begin to diagnose this thing... I'll see what they have to say about it.
post #2569 of 4392
Quote:
Originally Posted by Shan87 View Post

Well my amp took a dump. It will come on like everything is fine but every now and then it will kick off and kick back on at random times but it seems like its getting progressively worse. Unfortunately, I don't even know where to begin to diagnose this thing... I'll see what they have to say about it.

What were you doing with it just before the failure?
post #2570 of 4392
Quote:
Originally Posted by Shan87 View Post

Well my amp took a dump. It will come on like everything is fine but every now and then it will kick off and kick back on at random times but it seems like its getting progressively worse. Unfortunately, I don't even know where to begin to diagnose this thing... I'll see what they have to say about it.

That is exactly what mine did.
post #2571 of 4392
Quote:
Originally Posted by BassThatHz View Post

What were you doing with it just before the failure?

Actually, nothing when it originally started I came home and I heard the amp cycling on and off... (Left it on from the night before) Switched it off for a bit and then turned it back on and it worked fine or so I thought. Now at random times it just starts cycling.

How do you measure and what are both pot adjustments supposed to be spec'ed at?

Reply from Johnson
Quote:
Dear Shane,

So terrible sorry to know this FP14000 is failure now.

That means you can't turn on this amplifier normally, it is on and off constantly, right? If so, please unsolder one foot of R42 and R50 components as attached picture, then measure the impedence for me.

Please note the R42 and R50 are located on the power supply board.
post #2572 of 4392
Question for you FP14000 owners.. How far have to taken your amp before clipping? Do you even see the amber lights or do you always try and keep it in the green?! cool.gif
post #2573 of 4392
Quote:
Originally Posted by Jason kiDD View Post

Question for you FP14000 owners.. How far have to taken your amp before clipping? Do you even see the amber lights or do you always try and keep it in the green?! cool.gif
Thats a good question. I have a couple times had my vpl lights flash and quickly turned it down. I think its kinda deceiving because the lights from the leds kinda bleed into each other, if that makes sense.
post #2574 of 4392
Quote:
Originally Posted by keager View Post

Thats a good question. I have a couple times had my vpl lights flash and quickly turned it down. I think its kinda deceiving because the lights from the leds kinda bleed into each other, if that makes sense.

No makes perfect sense which is why i asked.. lol
Interested in seeing if anyone else lived on the edge..
post #2575 of 4392
Unfortunately, my 10000Q is located in an adjacent closet, so I can't monitor the lights very easily. However, with two underfloor infinite baffle manifolds each housing a pair of XXX 18's, by that point the floor, and consequently everything attached to the floor( walls, furniture, pictures, kids, small animals) are shaking so violently that I don't dare turn it up further. I'd like to hear other's opinions as well.
post #2576 of 4392
Quote:
Originally Posted by keager View Post

Unfortunately, my 10000Q is located in an adjacent closet, so I can't monitor the lights very easily. However, with two underfloor infinite baffle manifolds each housing a pair of XXX 18's, by that point the floor, and consequently everything attached to the floor( walls, furniture, pictures, kids, small animals) are shaking so violently that I don't dare turn it up further. I'd like to hear other's opinions as well.

I concur, house will shake violently. Oh... sorry I thought you wanted an opinion on your subs. tongue.gif
post #2577 of 4392
Thread Starter 
pain / max excursion before clipping
post #2578 of 4392
Quote:
Originally Posted by notnyt View Post

pain / max excursion before clipping

HAHA okay i feel better now about letting the amber lights show a little more and really see what the amp can do.. cool.gif
post #2579 of 4392
I've briefly hit the amber lights, it sounds nasty when it does because the amplifier starts to compress the output signal.
I had it turned up hella loud though. (The amp remained cool.)
I'll create a youtube vid of it when I get around to it.
post #2580 of 4392
I have never seen the amber lights, but when mine is hitting the -4 number strongly I can hear something coming from the amp that sounds like electrical shorting almost. Not sure if that is the VPL kicking in or what, but I didn't take kindly to that sound and try to avoid getting to that point anymore...
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