return to my achi 6500

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return to my achi 6500

Postby loady » Tue Sep 19, 2017 6:11 pm

I never really started using this, i had a thread on here about getting good temps with it and discovered that the temp probe wasnt touching the plates so i was probably getting air temp. I am looking to go back to this after three years absence. I cant find the manual for it and need to learn how to use it to reball xbox360's, i bought it from Tony on here with everything i need to do xboxes, if some one can point me to good literature to learn how to use it i would be most greatful.

Thanks.
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return to my achi 6500

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Re: return to my achi 6500

Postby code0102stinks » Wed Sep 20, 2017 12:19 am

Yeah. TC should touch the plate for proper temp control. Looks like the bottom heat on that is only 800W. That isn't much ta all even without the glass.
If you just google the manual, you can find one. Go to this link and save the PDF. IDK if it's the same version you have, but probably same machine.

https://masteram.com.ua/nfs/product/841 ... Manual.pdf
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Re: return to my achi 6500

Postby loady » Wed Sep 20, 2017 7:14 am

code0102stinks wrote:Yeah. TC should touch the plate for proper temp control. Looks like the bottom heat on that is only 800W. That isn't much ta all even without the glass.
If you just google the manual, you can find one. Go to this link and save the PDF. IDK if it's the same version you have, but probably same machine.

https://masteram.com.ua/nfs/product/841 ... Manual.pdf


thanks dude. I heard that about the bottom plates and i also heard you can replace them for better/hotter ones ?...pricey ?
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Re: return to my achi 6500

Postby code0102stinks » Thu Sep 21, 2017 12:51 pm

People have done mods to the bottom heat by replacing elements with elstein or ceramix. Haven't had time to find a thread on here of someone's mod. You will likely
need to replace bottom heat SSR if the stock one won't be enough to carry the more amps drawn by the upgraded bottom plates. If you are not good with electrical
and modifying a machine, best just to buy a different machine that has the power you need.
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Re: return to my achi 6500

Postby loady » Thu Sep 21, 2017 2:41 pm

Well, for me this was entry level, I only want to do xboxs, mainly reflows as opposed to reballs, if I get good success rates then I will look to upgrade
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Re: return to my achi 6500

Postby code0102stinks » Fri Sep 22, 2017 1:39 am

Well, looks like your machine has the square 800W 180mm by 180mm bottom heating plate. Is that correct? Others have modded their machines
with those small bottom single square heaters with three long narrow 600W elements. That requires cutting the opening in the top of your machine
larger to accommodate it. Some use elstein or ceramix plates, which are spendy, but you could go cheap and get some Chinese plates that come
in a machine like a Achi IR Pro SC. Those are 240mm long by 60mm wide. You can buy those cheap on ebay. Put them together with a slight spacing
between the plates and it will give you a heating area of 240mm by about 200mm, depending on the spacing. 1800W, use a 20A SSR for bottom heat.
I assume you are in Europe and your machine is a220vac version machine. IDK what your bottom element tray looks like. Need to make sure you can
fit three of thos elements on it or fabricate a new tray. Outlet in your house that is 15A should run that mod fine. There are people who get by with
1200W for bottom heat, but takes a while to heat up and you have to have board closer to the elements to get hot enough. Better with more power
and raise the board little higher. Better IR absorption.
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Re: return to my achi 6500

Postby jad67tony » Thu Sep 28, 2017 11:08 am

Hello,
I myself use an ACHI for 2 years.
Know that already you would not get 220 ° (big max)
Bottom should take 13mn for this.
I advise you the following.
Take out your Bottom sensor from inside the machine.
Secure it under the Motherboard directly.

You will get 220 ° between around 13mn (never below)
If you do not get this ever lifting the APU, RSX ...
Profiles Concluding to help you
Image
Top a 3.4 cm above the motherboard (possibly 3.2cm)
Image

Desoldering APU PS4 Success REPAIR REBALL OK
cordially
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Re: return to my achi 6500

Postby code0102stinks » Fri Sep 29, 2017 1:08 am

13 minutes to get to desires preheat is ok? Way too long. A Puhui T-8280 preheater will get top side to 170C in seven minutes. That is with
two 600W plates, which is too little power. 800W for bottom heat is just not enough to do large boards. The less power you have, the closer
you have to have the board to the bottom plates just to get the temp you need. And that is a problem because you are more of your heat
from convection rather than radiation. You risk having caps leak the more you rely on convection from a low wattage preheater. Better off
to mod it to 1800W or just buy a machine with sufficient amount of power on the bottom heat. My test boards would eventually start having
caps leak using them over and over again for testing on the Puhui. My DIY 2400W preheater would be able to get 170C top side of the board
in 3 minutes and 30 seconds with having the board a good 5 CM above the element. Would never make a cap leak no matter how many times
I ran that test board. It's because the heat was more form radiation and not so much convection. Convection heats the solder joints more on
the bottom of the board, therefore getting caps hotter. Shiny solder joints reflect IR.
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Re: return to my achi 6500

Postby jad67tony » Fri Sep 29, 2017 5:54 am

My friends I know all that ...
I'm talking about the Achi 6500 and not your Puhui T-8280.

I only do you indicate the power and the possible solutions with a Bottom 800W. This machine will not do better than 13mn to reach 215 °

Without this heat it is not possible to raise the APU

What you see in the picture is correct for the PS4 APU without worries ...

But in the background I obviously agree with what you say.

For my pars I risk no more since I no longer use this machine.
To dya i have HR 460 SCOTLE

You have to compare what is comparable ...

An Achi 6500 is absolutely not comparable to your Puhui T-8280.

800W against 1400W are reasonable ... there is all the difference :)

If with the Achi you hope to raise something with 170 ° you can always wait that will be impossible.
Forget the theory with the Achi because of its weak power...

I only want to help with a non modder Achi and those poor 800W lower
cordially

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Re: return to my achi 6500

Postby loady » Fri Sep 29, 2017 3:25 pm

Thanks guys. Hmmmmm, is the mod expensive to do ?...which plates would I be looking to buy and is there a guide to show how to do it ?
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