Electronics Forum | Tue Jun 07 12:07:30 EDT 2016 | wlsmt
Sorry davef. I was not being clear. PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of caps where ALPHA WS-820 was for a second refl
Electronics Forum | Wed Jun 15 10:38:41 EDT 2016 | laynefelix
Hi everyone..i am new here. I am hardware design engineer and as per my experience PCBAs came out cold soldered after being reflowed the first time with ALPHA WS-820. The flux gel ALPHA WS 609 was supposed to be applied only onto the terminations of
Electronics Forum | Tue Jun 07 12:50:16 EDT 2016 | deanm
I remember doing that back in the day. We not only used bags but also wood planks. It was an old solder-cut-solder process without any top side preheaters. I wouldn't do it today because the bags would interfere with the top side preheat let alone a
Electronics Forum | Tue Jul 05 18:24:50 EDT 2016 | padawanlinuxero
Hi have you try to use some type of adhesive like loctite or a solder mask to avoid lifted components, we use both in 2 different products, we use loctite to avoid a hall inserted in a plastic carrier, lift when being solder in the solder wave, the s
Electronics Forum | Thu Jun 09 18:59:49 EDT 2016 | spoiltforchoice
You'd have more luck looking at where it is located in the circuit than posting a picture a of brown brick with contacts either end. Its fairly chunky so sure it could be a ferrite of some kind (but they are normally black) or indeed a Fuse, self re
Electronics Forum | Fri Jun 10 12:51:54 EDT 2016 | ttheis
Our company is looking to upgrade from a dek249 semi-auto printer to an automatic inline printer since we're doing some fine pitch packages which are tricky to line up, and we'll soon be tackling bga's for our products. We're looking on the used mark
Electronics Forum | Wed Jun 15 04:35:44 EDT 2016 | robl
Both are good printers, the key thing buying kit this old is availability of spares and support - Check out what is available local to you. We have 14 DEKs, which we are happy with - but the support in one of our regions is fantastic (local independ
Electronics Forum | Thu Jun 16 08:52:38 EDT 2016 | emeto
I see your point and I know you can make this machines run, but it doesn't change the fact that when you need them most they will let you down. It is almost impossible to find spare parts for some of them, as they are no longer supported. If you have
Electronics Forum | Sat Jun 11 03:27:30 EDT 2016 | muzzy
Hello. We have a problem with our Juki 740 machine. It does not start at all, both monitors are blank. The only error we can see is "FAIL" LED on CPU board and red "LD2" LED on "AC SERVO BOARD". Does anyone know what the "LD2" LED means? Or, even be
Electronics Forum | Sun Jul 10 15:25:20 EDT 2016 | bradholland
hi martin, i can help with the manuals. I just got a 740 myself and am completely new to it all. Have been learning the machine over the last couple of weeks and have it now placing my board quite nicely. however, for all my 0603 resistors, it seems
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