T862++ IRDA Welder

[dick_barton]

Does anyone use the above station who can offer advice on it's use through their experience?

Temperature settings, lens distance from IC to be removed, times of heating for the removal/reflowing of various IC packages.

Thanks

[dick_barton]

Re: T862++ IRDA Welder

So it finally arrived and I have had a few days to test it out removing chips from damaged boards.
My conclusion is that although it looks as though it should do the job; it just doesn’t.

It has an adjustable heater baseplate which works well but that’s the only part of it that does.

The temperature settings for removing the IC's is user pre-set using the up/down temperature setting on the front panel and indicated on the LED display. This is not a closed loop system i.e. no feedback so the temperature appears to be regulated by the lamp being cycled on/off which it does when set between 240 – 250 degrees. When measuring the temperature, I found it to be about 40 degrees higher than it was set for.

Setting the temperature above 250 degrees there is no regulation of the heat, not even on/off cycles and the temperature at the IC level quickly climbs to in excess of 400 degrees.

It does allow for the removal of smaller IC’s which are not bonded to the board without too much difficulty. The tops of larger IC’s bubble up before they finally are removed from the board.

As you can tell by now I’m far from impressed with this product.

[ecking767]

Re: T862++ IRDA Welder

I have the T-862++ and I use it to un-solder or and solder all other SMD IC's except for BGA chips. yes there is no feedback system in place so you must monitor and time each process. I have an external temperature meter and a timer for this reason.

I monitor the temperature in Fahrenheit not in Celsius. And yes I have burn some IC's in the beginning, after you get the timing down you will be OK.

as for BGA chip, I have another unit for that, theT-870 which work great on BGA chip.

[stj]

Re: T862++ IRDA Welder

it's pretty obvious from the size of the heater that it's intended for mobile phone repair.
i hope some scumbag is not miss-selling this for large repairs like ps3 or laptops!

[dick_barton]

Re: T862++ IRDA Welder

Hello ecking767,
I have decided to keep it because it does remove the smaller IC's without difficulty but I'm finding the larger ones especially those with a solder ground plane underneath to be destroyed getting them off.

I totally agree with the need to monitor the temperature using an external temperature gauge which I have.

I am definately lacking the knowledge of themperature and time for the removal of various devices packages and I would be extremely grateful if you could offer some guidance on this.

Thanks you for your reply which was most helpful.

[dick_barton]

Re: T862++ IRDA Welder

it's pretty obvious from the size of the heater that it's intended for mobile phone repair.
i hope some scumbag is not miss-selling this for large repairs like ps3 or laptops!

Here's one advert for it.

"Sanven T862++ Rework Station Adjustable Infrared Eye Protection Infrared Smt Smd Soldering Welder Bga Machine A 120 X120Mm A 650W Controlled Pre-Heating System Suitable For The Entire Component"

[stj]

Re: T862++ IRDA Welder

A 650W Controlled Pre-Heating System Suitable For The Entire Component"

says it all - fuckers.
the pre-heater is supposed to heat the entire pcb to prevent warping, not just the part to lift!!!!